JPH1067579A - Production of double-layer water-permeable paving block - Google Patents

Production of double-layer water-permeable paving block

Info

Publication number
JPH1067579A
JPH1067579A JP24114896A JP24114896A JPH1067579A JP H1067579 A JPH1067579 A JP H1067579A JP 24114896 A JP24114896 A JP 24114896A JP 24114896 A JP24114896 A JP 24114896A JP H1067579 A JPH1067579 A JP H1067579A
Authority
JP
Japan
Prior art keywords
aggregate
weight
mixed
parts
pavement block
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
JP24114896A
Other languages
Japanese (ja)
Inventor
Akira Kondo
亮 近藤
Masatoshi Hasegawa
正敏 長谷川
Naotake Kimura
尚武 木村
Sunao Tanabe
直 田辺
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NIPPON YUUSHIYOKU RENGA KOGYO
NIPPON YUUSHIYOKU RENGA KOGYO KK
TOKYO MET GOV GESUIDO SERVICE
TOKYO MET GOV GESUIDO SERVICE KK
Original Assignee
NIPPON YUUSHIYOKU RENGA KOGYO
NIPPON YUUSHIYOKU RENGA KOGYO KK
TOKYO MET GOV GESUIDO SERVICE
TOKYO MET GOV GESUIDO SERVICE KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NIPPON YUUSHIYOKU RENGA KOGYO, NIPPON YUUSHIYOKU RENGA KOGYO KK, TOKYO MET GOV GESUIDO SERVICE, TOKYO MET GOV GESUIDO SERVICE KK filed Critical NIPPON YUUSHIYOKU RENGA KOGYO
Priority to JP24114896A priority Critical patent/JPH1067579A/en
Publication of JPH1067579A publication Critical patent/JPH1067579A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/02—Agglomerated materials, e.g. artificial aggregates
    • C04B18/023—Fired or melted materials
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/08—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding porous substances
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
    • C04B2111/00284—Materials permeable to liquids
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00612—Uses not provided for elsewhere in C04B2111/00 as one or more layers of a layered structure
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Civil Engineering (AREA)
  • Road Paving Structures (AREA)
  • Processing Of Solid Wastes (AREA)
  • Porous Artificial Stone Or Porous Ceramic Products (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)

Abstract

PROBLEM TO BE SOLVED: To produce a lightweight double-layer water-permeable paving block having a high added value by effectively utilizing an incineration furnace ash such as a sewage sludge. SOLUTION: A mixed powder F, prepared by adding 6-20 pts.wt. total amount of a mixture E containing a clay and a glass powder and/or water glass to be bonding parts to 100 pts.wt. mixed aggregate D obtained by mixing >=60 pts.wt. porous aggregate A, prepared by granulating an incineration furnace ash and baking the granulated ash and having >=0.6mm grain diameter, <=1.45 average apparent specific gravity and closed cells with <=40 pts.wt. total amount of an aggregate B of a crushed porcelain and/or an aggregate C of a crushed feldspar and capable of forming a bulk layer is filled in a pressing mold to fill a predominant quantity of the volume of the pressing mold. The balance of the volume of the pressing mold is then filled with a mixed powder H, obtained by adding 6-20 pts.wt. total amount of the mixture E containing the clay and the glass powder and/or the water glass to be the bonding parts to 100 pts.wt. mixed aggregate G containing >=80wt.% total amount of the aggregate B of the crushed porcelain and/or the aggregate C of the crushed feldspar and capable of forming a surface layer. The bulk layer and the surface layer are integrally press formed and subsequently baked to produce a double-layer water-permeable paving block.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は廃棄物の焼却炉灰を
有効利用した舗装ブロックの製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a pavement block by effectively utilizing waste incinerator ash.

【０００２】[0002]

【従来の技術】都市ゴミや下水汚泥をそのままの状態で
埋め立て処分すると埋立地が短期間で満杯になる。埋立
地の確保が困難であるので、都市ゴミを焼却して焼却炉
灰の状態に減容してから埋め立てる方法が採用されてい
る。しかし、焼却炉灰の状態にまで減容しても、発生す
る焼却炉灰の量は多く、やはり埋め立地の確保を必要と
する他、運搬費、作業費等が要るので埋め立てをしない
方法が望まれる。2. Description of the Related Art Landfilling of urban garbage and sewage sludge as it is, fills the landfill in a short period of time. Because it is difficult to secure a landfill, a method has been adopted in which municipal garbage is incinerated to reduce the volume to the state of incinerator ash before landfill. However, even if the volume is reduced to the state of incinerator ash, the amount of incinerator ash generated is large, so it is necessary to secure a landfill site, as well as transportation and work costs, etc. Is desired.

【０００３】焼却炉灰を有効利用できれば、すなわち焼
却炉灰を有用な製品に変えることができれば、その後の
焼却炉灰の処理費用を節減でき、埋立地が不要となる。
このため、焼却炉で焼却炉灰を溶融して焼却炉灰を骨材
として取り出し、道路工事用の骨材等に使用する技術が
開発されている。しかし、焼却炉灰の発生量が多いこと
から、種々の用途を開発して処分する必要がある。[0003] If the incinerator ash can be used effectively, that is, if the incinerator ash can be converted into a useful product, the cost of the subsequent treatment of the incinerator ash can be reduced, and no landfill is required.
For this reason, a technique has been developed in which the incinerator ash is melted in an incinerator to take out the incinerator ash as aggregate and use the aggregate for road construction. However, because of the large amount of incinerator ash generated, it is necessary to develop and dispose of various uses.

【０００４】焼却炉灰の用途の一例として、歩道の舗装
ブロックがある。特に最近は透水性の舗装ブロックが開
発され、実用化されている。歩道に透水性ブロックを舗
装すると、降雨時に雨水が地面に滲み込むことによって
下水道施設の負担が軽減され、都市河川への降雨による
雨水の一時的な流入量を減らすことができる。また、地
下水の枯渇を防げ、これによって地中温度の上昇や地中
における酸欠状態を防げ、街路樹などの成育が盛んにな
るという効果が得られる。One example of the use of incinerator ash is in pavement blocks on sidewalks. Particularly recently, a permeable pavement block has been developed and put into practical use. If a permeable block is paved on the sidewalk, rainwater seeps into the ground during rainfall, thereby reducing the burden on sewerage facilities and reducing the temporary inflow of rainwater from rainfall into urban rivers. In addition, it is possible to prevent the depletion of groundwater, thereby preventing an increase in the underground temperature and an oxygen deficiency state in the underground, and an effect of increasing the growth of street trees and the like.

【０００５】気孔率が大きい透水性舗装ブロックは歩行
時に滑りにくく、少々の降雨では水たまりができない。
さらに、歩道に保水性が付与されてコンクリート舗装や
アスファルト舗装と比べて路面の温度が上昇しにくく、
多孔質であることによって断熱性があり、軽量であれば
建築物の屋上に張るルーフデッキにも使いやすいという
長所がある。[0005] A permeable pavement block having a high porosity is not slippery when walking, and a puddle cannot be formed by a little rainfall.
In addition, water retention is given to the sidewalk, and the temperature of the road surface is less likely to rise compared to concrete pavement and asphalt pavement,
The porous material has the advantage that it has heat insulation properties, and if it is lightweight, it can be easily used for a roof deck that is installed on the roof of a building.

【０００６】透水性舗装ブロックにはインターロッキン
グブロック協会の品質規格がある。その規格によれば曲
げ強度が３０ｋｇ／ｃｍ2以上、圧縮強度が７０ｋｇ／
ｃｍ2以上、透水係数が１．０×１０-2ｃｍ／ｓｅｃ以
上の物性が要求される。透水性舗装ブロックの例として
は、東レ社からトレスルーの名称で磁器質の透水性舗装
ブロックが販売されている。カタログによれば、この磁
器質ブロックの嵩比重は１．６０ｇ／ｃｍ3、曲げ強度
は４０ｋｇ／ｃｍ2以上、圧縮強度は２００ｋｇ／ｃ
ｍ2、透水係数は２．０×１０-2ｃｍ／ｓｅｃである。[0006] The permeable pavement block has a quality standard of the Interlocking Block Association. According to the standard, the bending strength is 30 kg / cm 2 or more, and the compressive strength is 70 kg / cm 2.
cm 2 or more and a water permeability of 1.0 × 10 −2 cm / sec or more are required. As an example of the permeable pavement block, a porcelain permeable pavement block is sold by Toray under the name Tresle. According to the catalog, the bulk density of this porcelain block is 1.60 g / cm 3 , the bending strength is 40 kg / cm 2 or more, and the compressive strength is 200 kg / c.
m 2 , and the water permeability is 2.0 × 10 −2 cm / sec.

【０００７】焼却炉灰を原料に使用した透水性舗装ブロ
ックの例として、不二見セラミックス社からナチュラル
ウオークの名称で透水性舗装ブロックが販売されてい
る。カタログによれば、この透水性舗装ブロックの嵩比
重は約１．５３〜１．５６ｇ／ｃｍ3であり、特に記載
はないが曲げ強度、圧縮強度及び透水係数は上記品質規
格を満たすものと考えられ、着色された表面層を有する
透水性舗装ブロックが開示されている。[0007] As an example of a permeable pavement block using incinerator ash as a raw material, a permeable pavement block is sold by Fujimi Ceramics Co. under the name of Natural Walk. According to the catalog, the bulk specific gravity of this permeable pavement block is about 1.53 to 1.56 g / cm 3 , and although not particularly described, it is considered that the bending strength, the compressive strength and the water permeability satisfy the above-mentioned quality standards. A permeable pavement block having a colored and colored surface layer is disclosed.

【０００８】愛知県常滑窯業技術センターの分析データ
によれば、名古屋市の山崎汚泥処理場における下水汚泥
の焼却炉灰の分析値はＳｉＯ2が４６．２重量％、Ａｌ2
Ｏ3が１５．８重量％、Ｆｅ2Ｏ3が１０．８重量％、Ｐ2
Ｏ5が１３．４重量％、ＣａＯが５．４８重量％、Ｍｇ
Ｏが２．３８重量％、Ｎａ2Ｏが１．２４重量％、Ｋ2Ｏ
が１．９１重量％、ＴｉＯ2が０．６６重量％、灼熱減
量が１．７０重量％であり、耐火度はＳＫ０３ａ（１０
４０℃）と低い。According to the analysis data of the Tokoname Ceramics Technology Center in Aichi Prefecture, the analysis value of the incinerator ash of sewage sludge at the Yamazaki sludge treatment plant in Nagoya City was 46.2% by weight of SiO 2 and Al 2
O 3 15.8% by weight, Fe 2 O 3 10.8% by weight, P 2
O 5 13.4% by weight, CaO 5.48% by weight, Mg
2.38% by weight of O, 1.24% by weight of Na 2 O, K 2 O
Is 1.91% by weight, TiO 2 is 0.66% by weight, loss on ignition is 1.70% by weight, and the fire resistance is SK03a (10%).
40 ° C).

【０００９】また、配管技術１９９３年６月号７８頁以
下（以下文献ａという）によれば、東京都下水道局では
汚泥の焼却炉灰を人工軽量骨材にすることを発案し、三
井造船社の協力によって汚泥焼却炉灰を１００％使用し
た人工軽量骨材の製造プラントが開発された。この人工
軽量骨材の製造技術は、膨張性頁岩を焼成して人工軽量
骨材を製造する技術を焼却炉灰に応用したものである。
すなわち、微粉砕した下水汚泥の焼却炉灰を糖蜜のアル
コール発酵廃液をバインダーに用いてパン型造粒器で丸
い粒子に造粒し、乾燥した造粒物を多段噴流炉中に送り
込み、約１０５０℃に加熱して粒子の表面を半溶融状態
とし、焼却炉灰中に含まれる高温揮散成分をガス化して
発泡させ、膨らんだ粒子を高温域から取り出して空冷
し、独立気泡を多く含む球状或は楕球状の人工軽量骨材
を得ている。Also, according to the piping technology, June 1993, page 78 et seq. (Hereinafter referred to as reference a), the Tokyo Metropolitan Sewerage Bureau proposed to use sludge incinerator ash as artificial lightweight aggregate, and Mitsui Engineering & Shipbuilding Co., Ltd. A plant for producing artificial lightweight aggregates using 100% sludge incinerator ash was developed with the cooperation of. This technology for producing artificial lightweight aggregate is obtained by applying the technology of producing artificial lightweight aggregate by firing expansive shale to incinerator ash.
That is, the incinerator ash of finely pulverized sewage sludge is granulated into round particles by a pan-type granulator using an alcohol fermentation waste liquid of molasses as a binder, and the dried granulated product is fed into a multi-stage jet furnace, and is subjected to about 1050 ° C to make the surface of the particles semi-molten, gasify the high-temperature volatile components contained in the incinerator ash and foam them, take out the swollen particles from the high-temperature range, air-cool, and obtain spherical or spherical particles containing many closed cells. Has obtained an oval artificial lightweight aggregate.

【００１０】この汚泥焼却炉灰の化学成分は、ＳｉＯ2
が３９．５５重量％、Ａｌ2Ｏ3が１６．４１重量％、Ｆ
ｅ2Ｏ3が１１．７５重量％、ＦｅＯが２．０９重量％、
Ｐ2Ｏ5が１０．１０重量％、ＣａＯが８．３６重量％、
ＭｇＯが２．４６重量％、Ｎａ2Ｏが１．８４重量％、
Ｋ2Ｏが１．３６重量％、ＳＯ3が０．８４重量％、Ｃが
０．６７重量％、ＣＯ2が０．１３重量％、灼熱減量が
２．６７重量％である。汚泥焼却炉灰を１００％原料と
するこの人工軽量骨材は独立気泡を多量に含んでおり、
粒径が０．６〜３．５ｍｍである軽量細骨材の吸水率は
８．８％、絶乾比重（見掛け比重に同じ）は１．４０、
単位容積重量は０．８６８ｋｇ／リットルである。この
人工軽量細骨材はスラジライトと名付けられ、フラワー
ポット、鉢植え砂、建材用骨材、下水道用透水性材料、
下水砂ろ過装置のろ過材などに一部使用されている。し
かし、汚泥の焼却炉灰は一般に暗灰色を帯びており、汚
泥の焼却炉灰のみでは装飾性のある色調を得るのが難し
い。The chemical component of the sludge incinerator ash is SiO 2
39.55% by weight, Al 2 O 3 16.41% by weight, F
e 2 O 3 11.75% by weight, FeO 2.09% by weight,
P 2 O 5 is 10.10% by weight, CaO is 8.36% by weight,
2.46% by weight of MgO, 1.84% by weight of Na 2 O,
K 2 O is 1.36% by weight, SO 3 is 0.84% by weight, C is 0.67% by weight, CO 2 is 0.13% by weight, and the ignition loss is 2.67% by weight. This artificial lightweight aggregate made of 100% sludge incinerator ash contains a large amount of closed cells,
The water absorption of the lightweight fine aggregate having a particle size of 0.6 to 3.5 mm is 8.8%, the absolute specific gravity (same as the apparent specific gravity) is 1.40,
The unit volume weight is 0.868 kg / liter. This artificial lightweight fine aggregate is named Slajilite, flower pot, potted sand, construction material aggregate, sewer permeable material,
Partly used as a filter material for sewage sand filtration equipment. However, sludge incinerator ash generally has a dark gray tinge, and it is difficult to obtain decorative colors only with sludge incinerator ash.

【００１１】実開平２−２５８８号公報には、焼却炉灰
を溶融した水砕スラグを骨材に用いることによって骨材
の原料コストを低減した歩道用透水性舗装ブロックが提
案されている。この透水性舗装ブロックは焼成しないで
セメントによって結合してある。また、スラグ骨材に特
有の色以外の色に着色するため表面層の骨材にはスラグ
骨材を使用せず、天然細石又は人工砕石を骨材に使用
し、これに顔料を混合した表面層を有する複層透水性舗
装ブロックを提案している。Japanese Utility Model Laid-Open No. 2-2588 discloses a permeable pavement block for sidewalks in which the cost of raw materials for aggregates is reduced by using granulated slag obtained by melting incinerator ash as aggregates. This permeable pavement block is bonded by cement without firing. In addition, the surface layer is made of natural fine stone or artificial crushed stone without using slag aggregate as the aggregate of the surface layer in order to color it in a color other than the color unique to slag aggregate. A multi-layer permeable pavement block with layers has been proposed.

【００１２】特公平７−２５６００号公報にはセラミッ
クス粉末（焼却炉灰は使用していない）を球状に造粒し
た粒度の揃った平均粒径が２ｍｍ程度の球状骨材を骨材
に使用し、熱膨張率が小さいフラックス成分を結合部に
加えて焼成した透水性が良好で目詰まりしにくい舗装ブ
ロックが開示されている。また、顔料で着色した細かい
平均粒径の球状骨材で形成された表面層をバルク層と一
体化した複層舗装ブロックが提案されている。同公報中
の実施例には得られた透水性ブロックの物性値について
の記載がないが、強度が大きく、透水性が良好で目詰ま
りしにくいものであるとしている。Japanese Patent Publication No. 7-25600 discloses a method in which ceramic powder (incinerator ash is not used) is formed into a spherical shape, and a spherical aggregate having a uniform average particle size of about 2 mm is used as the aggregate. A pavement block is disclosed in which a flux component having a small coefficient of thermal expansion is added to a joint portion and fired, and the pavement block has good water permeability and is hardly clogged. Further, there has been proposed a multilayer pavement block in which a surface layer formed of a fine-grained spherical aggregate colored with a pigment is integrated with a bulk layer. Although there is no description about the physical properties of the obtained water-permeable block in the examples in the publication, it is described that the water-permeable block has high strength, good water permeability, and is hardly clogged.

【００１３】[0013]

【発明が解決しようとする課題】本発明は、下水汚泥や
都市ゴミの焼却炉灰を有効利用した、軽量で付加価値の
高い複層透水性舗装ブロックの提供を目的とする。SUMMARY OF THE INVENTION It is an object of the present invention to provide a lightweight, high value-added, multi-layer permeable pavement block utilizing ash from sewage sludge and municipal waste effectively.

【００１４】[0014]

【課題を解決するための手段】本発明の複層透水性舗装
ブロックの製造方法は、焼却炉灰を造粒して焼成した粒
径０．６ｍｍ以上で平均見掛け比重が１．４５以下の独
立気泡を有する多孔質骨材Ａ６０重量部以上に、磁器を
砕いた骨材Ｂ及び／又は長石を砕いた骨材Ｃを合量で４
０重量部以下混合した混合骨材Ｄ１００重量部に対し、
結合部となる粘土とガラス粉末及び／又は水ガラスを含
む混合物Ｅを合量で６〜２０重量部加えたバルク層を形
成する混合粉体Ｆをプレス型に充填してプレス型の容積
の過半を充填し、プレス型の容積の残部を、磁器を砕い
た骨材Ｂ及び／又は長石を砕いた骨材Ｃを合量で８０重
量％以上含む混合骨材Ｇ１００重量部に対し、結合部と
なる粘土とガラス粉末及び／又は水ガラスを含む混合物
Ｅを合量で６〜２０重量部加えた表面層を形成する混合
粉体Ｈで充填し、バルク層と表面層を一体にプレス成形
し、次いで焼成することを特徴とする。According to the present invention, there is provided a method for producing a multi-layer permeable pavement block according to the present invention, wherein an incinerator ash is granulated and fired, and the average apparent specific gravity is 1.45 or less. A total of 4 parts of aggregate B crushed with porcelain and / or aggregate C crushed with feldspar is added to 60 parts by weight or more of porous aggregate A having bubbles.
0 parts by weight or less, based on 100 parts by weight of the mixed aggregate D,
A mixed powder F for forming a bulk layer to which a mixture E containing 6 to 20 parts by weight of a mixture E containing clay, glass powder and / or water glass as a bonding portion is filled in a press mold, and a majority of the volume of the press mold is filled. And the remaining part of the volume of the press mold is combined with the combined part with 100 parts by weight of the mixed aggregate G containing the aggregate B crushed with porcelain and / or the aggregate C crushed with feldspar in a total amount of 80% by weight or more. The mixture E containing 6 to 20 parts by weight of a mixture E containing clay and glass powder and / or water glass is filled with a mixed powder H for forming a surface layer, and the bulk layer and the surface layer are press-formed integrally, Then, firing is performed.

【００１５】通常セラミックスは気孔率が大きいほど軽
量であるが、気孔率が大きいと強度は逆に小さくなる。
しかし、独立気泡の多い多孔質骨材を使用すると多孔質
であっても強度の大きい焼結体を得ることができる。ま
た、独立気泡は閉気孔ともいい、表面に連がっていない
閉じた気孔を意味し、多孔質骨材中の独立気泡の量は見
掛け比重によって規定される。たとえば骨材の見掛け比
重が約１．５で骨材を構成する材料の平均真比重が２．
０（この種材料の真比重は通常２より大きい）であると
き、約２５％の独立気泡を含むことになる。本発明はこ
の効果を応用して大きい気孔率（小さい嵩比重）と実用
性のある強度を同時に具備する複層透水性舗装ブロック
を実現したものである。[0015] Generally, the higher the porosity of a ceramic, the lighter it is. However, if the porosity is large, the strength is conversely reduced.
However, when a porous aggregate having many closed cells is used, a sintered body having high strength can be obtained even if it is porous. In addition, closed cells are also referred to as closed pores, meaning closed pores not connected to the surface, and the amount of closed cells in the porous aggregate is defined by an apparent specific gravity. For example, the apparent specific gravity of the aggregate is about 1.5 and the average true specific gravity of the material constituting the aggregate is 2.
When 0 (the true specific gravity of this material is usually greater than 2), it will contain about 25% closed cells. The present invention realizes a multi-layer water-permeable pavement block having both high porosity (low bulk specific gravity) and practical strength by applying this effect.

【００１６】本発明の複層透水性舗装ブロックでは、バ
ルク層の多孔質骨材Ａが粘土とガラス粉末及び／又は水
ガラスを含む結合部となる混合物Ｅによって結合され
る。結合部となる混合物Ｅにガラス粉末や水ガラスを使
用すると舗装ブロックの焼成温度を低くでき、骨材の表
面がガラス質の皮膜で覆われて気孔の内面が滑らかにな
るので透水性がよく、複層舗装ブロックに透水性を付与
している気孔が土砂によって閉塞しにくくなる。また、
結合部となる混合物Ｅに粘土（細かい粉末である）を使
用すると複層舗装ブロックの強度を大きくできる。すな
わち、バルク層は独立気泡を有する平均見掛け比重が
１．４５以下の多孔質骨材Ａを６０重量％以上含む混合
骨材Ｄ１００重量部に対して粘土とガラス粉末及び／又
は水ガラスを含む結合部となる混合物Ｅを６〜２０重量
部配合した混合粉体Ｈをプレス成形し、次いで焼成す
る。この場合、バルク層の焼成収縮と表面層の焼成収縮
に差があって反りがでるときは、バルク層と表面層に混
合する混合物Ｅの調合割合、あるいは骨材への混合物Ｅ
の混合量を変えて調整するとよい。In the multilayer water-permeable pavement block of the present invention, the porous aggregate A of the bulk layer is bonded by the mixture E serving as a bonding portion containing clay and glass powder and / or water glass. When glass powder or water glass is used for the mixture E to be the bonding portion, the firing temperature of the pavement block can be lowered, and the surface of the aggregate is covered with a vitreous film and the inner surface of the pores becomes smooth, so that water permeability is good. Pores imparting water permeability to the multi-layer pavement block are less likely to be closed by earth and sand. Also,
The use of clay (which is a fine powder) for the mixture E serving as a joint can increase the strength of the multilayer pavement block. That is, the bulk layer is composed of 100 parts by weight of the mixed aggregate D containing 60% by weight or more of the porous aggregate A having an average apparent specific gravity of 1.45 or less and having a closed cell, and containing clay, glass powder, and / or water glass. Of powder mixture in which 6 to 20 parts by weight of the mixture E to be mixed is press-formed and then fired. In this case, if there is a difference between the firing shrinkage of the bulk layer and the firing shrinkage of the surface layer, and the warpage occurs, the mixing ratio of the mixture E to be mixed into the bulk layer and the surface layer or the mixture E to the aggregate.
It is advisable to adjust the amount by changing the mixing amount.

【００１７】粒径０．６ｍｍ未満という嵩比重の小さい
多孔質骨材の製造は難しく、骨材が粒径０．６ｍｍ未満
の細かい骨材を多く含むと舗装ブロックの透水性が小さ
くなり、土砂で気孔の目詰まりしやすく透水性が劣化す
るので、骨材には粒径０．６ｍｍ以上の骨材を使用す
る。また、焼却炉灰からなる多孔質骨材Ａの使用量を多
くできれば複層舗装ブロックを安く製造できる。バルク
層の骨材中の多孔質骨材Ａの使用量は好ましくは７０重
量％以上である。It is difficult to produce a porous aggregate having a small bulk specific gravity of less than 0.6 mm, and if the aggregate contains many fine aggregates having a particle size of less than 0.6 mm, the water permeability of the pavement block decreases, and Therefore, the pores are easily clogged and the water permeability deteriorates. Therefore, an aggregate having a particle size of 0.6 mm or more is used as the aggregate. Further, if the amount of the porous aggregate A made of incinerator ash can be increased, a multilayer pavement block can be manufactured at a low cost. The amount of the porous aggregate A used in the aggregate of the bulk layer is preferably 70% by weight or more.

【００１８】粘土とガラス粉末及び／又は水ガラスを組
み合わせた混合物Ｅによる結合部は焼結体に大きい強度
を付与する効果がある。この混合物Ｅの混合骨材Ｄ１０
０重量部と混合骨材Ｇ１００重量部に対する混合量が６
重量部より少ないと実用性のある大きい強度を付与する
のが困難になり、２０重量部より多いと骨材粒子間に存
在する気孔が少なくなって良好な透水性を有するブロッ
クが得られない。透水性舗装ブロックの強度と透水性の
バランスを考慮すると、混合骨材Ｄ及び混合骨材Ｇの１
００重量部に対する混合物Ｅの配合量はいずれも８〜１
５重量部とするのが好ましい。また、混合物Ｅ中の粘土
とガラス粉末及び／又は水ガラスの配合量は粘土３５〜
６５重量％に対しガラス粉末及び水ガラスを合わせて６
５〜３５重量％とするのが好ましい。バルク層と表面層
の両方の結合部に同じ混合物Ｅを使用すればブロックの
製造工程を簡略化でき、同時に複層舗装ブロックの焼成
時の反りを少なくでき、バルク層と表面層の接合強度を
大きくできる。The joint of the mixture E in which the clay and the glass powder and / or the water glass are combined has an effect of giving a large strength to the sintered body. The mixed aggregate D10 of this mixture E
0 parts by weight and 100 parts by weight of the mixed aggregate G are 6
If the amount is less than 10 parts by weight, it is difficult to provide a practically large strength. If the amount is more than 20 parts by weight, pores existing between the aggregate particles are reduced, and a block having good water permeability cannot be obtained. Considering the balance between the strength and permeability of the permeable pavement block, one of the mixed aggregate D and the mixed aggregate G
The blending amount of the mixture E with respect to 00 parts by weight was 8 to 1
Preferably it is 5 parts by weight. Further, the compounding amount of the clay and the glass powder and / or water glass in the mixture E is 35 to 35 clay.
65% by weight of glass powder and water glass together
The content is preferably 5 to 35% by weight. If the same mixture E is used for both the joints of the bulk layer and the surface layer, the process of manufacturing the block can be simplified, and at the same time, the warpage of the multilayer pavement block during firing can be reduced, and the bonding strength between the bulk layer and the surface layer can be reduced. Can be larger.

【００１９】[0019]

【発明の実施の形態】焼却炉灰特有の灰色や焼却炉灰を
酸化雰囲気中で焼成したときの酸化鉄の赤茶色以外の装
飾性のある色調に複層舗装ブロックの表面を淡色又は好
みの色に着色するため、複層舗装ブロックをバルク層と
表面層からなる複層構造とする。すなわち、表面層に着
色が容易な無色又は淡色の骨材を８０重量％以上使用
し、複層透水性舗装ブロックの体積の過半を占めるバル
ク層を形成する混合粉体Ｆには多孔質骨材Ａを６０重量
％以上使用することによって複層舗装ブロックの嵩比重
を小さくでき、焼却炉灰を多量消化できる。表面層の厚
さは、薄い方がブロックを軽量化できるが、あまり薄い
と表面層が摩耗したときにバルク層の色がブロック表面
に出て見栄えを損ね、製造時にその厚さを均等化するの
が難しいので３〜１０ｍｍ、あるいは複層舗装ブロック
全体の厚さの５〜１６％とするのが好ましい。BEST MODE FOR CARRYING OUT THE INVENTION The surface of a multi-layer pavement block has a light color or a desired color in a decorative color other than reddish brown of iron oxide when incinerator ash is baked in an oxidizing atmosphere in an oxidizing atmosphere. In order to be colored, the multilayer pavement block has a multilayer structure including a bulk layer and a surface layer. That is, a colorless or light-colored aggregate that is easily colored is used for the surface layer in an amount of 80% by weight or more, and the mixed powder F that forms a bulk layer that occupies a majority of the volume of the multilayer water-permeable pavement block is a porous aggregate. By using A in an amount of 60% by weight or more, the bulk specific gravity of the multilayer pavement block can be reduced, and a large amount of incinerator ash can be digested. The thinner the surface layer, the lighter the block can be, but if it is too thin, the color of the bulk layer will appear on the block surface when the surface layer is worn out, impairing the appearance and equalizing the thickness during manufacturing Therefore, the thickness is preferably 3 to 10 mm, or 5 to 16% of the total thickness of the multilayer pavement block.

【００２０】本発明の複層透水性舗装ブロックでは、バ
ルク層と表面層をプレスで一体成形し、次いで焼成し、
複層透水性舗装ブロックとする。この複層舗装ブロック
のバルク層に使用した多孔質骨材Ａ中にある独立気泡は
複層舗装ブロックの透水性には寄与せず、専ら多孔質骨
材間に形成された気孔を経て透水する。本発明の複層舗
装ブロックの主原料は、好ましくは文献ａに記載された
方法、すなわち焼却炉灰を造粒し、多段噴流炉中で焼成
して製造された球状あるいは楕球状の骨材を使用する。
文献ａの方法で製造された骨材はその熱処理時に半溶融
状態を経ているので、骨材の独立気泡を除く組織は緻密
で強度が大きく、これを主原料として成形し、次いで焼
成された複層舗装ブロックはその骨材中に気泡を多く含
んでいても強度が大きく、独立気泡を多く含む分だけ骨
材の嵩比重が小さく、ブロックは軽量となる。In the multilayer water-permeable pavement block of the present invention, the bulk layer and the surface layer are integrally formed by pressing and then fired.
Multi-layer permeable pavement block. The closed cells in the porous aggregate A used for the bulk layer of the multilayer pavement block do not contribute to the water permeability of the multilayer pavement block, and are exclusively transmitted through the pores formed between the porous aggregates. . The main raw material of the multilayer pavement block of the present invention is preferably a method described in Document a, that is, a spherical or elliptical aggregate produced by granulating incinerator ash and firing in a multistage jet furnace. use.
Since the aggregate manufactured by the method of Document a has undergone a semi-molten state at the time of heat treatment, the structure of the aggregate except for closed cells is dense and has a high strength. The layer pavement block has a high strength even if the aggregate contains a lot of air bubbles, the bulk specific gravity of the aggregate is small by the amount of a lot of closed cells, and the block is light in weight.

【００２１】磁器を砕いた骨材Ｂや長石の骨材Ｃは多孔
質骨材Ａと比べて１００℃近く耐火度が高い。耐火度の
高いこれらの骨材を耐火度の低い多孔質骨材と混合して
使用すると複層舗装ブロックの焼成時におけるブロック
の寸法変化と変形を小さくできる。このため、バルク層
の骨材にこれらの骨材を混合すると複層舗装ブロックの
焼成を容易にできる。磁器を砕いた骨材Ｂは通称セルベ
ンと呼ぶ磁器タイルその他の磁器の不合格品を破砕した
骨材であり、着色が容易な淡色ないし白色の骨材であ
る。長石はたとえば風化した花崗岩の砂中に多く含ま
れ、磁器の原料に使用されるもので、長石の骨材Ｃは骨
材Ｂを代替しうる無色ないし白色の骨材である。セルベ
ンと長石の骨材は手間をかけない方が安価であるので球
状或いは楕球状に形成しなくてもよい。骨材間に形成さ
れる気孔は、骨材の平均粒径が大きい方が、また骨材の
粒径が揃っている方が多くなり、透水性が高い。また、
球状又は楕球状に造粒されていない、破砕された角ばっ
た骨材Ｂと骨材Ｃを多く配合してなる表面層は、舗装ブ
ロックとして使用するとき滑りにくい表面を有するとい
う利点がある。Aggregate B obtained by crushing porcelain or feldspar aggregate C has a high fire resistance near 100 ° C. as compared with porous aggregate A. When these aggregates having a high fire resistance are mixed with a porous aggregate having a low fire resistance, the dimensional change and deformation of the multilayer pavement block during firing can be reduced. For this reason, if these aggregates are mixed with the aggregate of the bulk layer, the firing of the multilayer pavement block can be facilitated. Aggregate B obtained by crushing porcelain is an aggregate obtained by crushing porcelain tiles and other rejected porcelain, commonly called selven, and is a light-colored or white aggregate that is easily colored. Feldspar is contained abundantly in, for example, weathered granite sand and used as a raw material for porcelain. Aggregate C of feldspar is a colorless or white aggregate that can substitute aggregate B. Selven and feldspar aggregates are less expensive if they do not require any labor, so they need not be formed into spherical or elliptical shapes. As for the pores formed between the aggregates, the larger the average particle diameter of the aggregate and the more uniform the particle diameter of the aggregate, the higher the water permeability. Also,
The surface layer formed by blending a large amount of crushed square aggregate B and aggregate C that is not granulated into a spherical shape or an oval spherical shape has an advantage of having a non-slip surface when used as a pavement block.

【００２２】表面層の骨材は、焼却炉灰を造粒した多孔
質骨材Ａの配合割合を混合骨材Ｇ中の２０重量％以下と
少なくし、淡色ないし白色の骨材Ｂ及び骨材Ｃの配合割
合を多くする。すなわち、表面層は着色するため、ある
いは白に近い色調とするため骨材Ｂや骨材Ｃを骨材Ｇ中
合わせて８０重量％以上配合する。骨材Ｂと骨材Ｃは多
孔質骨材Ａより気孔率が小さく緻密である分だけ耐摩耗
性があり、ブロックの表面層が耐摩耗性に優れたものと
なる。さらに好ましくは着色のための顔料を加えて表面
層を形成する。表面層に使用する混合骨材Ｇは、好まし
くはその平均粒径をバルク層の混合骨材Ｄの平均粒径よ
り小さくすると複層舗装ブロックを施工したときの外観
が良好になる。As the aggregate of the surface layer, the mixing ratio of the porous aggregate A obtained by granulating the incinerator ash is reduced to 20% by weight or less in the mixed aggregate G, and the light or white aggregate B and the aggregate are reduced. Increase the mixing ratio of C. That is, in order to color the surface layer or to obtain a color close to white, the aggregate B and the aggregate C are combined in an amount of 80% by weight or more in the aggregate G. The aggregates B and C have a small amount of porosity compared to the porous aggregate A and have a high abrasion resistance because they are dense, and the surface layer of the block has excellent abrasion resistance. More preferably, a surface layer is formed by adding a pigment for coloring. If the average particle size of the mixed aggregate G used for the surface layer is preferably smaller than the average particle size of the mixed aggregate D of the bulk layer, the appearance when the multilayer pavement block is constructed is improved.

【００２３】ブロックを焼成する最適温度は混合粉体Ｆ
と混合粉体Ｈの調合割合や使用原料の耐火度によって変
化するが、実用性のある十分な強度を付与できるように
１０３０℃以上で焼成するのが好ましい。あまり焼成温
度を高くすると複層舗装ブロックが変形したり気孔率が
小さくなったりするので、１１００℃以下で焼成するの
が好ましい。舗装ブロックに強度と透水性をバランスよ
く付与できるように、焼成温度は１０４０〜１０７０℃
とするのがさらに好ましい。ブロックの焼成時間が短か
過ぎると複層舗装ブロック中に焼成ムラが生じて強度そ
の他の複層舗装ブロックの品質が安定しないので、上記
焼成温度に保持する焼成時間は３〜１２時間とするのが
好ましく、バッチ式焼成炉を使うときの昇温から冷却ま
での焼成炉の運転時間は２４〜３５時間とするのが好ま
しい。The optimum temperature for firing the block is mixed powder F
Although it varies depending on the blending ratio of the mixed powder H and the fire resistance of the raw material used, it is preferable to bake at 1030 ° C. or higher so as to give practically sufficient strength. If the firing temperature is too high, the multi-layered pavement block is deformed or the porosity decreases, so firing at 1100 ° C. or less is preferable. The sintering temperature is 1040 to 1070 ° C so that the pavement block can be imparted with good balance of strength and water permeability.
More preferably, If the firing time of the block is too short, uneven firing occurs in the multi-layer pavement block, and the strength and other quality of the multi-layer pavement block are not stable. Therefore, the firing time maintained at the above-mentioned firing temperature should be 3 to 12 hours. It is preferable that the operation time of the firing furnace from temperature increase to cooling when using a batch type firing furnace is set to 24 to 35 hours.

【００２４】本発明の好ましい複層透水性舗装ブロック
の製造方法では、得られる複層舗装ブロックのバルク層
は嵩比重が１．５０以下であり、その曲げ強度は５０ｋ
ｇ／ｃｍ2以上である。嵩比重が小さく軽量な複層舗装
ブロックはその現場への輸送費用が少なくてすみ、重作
業である道路への施工作業が軽減されるという長所があ
る。また、曲げ強度が５０ｋｇ／ｃｍ2以上と大きい複
層舗装ブロックを使用すれば、舗装道路は破損しにくく
耐久性に優れる。In the preferred method for producing a multilayer permeable pavement block according to the present invention, the bulk layer of the obtained multilayer pavement block has a bulk specific gravity of 1.50 or less and a bending strength of 50 k.
g / cm 2 or more. Lightweight multi-layer pavement blocks with a low bulk specific gravity have the advantage that the transportation cost to the site can be reduced and the heavy work of road construction can be reduced. Further, if a multi-layer pavement block having a bending strength as large as 50 kg / cm 2 or more is used, the pavement road is less likely to be damaged and has excellent durability.

【００２５】本発明の他の好ましい複層透水性舗装ブロ
ックの製造方法は、多孔質骨材Ａの平均粒径を１．５〜
３ｍｍに調整したものをバルク層の骨材に使用する。こ
れによって良好な透水性と実用的に十分な強度を備えた
複層舗装ブロックが得られる。According to another preferred method for producing a multilayer water-permeable pavement block of the present invention, the average particle diameter of the porous aggregate A is 1.5 to 1.5.
The material adjusted to 3 mm is used for the aggregate of the bulk layer. As a result, a multilayer pavement block having good water permeability and practically sufficient strength can be obtained.

【００２６】本発明の他の好ましい複層透水性舗装ブロ
ックの製造方法は、混合粉体Ｆ中の混合骨材Ｄの１００
重量部と混合粉体Ｈ中の混合骨材Ｇの１００重量部に対
してそれぞれ４重量部以下の水ガラスを混合する。水ガ
ラスを混合粉体Ｆと混合粉体Ｈに混合すると、プレス成
形された状態の複層舗装ブロックの生強度が向上してそ
のハンドリングが容易となり、複層舗装ブロックの強度
とその製品歩留が向上するからである。しかし、あまり
多く混合しても効果が小さいので４重量部以下とするの
が好ましい。Another preferred method for producing a multilayer permeable pavement block according to the present invention is a method for producing a mixed aggregate D
4 parts by weight or less of water glass is mixed with 100 parts by weight of the mixed aggregate G in the mixed powder H and 100 parts by weight of the mixed glass. When water glass is mixed with the mixed powder F and the mixed powder H, the green strength of the multilayer pavement block in a pressed state is improved and its handling is facilitated, and the strength of the multilayer pavement block and the product yield thereof are improved. Is improved. However, since the effect is small even if mixing too much, the content is preferably 4 parts by weight or less.

【００２７】本発明の他の好ましい複層透水性舗装ブロ
ックの製造方法は、混合粉体Ｈ１００重量部に対して
０．３〜３．０重量部の顔料を混合する。その理由は混
合量が０．３重量部より少ないと複層舗装ブロックの着
色効果がほとんど得られず、３．０重量部より多く入れ
ても顔料を混合するコストに見合う付加価値を得られな
いからである。プレス型の空間に充填する混合粉体Ｆと
混合粉体Ｈは、その順序を変えて混合粉体Ｈを先に充填
しても得られる効果に変わりがない。According to another preferred method for producing a multilayer water-permeable pavement block of the present invention, 0.3 to 3.0 parts by weight of a pigment is mixed with 100 parts by weight of the mixed powder H. The reason is that if the mixing amount is less than 0.3 parts by weight, the coloring effect of the multilayer pavement block is hardly obtained, and if the mixing amount is more than 3.0 parts by weight, the added value corresponding to the cost of mixing the pigment cannot be obtained. Because. Even if the mixed powder F and the mixed powder H to be filled into the space of the press die are changed in order, and the mixed powder H is filled first, the effect obtained is not changed.

【００２８】[0028]

【実施例】以下、本発明を実施例によって具体的に説明
するが、本発明はこれらの実施例に限定されない。EXAMPLES Hereinafter, the present invention will be described specifically with reference to examples, but the present invention is not limited to these examples.

【００２９】［実施例１］粒径０．６〜３．５ｍｍ、平
均粒径２．５ｍｍ、見掛け嵩比重１．３４の球状あるい
は楕球状に形成された多孔質骨材Ａ（前述の独立気泡の
多いスラジライト）６５重量％、磁器タイルを破砕した
粒径３ｍｍ以下で平均粒径２．４ｍｍの骨材Ｂ２０重量
％、粒径３ｍｍ以下、平均粒径２．０ｍｍの風化花崗岩
から採取した長石の骨材Ｃ１５重量％からなる混合骨材
Ｄ１００重量部に対して、２００μｍ以下の水簸粘土５
５重量％、廃ガラスびんを２００μｍ以下に粉砕したガ
ラス粉末４０重量％、ＪＩＳ３号の水ガラス（液状水ガ
ラスの乾量換算）５重量％からなる結合部となる混合物
Ｅを１０重量部混合してバルク層を形成する混合粉体Ｆ
とした。Example 1 A porous or oval-shaped porous aggregate A having a particle diameter of 0.6 to 3.5 mm, an average particle diameter of 2.5 mm and an apparent bulk specific gravity of 1.34 (the closed cell described above) Of feldspar collected from weathered granite having a particle size of 3 mm or less and an average particle size of 2.4 mm B20 wt%, a particle size of 3 mm or less and an average particle size of 2.0 mm Elutriated clay 5 of 200 μm or less is used for 100 parts by weight of the mixed aggregate D comprising 15% by weight of the aggregate C.
10 parts by weight of a mixture E serving as a bonding portion composed of 5% by weight, 40% by weight of glass powder obtained by grinding a waste glass bottle to 200 μm or less, and 5% by weight of JIS No. 3 water glass (in terms of dry weight of liquid water glass). Powder F forming bulk layer by heating
And

【００３０】骨材Ｂ９０重量％と多孔質骨材Ａ１０重量
％からなる混合骨材Ｇ１００重量部に対して水簸粘土５
５重量％、ガラスびんを粉砕したガラス粉末４０重量
％、ＪＩＳ３号水ガラス（液状水ガラスの乾量換算）５
重量％からなる結合部となる混合物Ｅを１０重量部混合
して表面層を形成する混合粉体Ｈとした。The elutriated clay 5 was added to 100 parts by weight of the mixed aggregate G comprising 90% by weight of the aggregate B and 10% by weight of the porous aggregate A.
5% by weight, 40% by weight of glass powder obtained by pulverizing a glass bottle, JIS No. 3 water glass (in terms of dry weight of liquid water glass) 5
10 parts by weight of a mixture E as a bonding portion consisting of 10% by weight was mixed to obtain a mixed powder H forming a surface layer.

【００３１】並型煉瓦（寸法１１５ｍｍ×２３０ｍｍ×
厚さ６５ｍｍ）を成形するプレス型を使用し、深さ約１
００ｍｍのプレス型の成形空間に複層舗装ブロック原料
の混合粉体Ｆを充填し、次いで下駒（プレスの下側の押
し台）を約１０ｍｍ降下させてできたプレス型の上部空
間に混合粉体Ｈを充填した。両粉体原料を充填したプレ
スに１８０ｋｇ／ｃｍ2の圧力を印加し、脱型して成形
体上部の約５ｍｍが表面層からなる複層舗装ブロックを
プレス成形した。この複層舗装ブロックの生成形体を８
０℃で約４時間乾燥後焼成炉に入れ、７３℃／時間の昇
温速度で１０５０℃まで昇温し、この焼成温度に約６時
間保持し、次いで放冷した。焼成に要した時間は冷却時
間を含めて合計２７時間であった。この乾燥収縮と焼成
収縮を合わせた複層舗装ブロックの収縮率は約２％であ
った。Normal bricks (size 115 mm × 230 mm ×
Use a press mold to form a sheet with a thickness of
The mixed powder F of the multilayer pavement block raw material is filled in the molding space of the 00 mm press die, and then the lower piece (the lower press table of the press) is lowered by about 10 mm to the upper space of the press die formed. Body H was filled. A pressure of 180 kg / cm 2 was applied to a press filled with both powder raw materials, and the molded product was demolded to press-mold a multilayer pavement block having a surface layer of about 5 mm above the molded body. The formation form of this multilayer pavement block is 8
After drying at 0 ° C. for about 4 hours, it was placed in a baking furnace, heated to 1050 ° C. at a rate of 73 ° C./hour, kept at this baking temperature for about 6 hours, and then allowed to cool. The time required for firing was 27 hours in total including the cooling time. The shrinkage ratio of the multilayer pavement block obtained by combining the drying shrinkage and the firing shrinkage was about 2%.

【００３２】得られた複層舗装ブロックは表面層が白
色、バルク層が赤茶色であった。得られた複層舗装ブロ
ックについて物性測定を行なった。この複層舗装ブロッ
クは嵩比重１．４３、見掛け気孔率２１％、透水係数
１．５×１０-2／ｓｅｃであり、ブロックのバルク層は
嵩比重１．３６、曲げ強度５１ｋｇ／ｃｍ2、圧縮強度
１８０ｋｇ／ｃｍ2であった。物性測定は、嵩比重と見
掛け気孔率は水浸法で測定し、透水性はインターロッキ
ングブロック舗装設計施工要領に規定された透水性試験
法である水頭差法によって測定し、曲げ強度はインター
ロッキングブロック舗装設計施工要領に規定された中央
集中載荷法によって測定し、圧縮強度はＪＩＳ−Ａ−１
１０８に準拠した方法で測定した。また、表面層とバル
ク層の境界の接合強度は建設省建築工事共通仕様書の接
着強さに準ずる試験法に準拠した方法で調べた結果、層
間における破壊が見られず、実用的に十分大きい接合強
度を有することが分かった。The obtained multilayer pavement block had a white surface layer and a reddish brown bulk layer. Physical properties of the obtained multilayer pavement block were measured. This multilayer pavement block has a bulk specific gravity of 1.43, an apparent porosity of 21%, and a water permeability of 1.5 × 10 -2 / sec. The bulk layer of the block has a bulk specific gravity of 1.36, a bending strength of 51 kg / cm 2 , The compression strength was 180 kg / cm 2 . The physical properties were measured by measuring the bulk density and apparent porosity by the water immersion method, and measuring the water permeability by the head difference method, which is the water permeability test method specified in the Interlocking Block Pavement Design and Construction Procedure, and the bending strength was measured by the interlocking method. Measured by the centralized loading method specified in the block pavement design and construction procedure, and the compressive strength is JIS-A-1
It measured by the method based on No.108. In addition, the joint strength at the boundary between the surface layer and the bulk layer was examined by a method in accordance with the test method according to the adhesion strength of the Ministry of Construction's Common Specifications for Construction Work. It was found to have joint strength.

【００３３】［実施例２］実施例１において、表面層を
形成する混合粉体Ｈ１００重量部に対して平均粒径約４
０μｍの青色顔料（Ａｌ2Ｏ3６５重量％、ＺｎＯ２０重
量％、ＣｏＯ１５重量％からなる混合物）を１重量部混
合し、他は実施例１と同様にして複層舗装ブロックを試
作した。得られた複層舗装ブロックは表面層の色が青色
となった。得られた複層舗装ブロックの物性を実施例１
と同じ方法で測定したところ、この複層舗装ブロックの
物性はブロックのバルク層の物性を含め実施例１の複層
舗装ブロックの物性とほとんど同じであった。Example 2 In Example 1, an average particle size of about 4 parts by weight based on 100 parts by weight of the mixed powder H forming the surface layer was used.
One part by weight of a 0 μm blue pigment (a mixture composed of 65% by weight of Al 2 O 3 , 20% by weight of ZnO, and 15% by weight of CoO) was mixed, and the procedure of Example 1 was repeated to prepare a multilayer pavement block. The color of the surface layer of the obtained multilayer pavement block was blue. The physical properties of the obtained multilayer pavement block were measured in Example 1.
The physical properties of this multilayer pavement block were almost the same as the physical properties of the multilayer pavement block of Example 1, including the physical properties of the bulk layer of the block, as measured by the same method as in Example 1.

【００３４】［実施例３］実施例２において、表面層の
混合粉体Ｈの骨材に前記多孔質骨材Ａを使用せず、代わ
りに同重量の前記長石の骨材Ｃを使用し、他は実施例２
と同様にして複層舗装ブロックを試作した。得られた複
層舗装ブロックは表面層の色がより鮮明な青色となっ
た。この複層舗装ブロックの物性を測定したところ、ブ
ロックは嵩比重が１．４７、見掛け気孔率が２０％、透
水係数が２．２×１０-2／ｓｅｃ、ブロックのバルク層
は嵩比重が１．３６、曲げ強度が５１ｋｇ／ｃｍ2、圧
縮強度が１８０ｋｇ／ｃｍ2であった。[Example 3] In Example 2, the porous aggregate A was not used as the aggregate of the mixed powder H in the surface layer, but the feldspar aggregate C having the same weight was used instead. Others are Example 2.
A multi-layer pavement block was prototyped in the same manner as described above. The color of the surface layer of the obtained multilayer pavement block became clearer blue. When the physical properties of this multilayer pavement block were measured, the block had a bulk specific gravity of 1.47, an apparent porosity of 20%, a water permeability of 2.2 × 10 -2 / sec, and the bulk layer of the block had a bulk specific gravity of 1 .36, the bending strength was 51 kg / cm 2 , and the compression strength was 180 kg / cm 2 .

【００３５】［比較例１］実施例１において、混合粉体
Ｆと混合粉体Ｈに混合する混合物Ｅに粘土を使用せず、
代わりに同重量のガラス粉末を増量して混合し、他は実
施例１と同様にして複層舗装ブロックを試作した。実施
例１と比べて比較例１の複層舗装ブロックで変わった点
は、乾燥と焼成による収縮率が約１％となり、表面層の
色が淡緑色、バルク層の色が濃い茶色となった点であ
る。この複層舗装舗装ブロックついて物性を測定したと
ころ、ブロックの嵩比重が１．４３、透水係数が２．４
×１０-2／ｓｅｃであり、見掛け気孔率が２２％、ブロ
ックのバルク層は嵩比重が１．３７、曲げ強度が４０ｋ
ｇ／ｃｍ2、圧縮強度が１７０ｋｇ／ｃｍ2であった。Comparative Example 1 In Example 1, the mixture E was mixed with the mixed powder F and the mixed powder H without using clay.
Instead, the same weight of glass powder was increased and mixed, and the other steps were the same as in Example 1 to produce a multilayer pavement block. What changed in the multilayer pavement block of Comparative Example 1 as compared with Example 1 was that the shrinkage by drying and firing was about 1%, the color of the surface layer was light green, and the color of the bulk layer was dark brown. Is a point. When the physical properties of this multilayer pavement pavement block were measured, the bulk specific gravity of the block was 1.43 and the water permeability was 2.4.
× 10 -2 / sec, apparent porosity is 22%, bulk density of the block bulk layer is 1.37, and flexural strength is 40k.
g / cm 2 , and the compressive strength was 170 kg / cm 2 .

【００３６】［比較例２］実施例１において、バルク層
と表面層の骨材に前記多孔質骨材Ａを使用せず、代わり
に同じ焼却炉灰を溶融後破砕して０．６〜３．５ｍｍの
粒径と２．５ｍｍの平均粒径を有するように粒度調整し
た骨材（嵩比重２．０）を使用し、他は実施例１と同様
にして複層舗装ブロックを試作した。得られた複層舗装
ブロックの色は表面層が白色であり、バルク層が赤茶色
であった。この複層舗装ブロックについて物性を測定し
たところ、ブロックは嵩比重が１．７、見掛け気孔率が
１８％、透水係数が１．５×１０-2／ｓｅｃ、ブロック
のバルク層は嵩比重が１．７、曲げ強度が５５ｋｇ／ｃ
ｍ2、圧縮強度が１８０ｋｇ／ｃｍ2であった。[Comparative Example 2] In Example 1, the same incinerator ash was melted and crushed after the same incinerator ash was melted instead of using the porous aggregate A as the aggregate of the bulk layer and the surface layer. A multilayer pavement block was trial-produced in the same manner as in Example 1 except that an aggregate (bulk specific gravity: 2.0) whose particle size was adjusted to have a particle size of 0.5 mm and an average particle size of 2.5 mm was used. The color of the obtained multilayer pavement block was such that the surface layer was white and the bulk layer was reddish brown. When the physical properties of this multilayer pavement block were measured, the block had a bulk specific gravity of 1.7, an apparent porosity of 18%, a water permeability of 1.5 × 10 -2 / sec, and a bulk layer of the block having a bulk specific gravity of 1 0.7, bending strength 55 kg / c
m 2 , and the compressive strength was 180 kg / cm 2 .

【００３７】[0037]

【発明の効果】上述の実施例の結果から分かるように、
本発明の複層透水性舗装ブロックは独立気泡を多く含む
多孔質骨材Ａを使用していることによって嵩比重が小さ
く軽量であり、良好な透水性を有すると共に、結合部に
粘土とガラス粉末及び／又は水ガラスを配合したものを
使用することによって結合強度が大きく、軽量であって
も実用的に十分大きな強度が得られている。強度が大き
ければブロックの厚さをさらに薄くしてブロックをさら
に軽量化でき、ブロックが軽量であることによって複層
舗装ブロックの搬送費用が安く、かつその施工性が良好
であり、実用的に十分な強度と耐摩耗性を有し、美観を
備えた不可価値の高い複層透水性舗装ブロックを提供で
きる。従って、本発明の製造方法によれば、焼却炉灰を
有効使用した付加価値の高い複層透水性舗装ブロックを
提供でき、併せて都市ゴミ、ひいては焼却炉灰の処理費
用を顕著に節減できる。As can be seen from the results of the above embodiment,
The multi-layer water-permeable pavement block of the present invention has a low bulk specific gravity and light weight by using the porous aggregate A containing a large number of closed cells, has good water permeability, and has clay and glass powder at the joint. And / or by using a mixture of water glass, the bonding strength is large, and even if it is lightweight, sufficiently large strength is obtained practically. If the strength is large, the thickness of the block can be further reduced to further reduce the weight of the block, and because the block is lightweight, the transportation cost of the multilayer pavement block is low, and its workability is good, and it is practically sufficient It is possible to provide an invaluable multi-layer water-permeable pavement block having excellent strength and abrasion resistance and aesthetic appearance. Therefore, according to the production method of the present invention, it is possible to provide a high value-added multi-layer permeable pavement block in which incinerator ash is effectively used, and to remarkably reduce the cost of treating municipal garbage and eventually incinerator ash.

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｅ０１Ｃ 5/22 Ｃ０４Ｂ 35/00 １０９ (72)発明者 長谷川 正敏 東京都渋谷区代々木１丁目21番８号 日本 釉色煉瓦工業株式会社内 (72)発明者 木村 尚武 東京都千代田区大手町二丁目６番２号 東 京都下水道サービス株式会社内 (72)発明者 田辺 直 東京都千代田区大手町二丁目６番２号 東 京都下水道サービス株式会社内──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 6 Identification number Agency reference number FI Technical indication E01C 5/22 C04B 35/00 109 (72) Inventor Masatoshi Hasegawa 1-21 Yoyogi, Shibuya-ku, Tokyo No. 8 Japan Glaze Brick Industry Co., Ltd. (72) Inventor Naotake Kimura 2-6-2 Otemachi, Chiyoda-ku, Tokyo Tokyo Metropolitan Sewer Service Co., Ltd. (72) Inventor Nao Tanabe 2-chome Otemachi, Chiyoda-ku, Tokyo 6-2 Tokyo Metropolitan Sewerage Service Co., Ltd.

Claims (6)

【特許請求の範囲】[Claims] 【請求項１】焼却炉灰を造粒して焼成した粒径０．６ｍ
ｍ以上で平均見掛け比重が１．４５以下の独立気泡を有
する多孔質骨材Ａ６０重量部以上に、磁器を砕いた骨材
Ｂ及び／又は長石を砕いた骨材Ｃを合量で４０重量部以
下混合した混合骨材Ｄ１００重量部に対し、結合部とな
る粘土とガラス粉末及び／又は水ガラスを含む混合物Ｅ
を合量で６〜２０重量部加えたバルク層を形成する混合
粉体Ｆをプレス型に充填してプレス型の容積の過半を充
填し、プレス型の容積の残部を、磁器を砕いた骨材Ｂ及
び／又は長石を砕いた骨材Ｃを合量で８０重量％以上含
む混合骨材Ｇ１００重量部に対し、結合部となる粘土と
ガラス粉末及び／又は水ガラスを含む混合物Ｅを合量で
６〜２０重量部加えた表面層を形成する混合粉体Ｈで充
填し、バルク層と表面層を一体にプレス成形し、次いで
焼成することを特徴とする複層透水性舗装ブロックの製
造方法。1. A particle diameter of 0.6 m obtained by granulating and burning incinerator ash.
A total of 40 parts by weight of aggregate B obtained by crushing porcelain and / or aggregate C obtained by crushing feldspar is added to at least 60 parts by weight of porous aggregate A having closed cells having an average apparent specific gravity of 1.45 or less at m or more. A mixture E containing clay and glass powder and / or water glass as a bonding portion was mixed with 100 parts by weight of the mixed aggregate D mixed below.
And a mixed powder F that forms a bulk layer by adding 6 to 20 parts by weight of the mixture to a press mold to fill the majority of the volume of the press mold. Mixture E containing clay and glass powder and / or water glass, which are to be joined, is mixed with 100 parts by weight of mixed aggregate G containing at least 80% by weight of aggregate B and / or aggregate C obtained by crushing feldspar. And filling the mixture with a mixed powder H forming a surface layer added by 6 to 20 parts by weight, press-molding the bulk layer and the surface layer integrally, and then firing. . 【請求項２】焼成された複層透水性舗装ブロックのバル
ク層の嵩比重が１．５０以下、曲げ強度が５０ｋｇ／ｃ
ｍ2以上である請求項１に記載の複層透水性舗装ブロッ
クの製造方法。2. A fired multilayer permeable pavement block having a bulk specific gravity of 1.50 or less and a bending strength of 50 kg / c.
method for producing a multilayer porous pavement blocks according to claim 1 m 2 or more. 【請求項３】多孔質骨材Ａの平均粒径を１．５〜３ｍｍ
に調整したものをバルク層の骨材に使用する請求項１又
は２に記載の複層透水性舗装ブロックの製造方法。3. The porous aggregate A has an average particle size of 1.5 to 3 mm.
The method for producing a multilayer permeable pavement block according to claim 1 or 2, wherein the material adjusted to (1) is used as an aggregate of a bulk layer. 【請求項４】混合粉体Ｆ中の混合骨材Ｄの１００重量部
と混合粉体Ｈ中の混合骨材Ｇの１００重量部に対して、
それぞれ４重量部以下の水ガラスを混合する請求項１〜
３のいずれかに記載の複層透水性舗装ブロックの製造方
法。4. With respect to 100 parts by weight of the mixed aggregate D in the mixed powder F and 100 parts by weight of the mixed aggregate G in the mixed powder H,
Each of 4 to 5 parts by weight or less of water glass is mixed.
3. The method for producing a multilayer permeable pavement block according to any one of the above items 3. 【請求項５】混合粉体Ｈ１００重量部に対して０．３〜
３．０重量部の顔料を混合する請求項１〜４のいずれか
に記載の複層透水性舗装ブロックの製造方法。5. 0.3 to 100 parts by weight of the mixed powder H
The method for producing a multilayer water-permeable pavement block according to any one of claims 1 to 4, wherein 3.0 parts by weight of a pigment is mixed. 【請求項６】焼成を１０３０〜１１００℃で３時間以上
行なう請求項１〜５のいずれかに記載の複層透水性舗装
ブロックの製造方法。6. The method for producing a multilayer permeable pavement block according to claim 1, wherein the calcination is performed at 1030 to 1100 ° C. for 3 hours or more.
JP24114896A 1996-08-22 1996-08-22 Production of double-layer water-permeable paving block Withdrawn JPH1067579A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24114896A JPH1067579A (en) 1996-08-22 1996-08-22 Production of double-layer water-permeable paving block

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24114896A JPH1067579A (en) 1996-08-22 1996-08-22 Production of double-layer water-permeable paving block

Publications (1)

Publication Number Publication Date
JPH1067579A true JPH1067579A (en) 1998-03-10

Family

ID=17069988

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24114896A Withdrawn JPH1067579A (en) 1996-08-22 1996-08-22 Production of double-layer water-permeable paving block

Country Status (1)

Country Link
JP (1) JPH1067579A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109485311A (en) * 2018-11-08 2019-03-19 蒋息娟 Plant ecological permeable stone and its application and production method
IT201800004787A1 (en) * 2018-04-23 2019-10-23 ARTICLES IN PORCELAIN STONEWARE

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201800004787A1 (en) * 2018-04-23 2019-10-23 ARTICLES IN PORCELAIN STONEWARE
WO2019207432A1 (en) * 2018-04-23 2019-10-31 Saxa Grestone S.P.A. Porcelain stoneware products
CN109485311A (en) * 2018-11-08 2019-03-19 蒋息娟 Plant ecological permeable stone and its application and production method

Similar Documents

Publication Publication Date Title
KR101214596B1 (en) Permeable concrete composition using cement and geopolymer binder, and bottom ash aggregate and making method of the same
WO1990007474A1 (en) Method of producing ceramic products using sludge of sewage treatment
KR101518443B1 (en) Compositions of pervious concrete products by using the aggregates from industrial wastes and method for the same
CN118003432A (en) Method for preparing landscaping product
US20100034585A1 (en) Porous Ceramic Paving Material
JP2005060159A (en) Water retentive and water-permeable ceramic block obtained by utilizing inorganic waste material, and producing method therefor
CN107324837B (en) It is a kind of to be retained permeable drainage paving slab brick and preparation method thereof
CN107793131A (en) A kind of environment-friendly ceramic water-permeable brick and its manufacture method
US5008053A (en) Process for producing a ceramic product using sludge ashes
JP3446409B2 (en) Method for producing water-permeable ceramic block
CN113754461B (en) Composite construction recycled aggregate sintering brick that permeates water
JPH1067579A (en) Production of double-layer water-permeable paving block
JP2002187784A (en) Porous ceramics, method of manufacturing the same, paving material, roof laying material, external wall material and plant growth container material comprising the same
JP4041859B2 (en) Water-permeable / water-retaining ceramic block and manufacturing method thereof
JPH10204809A (en) Production of sintered body and water-permeable sintered body
JP2001342055A (en) Water-pervious ceramic block and its production method
JP2896300B2 (en) Porcelain pavement material and its manufacturing method
JP3707270B2 (en) Water-permeable ceramic block and manufacturing method thereof
JP2003020265A (en) Method for producing multicolored brick
KR20020066459A (en) The block with a through hole using scraped ceramics and manufacturing method therof
JPS62171972A (en) Water permeable floor material
KR20110012586A (en) High strength water-permeable block and manufacturing method thereof
KR0131052B1 (en) Paving for roads
JPH1095658A (en) Production of ceramic material and ceramic tiles by effectively recycling garbage incineration molten-ash slag
JPH1036152A (en) Artificial aggregate and its production

Legal Events

Date Code Title Description
A300 Application deemed to be withdrawn because no request for examination was validly filed

Free format text: JAPANESE INTERMEDIATE CODE: A300

Effective date: 20031104