JPH11236256A - Solidifying material for roadbed material and roadbed material using the same - Google Patents

Solidifying material for roadbed material and roadbed material using the same

Info

Publication number
JPH11236256A
JPH11236256A JP6042798A JP6042798A JPH11236256A JP H11236256 A JPH11236256 A JP H11236256A JP 6042798 A JP6042798 A JP 6042798A JP 6042798 A JP6042798 A JP 6042798A JP H11236256 A JPH11236256 A JP H11236256A
Authority
JP
Japan
Prior art keywords
roadbed
mixture
solidifying
gypsum
pts
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.)
Pending
Application number
JP6042798A
Other languages
Japanese (ja)
Inventor
Tadashi Sueoka
忠士 末岡
Satoru Fujii
悟 藤井
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.)
Taiheiyo Cement Corp
Original Assignee
Taiheiyo Cement Corp
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 Taiheiyo Cement Corp filed Critical Taiheiyo Cement Corp
Priority to JP6042798A priority Critical patent/JPH11236256A/en
Publication of JPH11236256A publication Critical patent/JPH11236256A/en
Pending legal-status Critical Current

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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
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/021—Ash cements, e.g. fly ash cements ; Cements based on incineration residues, e.g. alkali-activated slags from waste incineration ; Kiln dust cements
    • 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Road Paving Structures (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide the subject solidifying material capable of improving the quick-hardening properties of a roadbed material and also providing the roadbed material with high strength at an earlier stage without requiring any large-scale or complex equipment by using a hydraulic material which consists of gypsum and a fired material having a specified composition and has a Blaine specific surface area of >= a specified value, as this solidifying material. SOLUTION: As this solidifying material, a powdery hydraulic material consisting of gypsum and a fired material which is produced with at least one of municipal waste incineration ash and sewage sludge incineration ash as the raw material and contains 10 to 40 wt.% of at least one of 11CaO.7Al2 O3 .CaCl2 , 11CaO.7Al2 O3 .CaF2 and 3CaO.Al2 O3 and also contains at least one of 2CaO.SiO2 and 3CaO.SiO2 , is used. Preferably, the production of the powdery hydraulic material comprises: adding 1 to 30 pts.wt. of gypsum to 100 pts.wt. of the fired material and mixing them together to obtain a mixture; and grinding the mixture so that the ground powdery mixture has a Blaine specific surface area of >=3,000 cm<2> to produce the powdery hydraulic material to be used as the objective solidifying material. The production of this roadbed material comprises: adding this solidifying material, together with water, to a roadbed raw material to obtain a mixture; and kneading the mixture to harden it by hydration; wherein the amount of the solidifying material to be added to the roadbed raw material is preferably 5 to 30 pts.wt. based on 100 pts.wt. of the roadbed raw material.

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、都市ゴミ焼却灰、
下水汚泥焼却灰などの廃棄物焼却灰を原料源とする路盤
材用固化材およびこれを用いた路盤材に関する。TECHNICAL FIELD The present invention relates to municipal waste incineration ash,
The present invention relates to a solidification material for roadbed materials using waste incineration ash such as sewage sludge incineration ash as a raw material, and a roadbed material using the same.

【０００２】[0002]

【従来の技術】火力発電所及びゴミ焼却炉から発生する
燃焼灰などの微粉物質を主原料とする人工の路盤材製造
に用いられる固化材は、安価な普通セメントが主に用い
られており、これを路盤材原料に水と共に加えることに
より硬化させ路盤材として用いている。このようにして
製造された路盤材は、製造直後の強度発現性が弱く、路
盤として十分耐えうる強度を得るためには製造物の水和
硬化物を長期の養生或いは、加温による促進養生を必要
とした。2. Description of the Related Art Inexpensive ordinary cement is mainly used as a solidifying material used in the production of artificial roadbed materials using fine powder substances such as combustion ash generated from thermal power plants and refuse incinerators as main raw materials. This is hardened by being added to water for a roadbed material together with water and used as a roadbed material. The roadbed material produced in this way has a low strength expression immediately after production, and in order to obtain sufficient strength to withstand as a roadbed, the hydrated cured product of the product must be cured for a long time or accelerated curing by heating. Needed.

【０００３】一般に養生では、長期間に渡って養生場所
を確保する必要があり、屋内の広大な養生ヤードを必要
とすることが多い。また、加温することによりこのよう
な養生期間を短縮することもできるが、加温による養生
促進には加温設備が必要となることから、多額の設備コ
ストを要する。一方、製造後の強度発現が速い早強性固
化材を用いる事によって、養生ヤードの小規模化あるい
は加温設備の小型化あるいは不要化も可能であるもの
の、該固化材は普通セメント系固化材と比較するとかな
り割高であり、必然的に製造コストの上昇をきたす為、
大量の使用には至っていない。In general, in curing, it is necessary to secure a curing place for a long period of time, and a large indoor curing yard is often required. Further, such a curing period can be shortened by heating, but a large amount of equipment cost is required since heating equipment is required to promote the curing by heating. On the other hand, by using an early-strength solidifying material that has a high strength after production, it is possible to reduce the size of the curing yard or downsize or eliminate the need for heating equipment, but the solidifying material is usually a cement-based solidifying material. It is considerably expensive compared to, and inevitably increases the manufacturing cost,
It has not been used in large quantities.

【０００４】[0004]

【発明が解決しようとする課題】本発明は、路盤材を製
造する上で広大な養生ヤードや加温設備を不要とし、速
硬性であって早期に高強度を発現させることができる比
較的安価な路盤材用固化材およびこれを用いた路盤材を
提供することを目的とする。SUMMARY OF THE INVENTION The present invention does not require a large curing yard or a heating facility in manufacturing a roadbed material, and is relatively inexpensive because it is fast-curing and can quickly develop high strength. It is an object of the present invention to provide a solidified material for a roadbed material and a roadbed material using the same.

【０００５】[0005]

【課題を解決するための手段】著しく増加している都市
ゴミや下水汚泥等の廃棄物処理策として、その有効利
用、特に再資源化が各方面で試みられている。このよう
な再資源化策の特筆すべき例として、都市ゴミ焼却灰や
下水汚泥焼却灰等の一般廃棄物を原料とし水硬性成分を
析出させた焼成物に石膏等を加えた水硬性組成物である
いわゆるエコセメントが知られている。本発明者らは、
該エコセメントが前記廃棄物を原料するため比較的安価
であり、また速硬性で早期強度の発現が極めて優れてい
ることなどの点に着目し、これを路盤材用の固化材とし
て適用したところ、速やかに硬化し、養生期間が殆どい
らず、また養生促進の為の加温設備等も要することな
く、優れた早期強度発現性を有する路盤材が容易に得ら
れることを見いだし本発明を完成させた。Means for Solving the Problems As effective measures for treating waste such as municipal garbage and sewage sludge, which have been increasing remarkably, effective use, especially recycling, has been attempted in various fields. A remarkable example of such a recycling measure is a hydraulic composition obtained by adding gypsum to a calcined product obtained by precipitating hydraulic components from general waste such as municipal waste incineration ash or sewage sludge incineration ash. So-called ecocement is known. We have:
Paying attention to the fact that the eco-cement is relatively inexpensive because the waste material is used as the raw material, and that the quick-hardening property and the early strength are extremely excellent, it was applied as a solidifying material for roadbed materials. Completed the present invention by finding that a roadbed material having excellent early strength development can be easily obtained without hardening quickly, hardly requiring a curing period, and without requiring any heating equipment for promoting curing. I let it.

【０００６】即ち、本発明は以下の（１）に記した路盤
材用固化材、および該路盤材用固化材を用いてなる
（２）〜（３）に記した路盤材である。 （１）都市ゴミ焼却灰、下水汚泥焼却灰の一種以上を原
料としてなる焼成物であって、Ｃ11Ａ7ＣａＣｌ2、Ｃ11
Ａ7ＣａＦ2、Ｃ3Ａの一種以上を１０〜４０重量％及び
Ｃ2Ｓ、Ｃ3Ｓの一種以上を含む焼成物と石膏からなるブ
レーン比表面積３０００ｃｍ2／ｇ以上の水硬性材料で
あることを特徴とする路盤材用固化材。（２）路盤材原
料１００重量部に、前記（１）の路盤材用固化材５〜３
０重量部と水を加えてなることを特徴とする路盤材。
（３）路盤材原料が石炭灰を主成分とすることを特徴と
する前記（２）の路盤材。That is, the present invention provides a solidified material for a roadbed material described in the following (1) and a roadbed material described in (2) to (3) using the solidified material for a roadbed material. (1) municipal refuse incineration ash, the one or more kinds of sewage sludge incineration ash to a baked product made as starting material, C 11 A 7 CaCl 2, C 11
A hydraulic material having a Blaine specific surface area of 3000 cm 2 / g or more, which is made of a calcined product containing 10 to 40% by weight of at least one of A 7 CaF 2 and C 3 A and at least one of C 2 S and C 3 S and gypsum. A solidified material for roadbed materials, characterized in that: (2) 100 parts by weight of the material for the roadbed material, 5 to 3 solidified materials for the roadbed material of the above (1)
A roadbed material characterized by adding 0 parts by weight and water.
(3) The roadbed material according to (2), wherein the roadbed material is mainly composed of coal ash.

【０００７】[0007]

【発明の実施形態】本発明の路盤材用固化材を構成する
水硬性材料であるエコセメントは、都市ゴミ焼却灰，下
水汚泥焼却灰の一種類以上を原料としてなる焼成物であ
って、Ｃ11Ａ7ＣａＣｌ2、Ｃ11Ａ7ＣａＦ2、Ｃ3Ａの一
種以上を１０〜４０重量％及びＣ2Ｓ、Ｃ3Ｓの一種以上
を含む焼成物と石膏からなる水和硬化性の組成物であ
る。なお、ここで使用する原料は、貝殻や下水汚泥に生
石灰を混合した下水汚泥乾粉、その他の一般廃棄物や産
業廃棄物、更には一般的なセメント原料である石灰石、
粘土、珪石、アルミ灰、ボーキサイト、鉄等と混合して
成分調整した原料であっても良い。即ち、係る原料を１
２００〜１５００℃で焼成して得たクリンカーを粉砕
後、この焼成物に石膏を添加混合してなる粉体状の水硬
性組成物である。BEST MODE FOR CARRYING OUT THE INVENTION Eco-cement, which is a hydraulic material constituting the solidified material for roadbed material of the present invention, is a fired product made from at least one kind of municipal waste incineration ash and sewage sludge incineration ash. 11 a 7 CaCl 2, C 11 a 7 CaF 2, C 3 one or more 10 to 40 wt% and C 2 S of a, C 3 composition of the burned material and hydrating curable consisting gypsum containing one or more S Things. The raw materials used here are sewage sludge dry powder obtained by mixing quicklime with shells and sewage sludge, other general waste and industrial waste, and limestone, which is a general cement raw material,
Raw materials whose components have been adjusted by mixing with clay, silica stone, aluminum ash, bauxite, iron or the like may be used. That is, the raw material is
A powdery hydraulic composition obtained by pulverizing clinker obtained by baking at 200 to 1500 ° C. and then adding and mixing gypsum to the baking product.

【０００８】前記焼成物中のアルミニウム源は焼却灰か
ら主に由来するので、Ｃ11Ａ7ＣａＣｌ2、Ｃ11Ａ7Ｃａ
Ｆ2、Ｃ3Ａ等のアルミニウム化合物の含有量が１０重量
％未満では、焼却灰の使用量が少なくなり、廃棄物の有
効利用及びコスト低減化を図る観点から好ましくない。
また、４０重量％を超えると水和の進行によって過大に
膨張する場合がある。また、焼成物に加える石膏は無水
石膏、二水石膏、半水石膏のいずれも使用でき、強度の
発現性から、焼成物１００重量部に対して石膏１〜３０
重量部添加混合するのが望ましい。[0008] Since the aluminum source in the fired product is mainly derived from incinerated ash, C 11 A 7 CaCl 2 , C 11 A 7 Ca
When the content of the aluminum compound such as F 2 and C 3 A is less than 10% by weight, the amount of incinerated ash is reduced, which is not preferable from the viewpoint of effective use of waste and cost reduction.
On the other hand, if it exceeds 40% by weight, it may expand excessively due to the progress of hydration. Further, as the gypsum added to the calcined product, any of anhydrous gypsum, gypsum dihydrate and gypsum hemihydrate can be used.
It is desirable to add and mix parts by weight.

【０００９】前記焼成物と石膏との混合物を、ブレーン
比表面積３０００ｃｍ2／ｇ以上に粉砕したものを、路
盤材用固化材とする。ブレーン比表面積が３０００ｃｍ
2／ｇ未満のものでは、路盤材原料及び水と混合混練り
した場合に、水硬性組成物粒子が大きい為、水和時間が
長くなり養生期間の短縮が困難になるとともに、固化物
の強度も小さく路盤材としての強度不足となるので好ま
しくない。The mixture of the calcined product and the gypsum is pulverized to a Blaine specific surface area of 3000 cm 2 / g or more to obtain a solidified material for roadbed material. Brain specific surface area is 3000cm
When the ratio is less than 2 / g, when the mixture is kneaded with the roadbed material and water, the hydraulic composition particles are large, so that the hydration time is prolonged, and the curing period is difficult to shorten. It is also not preferable because it is too small and the strength as a roadbed material is insufficient.

【００１０】また、本発明の路盤材は前記路盤材用固化
材を用いることによって路盤材原料を固化せしめたもの
であって、路盤材原料に該路盤材用固化材と水とを加
え、混連することにより水和反応が起こり硬化したもの
である。固化対象となる路盤材原料は特に限定されない
が、例えば石炭灰、流動床灰、ゴミ焼却灰などの飛散性
が著しく強い微粉であっても良い。前記路盤材用固化材
の路盤材原料への添加量は、路盤材原料１００重量部に
対し、５〜３０重量部とする。路盤材用固化材の添加量
が５重量部未満では強度が低いものとなり、早期強度発
現性も劣るため好ましくなく、また添加量が３０重量部
を越えてもそれ以上性状の向上は殆ど望めないので好ま
しくない。また、水の添加量は固形分の概ね１０〜３０
重量％とするのが望ましい。Further, the roadbed material of the present invention is obtained by solidifying a roadbed material by using the above-mentioned roadbed material solidifying material. The hydration reaction occurs due to the connection, and is cured. The material of the roadbed material to be solidified is not particularly limited, but may be fine powder having remarkably strong scattering properties such as coal ash, fluidized bed ash, and refuse incineration ash. The amount of the solidified material for roadbed material added to the roadbed material is 5 to 30 parts by weight based on 100 parts by weight of the roadbed material. If the added amount of the solidifying material for roadbed material is less than 5 parts by weight, the strength is low, and the early strength development is inferior, so that it is not preferable, and even if the added amount exceeds 30 parts by weight, further improvement in properties is hardly expected. It is not preferable. The amount of water to be added is approximately 10 to 30 of the solid content.
It is desirable that the content be% by weight.

【００１１】[0011]

【実施例】［実施例１］ 表１に示す成分からなる乾燥
した都市ゴミ焼却灰５４．３Ｋｇ、石灰石粉４２．５Ｋ
ｇ、アルミ灰１．１Ｋｇ、粘土１．１Ｋｇ、及び蛍石
０．５Ｋｇを原料として、セメント用ロータリーキルン
を用いて１３００〜１４５０℃で焼成し、クリンカーを
得た。なお、クリンカーの鉱物組成を表２に示す。得ら
れたクリンカーは、縦型ミルでブレーン比表面積約３０
００ｃｍ2／ｇになるよう一次粉砕し、この粉砕物約１
００Ｋｇに対して無水石膏を約１２Ｋｇ添加混合し、該
混合物を粉砕分級し比表面積約３５００ｃｍ2／ｇの水
硬性粉末を作製した。[Example 1] [Example 1] Dry municipal waste incineration ash composed of the components shown in Table 1 54.3Kg, limestone powder 42.5K
g, 1.1 kg of aluminum ash, 1.1 kg of clay, and 0.5 kg of fluorite were fired at 1300 to 1450 ° C. using a rotary kiln for cement to obtain clinker. Table 2 shows the mineral composition of clinker. The resulting clinker was subjected to a vertical mill to a Blaine specific surface area of about 30.
Primary pulverized so as to be 00 cm 2 / g.
About 12 kg of anhydrous gypsum was added to and mixed with 00 kg, and the mixture was pulverized and classified to prepare a hydraulic powder having a specific surface area of about 3500 cm 2 / g.

【００１２】[0012]

【表１】 [Table 1]

【００１３】[0013]

【表２】 [Table 2]

【００１４】このブレーン比表面積約３５００ｃｍ2／
ｇの水硬性粉末１０Ｋｇに、平均粒径約１８．３μｍの
石炭灰粉末９０Ｋｇを加えて混合して得た混合物１００
Ｋｇに、水を２０Ｋｇ添加し、これをパグミルで２０分
間調湿混練りした。この混練物をロール成形機にて８０
０ｋｇ／ｃｍ2の加圧力で成形することにより路盤材を
作製した。成形された路盤材は直ちにを粒度Ｍ−２５に
調整してロサンゼルスすり減り試験を行った結果、修正
ＣＢＲ値（Ｍｏｄｉｆｉｅｄ Ｃａｌｉｆｏｒｎｉａ
Ｂｅａｒｉｎｇ Ｒａｔｉｏ Ｔｅｓｔ）が１１８％と
なり、上層路盤材としての規格値（規定上は８０％以
上）内であった。This brane specific surface area is about 3500 cm 2 /
A mixture 100 obtained by adding and mixing 90 kg of coal ash powder having an average particle size of about 18.3 μm to 10 kg of hydraulic powder of 10 g.
20 kg of water was added to Kg, and the mixture was humidified and kneaded for 20 minutes using a pug mill. This kneaded material is rolled with a roll forming machine to 80
A roadbed material was produced by molding with a pressure of 0 kg / cm 2 . The molded roadbed material was immediately adjusted to a particle size of M-25 and subjected to a Los Angeles abrasion test. As a result, a modified CBR value (Modified California) was obtained.
The bearing ratio test (Bearing Ratio Test) was 118%, which was within the standard value (80% or more by definition) as the upper subbase material.

【００１５】［実施例２］ ブレーン比表面積を約２１
００ｃｍ2／ｇにした以外は実施例１と同様の水硬性粉
末１０重量％と、実施例１と同様の石炭灰９０重量％か
らなる混合物１００Ｋｇに水を２０Ｋｇ添加し、これを
パグミルで２０分間調湿混練りした。この混練物をロー
ル成形機にて８００ｋｇ／ｃｍ2の加圧力で成形するこ
とにより路盤材を作製した。該路盤材を直ちに粒度Ｍ−
２５に調整してロサンゼルスすり減り試験を行ったとこ
ろ、修正ＣＢＲ値が９８％であったが、０．４ｍｍ篩通
過分が６．３％と多いものとなった。Example 2 The Blaine specific surface area was about 21
20 kg of water was added to 100 kg of a mixture composed of 10 wt% of the same hydraulic powder as in Example 1 and 90 wt% of coal ash as in Example 1 except that the water content was changed to 00 cm 2 / g. It was humidified and kneaded. The kneaded material was formed with a pressing force of 800 kg / cm 2 by a roll forming machine to prepare a roadbed material. Immediately after the roadbed material is
When adjusted to 25, the Los Angeles abrasion test was carried out. As a result, the modified CBR value was 98%, but the passage through a 0.4 mm sieve was as large as 6.3%.

【００１６】［比較例１］ ブレーン比表面積を約１０
００ｃｍ2／ｇにした以外は実施例１と同様の水硬性粉
末１０Ｋｇと、実施例１と同様の石炭灰粉末９０Ｋｇか
らなる混合物１００Ｋｇに、水を２０Ｋｇ添加し、パグ
ミルで２０分間調湿混練りした。この混練物をロール成
形機にて８００ｋｇ／ｃｍ2の加圧力で成形した。この
成形物を直ちに粒度Ｍ−２５に調整してロサンゼルスす
り減り試験を行ったところ、ＣＢＲ値が６６％となり、
すり減り量が多く、路盤材としての適用は困難であっ
た。Comparative Example 1 The specific surface area of the brane was about 10
20 kg of water was added to 100 kg of a mixture of 10 kg of the same hydraulic powder as in Example 1 and 90 kg of coal ash powder as in Example 1 except that the water content was changed to 00 cm 2 / g, and the mixture was humidified and kneaded with a pug mill for 20 minutes. did. This kneaded material was formed with a pressing force of 800 kg / cm 2 by a roll forming machine. The molded article was immediately adjusted to a particle size of M-25 and subjected to a Loss Wear Test to find that the CBR value was 66%.
The abrasion loss was large, and application as a roadbed material was difficult.

【００１７】［比較例２］ 実施例１と同様の石炭灰９
０Ｋｇに普通セメントを１０Ｋｇ加えて混合してなる混
合物１００Ｋｇに、水を２０Ｋｇ添加した後、これをパ
グミルで２０分間調湿混練りした。この混練物をロール
成形機にて８００ｋｇ／ｃｍ2の加圧力で成形し成形物
を得た。これらを３日間養生した後に、ロサンゼルスす
り減り試験を行った結果、試験機内のボールによりすべ
て潰され、成形時の形状を保てなかった。また、これを
Ｍ−２５に調整して修正ＣＢＲを求めたところ、７５％
であった。Comparative Example 2 Coal ash 9 similar to that of Example 1
20 kg of water was added to 100 kg of a mixture obtained by adding and mixing 10 kg of ordinary cement to 0 kg, and the mixture was humidified and kneaded with a pag mill for 20 minutes. The kneaded product was formed by a roll forming machine at a pressure of 800 kg / cm 2 to obtain a formed product. After these were cured for 3 days, a loss test was performed in Los Angeles. As a result, all the balls were crushed by the balls in the testing machine, and the shape at the time of molding could not be maintained. The adjusted CBR was adjusted to M-25, and the corrected CBR was calculated.
Met.

【００１８】［比較例３］ 実施例１と同様の水硬性粉
末２Ｋｇと実施例１と同様の石炭灰粉末９８Ｋｇからな
る混合物１００Ｋｇに水を２０Ｋｇ加えて、これをパグ
ミルで２０分間調湿混練りした。この混練物をロール成
形機にて８００ｋｇ／ｃｍの加圧力で成形し、この成形
物を１週間の養生した後にロサンゼルスすり減り試験を
行った結果、試験機内のボールによりすべて潰され、極
めて脆弱であった。Comparative Example 3 20 kg of water was added to 100 kg of a mixture composed of 2 kg of hydraulic powder as in Example 1 and 98 kg of coal ash powder as in Example 1, and the mixture was humidified and kneaded with a pag mill for 20 minutes. did. This kneaded material was formed with a pressing force of 800 kg / cm using a roll forming machine, and after the formed material was cured for one week, a loss test was carried out in Los Angeles. As a result, all of the kneaded material was crushed by the balls in the testing machine and was extremely fragile. Was.

【００１９】[0019]

【発明の効果】本発明による路盤材用固化材は、速やか
に路盤材原料を固化することができ、また本固化材を用
いた路盤材は早期強度発現性に優れたものであるので、
製造後の養生期間も殆どかからず、その結果広大な養生
ヤードや養生促進設備等も不要である。更に本固化材は
都市ゴミや下水汚泥等の廃棄物を原料源とするため、他
の早期硬化性固化材と比較すると原料コストが安価とな
るばかりか、環境問題に対しも、廃棄物処理策の面から
優れた貢献を成すことができる。The solidified material for roadbed material according to the present invention can rapidly solidify the material of the roadbed material, and the roadbed material using the solidified material is excellent in early strength development.
The curing period after production is almost nil, and as a result, a vast curing yard and a curing promotion facility are not required. Furthermore, since this solidified material uses waste such as municipal waste and sewage sludge as a raw material, not only is the raw material cost inexpensive compared to other early-curing solidified materials, it is also a waste disposal measure for environmental issues. Can make an excellent contribution in terms of

Claims (3)

【特許請求の範囲】[Claims] 【請求項１】 都市ゴミ焼却灰、下水汚泥焼却灰の一種
以上を原料としてなる焼成物であって、Ｃ11Ａ7ＣａＣ
ｌ2、Ｃ11Ａ7ＣａＦ2、Ｃ3Ａの一種以上を１０〜４０重
量％及びＣ2Ｓ、Ｃ3Ｓの一種以上を含む焼成物と石膏か
らなるブレーン比表面積３０００ｃｍ2／ｇ以上の水硬
性材料であることを特徴とする路盤材用固化材。Claims 1. A fired product using at least one of municipal waste incineration ash and sewage sludge incineration ash as a raw material, wherein C 11 A 7 CaC
l 2, C 11 A 7 CaF 2, C 3 one or more 10 to 40 wt% and C 2 S of A, C 3 baked product comprising one or more S and consists of gypsum Blaine specific surface area of 3000 cm 2 / g or more A solidified material for roadbed materials, which is a hydraulic material. 【請求項２】 路盤材原料１００重量部に、請求項１記
載の路盤材用固化材５〜３０重量部と水を加えてなるこ
とを特徴とする路盤材。2. A roadbed material obtained by adding 5 to 30 parts by weight of the solidified material for a roadbed material according to claim 1 and water to 100 parts by weight of a roadbed material. 【請求項３】 路盤材原料が石炭灰を主成分とすること
を特徴とする請求項２記載の路盤材。3. The roadbed material according to claim 2, wherein the roadbed material is mainly composed of coal ash.
JP6042798A 1998-02-25 1998-02-25 Solidifying material for roadbed material and roadbed material using the same Pending JPH11236256A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6042798A JPH11236256A (en) 1998-02-25 1998-02-25 Solidifying material for roadbed material and roadbed material using the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6042798A JPH11236256A (en) 1998-02-25 1998-02-25 Solidifying material for roadbed material and roadbed material using the same

Publications (1)

Publication Number Publication Date
JPH11236256A true JPH11236256A (en) 1999-08-31

Family

ID=13141931

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6042798A Pending JPH11236256A (en) 1998-02-25 1998-02-25 Solidifying material for roadbed material and roadbed material using the same

Country Status (1)

Country Link
JP (1) JPH11236256A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003048457A1 (en) * 2001-12-07 2003-06-12 A Joint-Stock Corporation Kawashima Industry Method of constructing civil work bedding layer and bedding material for civil work
CN114656237A (en) * 2022-03-11 2022-06-24 山东大学 Titanium gypsum-based roadbed filler and preparation method and application thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003048457A1 (en) * 2001-12-07 2003-06-12 A Joint-Stock Corporation Kawashima Industry Method of constructing civil work bedding layer and bedding material for civil work
CN114656237A (en) * 2022-03-11 2022-06-24 山东大学 Titanium gypsum-based roadbed filler and preparation method and application thereof

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