JP3166097B2 - Cement-based dust-free hardening material - Google Patents
Cement-based dust-free hardening materialInfo
- Publication number
- JP3166097B2 JP3166097B2 JP15906994A JP15906994A JP3166097B2 JP 3166097 B2 JP3166097 B2 JP 3166097B2 JP 15906994 A JP15906994 A JP 15906994A JP 15906994 A JP15906994 A JP 15906994A JP 3166097 B2 JP3166097 B2 JP 3166097B2
- Authority
- JP
- Japan
- Prior art keywords
- cement
- slaked lime
- content
- water
- amount
- 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.)
- Expired - Fee Related
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
- 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
-
- 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
- C04B2111/00017—Aspects relating to the protection of the environment
Description
【０００１】[0001]
【産業上の利用分野】本発明は、セメント系無発塵型硬
化材に関し、特に、セメント系硬化材に適量の消石灰を
加えて、その消石灰にセメントの水硬性を抑制する働き
を持たせ得るようにし、他方で、土質を改良し得る機能
を持たせ得るようにしたセメント系無発塵型硬化材に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cement-based non-dusting hardening material, and more particularly to a method of adding an appropriate amount of slaked lime to a cement-based hardening material so that the slaked lime has a function of suppressing hydraulic property of cement. On the other hand, the present invention relates to a cement-based dust-free hardening material having a function of improving soil quality.
【０００２】[0002]
【従来の技術】従来から、セメント分を含有しており、
発塵防止加工を施した製品は、種々開発されてきた。そ
の一つは、粉体を加圧成形したブリケット品であり、他
の一つは、脂肪族多価アルコールを用いて、その表面を
コーチングした製品であり、他の一つは、テフロン系添
加材を用いてフィブリル化したものなどがある。ところ
が、粉体を加圧成形したブリケット品は、その散布時に
は発塵はないが、その素材の混合時に発塵する欠点があ
る。また、脂肪族多価アルコールを用いて、その表面を
コーチングした製品では、その製造工程が複雑であるた
め、経費がかかり過ぎて、その改善が必要であり、土と
の反応性も悪いなどの欠点がある。また、テフロン系添
加材を用いてフィブリル化したものでは、その製造工程
が複雑であるとともに高価な添加材を用いて経費がかか
り過ぎるので、その製品を高価にせざるを得ない。など
の欠点がある。2. Description of the Related Art Conventionally, cement has been contained,
Various products that have been subjected to dust generation prevention processing have been developed. One is a briquette product obtained by press-molding powder, the other is a product whose surface is coated using aliphatic polyhydric alcohol, and the other is a Teflon-based additive. And fibrillated materials. However, a briquette product obtained by press-molding powder does not generate dust when sprayed, but has a drawback that dust is generated when the material is mixed. In addition, a product whose surface is coated using an aliphatic polyhydric alcohol has a complicated manufacturing process, so that it is costly, requires improvement, and has poor reactivity with soil. There are drawbacks. Further, in the case of fibrillation using a Teflon-based additive, the production process is complicated and the cost is too high using an expensive additive, so that the product must be expensive. There are drawbacks such as.
【０００３】[0003]
【発明が解決しようとする課題】そこで、上述のような
従来の発塵防止加工を施したセメント系製品の種々の欠
点を排除し得るセメント系無発塵型硬化材を提供するこ
とを本発明の第一の目的とする。そもそも、セメントな
どの発塵性物質の発塵を抑制するためには、その発塵性
物質に水を加えて湿度を与えることが、例えば、薬品な
どを用いるような他の方法に比べて安価であることは知
られている。しかし、セメントは、水と練ることによ
り、硬化する特性がある。それを、水硬性と呼んでい
る。本発明は、セメントと水とを混練し、防塵効果を保
持しながら、セメントが水に接触して硬化する水硬性作
用を月単位の長期にわたり抑制し続けて、対象土と混合
した時には、セメント本来のポゾラン反応を行い、凝結
作用を起こす改良材を提供することを本発明の第二の目
的とする。また、セメントの水硬性を抑制する材料は沢
山あるが、中でも、セメントの水硬性抑制材として消石
灰を用いて、その消石灰にセメントの水硬性抑制材とし
ての機能と土質改良材としての機能を持たせるようにす
ることを本発明の第三の目的とする。そして、セメント
の水硬性抑制材として消石灰を用いる際のセメントと消
石灰との含有比をセメントの量／消石灰の量≦１．０な
る範囲にし、消石灰がセメントの硬化を抑制し得る機能
を高い水準で発揮し得るようにすることを本発明の第四
の目的とする。そして、セメントと消石灰と石膏と水と
により組成し、消石灰がセメントの硬化を抑制し、石膏
が強度を強め得るようにしたセメント系無発塵型硬化材
を提供することを本発明の第五の目的とする。そして、
本発明のセメントと消石灰とによる組成のセメント系無
発塵型硬化材に石膏を加えて土質改良材として使用した
時に、本発明のセメント系無発塵型硬化材に含まれてい
る石膏が、セメントの水硬性抑制材としての機能は、事
実上、無くて、土質改良材としての機能とともに強度の
強化機能を有するものであって、土質改良のための対象
土質の範囲を拡大し得るようにしたセメント系無発塵型
硬化材を提供することを本発明の第六の目的とする。SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a cement-based dust-free hardening material which can eliminate the various disadvantages of the conventional cement-based products subjected to dust-prevention processing as described above. The primary purpose of In the first place, in order to suppress dusting of dust-generating substances such as cement, it is inexpensive to add water to the dust-producing substances to give humidity, for example, compared to other methods using chemicals and the like. It is known that However, cement has a property of hardening when kneaded with water. It is called hydraulic. The present invention is to knead cement and water, while maintaining the dustproof effect, while continuing to suppress the hydraulic effect of cement hardening in contact with water for a long period of a month, when mixed with the target soil, It is a second object of the present invention to provide an improved material which carries out the original pozzolanic reaction and causes a coagulation action. In addition, there are many materials that suppress the hydraulic property of cement, but among them, slaked lime is used as a hydraulic property inhibitor of cement, and the slaked lime has a function as a hydraulic property inhibitor of cement and a function as a soil improvement material. It is a third object of the present invention to make this possible. And when using slaked lime as a hydraulic setting agent of cement, the content ratio of cement and slaked lime is set to the range of the amount of cement / the amount of slaked lime ≦ 1.0, and the function of slaked lime to suppress the hardening of the cement to a high level. It is a fourth object of the present invention to be able to exhibit the above. A fifth aspect of the present invention is to provide a cement-based dust-free hardening material composed of cement, slaked lime, gypsum and water, wherein slaked lime suppresses hardening of the cement and gypsum can increase the strength. The purpose of. And
Gypsum contained in the cement-based dust-free hardening material of the present invention, when used as a soil-improving material by adding gypsum to the cement-based dust-free hardening material of the composition of the cement and slaked lime of the present invention, The function of the cement as a hydraulic setting material is practically nonexistent, and has the function of strengthening the strength together with the function as a soil improvement material, so that the range of the target soil for the soil improvement can be expanded. It is a sixth object of the present invention to provide a cement-based dust-free hardening material as described above.
【０００４】[0004]
【課題を解決するための手段】本発明は、セメントと消
石灰と水とにより組成し、セメントと消石灰の混合比に
おいて、セメントの量を消石灰の量より少なくし、消石
灰がセメントの硬化を抑制し得るようにしたセメント系
無発塵型硬化材である。SUMMARY OF THE INVENTION The present invention provides a composition comprising cement, slaked lime and water, in which the amount of cement is smaller than the amount of slaked lime in the mixing ratio of cement and slaked lime, and slaked lime suppresses the hardening of the cement. It is a cement-based dust-free hardening material that was obtained.
【０００５】[0005]
【作用】本発明は、セメントと消石灰と水とにより組成
し、セメントと消石灰の混合比において、セメントの量
を消石灰の量より少なくし、消石灰がセメントの硬化を
抑制し得るようにしたセメント系無発塵型硬化材であ
り、消石灰自体が土質改良材としての働きがあるから、
そのセメントの水硬性を抑制する働きと消石灰自体が土
質改良材としての働きの二つの働きを持つ。さらに、建
設現場での土質改良のみならず、その他の領域において
も、本発明のセメント系無発塵型硬化材を活用し得る。
また、本発明のセメント系無発塵型硬化材は、セメント
と水との組成に消石灰を加えたセメントと消石灰と水と
による組成にしたために、上記の働きを奏し得るのであ
るが、その働きをより効果的にするためには、セメント
と消石灰と水との組成の比率が重要である。そこで、セ
メントと消石灰との組成の比率は、少なくとも、セメン
トの量より消石灰の量を多くすると効果的である。The present invention relates to a cement system comprising cement, slaked lime and water, wherein the amount of cement is smaller than the amount of slaked lime in the mixing ratio of cement and slaked lime so that slaked lime can suppress the hardening of the cement. Because it is a dust-free hardening material, slaked lime itself has the function of a soil improvement material,
The function of suppressing the hydraulic property of the cement and the slaked lime itself have two functions, that is, as a soil improvement material. Further, the cement-based dust-free hardening material of the present invention can be used not only in soil improvement at construction sites but also in other areas.
In addition, the cement-based dust-free hardening material of the present invention can perform the above-described function because the composition is made of cement, slaked lime, and water in which slaked lime is added to the composition of cement and water. In order to make the cement more effective, the composition ratio of cement, slaked lime and water is important. Therefore, it is effective that the composition ratio between cement and slaked lime is at least larger than that of cement.
【０００６】[0006]
【実施例１】本発明は、セメントと消石灰と水とにより
組成し、セメントの含有量を５０％以下にし、消石灰の
含有量を４０％以上にし、セメントと消石灰との含有比
をセメントの量／消石灰の量≦１．０なる範囲にし、消
石灰がセメントの硬化を抑制することを特徴にしたセメ
ント系無発塵型硬化材である。[Embodiment 1] The present invention comprises cement, slaked lime and water, the content of cement is set to 50% or less, the content of slaked lime is set to 40% or more, and the content ratio of cement to slaked lime is determined by the amount of cement. / Amount of slaked lime ≦ 1.0, and is a cement-based dust-free hardening material characterized in that slaked lime suppresses hardening of cement.
【０００７】[0007]
【実施例２】本発明は、セメントと消石灰と石膏と水と
により組成し、それらの組成物の個々の含有率について
は、セメントの含有量を５％乃至５０％にし、消石灰の
含有量を４０％乃至９０％にし、石膏の含有量を２５％
以下にし、水の含有量を１０％乃至３０％にし、セメン
トと消石灰との含有比をセメントの量／消石灰の量≦
１．０なる範囲にし、消石灰がセメントの硬化を抑制し
得る機能を有し、石膏が強度を強める機能を有し得るよ
うにしたセメント系無発塵型硬化材である。Embodiment 2 The present invention is composed of cement, slaked lime, gypsum and water. Regarding the individual contents of these compositions, the content of cement is set to 5% to 50%, and the content of slaked lime is reduced. 40% to 90%, gypsum content 25%
And below, the water content was 10% to 30%, the amount ≦ amount / hydrated lime content ratio of cement of cement and hydrated lime
1.0 is a cement-based dust-free hardening material in which slaked lime has a function of suppressing hardening of cement and gypsum can have a function of increasing strength.
【０００８】[0008]
【実施例３】本発明は、セメントと消石灰と石膏と水と
により組成し、それらの組成物の個々の含有率について
は、セメントの含有量を５％乃至５０％にし、消石灰の
含有量を４０％乃至９０％にし、石膏の含有量を２５％
以下にし、水の含有量を１０％乃至３０％にし、水に
０．０５％乃至０．１％の凝結遅延剤を含ませてなり、
セメントと消石灰との含有比をセメントの量／消石灰の
量≦１．０なる範囲にし、消石灰がセメントの硬化を抑
制し得る機能を有し、石膏が強度を強める機能を有し得
るようにしたセメント系無発塵型硬化材である。Embodiment 3 The present invention is composed of cement, slaked lime, gypsum and water. Regarding the individual contents of these compositions, the content of cement is adjusted to 5% to 50%, and the content of slaked lime is adjusted. 40% to 90%, gypsum content 25%
Below , the content of water is 10% to 30%, and the water contains 0.05% to 0.1% of a setting retarder,
The content ratio of cement and slaked lime was set in the range of the amount of cement / the amount of slaked lime ≦ 1.0, and slaked lime had a function of suppressing the hardening of the cement, and gypsum had a function of increasing the strength. It is a cement-based dust-free hardening material.
【０００９】[0009]
【実施例４】本発明は、セメントと消石灰と二水石膏と
水とにより組成し、それらの組成物の個々の含有率につ
いては、セメントの含有量を５％乃至５０％にし、消石
灰の含有量を４０％乃至９０％にし、二水石膏の含有量
を２５％以下にし、水の含有量を１０％乃至３０％に
し、セメントと消石灰との含有比をセメントの量／消石
灰の量≦１．０なる範囲にし、消石灰がセメントの硬化
を抑制し得る機能を有し、二水石膏が強度を強める機能
を有し得るようにしたセメント系無発塵型硬化材であ
る。Embodiment 4 The present invention is composed of cement, slaked lime, gypsum and water, and the content of each of these compositions is adjusted to 5% to 50% of the cement. The amount is 40% to 90%, the content of gypsum is 25% or less, the content of water is 10% to 30%, and the content ratio of cement to slaked lime is the amount of cement / the amount of slaked lime ≦ 1. 0.0 is a cement-based dust-free hardening material in which slaked lime has a function of suppressing hardening of cement and gypsum has a function of increasing strength.
【００１０】[0010]
【実施例５】本発明は、セメントと消石灰と二水石膏と
水とにより組成し、それらの組成物の個々の含有率につ
いては、セメントの含有量を５％乃至５０％にし、消石
灰の含有量を４０％乃至９０％にし、二水石膏の含有量
を２５％以下にし、水の含有量を１０％乃至３０％に
し、水に０．０５％乃至０．１％の凝結遅延剤を含ませ
てなり、セメントと消石灰との含有比をセメントの量／
消石灰の量≦１．０なる範囲にし、消石灰がセメントの
硬化を抑制し得る機能を有し、二水石膏が強度を強める
機能を有し得るようにしたセメント系無発塵型硬化材で
ある。Embodiment 5 The present invention is composed of cement, slaked lime, gypsum and water, and the content of each of these compositions is adjusted to 5% to 50% of cement. The content should be 40% to 90%, the gypsum content should be less than 25% , the water content should be 10% to 30%, and the water should contain 0.05% to 0.1% setting retarder. The content ratio of cement and slaked lime is calculated by the amount of cement /
It is a cement-based dust-free hardening material in which the amount of slaked lime ≦ 1.0, slaked lime has a function of suppressing hardening of cement, and gypsum dihydrate can have a function of increasing strength. .
【００１１】[0011]
【実施例６】本発明は、セメントと消石灰と水とにより
組成し、セメントの含有量を５０％以下にし、消石灰の
含有量を４０％以上にし、水の含有量を１０％乃至３０
％にし、セメントと消石灰との含有比をセメントの量／
消石灰の量≦１．０なる範囲にし、消石灰がセメントの
硬化を抑制し得るようにし、水の含有量を１０％乃至３
０％の範囲で使用して、飛散量を少なくしていくことを
特徴にしたセメント系無発塵型硬化材である。Embodiment 6 The present invention is composed of cement, slaked lime and water. The cement content is 50% or less, the slaked lime content is 40% or more, and the water content is 10% to 30%.
% And the content ratio of cement and slaked lime
The amount of slaked lime should be within a range of ≦ 1.0 so that the slaked lime can suppress the hardening of the cement, and the water content is 10% to 3%.
It is a cement-based dust-free hardening material characterized in that it is used in a range of 0% to reduce the amount of scattering.
【００１２】[0012]
【実施例７】本発明は、セメントと消石灰と水とにより
組成し、セメントの含有量を５０％以下にし、消石灰の
含有量を４０％以上にし、セメントと消石灰との含有比
をセメントの量／消石灰の量≦１．０なる範囲にし、消
石灰がセメントの硬化を月単位で長期にわたり抑制する
ことにより、安定化を可能にしたセメント系無発塵型硬
化材であって、上記の構成要件のセメント系無発塵型硬
化材のセメントと消石灰との含有比が安定化を可能にす
るところに至るまでに試験を重ね、そのセメントと消石
灰の各成分の含有量を変えることにより、上記の含有量
の範囲を得るに至った安定性又は保存性試験方法を下に
述べると、固化材用セメント１．２Ｋｇ、消石灰２．８
Ｋｇを採取し、ソイルミキサーで３分間、混合した後、
水道水を７２０ｇを加え、さらに、５分間、混合した。
そして、それを用いてＸ線解析をして、安定性又は保存
性試験について調べてみると下記の通りである。水の量
を一定にし、セメントと消石灰の量の組成比を４種類に
変えて試験してみた。 [Embodiment 7] The present invention comprises cement, slaked lime and water, the content of cement being 50% or less, the content of slaked lime being 40% or more, and the content ratio of cement and slaked lime to the amount of cement. / Amount of slaked lime ≦ 1.0, and is a cement-based dust-free hardening material capable of being stabilized by slaked lime suppressing the hardening of the cement for a long period of time on a monthly basis. By repeating the test up to the point where the content ratio of cement and slaked lime of the cement-based dust-free hardening material enables stabilization, by changing the content of each component of the cement and slaked lime, Stability or storage test methods for obtaining the content range are described below: 1.2 kg of cement for solidifying material, hydrated lime of 2.8.
After collecting Kg and mixing with a soil mixer for 3 minutes,
720 g of tap water was added and mixed for another 5 minutes.
Then, X-ray analysis is performed using the same to examine the stability or storage test. The test was conducted by changing the composition ratio of cement and slaked lime to four types with the amount of water kept constant.
【００１３】[0013]
【実施例８】本発明は、セメントと消石灰と石膏と水と
により組成し、それらの組成物の個々の含有率について
は、セメントの含有量を３０％にし、消石灰の含有量を
４０％にし、石膏の含有量を１２％にし、水の含有量を
１８％にし、消石灰がセメントの硬化を抑制し得る機能
を有し、石膏が強度を強める機能を有し得るようにした
セメント系無発塵型硬化材である。そして、上記のセメ
ントと消石灰と石膏と水との組成比が、上記のような比
率の本発明のセメント系無発塵型硬化材の組成物のもの
と特開平５−２２２３６６に記載の既製品の組成物のも
のとを比較するのであるが、その飛散率を比較すると、
特開平５−２２２３６６に記載の既製品の組成物の飛散
率に比較して、本発明のセメント系無発塵型硬化材の組
成物の飛散率が、低くて、本発明のセメント系無発塵型
硬化材の組成物の飛散率が、特開平５−２２２３６６に
記載の既製品の組成物の飛散率即ち既製品の組成物の飛
散率より優れていることを示している飛散率の表を下に
示す。また、水分の量を変えることにより水分の量と飛
散率との関係を示した表であるが、その飛散率は、水分
の量を変えたとしても、既製品の組成物の飛散率より、
本発明のセメント系無発塵型硬化材の組成物の飛散率
が、低くて、本発明のセメント系無発塵型硬化材の組成
物が、特開平５−２２２３６６に記載の既製品の組成物
より飛散しにくいことを証明している。そこで、それら
の組成物の水分の量と飛散率との関係を示した表を下に
示す。そして、図２で示された飛散試験に使用される飛
散量の測定器の左側の取入口から供給させた飛散試験用
の発塵型硬化材の組成物の全量をＳで表し、下方への落
下量をＤで表し、上方に飛散する飛散量をＳ−Ｄで表す
と、飛散率（％）は、下式で表される。 飛散率（％）＝［（Ｓ−Ｄ）／Ｓ］×１００ 飛散試験の際の風速は、３メートル／秒 である。 Embodiment 8 The present invention is composed of cement, slaked lime, gypsum and water. With respect to the individual contents of these compositions, the cement content is 30% and the slaked lime content is 40%. A cement-based unfired cement having a gypsum content of 12%, a water content of 18%, slaked lime having a function of suppressing hardening of cement, and gypsum having a function of increasing strength. It is a dust hardening material. Then, the composition ratio of the cement, slaked lime, gypsum, and water is the above-mentioned composition of the cement-based dust-free hardening material of the present invention and the ready-made product described in JP-A-5-222366. It is compared with that of the composition of, but comparing the scattering rate,
Compared to the scattering rate of the ready-to-use composition described in JP-A-5-222366, the scattering rate of the composition of the cement-based dust-free hardening material of the present invention is low, A scattering rate table showing that the scattering rate of the composition of the dust-type hardening material is superior to the scattering rate of the ready-made composition described in JP-A-5-222366, that is, the scattering rate of the ready-made composition. Is shown below. Also, a table showing the relationship between the amount of moisture and the scattering rate by changing the amount of moisture, the scattering rate, even if the amount of moisture is changed, from the scattering rate of the ready-made composition,
The scattering rate of the composition of the cement-based dust-free hardening material of the present invention is low, and the composition of the cement-based dust-free hardening material of the present invention is the ready-to-use composition described in JP-A-5-222366. It proves that it is harder to fly than objects. Therefore, a table showing the relationship between the amount of water and the scattering rate of those compositions is shown below. Then, the total amount of the composition of the dust hardening material for the scattering test supplied from the inlet on the left side of the measuring device of the scattering amount used in the scattering test shown in FIG. When the falling amount is represented by D and the upward scattering amount is represented by SD, the scattering rate (%) is represented by the following equation. Flying rate (%) = [(SD) / S] × 100 The wind speed at the time of the flying test is 3 meters / second.
【００１４】[0014]
【実施例９】本発明は、セメントと消石灰と石膏と水と
により組成し、それらの組成物の個々の含有率について
は、セメントの含有量を３０％にし、消石灰の含有量を
４０％にし、石膏の含有量を１２％にし、水の含有量を
１８％にし、消石灰がセメントの硬化を抑制し得る機能
を有し、石膏が強度を強める機能を有し得るようにした
セメント系無発塵型硬化材である。そして、上記のセメ
ントと消石灰と石膏と水との組成比が、上記のような比
率の本発明のセメント系無発塵型硬化材の組成物のもの
と特開平５−２２２３６６に記載の既製品の組成物のも
のとを比較することにより、本発明のセメント系無発塵
型硬化材の改良効果を明瞭に示すことが出来る。そこ
で、本発明のセメント系無発塵型硬化材の改良効果の試
験は、本発明のセメント系無発塵型硬化材の組成が、セ
メントの含有量を３０％にし、消石灰の含有量を４０％
にし、石膏の含有量を１２％にし、水の含有量を１８％
にしたものを混練して用い、リッターモールドを用い、
成形後、一週間の時点で、一軸圧強度を測定した。そし
て、ローム質粘土と砂質土と有機質土を対象土にして本
発明のセメント系無発塵型硬化材の改良効果を図２と図
３と図４で示した。Embodiment 9 The present invention is composed of cement, slaked lime, gypsum and water. With respect to the individual contents of these compositions, the cement content is 30% and the slaked lime content is 40%. A cement-based unfired cement having a gypsum content of 12%, a water content of 18%, slaked lime having a function of suppressing hardening of cement, and gypsum having a function of increasing strength. It is a dust hardening material. Then, the composition ratio of the cement, slaked lime, gypsum, and water is the above-mentioned composition of the cement-based dust-free hardening material of the present invention and the ready-made product described in JP-A-5-222366. By comparing with the composition of the present invention, the effect of improving the cement-based dust-free hardening material of the present invention can be clearly shown. Therefore, a test of the improvement effect of the cement-based dust-free hardening material of the present invention shows that the composition of the cement-based dust-free hardening material of the present invention has a cement content of 30% and a slaked lime content of 40%. %
And the gypsum content to 12% and the water content to 18%
Kneaded and used, using a liter mold,
One week after the molding, the uniaxial pressure strength was measured. FIG. 2, FIG. 3, and FIG. 4 show the improvement effect of the cement-based dust-free hardening material of the present invention for loam clay, sandy soil, and organic soil.
【００１５】[0015]
【効果】本発明は、セメントと消石灰と水とにより組成
し、セメントと消石灰の混合比において、セメントの量
を消石灰の量より少なくし、消石灰がセメントの硬化を
抑制し得るようにしたセメント系無発塵型硬化材であ
り、消石灰自体が土質改良材としての働きがあるから、
そのセメントの水硬性を抑制する働きと消石灰自体が土
質改良材としての働きの二つの働きを持つ建設現場での
土質改良のみならず、その他の領域においても、本発明
のセメント系無発塵型硬化材を活用し得るなどの効果が
ある。そして、セメントと水との組成は、セメントに水
を加えると硬化するという性質の下にセメントと水との
組成を組むのであるが、それは、また、塵や埃のように
飛散し易いセメントを確実に飛散させないようにし得る
のであり、そのセメントと水との組成に消石灰を加えた
セメントと消石灰と水とによる組成にしたために、上記
の働きを奏し得るのであるが、その働きをより効果的に
するためには、セメントと消石灰と水との組成の比率が
重要である。そこで、セメントと消石灰との組成の比率
は、少なくとも、セメントの量より消石灰の量を多くす
ると効果的であるなどの効果がある。The present invention provides a cement-based cement composition comprising cement, slaked lime and water, wherein the amount of cement is smaller than the amount of slaked lime in the mixing ratio of cement and slaked lime so that slaked lime can suppress the hardening of the cement. Because it is a dust-free hardening material, slaked lime itself has the function of a soil improvement material,
The cement-based dust-free type of the present invention is not only used in soil improvement at construction sites where the function of suppressing the hydraulic property of the cement and the slaked lime itself serves as a soil improvement material, but also in other areas. There are effects such as the use of a hardening material. And the composition of cement and water forms the composition of cement and water under the property of hardening when water is added to the cement, but it also makes the cement easy to fly like dust and dust. It is possible to reliably prevent scattering, and because the composition of the cement and slaked lime and water added slaked lime to the composition of the cement and water, the above function can be achieved, but the function is more effective In order to achieve this, the composition ratio of cement, slaked lime and water is important. Therefore, the composition ratio between the cement and the slaked lime has an effect such that it is effective to increase the amount of the slaked lime at least more than the amount of the cement.
【図１】水分の量を変えて飛散量の変化状態を調べ、飛
散率と水分の量の変化の関係を表にして、その表から水
分の量と飛散率との関係を出して示した図である。FIG. 1 shows the relationship between the scattering rate and the change in the amount of water by examining the state of change in the amount of scattering by changing the amount of water, and shows the relationship between the amount of water and the rate of scattering from the table. FIG.
【図２】飛散試験に使用される飛散量の測定器の概念図
である。FIG. 2 is a conceptual diagram of a measuring device of a scattering amount used in a scattering test.
【図３】本発明のセメント系無発塵型硬化材の改良効果
をローム質粘土を対象土にして特開平５−２２２３６６
に記載の既防塵改良材との対比で示した強度図である。FIG. 3 shows the effect of improving the cement-based dust-free hardening material of the present invention by using loamy clay as a target soil.
FIG. 4 is a strength diagram shown in comparison with a dust-proofing improving material described in FIG.
【図４】本発明のセメント系無発塵型硬化材の改良効果
を砂質土を対象土にして特開平５−２２２３６６に記載
の既防塵改良材との対比で示した強度図である。FIG. 4 is a strength diagram showing the improvement effect of the cement-based dust-free hardening material of the present invention in comparison with a dust-proofing improvement material described in JP-A-5-222366 for sandy soil.
【図５】本発明のセメント系無発塵型硬化材の改良効果
を有機質土を対象土にして特開平５−２２２３６６に記
載の既防塵改良材との対比で示した強度図である。FIG. 5 is a strength diagram showing the improvement effect of the cement-based dust-free hardening material of the present invention in comparison with a dust-proofing improvement material described in Japanese Patent Application Laid-Open No. 5-222366 for organic soil.
【図６】実施例８の記載で、本発明は、セメントと消石
灰と水とにより組成し、セメントの含有量を５０％以下
にし、消石灰の含有量を４０％以上にし、セメントと消
石灰との含有比をセメントの量／消石灰の量≦１．０な
る範囲にした根拠を示す安定性又は保存性試験におい
て、水の量を一定にし、セメントと消石灰の量の組成比
を４種類に変えて試験した。そして、セメントと消石灰
と水との組成比が、３０対７０対１８の組成比のＸ線解
析図であって混練直後のＸ線解析図である。FIG. 6 shows the description of Example 8 that the present invention is composed of cement, slaked lime and water, the content of cement is 50% or less, the content of slaked lime is 40% or more, and the cement and slaked lime are mixed. In a stability or storage test showing the basis for setting the content ratio to the range of the amount of cement / the amount of slaked lime ≦ 1.0, the amount of water was kept constant, and the composition ratio of the amount of cement and slaked lime was changed to four. Tested. The composition ratio of cement, slaked lime and water is an X-ray analysis diagram of a composition ratio of 30:70:18, which is an X-ray analysis diagram immediately after kneading.
【図７】図６のセメントと消石灰と水との組成比が、３
０対７０対１８の組成比のＸ線解析図であって、混練直
後から１ケ月経過した後のＸ線解析図である。FIG. 7 shows that the composition ratio of cement, slaked lime and water in FIG.
FIG. 3 is an X-ray analysis diagram of a composition ratio of 0:70:18, which is one month after immediately after kneading.
【図８】実施例８の記載で、本発明は、セメントと消石
灰と水とにより組成し、セメントの含有量を５０％以下
にし、消石灰の含有量を４０％以上にし、セメントと消
石灰との含有比をセメントの量／消石灰の量≦１．０な
る範囲にした根拠を示す安定性又は保存性試験におい
て、水の量を一定にし、セメントと消石灰の量の組成比
を４種類に変えて試験した。そして、セメントと消石灰
と水との組成比が、５０対５０対１８の組成比のＸ線解
析図であって混練直後のＸ線解析図である。FIG. 8 shows the description of Example 8 that the present invention comprises cement, slaked lime and water, the content of cement is 50% or less, the content of slaked lime is 40% or more, and the cement and slaked lime are mixed. In a stability or storage test showing the basis for setting the content ratio to the range of the amount of cement / the amount of slaked lime ≦ 1.0, the amount of water was kept constant, and the composition ratio of the amount of cement and slaked lime was changed to four. Tested. FIG. 4 is an X-ray analysis diagram of a composition ratio of cement, slaked lime, and water of 50:50:18, which is an X-ray analysis diagram immediately after kneading.
【図９】図８のセメントと消石灰と水との組成比が、５
０対５０対１８の組成比のＸ線解析図であって、混練直
後から１ケ月経過した後のＸ線解析図である。FIG. 9 shows that the composition ratio of cement, slaked lime and water in FIG.
FIG. 7 is an X-ray analysis diagram of a composition ratio of 0:50:18, which is one month after immediately after kneading.
【図１０】実施例８の記載で、本発明は、セメントと消
石灰と水とにより組成し、セメントの含有量を５０％以
下にし、消石灰の含有量を４０％以上にし、セメントと
消石灰との含有比をセメントの量／消石灰の量≦１．０
なる範囲にした根拠を示す安定性又は保存性試験におい
て、水の量を一定にし、セメントと消石灰の量の組成比
を４種類に変えて試験した。そして、セメントと消石灰
と水との組成比が、７０対３０対１８の組成比のＸ線解
析図であって混練直後のＸ線解析図である。FIG. 10 shows the description of Example 8 that the present invention comprises cement, slaked lime, and water to reduce the content of cement to 50% or less, the content of slaked lime to 40% or more, and the cement and slaked lime. The content ratio is defined as the amount of cement / the amount of slaked lime ≦ 1.0.
In the stability or preservation test showing the grounds within a certain range, the amount of water was kept constant and the composition ratio of cement and slaked lime was changed to four kinds. FIG. 7 is an X-ray analysis diagram of a composition ratio of cement, slaked lime, and water of 70:30:18, which is an X-ray analysis diagram immediately after kneading.
【図１１】図１０のセメントと消石灰と水との組成比
が、７０対３０対１８の組成比のＸ線解析図であって、
混練直後から３日経過した後のＸ線解析図である。11 is an X-ray analysis diagram of a composition ratio of cement, slaked lime, and water of FIG. 10 of 70:30:18,
FIG. 3 is an X-ray analysis diagram after three days have elapsed immediately after kneading.
【図１２】実施例８の記載で、本発明は、セメントと消
石灰と水とにより組成し、セメントの含有量を５０％以
下にし、消石灰の含有量を４０％以上にし、セメントと
消石灰との含有比をセメントの量／消石灰の量≦１．０
なる範囲にした根拠を示す安定性又は保存性試験におい
て、水の量を一定にし、セメントと消石灰の量の組成比
を４種類に変えて試験した。そして、セメントと消石灰
と水との組成比が、１００対０対１８の組成比のＸ線解
析図であって混練直後のＸ線解析図である。FIG. 12 shows that in the description of Example 8, the present invention is composed of cement, slaked lime and water, the content of cement is set to 50% or less, and the content of slaked lime is set to 40% or more. The content ratio is defined as the amount of cement / the amount of slaked lime ≦ 1.0.
In the stability or preservation test showing the grounds within a certain range, the amount of water was kept constant and the composition ratio of cement and slaked lime was changed to four kinds. And it is an X-ray analysis figure of the composition ratio of cement, slaked lime, and water of 100: 0: 18, and is an X-ray analysis figure immediately after kneading.
【図１３】図１２のセメントと消石灰と水との組成比
が、１００対０対１８の組成比のＸ線解析図であって、
混練直後から７日経過した後のＸ線解析図である。FIG. 13 is an X-ray analysis diagram of a composition ratio of cement, slaked lime, and water in FIG. 12 at a composition ratio of 100: 0: 18,
It is an X-ray analysis figure after 7 days have passed immediately after kneading.
１ 飛散量の測定器 ２ 飛散量の測定
器の左側の取入口 ３ 飛散量の測定器の落下体の受部 ４ 可撓性管と飛
散体の受部との結合部 ５ 飛散体の受部への可撓性管 ６ 落下体の受部
の着脱自在の結合部 ７ 飛散量の測定器の右側の開口部 ８ 可撓性管と飛
散量の測定器との結合部 ９ 飛散量の測定器の飛散体の受部DESCRIPTION OF REFERENCE NUMERALS 1 Scatter amount measuring device 2 Inlet on left side of scattering amount measuring device 3 Receiving part of falling object of scattering amount measuring device 4 Joining part of flexible tube and receiving part of scattering object 5 Receiving part of scattering object 6 Flexible tube for dropping body 6 Removable joint for receiving part of falling object 7 Opening on right side of scatter amount measuring device 8 Joint between flexible tube and scatter amount measuring device 9 Scatter amount measuring device Receiving part of the flying object
───────────────────────────────────────────────────── フロントページの続き (72)発明者 秋野 良雄 東京都中央区新川一丁目８番６号 秩父 石灰工業株式会社内 (58)調査した分野(Int.Cl.7，ＤＢ名) C04B 7/00 - 28/36 C09K 17/00 E02D 3/00 ──────────────────────────────────────────────────続 き Continued from the front page (72) Yoshio Akino, Inventor 1-8-6 Shinkawa, Chuo-ku, Tokyo Chichibu Lime Industry Co., Ltd. (58) Field surveyed (Int. Cl. 7 , DB name) C04B 7 / 00-28/36 C09K 17/00 E02D 3/00
Claims (11)
メントと消石灰の混合比において、セメントの量を消石
灰の量より少なくし、消石灰がセメントの硬化を抑制し
得るようにしたセメント系無発塵型硬化材。1. A cement-based non-foaming composition comprising cement, slaked lime and water, wherein the amount of cement is smaller than the amount of slaked lime in the mixing ratio of cement and slaked lime so that slaked lime can suppress hardening of the cement. Dust hardening material.
メントと消石灰の混合比において、セメントの量を消石
灰の量より少なくし、消石灰がセメントの硬化を抑制し
得る機能とともに消石灰が土質改良材としての機能を有
し得るようにした請求項１記載のセメント系無発塵型硬
化材。2. A composition comprising cement, slaked lime and water, wherein the mixing ratio of cement and slaked lime is such that the amount of cement is smaller than the amount of slaked lime, slaked lime has a function of suppressing hardening of the cement, and slaked lime is a soil improving material. The cement-based dust-free hardening material according to claim 1, wherein the hardening material has a function as a cement.
メントの含有量を５０％以下にし、消石灰の含有量を４
０％以上にし、セメントと消石灰との含有比をセメント
の量／消石灰の量≦１．０なる範囲にし、消石灰がセメ
ントの硬化を抑制することを特徴にした請求項１記載の
セメント系無発塵型硬化材。3. A composition comprising cement, slaked lime and water, wherein the content of cement is 50% or less and the content of slaked lime is 4%.
2. A cementitious unfired cement according to claim 1, wherein the content of cement and slaked lime is set to 0% or more, and the content ratio of cement to slaked lime is within a range of ≦ 1.0, and slaked lime suppresses hardening of the cement. Dust hardening material.
メントの含有量を５０％以下にし、消石灰の含有量を４
０％以上にし、水の含有量を１０％乃至３０％にし、セ
メントと消石灰との含有比をセメントの量／消石灰の量
≦１．０なる範囲にし、消石灰がセメントの硬化を抑制
し得るようにした請求項１記載のセメント系無発塵型硬
化材。4. A composition comprising cement, slaked lime and water, wherein the cement content is 50% or less and the slaked lime content is 4%.
0% or more, the water content is 10% to 30%, and the content ratio of cement and slaked lime is in the range of cement amount / slaked lime amount ≦ 1.0, so that slaked lime can suppress cement hardening. The cement-based dust-free hardening material according to claim 1,
し、消石灰がセメントの硬化を抑制し石膏が強度を強め
得る請求項１記載のセメント系無発塵型硬化材。5. The cement-based dust-free hardening material according to claim 1, which is composed of cement, slaked lime, gypsum and water, wherein slaked lime suppresses hardening of the cement and gypsum can increase the strength.
し、セメントの含有量を５０％以下にし、消石灰の含有
量を４０％以上にし、セメントと消石灰との含有比をセ
メントの量／消石灰の量≦１．０なる範囲にし、消石灰
がセメントの硬化を抑制し、石膏が強度を強めた請求項
１記載のセメント系無発塵型硬化材。6. A composition comprising cement, slaked lime, gypsum and water, wherein the content of cement is not more than 50%, the content of slaked lime is not less than 40%, and the content ratio of cement to slaked lime is the ratio of cement amount / slaked lime. The cement-based dust-free hardening material according to claim 1, wherein slaked lime suppresses hardening of the cement and gypsum increases the strength.
し、それらの組成物の個々の含有率については、セメン
トの含有量を５％乃至５０％にし、消石灰の含有量を４
０％乃至９０％にし、石膏の含有量を２５％以下にし、
水の含有量を１０％乃至３０％にし、セメントと消石灰
との含有比をセメントの量／消石灰の量≦１．０なる範
囲にし、消石灰がセメントの硬化を抑制し得る機能を有
し、石膏が強度を強める機能を有し得る請求項１記載の
セメント系無発塵型硬化材。7. A composition comprising cement, slaked lime, gypsum, and water. Regarding the content of each of these compositions, the content of cement is set to 5% to 50% and the content of slaked lime is set to 4%.
0% to 90%, the content of gypsum to 25% or less ,
The content of water is 10% to 30%, the content ratio of cement and slaked lime is in the range of cement amount / slaked lime amount ≦ 1.0, and slaked lime has a function of suppressing hardening of cement, and gypsum. The cement-based dust-free hardening material according to claim 1, wherein the hardening material has a function of increasing strength.
し、それらの組成物の個々の含有率については、セメン
トの含有量を５％乃至５０％にし、消石灰の含有量を４
０％乃至９０％にし、石膏の含有量を２５％以下にし、
水の含有量を１０％乃至３０％にし、水に０．０５％乃
至０．１％の凝結遅延剤を含ませてなり、セメントと消
石灰との含有比をセメントの量／消石灰の量≦１．０な
る範囲にし、消石灰がセメントの硬化を抑制し得る機能
を有し、石膏が強度を強める機能を有し得るようにした
請求項１記載のセメント系無発塵型硬化材。8. A composition comprising cement, slaked lime, gypsum, and water. Regarding the individual contents of these compositions, the content of cement is set to 5% to 50% and the content of slaked lime is set to 4%.
0% to 90%, the content of gypsum to 25% or less ,
The content of water is 10% to 30%, and water contains 0.05% to 0.1% of a setting retarder, and the content ratio of cement to slaked lime is set to the amount of cement / the amount of slaked lime ≦ 1. 2. The cement-based dust-free hardening material according to claim 1, wherein slaked lime has a function of suppressing hardening of cement, and gypsum can have a function of increasing strength.
組成し、消石灰がセメントの硬化を抑制し、二水石膏が
強度を強めることに生かし得るようにした請求項１記載
のセメント系無発塵型硬化材。9. A cementitious composition according to claim 1, wherein the composition comprises cement, slaked lime, dihydrate gypsum and water, wherein slaked lime suppresses hardening of the cement and gypsum dihydrate can be used to increase the strength. Dust hardening material.
り組成し、それらの組成物の個々の含有率については、
セメントの含有量を５％乃至５０％にし、消石灰の含有
量を４０％乃至９０％にし、二水石膏の含有量を２５％
以下にし、水の含有量を１０％乃至３０％にし、セメン
トと消石灰との含有比をセメントの量／消石灰の量≦
１．０なる範囲にし、消石灰がセメントの硬化を抑制し
得る機能を有し、二水石膏が強度を強める機能を有し得
るようにした請求項１記載のセメント系無発塵型硬化
材。10. A composition comprising cement, slaked lime, gypsum and water, and the individual contents of these compositions are as follows:
The content of cement is 5% to 50%, the content of slaked lime is 40% to 90%, and the content of gypsum dihydrate is 25%
And below, the water content was 10% to 30%, the amount ≦ amount / hydrated lime content ratio of cement of cement and hydrated lime
The cement-based dustless hardening material according to claim 1, wherein slaked lime has a function of suppressing hardening of cement, and gypsum has a function of increasing strength.
り組成し、それらの組成物の個々の含有率については、
セメントの含有量を５％乃至５０％にし、消石灰の含有
量を４０％乃至９０％にし、二水石膏の含有量を２５％
以下にし、水の含有量を１０％乃至３０％にし、水に
０．０５％乃至０．１％の凝結遅延剤を含み、セメント
と消石灰との含有比をセメントの量／消石灰の量≦１．
０なる範囲にし、消石灰がセメントの硬化を抑制し得る
機能を有し、二水石膏が強度を強める機能を有し得るよ
うにした請求項１記載のセメント系無発塵型硬化材。11. A composition comprising cement, slaked lime, gypsum and water, and the individual contents of these compositions are as follows:
The content of cement is 5% to 50%, the content of slaked lime is 40% to 90%, and the content of gypsum dihydrate is 25%
The content of water is from 10% to 30%, the water contains 0.05% to 0.1% of a setting retarder, and the content ratio of cement to slaked lime is as follows: the amount of cement / the amount of slaked lime ≦ 1 .
2. The cement-based dust-free hardening material according to claim 1, wherein slaked lime has a function of suppressing hardening of cement, and gypsum dihydrate has a function of increasing strength.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15906994A JP3166097B2 (en) | 1994-06-08 | 1994-06-08 | Cement-based dust-free hardening material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15906994A JP3166097B2 (en) | 1994-06-08 | 1994-06-08 | Cement-based dust-free hardening material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07330393A JPH07330393A (en) | 1995-12-19 |
| JP3166097B2 true JP3166097B2 (en) | 2001-05-14 |
Family
ID=15685544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15906994A Expired - Fee Related JP3166097B2 (en) | 1994-06-08 | 1994-06-08 | Cement-based dust-free hardening material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3166097B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7119349B1 (en) | 2003-01-31 | 2006-10-10 | Kabushiki Kaisha Kobe Seiko Sho | Concrete cask and method for manufacturing thereof |
| US7294375B2 (en) | 2002-07-18 | 2007-11-13 | Kabushiki Kaisha Kobe Seiko Sho | Cement composite, concrete, concrete cask and method of manufacturing concrete |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RS49668B (en) * | 1998-04-15 | 2007-09-21 | Road Building International (Barbados) Limited, | A method of improving the engineering properties of soil |
-
1994
- 1994-06-08 JP JP15906994A patent/JP3166097B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7294375B2 (en) | 2002-07-18 | 2007-11-13 | Kabushiki Kaisha Kobe Seiko Sho | Cement composite, concrete, concrete cask and method of manufacturing concrete |
| US7119349B1 (en) | 2003-01-31 | 2006-10-10 | Kabushiki Kaisha Kobe Seiko Sho | Concrete cask and method for manufacturing thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07330393A (en) | 1995-12-19 |
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