JPH02239141A - Weight mortar, production thereof and apparatus for producing this mortar - Google Patents
Weight mortar, production thereof and apparatus for producing this mortarInfo
- Publication number
- JPH02239141A JPH02239141A JP1061423A JP6142389A JPH02239141A JP H02239141 A JPH02239141 A JP H02239141A JP 1061423 A JP1061423 A JP 1061423A JP 6142389 A JP6142389 A JP 6142389A JP H02239141 A JPH02239141 A JP H02239141A
- Authority
- JP
- Japan
- Prior art keywords
- mortar
- continuous
- continuous mixer
- mixer
- cement
- 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.)
- Granted
Links
- 239000004570 mortar (masonry) Substances 0.000 title claims abstract description 59
- 238000004519 manufacturing process Methods 0.000 title claims description 18
- 239000000463 material Substances 0.000 claims abstract description 52
- 239000002893 slag Substances 0.000 claims abstract description 22
- 239000004568 cement Substances 0.000 claims abstract description 21
- 238000002347 injection Methods 0.000 claims abstract description 13
- 239000007924 injection Substances 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 11
- 229910052802 copper Inorganic materials 0.000 claims description 11
- 239000010949 copper Substances 0.000 claims description 11
- 238000004898 kneading Methods 0.000 claims description 6
- 238000005303 weighing Methods 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000002156 mixing Methods 0.000 abstract description 13
- 239000000203 mixture Substances 0.000 abstract description 10
- 239000000654 additive Substances 0.000 abstract description 5
- PTVDYARBVCBHSL-UHFFFAOYSA-N copper;hydrate Chemical compound O.[Cu] PTVDYARBVCBHSL-UHFFFAOYSA-N 0.000 abstract description 5
- 239000002994 raw material Substances 0.000 abstract description 3
- 238000013329 compounding Methods 0.000 abstract 1
- 230000014759 maintenance of location Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 18
- 230000005484 gravity Effects 0.000 description 13
- 238000000926 separation method Methods 0.000 description 12
- 239000002245 particle Substances 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000010276 construction Methods 0.000 description 6
- 238000007796 conventional method Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000000996 additive effect Effects 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 229920001875 Ebonite Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000002301 combined effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000000109 continuous material Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007580 dry-mixing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 229910052595 hematite Inorganic materials 0.000 description 1
- 239000011019 hematite Substances 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 description 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000012857 radioactive material Substances 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
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
- C04B18/04—Waste materials; Refuse
- C04B18/14—Waste materials; Refuse from metallurgical processes
- C04B18/141—Slags
-
- 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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は重量モルタル及びその製造法並びにその装置で
あって、原子炉遮蔽壁等の各種放射性物質取り扱い施設
の遮蔽体として使用する均一 かつ施工性の良好な重量
モルタル及びその製造法並びにその装置に関するもので
ある。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a heavy mortar, a method for producing the same, and an apparatus thereof, which are uniform and easy to install for use as shielding bodies for various radioactive material handling facilities such as nuclear reactor shielding walls. The present invention relates to a gravimetric mortar with good properties, a method for producing the same, and an apparatus therefor.
重量モルタルは、原子炉遮蔽壁、原子炉と梁、基礎版の
取合い部の充填用或は圧延機、タービン、コンブレッサ
ー等の重機械類の据付工事等に広く用いられるものであ
る。Heavy mortar is widely used for filling the joints of nuclear reactor shielding walls, reactors and beams, and foundation slabs, and for the installation of heavy machinery such as rolling mills, turbines, and compressors.
また、重量モルタルは設置部材の数１の間隙から注入し
間隙内部まで充填できる優れた流動性及び放射線を完全
に遮蔽するための高比重（通常２．１〜２、３）と均一
性並びに構造部材としての構造耐力、機械設備の運転時
に生ずる各種荷重を支持し、基礎部に伝達させるための
力学性能が要求される。In addition, heavy mortar has excellent fluidity that allows it to be injected from several gaps in the installation member and fills it to the inside of the gap, and has a high specific gravity (usually 2.1 to 2.3), uniformity, and structure to completely shield radiation. It is required to have structural strength as a member and mechanical performance to support the various loads generated during operation of mechanical equipment and transmit them to the foundation.
また、施工においては、機械基礎部が数ｇの小規模のも
のから原子炉遮蔽壁のように１回２〜１０ｍゝ トータ
ル２００〜３００ｍ ’にも及ぶ大規模なものまであり
、その工事規模に応じた施工、圧送、注入方法が必要で
ある。In addition, construction work ranges from small-scale machines with a few grams of machine foundations to large-scale projects such as nuclear reactor shielding walls, which can reach 2 to 10 m at a time and 200 to 300 m in total. Appropriate construction, pumping, and injection methods are required.
従来の重量モルタルで高比重を確保する方法として、
（１）細骨材の一部或は全部を砂鉄、スティ−ルショッ
ト等又は磁鉄鉱若しくは赤鉄鉱粉に置換する方法。As a method of ensuring high specific gravity in conventional gravimetric mortar, (1) A method of replacing part or all of the fine aggregate with iron sand, steel shot, etc., or magnetite or hematite powder.
（２）細骨材に転炉風砕スラグを使用する方法（特開昭
５８〜１９０８５９号公報）。(2) A method of using crushed converter slag as fine aggregate (Japanese Unexamined Patent Publication No. 58-190859).
（３）細骨材に金属骨材系収縮プレミックス材を使用す
る方法。(3) A method of using a metal aggregate shrinkage premix material as the fine aggregate.
等が公知である。etc. are publicly known.
他方、従来かかる重量モルタルを製造、施工する方法と
して、
（一）現場の注入口でベール缶容器、ハンドミキサーを
用いて１バッチ約１０１２づつ重量モルタルを練り混ぜ
、順次注入、充填する方法。On the other hand, conventional methods for producing and applying such heavy mortar include (1) a method of kneading the heavy mortar in batches of about 1012 kg each using a bale can container and a hand mixer at an on-site injection port, and sequentially injecting and filling the mortar.
（二）現場の注入口近傍にモルタルミキサーを設置し、
１バフチ約１００〜５００Ｑ．の重量モルタルを製造し
、モルタルボンブを用いて注入、充填する方法。(2) Install a mortar mixer near the injection port on site,
1 bakhchi approximately 100-500Q. A method of producing weight mortar and injecting and filling it using a mortar bomb.
（三）バブチャープラントで空練りした後、注人を２回
以上に分け、注入間隔を少な《とも１分以上あけて練り
混ぜを行って重量モルタルを製造し、これをアジテータ
ートラックで現場に運搬し、モルタルボンブで注入、充
填する方法（特開昭６２−２７５０４９号公報）。(3) After dry mixing in the bubble plant, divide the pouring into two or more times and mix with a gap of at least 1 minute between injections to produce heavy mortar, which is transported to the site using an agitator truck. A method of transporting, injecting and filling with a mortar bomb (Japanese Patent Application Laid-Open No. 62-275049).
等が公知である。etc. are publicly known.
従来における重量モルタルの高比重を確保するもののう
ち、前記（１）は置換する重賃細骨材の比重が４．６〜
７．９で他の材料との比重差が大きく均一混合が困難で
偏在し易く、かつその粒径も悪く、流動性を改善するた
めに、水／結合材 比が大となり、分離現象を助長する
のでさらに均一性が得がたい。Among the conventional methods for ensuring a high specific gravity of heavy mortar, the above (1) is based on a method in which the specific gravity of the heavy fine aggregate to be replaced is 4.6 to 4.6.
7.9, it has a large specific gravity difference with other materials, making it difficult to mix uniformly and tends to be unevenly distributed, and its particle size is also poor.In order to improve fluidity, the water/binder ratio becomes large, promoting separation phenomena. Therefore, it is difficult to obtain uniformity.
これに対し、前記（２）は転炉風砕スラグの比重が約３
．６程度であって、材料の比重差１こよる材料分離は生
じにくいが、粒径が球形に近《セメントペーストとの接
触面積が少なく、ベアリング作用もあってこれによる材
料分離が生じ易い。また、これを防止するために水／結
合材 比を小さくしてペーストの粘性を高める必要があ
るため、充填性が懸念される。On the other hand, in (2) above, the specific gravity of the converter slag is approximately 3.
．． 6, and material separation is unlikely to occur due to the difference in specific gravity of the materials by 1, but the particle size is close to spherical (the contact area with the cement paste is small, and there is also a bearing effect, so material separation is likely to occur due to this). Furthermore, in order to prevent this, it is necessary to increase the viscosity of the paste by reducing the water/binder ratio, so filling properties are a concern.
前記（３）は、プレミックスタイプで計量の手間がな《
、品質管理面でも有利であるが、逆に配合が一定である
ため、対象物によっては必要以上に重量モルタルの比重
が過大となり、かつ大型部材においては結合材の水和熱
によるひび割れ発生の問題がある。The above (3) is a premix type, which eliminates the hassle of measuring.
Although this is advantageous in terms of quality control, on the other hand, since the composition is constant, the specific gravity of the mortar may be excessive depending on the object, and in large parts, there is a problem of cracking due to the heat of hydration of the binding material. There is.
さらに、従来の重量モルタルの製造、施工方法の内、前
記（一）の方法は、バイブ回りのコーキング等小規模工
事には適しているが、充填量が多い場合には製造が間に
合わない。Further, among the conventional methods for manufacturing and applying heavy mortar, method (1) is suitable for small-scale construction work such as caulking around vibrators, but cannot be manufactured in time if the filling amount is large.
前記（二）の方法は、最も一般的に行われている方法で
あるが、材料の計量、ミキサーへの投入作業が煩雑で多
数の作業員を要し、ミキサーの１バッチの練り混ぜ所要
時間も５分以上必要であって、練り混ぜ効率が悪く、短
時間に大量に注入する原子炉遮蔽壁工事等への適用には
無理がある。Method (2) above is the most commonly used method, but the work of measuring the ingredients and putting them into the mixer is complicated and requires a large number of workers, and the time required for kneading one batch in the mixer is short. However, it requires more than 5 minutes, and the mixing efficiency is poor, making it impossible to apply it to nuclear reactor shielding wall construction, etc., where a large amount is injected in a short period of time.
前記（三）の方法は、急速大量施工には効果的であるが
、コンクリートプラントから現場までの距離が遠い場合
或は交通渋滞等で供給がスムースにいかない場合、モル
タル圧送管内で閉塞の問題が発生する。また、重量モル
タルは練り混ぜ方法によってその性状を著しく異にし、
重量モルタルに剪断力を与えて練り混ぜる方式が最良と
されているが、コンクリートプラントのミキサーはその
ような練り混ぜ機構を有していない。Method (3) above is effective for rapid mass construction, but if the distance from the concrete plant to the site is long or the supply is not smooth due to traffic congestion, etc., there may be problems with blockage in the mortar pressure pipe. occurs. In addition, the properties of heavy mortar vary significantly depending on the mixing method.
It is said that the best method is to apply shear force to heavy mortar and mix it, but mixers in concrete plants do not have such a mixing mechanism.
本発明は前述従来の欠点を改善し、均一かつ施工性の良
好な重量モルタル及びその製造法並びにその装置を提供
するものである。The present invention improves the above-mentioned conventional drawbacks and provides a gravimetric mortar that is uniform and has good workability, a method for manufacturing the same, and an apparatus for the same.
本出願の第１の発明は重量モルタルとして、セメント１
００重量部に対し、細骨材として銅水砕スラグ１００〜
２５０重量部配合されているという構成を採用している
。The first invention of the present application uses cement 1 as a gravimetric mortar.
00 parts by weight, 100 to 100 parts of granulated copper slag as fine aggregate
The composition is such that 250 parts by weight is blended.
また、第２の発明は重量モルタルの製造法において、連
続計量供給装置と連続ミキサーとが一体的に組み付けら
れた製造設備を、現場注入口近傍に設置し、連続計量供
給装置でセメント、銅水砕スラグ及び水を夫々連続的に
計量し、これを連続ミキサーに供給し、混練して所定箇
所へ注入、充填するという構成を採用している。In addition, the second invention is a method for manufacturing gravimetric mortar, in which manufacturing equipment in which a continuous metering and feeding device and a continuous mixer are integrated is installed near an on-site injection port, and the continuous metering and feeding device is used to mix cement, copper water, etc. The system employs a structure in which crushed slag and water are each continuously measured, supplied to a continuous mixer, kneaded, and injected and filled into a predetermined location.
さらに、第３の発明は連続計量供給装置と連続ミキサー
が一体的に組み付けられている製造設備の連続ミキサー
において、連続ミキサーに装着されている回転軸周面の
両端に夫々スクリュー羽根が取り付けられており、両端
のスクリュー羽根の間の回転軸周面に、複数のパドル羽
根が取り付けられていると共に、該複数のパドル羽根の
一部が材料の送り方向と逆向きのパドル羽根とされてい
るという構成を採用している。Furthermore, the third invention is a continuous mixer of manufacturing equipment in which a continuous metering and feeding device and a continuous mixer are integrally assembled, in which screw blades are attached to both ends of the circumferential surface of a rotating shaft attached to the continuous mixer. A plurality of paddle blades are attached to the circumferential surface of the rotating shaft between the screw blades at both ends, and a part of the plurality of paddle blades is said to be a paddle blade facing in the opposite direction to the material feeding direction. The configuration is adopted.
在に、本発明の細骨材として使用する銅水砕スラグの組
成の一例を、公知の細骨材と比較して示せば、第１表及
び第２表の如くである。An example of the composition of the granulated copper slag used as the fine aggregate of the present invention is shown in Tables 1 and 2 in comparison with known fine aggregates.
即ち、本発明で使用する銅水砕スラグは、熔融スラグを
２０〜４０倍の水中に落下させて急冷粉砕したもので、
一般の空冷スラグにみられるライム固溶体は存在しない
。That is, the granulated copper slag used in the present invention is obtained by dropping molten slag into 20 to 40 times as much water and quenching and pulverizing it.
There is no lime solid solution found in general air-cooled slag.
また、その物性値は、第２表に示すように、絶乾比重が
普通骨材に比べて大きく、また砂鉄や鉄鉱石のように過
大でもな《、適度に偏平な針状結晶を含む良好な粒形と
粒度分布を有するという特質がある。In addition, as shown in Table 2, its physical properties are such that its absolute dry specific gravity is higher than that of ordinary aggregate, and it is not excessive like iron sand or iron ore. It has the characteristic of having a uniform particle shape and particle size distribution.
本発明で使用するボルトランドセメントは、ＪＩＳ Ｒ
５２１０ ｒボルトランドセメント」に規定されるも
のはいずれも使用できるが、普通或は中庸熱ボルトラン
ドセメントが好ましい。The Boltland cement used in the present invention is JIS R
5210r Boltland Cement" can be used, but normal or moderate heat Boltland Cement is preferred.
また、ボゾラン物質含有ボルトランドセメントも使用で
きる。この場合、ボルトランドセメントに含有されるボ
ゾラン物質としては、高炉水砕スラグ、フライアッシュ
及びンリカが好ましく、ボゾラン物質の含有量は、ボゾ
ラン物質含有ボルトランドセメント１００重量部中に１
０〜２８重量部の範囲で含有するのが望ましい。Bortland cement containing bozolan substances can also be used. In this case, the bozolan substance contained in Bortland cement is preferably granulated blast furnace slag, fly ash, or ash, and the content of the bozolan substance is 1 part by weight in 100 parts by weight of Bortland cement containing bozolan substance.
The content is preferably in the range of 0 to 28 parts by weight.
本発明に使用する混和材料は、減水剤、膨張材及び増粘
剤からなるもので、市販されている上記材料はいずれも
使用できるが、例えば日曹マスタービルダーズ社製、商
品名［ＧＡ Ｄ−２０００Ｔ Ｎ Ｊが好ましく、混和
材料の使用量はボゾラン物質含有セメント１００重量部
に対して８〜１２重量部である。８重量部より少ないと
モルタルの流動性が低下し、１２重量部より多いと材料
分離が生じ易くなり、いずれも本発明の目的が達成でき
ない。The admixture used in the present invention consists of a water reducing agent, an expanding agent, and a thickening agent, and any of the above-mentioned commercially available materials can be used. 2000 T N J is preferred, and the amount of admixture used is 8 to 12 parts by weight per 100 parts by weight of the cement containing bozolan substances. If it is less than 8 parts by weight, the fluidity of the mortar will decrease, and if it is more than 12 parts by weight, material separation will likely occur, and in either case, the object of the present invention cannot be achieved.
本発明で使用する銅水砕スラグの使用量は、セメント１
００重量部に対して、２００〜２５０重量部である。２
００重量部未満ではモルタル中のセメン｝３１が相対的
に増加して永和発熱が大きくなり、また、２５０重量部
を越えると、材料分離が生じるほか、流動性も低下する
ので好まし《ない。The amount of granulated copper slag used in the present invention is cement 1
00 parts by weight, it is 200 to 250 parts by weight. 2
If it is less than 0.00 parts by weight, the amount of cement}31 in the mortar will increase relatively and the Eiwa heat generation will become large, and if it exceeds 250 parts by weight, material separation will occur and fluidity will decrease, which is not preferable.
つぎに、第２の発明は材料の連続計量供給装置と連続ミ
キサーとが一体的に組み付けられた装置を用いて重量モ
ルタルを製造するものである。該連続計量供給装置は、
材料貯蔵ビン（又はタンク）、計量装置とからなってお
り、材料貯蔵ビンは、セメント、銅水砕スラグその他必
要な添加材料等の複数のビンが設置されており、夫々必
要量を計量装置で計量した後、連続計量供給装置から連
続ミキサーに供給するものである。Next, the second invention is to manufacture gravimetric mortar using a device in which a continuous material metering and feeding device and a continuous mixer are integrally assembled. The continuous dispensing device includes:
It consists of a material storage bin (or tank) and a measuring device.The material storage bin is equipped with multiple bins for cement, granulated copper slag, and other necessary additive materials, and the required amount is measured using the measuring device. After metering, it is fed from a continuous metering and feeding device to a continuous mixer.
前記連続計量供給装置と一体的に組み付けられている連
続ミキサーは、オーガータイブのものである。本発明で
使用する連続ミキサー本体は、長さ２．７〜３。３ｍ，
幅約４０ｃｍの樋状の硬質ゴム製の搬送部であって、該
搬送部内に回転軸が装着されており、該回転軸の周面両
端に、夫々スクリュー羽根が取り付けられ、両スクリュ
ー羽根の間に、複数のパドル羽根が取り付けられており
、該パドル羽根の材料送り方向後半部分に一部送り方向
と逆向きのパドル羽根が取り付けられており、これらの
羽根先端と、樋状の搬送部内面とのクリアランスが殆ど
ない構造からなっている。このパドル羽根は材料の送り
よりは練り混ぜを主としており、短時間に十分な練り混
ぜを行うことができる。また、練り混ぜ効率を同上する
ため使用に当たり、材料送り出し端部側を１０〜３０°
の角度に持ち上げて傾斜させるものである。The continuous mixer integrally assembled with the continuous metering device is of the auger type. The continuous mixer body used in the present invention has a length of 2.7 to 3.3 m,
It is a trough-shaped hard rubber conveying section with a width of about 40 cm, and a rotating shaft is installed inside the conveying section.Screw blades are attached to both ends of the circumferential surface of the rotating shaft, and there is a space between the two screw blades. A plurality of paddle blades are attached to the blade, and a part of the paddle blade facing in the opposite direction to the material feeding direction is attached to the rear half of the paddle blade in the material feeding direction. The structure has almost no clearance between the This paddle blade is mainly used for mixing materials rather than feeding them, and can perform sufficient mixing in a short period of time. In addition, in order to improve the kneading and mixing efficiency, when using the material, the end side of the material should be rotated at an angle of 10 to 30 degrees.
It is intended to be lifted and tilted at an angle of .
第２の発明における連続計量供給装置と連続ミキサーと
が一体的に組み付けられた設備を現場注入口近傍に設置
し、連続計量供給装置のビンに所要の原料を投入し、計
量装置で夫々の容積を連続的に計量して連続ミキサーに
供給する。該連続ミキサーは回転軸を２００〜３００ｒ
ｐｍの高速で回転させることによって該回転軸一端に取
り付けられているスクリュー羽根で材料を他端へ送る。A facility in which the continuous metering and feeding device and the continuous mixer according to the second invention are integrally assembled is installed near the on-site injection port, the required raw materials are put into the bin of the continuous metering and feeding device, and the volume of each is measured by the measuring device. Continuously meter and feed into a continuous mixer. The continuous mixer has a rotating shaft of 200 to 300 r.
By rotating the material at a high speed of pm, a screw blade attached to one end of the rotating shaft sends the material to the other end.
一般に、重量モルタルは粘性が高く、粗骨材による粒子
摩擦効果がないため、連続ミキサーをそのまま使用して
も練り混ぜが不十分でダマができ易い。In general, gravimetric mortar has a high viscosity and does not have the particle friction effect of coarse aggregate, so even if a continuous mixer is used as is, mixing is insufficient and lumps are likely to form.
これに対し、第３の発明の連続ミキサーは、材料供給端
のスクリュー羽根で送られた後、中間部のパドル羽根で
材料を送ると共に、逆向きのパドル羽根の作用で十分に
練り混ぜられる。この場合、逆向きのパドル羽根は連続
ミキサーの送り方向の後半部分に設けられ、該送り方向
と逆向きのため材料の練り混ぜが十分に行われるため、
従来の如きダマの形成は皆無である。 前記連続ミキサ
ーは、例えば回転軸を約３０Ｏｒｐｍで回転し、樋状搬
送部の傾斜角度約１０〜３０’の場合、材料の滞留時間
は約４０〜６０秒で処理できるが、本発明は必ずしもこ
れら数値に限定されるものではなく、配合原料の種類又
は割合等を勘案して適宜採択することができる。On the other hand, in the continuous mixer of the third invention, after the material is fed by the screw blade at the material supply end, the material is sent by the paddle blade in the middle part, and the material is sufficiently mixed by the action of the paddle blade in the opposite direction. In this case, the paddle blades facing in the opposite direction are provided in the latter half of the continuous mixer in the feeding direction, and since they are oriented in the opposite direction to the feeding direction, the materials can be sufficiently mixed.
There is no formation of lumps as in the conventional method. For example, when the continuous mixer rotates the rotating shaft at about 30 rpm and the trough-like conveying section has an inclination angle of about 10 to 30', the residence time of the material can be about 40 to 60 seconds, but the present invention does not necessarily apply to these conditions. It is not limited to numerical values, and can be selected as appropriate by taking into account the types or proportions of the raw materials to be mixed.
第２の発明によれば、モルタル材料を定期的に、かつ自
動的に計１、供給することができるため、多数の作業員
の必要なく小人数で処理することができ、しかも１時間
当たり１０１３以上の急速大量施工（製造能力約１２ｍ
’／時）の製造、施工ができ、さらに現場の注入速度に
合わせて製造できるので、常に流動性良好でフローダウ
ン及び材料分離の殆どない重量モルタルの製造、施工が
達成できる。According to the second invention, a total of 1 mortar material can be supplied periodically and automatically, so a small number of workers can process the mortar material without the need for a large number of workers, and moreover, the mortar material can be supplied in a total of 1 mortar material per hour. Rapid mass construction (manufacturing capacity approximately 12m)
Since it can be manufactured and installed according to the injection speed on site, it is possible to manufacture and install heavy mortar with good fluidity and almost no flow down or material separation.
また、第１の発明は、高比重、高単位容積質量で、かつ
適度に偏平な粒形と適度な粒度分布を有している銅水砕
スラグを細骨材としているため、高い流動性と材料分離
のないものたらしめることかでき、また硬化後における
重ｍモルタルの乾燥比重の規定値２．１〜２．３を十分
に満足でき、均一性の高い優れた構造物を構築すること
ができる。In addition, the first invention uses granulated copper slag as fine aggregate, which has high specific gravity, high unit volume mass, moderately flat particle shape, and moderate particle size distribution, so it has high fluidity. It is possible to create a structure without material separation, and it is possible to fully satisfy the specified dry specific gravity value of 2.1 to 2.3 for heavy mortar after curing, and to construct an excellent structure with high uniformity. can.
第１図は第２の発明で使用する装置の一実施例の概略を
示したものであり、また第２図は前記装置の連続ミキサ
ーで使用する練り混ぜ用の回転軸の一実施例を示したも
のであるが、以下これら図面に基づいて第２の発明及び
第３の発明について具体的に説明する。第２の発明で使
用する装置は連続計量供給装置Ｉと連続ミキサー■とが
一体的に組み付けられたものからなっている。連続計量
供給装置Ｉは、細骨材ビン１、セメントビン２、添加材
ビン３及び水タンク４が設けられており、各ビン１〜３
の下側に夫々計量フィーダー５が取り付けられていると
共に、さらに各計蛍フィーダー５の下側に引き出しコン
ベア−６が設置され、該引き出しコンベア−６が矢印方
向に回転するものである。Fig. 1 shows an outline of an embodiment of the device used in the second invention, and Fig. 2 shows an embodiment of the rotating shaft for kneading used in the continuous mixer of the device. However, the second invention and the third invention will be specifically explained below based on these drawings. The device used in the second invention is composed of a continuous metering and feeding device I and a continuous mixer (2) that are integrally assembled. The continuous metering and feeding device I is provided with a fine aggregate bin 1, a cement bin 2, an additive bin 3, and a water tank 4.
A weighing feeder 5 is attached to the lower side of each feeder, and a drawer conveyor 6 is also installed below each metering feeder 5, and the drawer conveyor 6 rotates in the direction of the arrow.
他方、前記引き出しコンベア−６の回転方向先端に連続
ミキサー■が取り付けられている。該連続ミキサー■は
樋状の硬質弾性ゴムからなる本体７と、その内部に本体
７の軸に沿って回転軸が装着されたもので、他端を持ち
上げ、傾斜角度１０〜３０°とされている。On the other hand, a continuous mixer (2) is attached to the rotational end of the drawer conveyor 6. The continuous mixer (2) has a gutter-shaped main body 7 made of hard elastic rubber, and a rotating shaft installed inside the main body 7 along the axis of the main body 7. The other end is raised and the inclination angle is 10 to 30 degrees. There is.
前記連続ミキサーＨの本体７内に装着されている回転軸
８は、第２図に示すように、回転軸８の両端周面にスク
リュー羽根９ａ、９ｂが取り付けられていると共に、該
スクリュー羽根！ｌａ，９ｂの間の周面に複数のパドル
羽根１０が取り付けられている。As shown in FIG. 2, the rotating shaft 8 installed in the main body 7 of the continuous mixer H has screw blades 9a and 9b attached to the circumferential surface of both ends of the rotating shaft 8. A plurality of paddle blades 10 are attached to the circumferential surface between la and 9b.
他方、複数のパドル羽根のうち、後半部分の一部のパド
ル羽根１１ａ， ｆｌｂ，．Ｉ．１ｃ，ｉｌｄは、材料
の送り方向く第２図中矢印方向）と逆向きの羽根に形成
されている。尚、パドル羽根１１ａは、パドル羽根１０
ａの反対側に同一傾斜角度で存在している。また、該パ
ドル羽根１１ａ〜ｌｉｄＯ数は、材料の種類、配合割合
等によって適宜変更することができる。On the other hand, among the plurality of paddle blades, some of the paddle blades 11a, flb, . I. 1c and ild are formed on blades facing opposite to the material feeding direction (arrow direction in FIG. 2). Note that the paddle blade 11a is similar to the paddle blade 10.
It exists on the opposite side of a with the same inclination angle. Further, the number of paddle blades 11a to lidO can be changed as appropriate depending on the type of material, blending ratio, etc.
第２の発明は、連続計１供給装置Ｉと連続ミキサー■と
が一体的に組み付けられた設備で、これを現場注入口近
傍に設置し、連続計量供給装置Ｉで夫々計１された銅水
砕スラグ、セメント、添加材を計１フィーダー５を介し
て引き出しコンベア−６に供給し、該引き出しコンベア
−６で第１図中右端に送り、ここで計量された水を水タ
ンク４から供給混合ｊ，て連続ミキサーＨに供給する。The second invention is a facility in which a continuous metering supply device I and a continuous mixer (■) are integrally assembled, and this is installed near the on-site injection port, and the continuous metering and supplying device I supplies copper water with a total of 1, respectively. Crushed slag, cement, and additives are supplied through a total of one feeder 5 to a pull-out conveyor 6, and the pull-out conveyor 6 sends them to the right end in FIG. j, and fed to continuous mixer H.
連続ミキサー■は、回転軸を約２００〜３００ｒｐ曽の
高速で回転し、また傾斜角３００、材料の滞留時間４０
〜６０秒程度とし、材料はスクリュー羽根９ａで練り混
ぜられながら他端へ送られ、さらにその先に取り付けら
れているパドル羽根１０後半部分の一部のパドル羽根１
１ａ＝ｌｌｄで十分に練り混ぜられつつ他端に送られる
。The continuous mixer ■ rotates the rotating shaft at a high speed of about 200 to 300 rpm, and has an inclination angle of 300 and a material residence time of 40.
~60 seconds, the material is mixed by the screw blade 9a and sent to the other end, and then a part of the paddle blade 1 of the second half of the paddle blade 10 attached to the tip of the screw blade 9a is mixed.
1a=lld, the mixture is thoroughly mixed and sent to the other end.
この場合、ハドル羽根１０，ｌｌａ〜ｌｌｄの先端と本
体７内面とのクリアランスが殆どないため、材料が該ク
リアランスに食い込むおそれは全くなく、材料の剪断対
流の複合作用と、拡散混合作用との両作用の効果が相乗
されることによって短時間に十分に練り混ぜができ、ま
たダマの形成は皆無であり、連続ミキサー■から取り出
された材料は直接注入口へ充填できる。In this case, since there is almost no clearance between the tips of the huddle blades 10, lla to lld and the inner surface of the main body 7, there is no fear that the material will dig into the clearance, and both the combined effect of shear convection and the diffusion mixing effect of the material can be achieved. Due to the synergistic effects of these actions, sufficient mixing can be achieved in a short period of time, and there is no formation of lumps, and the material taken out from the continuous mixer (2) can be directly filled into the injection port.
下記の各試験例は、銅水砕スラグを細骨材としたものと
、従来のものとを比較したものである。Each test example below compares one using granulated copper slag as fine aggregate and a conventional one.
重量モルタルの性能比較試験；
４種類の細骨材を用いて、フロー値が２８０±２０ａｍ
になるような配合を求め、フレッシュ及び硬化モルタル
の性能比較を行った。Performance comparison test of gravimetric mortar; flow value is 280 ± 20 am using 4 types of fine aggregate
The performance of fresh and hardened mortars was compared in order to find a formulation that would achieve this.
フレッシュモルタルの試験結果は第３表に示すごとくで
あって、銅水砕スラグを細骨材に用いたモルタルは、粒
形が適当に偏平であるため単位水１は転炉スラグを細骨
材に用いたモルタルよりも増加したが、他の細骨材を用
いたモルタルよりも減少し、経時に伴うフローダウンは
単位水量が増えモルタル中の遊離水が増加するため１時
間後においても殆どなく良好であった。The test results for fresh mortar are shown in Table 3, and since mortar using granulated copper slag as fine aggregate has a suitably flat grain shape, unit water 1 uses converter slag as fine aggregate. Although it increased more than the mortar used in the mortar, it decreased more than the mortar using other fine aggregates, and the flow down with time is almost non-existent even after 1 hour because the unit water volume increases and the free water in the mortar increases. It was good.
硬化モルタルの試験結果は第４表に示すごとくであって
、水／結合材 比が小さいため、圧縮強度は大きく、ブ
リージングもなく、比重も十分大きく、上、下の比重差
なく材料分離は認められず十分な性能を示した。The test results for the hardened mortar are shown in Table 4. Because the water/binder ratio is small, the compressive strength is high, there is no breathing, and the specific gravity is sufficiently large, and material separation is observed with no difference in specific gravity between the upper and lower parts. It showed sufficient performance.
練り混ぜ性能の比較試験：
４種類のミキサーを用いて同一配合のモルタルの練り混
ぜを行い性能比較を行った。尚、ハンドミキサーは１バ
ッチの量を１０Ｑとして全材料投入後３分間練り混ぜ、
モルタルミキサーは１バグチの量を２００（ｌとして全
材料投入後５分間練り混ぜた。Comparative test of mixing performance: Mortar of the same composition was mixed using four types of mixers, and the performance was compared. In addition, with a hand mixer, the amount of one batch is 10Q, and after adding all the ingredients, mix for 3 minutes.
The mortar mixer was used to knead for 5 minutes after adding all the ingredients, with the amount of 1 baguchi being 200 (l).
試験結果は第５表に示すごとくであって、在来型連続ミ
キサーを用いて練り混ぜたモルタルはダマがあり材料分
離が認められたのに対して、改良型連続ミキサーを用い
て練り混ぜたモルタルは流動性も大きく、材料分離もな
く良好な性状を示した。The test results are shown in Table 5, and the mortar mixed using the conventional continuous mixer had lumps and material separation was observed, whereas the mortar mixed using the improved continuous mixer had lumps and material separation. The mortar had good fluidity and exhibited good properties without material separation.
以上の如《第１の発明は、銅水砕スラグを細骨材として
使用することによって、その適度に偏平な針状結晶を含
む粒形と、良好な粒度分布とにより高い流動性と材料分
離を起こさない良好な施工性を確保でき、硬化後は通常
用いられている重量モルタルの規定値２．１〜２３を十
分満足し、かつ均一性の高い優れた構造物を構築できる
。As described above, the first invention uses granulated copper slag as a fine aggregate to achieve high fluidity and material separation due to its particle shape including moderately flat needle-like crystals and good particle size distribution. It is possible to ensure good workability without causing any problems, and after curing, it is possible to fully satisfy the standard values of 2.1 to 23 for weight mortar commonly used, and to construct an excellent structure with high uniformity.
また、第２の発明は連続計量供給装置と連続ミキサーが
一体的に組み付けられている設備を現場注入口近傍に設
置して連続的に重量モルタルを急速、かつ大量に施工す
ることができ、従って従来の煩雑で、多数の作業員も必
要でなく、製造作業の大幅な省力化、合理化を図ること
ができる。In addition, the second invention is capable of rapidly and continuously applying heavy mortar in large quantities by installing equipment in which a continuous metering supply device and a continuous mixer are integrally assembled near the on-site injection port. The conventional method does not require a large number of workers and is complicated, making it possible to significantly save labor and streamline manufacturing operations.
また、連続ミキサーは小型で十分な練り混ぜができるた
め、モルタル製造プラントのコンパクト化が達成され、
設備の占有面積を縮小でき、現場の注入速度に応じて流
動性良好で、しかもフローダウンの殆どない良質な重量
モルタルを提供することができる。In addition, since the continuous mixer is small and can perform sufficient mixing, mortar manufacturing plants can be made more compact.
It is possible to reduce the area occupied by the equipment, and to provide a high-quality gravimetric mortar that has good fluidity according to the injection rate on site and has almost no flow down.
第１図は第２の発明で使用する装置の一実施例の説明図
、第２図は連続ミキサーの練り混ぜ用回転軸の一実施例
の説明図である。
Ｉ：連続計量供給装置、■：連続ミキサーｌ：細骨材ビ
ン、２：セメントビン、３：添加材ビン、４：水タンク
、５：計量フィーダ６：引き出しコンベア、７：連続ミ
キサー本体、８：回転軸、９ａ， ９ｂ：スクリュ・一
羽根、１０：パドル羽根、ｌｌａ，ｌｌｂ，ｌｌｃ，ｌ
ｉｄ：逆向きのパドル羽根。FIG. 1 is an explanatory diagram of one embodiment of the apparatus used in the second invention, and FIG. 2 is an explanatory diagram of one embodiment of the rotating shaft for kneading of a continuous mixer. I: Continuous metering feeder, ■: Continuous mixer l: Fine aggregate bin, 2: Cement bin, 3: Additive bin, 4: Water tank, 5: Metering feeder 6: Drawer conveyor, 7: Continuous mixer main body, 8 : Rotating shaft, 9a, 9b: Screw, one blade, 10: Paddle blade, lla, llb, llc, l
id: Reverse paddle blade.
Claims (3)
細骨材として銅水砕スラグ２００〜２５０重量部配合さ
れていることを特徴とする重量モルタル。(1) The weight of mortar is based on 100 parts by weight of cement.
A heavy mortar characterized by containing 200 to 250 parts by weight of granulated copper slag as a fine aggregate.
と連続ミキサーとが一体的に組み付けられた製造設備を
、現場注入口近傍に設置し、連続計量供給装置でセメン
ト、銅水砕スラグ及び水を夫々連続的に計量し、これを
連続ミキサーに供給し、混練して所定箇所へ注入、充填
することを特徴とする重量モルタルの製造法。(2) In the production of heavy mortar, a manufacturing facility in which a continuous metering and feeding device and a continuous mixer are integrated is installed near the on-site injection port, and the continuous metering and feeding device is used to feed cement, granulated copper slag, and water. A method for producing gravimetric mortar characterized by continuously weighing each mortar, supplying it to a continuous mixer, kneading it, and injecting and filling it into a predetermined location.
付けられている製造設備の連続ミキサーにおいて、回転
軸周面の両端に夫々スクリュー羽根が取り付けられてお
り、両端のスクリュー羽根の間の回転軸周面に、複数の
パドル羽根が取り付けられていると共に、連続ミキサー
の送り方向の後半部分に、材料の送り方向と逆向きのパ
ドル羽根が部分的に設けられていることを特徴とする連
続ミキサー。(3) In a continuous mixer of manufacturing equipment in which a continuous metering and feeding device and a continuous mixer are integrated, screw blades are attached to each end of the circumferential surface of the rotating shaft, and the rotating shaft is connected between the screw blades at both ends. A continuous mixer characterized in that a plurality of paddle blades are attached to the peripheral surface, and a paddle blade facing in the opposite direction to the material feeding direction is partially provided in the latter half of the continuous mixer in the feeding direction. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6142389A JP2729267B2 (en) | 1989-03-14 | 1989-03-14 | Method and apparatus for manufacturing weight mortar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6142389A JP2729267B2 (en) | 1989-03-14 | 1989-03-14 | Method and apparatus for manufacturing weight mortar |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9211353A Division JPH10130043A (en) | 1997-07-22 | 1997-07-22 | Heavy mortar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02239141A true JPH02239141A (en) | 1990-09-21 |
| JP2729267B2 JP2729267B2 (en) | 1998-03-18 |
Family
ID=13170662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6142389A Expired - Fee Related JP2729267B2 (en) | 1989-03-14 | 1989-03-14 | Method and apparatus for manufacturing weight mortar |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2729267B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11263661A (en) * | 1998-01-13 | 1999-09-28 | Nato Kenkyusho:Kk | Hydraulic silica-based binder, and water and heat resistant solidified body |
| JP2004299912A (en) * | 2003-03-28 | 2004-10-28 | Wakachiku Construction Co Ltd | Concrete for port and method for producing the same |
| JP2006224651A (en) * | 2005-01-20 | 2006-08-31 | Ube Ind Ltd | Application method of grout slurry |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4872224A (en) * | 1971-12-29 | 1973-09-29 | ||
| JPS61273908A (en) * | 1985-05-29 | 1986-12-04 | 石川島播磨重工業株式会社 | Continuous kneader for concrete |
| JPS6265959A (en) * | 1985-09-12 | 1987-03-25 | 第一綜合建設コンサルタント株式会社 | Mortar and concrete |
-
1989
- 1989-03-14 JP JP6142389A patent/JP2729267B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4872224A (en) * | 1971-12-29 | 1973-09-29 | ||
| JPS61273908A (en) * | 1985-05-29 | 1986-12-04 | 石川島播磨重工業株式会社 | Continuous kneader for concrete |
| JPS6265959A (en) * | 1985-09-12 | 1987-03-25 | 第一綜合建設コンサルタント株式会社 | Mortar and concrete |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11263661A (en) * | 1998-01-13 | 1999-09-28 | Nato Kenkyusho:Kk | Hydraulic silica-based binder, and water and heat resistant solidified body |
| JP2004299912A (en) * | 2003-03-28 | 2004-10-28 | Wakachiku Construction Co Ltd | Concrete for port and method for producing the same |
| JP4485136B2 (en) * | 2003-03-28 | 2010-06-16 | 若築建設株式会社 | Manufacturing method for port concrete |
| JP2006224651A (en) * | 2005-01-20 | 2006-08-31 | Ube Ind Ltd | Application method of grout slurry |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2729267B2 (en) | 1998-03-18 |
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| Date | Code | Title | Description |
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| LAPS | Cancellation because of no payment of annual fees |