JPH01261249A - Admixture for cement mortar concrete - Google Patents
Admixture for cement mortar concreteInfo
- Publication number
- JPH01261249A JPH01261249A JP8828988A JP8828988A JPH01261249A JP H01261249 A JPH01261249 A JP H01261249A JP 8828988 A JP8828988 A JP 8828988A JP 8828988 A JP8828988 A JP 8828988A JP H01261249 A JPH01261249 A JP H01261249A
- Authority
- JP
- Japan
- Prior art keywords
- admixture
- c4af
- c6a2f
- fe2o3
- cement mortar
- 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
- 239000004567 concrete Substances 0.000 title claims abstract description 13
- 239000011083 cement mortar Substances 0.000 title claims abstract description 9
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 5
- 239000010440 gypsum Substances 0.000 claims abstract description 5
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000002245 particle Substances 0.000 abstract description 4
- 239000006104 solid solution Substances 0.000 abstract description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract 2
- 238000013329 compounding Methods 0.000 abstract 2
- 229910018404 Al2 O3 Inorganic materials 0.000 abstract 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 abstract 1
- 150000008064 anhydrides Chemical class 0.000 abstract 1
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- 150000004683 dihydrates Chemical class 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
- 239000000463 material Substances 0.000 description 11
- 239000004568 cement Substances 0.000 description 9
- 238000010304 firing Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 4
- 238000004898 kneading Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 102000006463 Talin Human genes 0.000 description 3
- 108010083809 Talin Proteins 0.000 description 3
- 239000004570 mortar (masonry) Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- 239000011398 Portland cement Substances 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000001294 propane Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 102100033772 Complement C4-A Human genes 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- 101000710884 Homo sapiens Complement C4-A Proteins 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 241001062472 Stokellia anisodon Species 0.000 description 1
- 229910052925 anhydrite Inorganic materials 0.000 description 1
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000006072 paste Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- -1 sulfo aluminate Chemical class 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
Landscapes
- 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、セメントモルタル・コンクリート用混和材、
特に、各種セメントに混入して主に収縮を低減させたり
、ケミカルプレストレスを導入するために使用されるセ
メントモルタル・コンクリート用混和材に関する。[Detailed description of the invention] [Industrial application field] The present invention provides an admixture for cement mortar and concrete,
In particular, it relates to cement mortar and concrete admixtures that are mixed into various types of cement to mainly reduce shrinkage or introduce chemical prestress.
現在市販されているセメントモルタル・コンクリート用
混和材として、特に膨張材としては、例えば、３Ｃａ０
・３＾ｅ ２０３ − Ｃａ５Ｏａ 、ＣｃｉＳＯａ
及びＣａＯを主成分とするカルシムラ・サルホ・アルミ
ネート系（以下Ｃ４Ａ３ Ｓ−系膨張材という）と、Ｃ
ａＯを主成分とする石灰系の２種類がある。As an admixture for cement mortar and concrete currently on the market, especially as an expanding agent, for example, 3Ca0
・3^e 203 - Ca5Oa, CciSOa
and Calcimura sulfo aluminate based on CaO (hereinafter referred to as C4A3 S-based expansive material), and C
There are two types of limestone containing aO as the main component.
Ｃ４Ａ５Ｓ系の膨張材は１．焼成時にＳＯ，の揮散を生
じ、所定の鉱物組成にすることが難かしい事、揮散する
ＳＯ，を公害対策上捕集するので設備投資がかさむ事等
の問題点がある。The C4A5S-based expansion material is 1. There are problems such as the volatilization of SO during firing, making it difficult to obtain a predetermined mineral composition, and the need to collect the volatilized SO as a pollution control measure, which increases equipment investment.
又、ＣａＯ・３ＣａＯ−Ａｌ、０．−ＣａＳＯ４よりな
る膨張性混和剤が提案された（特公昭６２−６１５４８
号公報）が、３ ＣａＯ・Ａ Ｑ ２０３の焼成温度が
高い、膨張量がｆ−ＣａＯの性状に左右されるなどの問
題がある。Also, CaO.3CaO-Al, 0. - An expansive admixture consisting of CaSO4 was proposed (Japanese Patent Publication No. 62-61548
However, there are problems such as the firing temperature of 3CaO·A Q 203 being high and the amount of expansion depending on the properties of f-CaO.
さらに、石灰系の膨張材は、高い膨張量が得られる反面
、養生等により膨張量が不安定であることやその制御方
法の影響によりコンクリートの破壊を生じるなどの問題
点がある。Furthermore, although lime-based expansive materials can provide a high amount of expansion, they have problems such as instability in the amount of expansion due to curing, etc., and destruction of concrete due to the influence of the control method.
以上の問題点を解決するため、製造が容易で、経済的、
かつ、安定的に膨張量が得られる膨張材が要望されてい
た。In order to solve the above problems, we have developed an easy-to-manufacture, economical,
In addition, there has been a demand for an expanding material that can stably expand the amount of expansion.
本発明者等は、上記問題点を解決すべく種々検討を加え
た結果、特定成分の膨張材が、製造容易で安定的な膨張
量が得られ、経済的であることを見い出し本発明を完成
するに到った。As a result of various studies to solve the above-mentioned problems, the inventors of the present invention have discovered that an expanding material with a specific component is easy to manufacture, provides a stable amount of expansion, and is economical, and has completed the present invention. I came to the conclusion.
即ち、本発明はセッコウｌＯ〜９０重量％と、４ Ｃａ
Ｏ−Ａ １２０３ ・ＦｅｚＯ１及び／又は６Ｃａ０
・２Ａｌｔ（ｈ ・ＦｅｚＯ３９０”−１０重量％か
らなるセメントモルタル・コンクリート用混和材である
。That is, the present invention contains gypsum lO~90% by weight and 4 Ca
O-A 1203 ・FezO1 and/or 6Ca0
・2Alt(h ・FezO390''-10% by weight admixture for cement mortar and concrete.
以下、本発明の詳細な説明する。The present invention will be explained in detail below.
本発明において、以下、ＣａＯをＣ，Ａ１２０１をＡ、
Ｆｅ、０．をＦ及びＳＯ，を丁とする。In the present invention, hereinafter, CaO is C, A1201 is A,
Fe, 0. Let F and SO, be D.
本発明に係るセラコラとしては、特に制限されるもので
なく、半水セラコラ、三水セラコラ、■型態水セラコラ
及び■型態水セラコラ等が使用でき、これらを単独で使
用してもよく、２種類以上併用することも可能である。The Ceracola according to the present invention is not particularly limited, and semi-hydrous Ceracola, trihydric Ceracola, ■-type water Ceracola, ■-type water Ceracola, etc. can be used, and these may be used alone. It is also possible to use two or more types together.
中でも三水セラコラ、無水セラコラの使用が好ましい。Among them, it is preferable to use sanhydrous ceracola and anhydrous ceracola.
一セソコウの粒度は、Ｃ，ＡＰ及び／又はＣ＆／ｈＦと
同等程度以上が好ましく 、Ｃ４ＡＦ及び／又はＣ，Ａ
２Ｆタリン力−と混合して粉砕してもよく、別々に粉砕
して混合しても良い。Ｃ４＾Ｆ及び／又はＣ，Ａ、Ｆと
混合して粉砕する時は、セラコラが粉砕しやすいので、
別々に粉砕した時に比べて、ブレーン値が５００程度高
くなる。It is preferable that the particle size of the grain is equal to or higher than that of C, AP and/or C&/hF, and C4AF and/or C, A
It may be mixed with 2F Talin force and pulverized, or it may be pulverized separately and mixed. When grinding by mixing with C4^F and/or C, A, and F, Ceracola is easier to grind.
The Blaine value is about 500 higher than when crushed separately.
本発明に係るＣ４＾Ｆ及びＣ６Ａ２Ｆとは、Ｃ，ＡＩ’
又はＣ，Ａ２Ｆ中に少量のＮａ、０．５ｉｎ２及びＴｉ
０ｚ等が固溶するＣ４ＡＦ固溶体又はＣ，Ａ２Ｆ固溶体
である。C4^F and C6A2F according to the present invention are C, AI'
Or a small amount of Na, 0.5in2 and Ti in C, A2F
It is a C4AF solid solution or a C, A2F solid solution in which 0z etc. are dissolved.
Ｃ，ＡＦ及びＣ，Ａ、Ｆの粒度は、ブレーン値で１ 、
５００〜４．０００ ｃｒＡ ／ ｇが好ましい。ブレ
ーン値が１ 、５００ａｄ ／ ｇ未満の粗いものでは
、膨張量が大きいが、未水和物が長期にわたって存在す
るため耐久性の上から好ましくなく、ブレーン値４，０
００ ｃＪ／ ｇを越えるものは、単位水量の増加、水
和反応が早く終了するため膨張量が少ないため好ましく
ない。The particle size of C, AF and C, A, F is 1 in Blaine value,
500-4.000 crA/g is preferred. Rough materials with a Blaine value of less than 1.500 ad/g have a large expansion amount, but unhydrated materials remain for a long period of time, making them undesirable from the viewpoint of durability.
If it exceeds 0.00 cJ/g, it is not preferred because the unit water amount increases and the hydration reaction ends early, resulting in a small amount of expansion.
Ｃ，ＡＦ及びＣ６＾２Ｆの焼成温度は、１．２００℃以
上が好ましく 、１，３００〜１，４００℃（１３８０
℃付近）で焼ン
成を行ない、キル会を使用するのが量産、経済性から特
に好ましいが、これに限定されるものではない。原料組
成の面からＦｅ２Ｏ３成分を用いているＣ４ＡＦ及びＣ
，Ａ２Ｆは、ＡＪ２０３成分の多い系に比して焼成温度
を低下させることができ、原料コストの低減と云う面か
らも経済的に有利である。The firing temperature for C, AF and C6^2F is preferably 1.200°C or higher, and 1,300 to 1,400°C (1380°C or higher).
It is particularly preferable to perform the firing at a temperature of about 10.degree. C4AF and C which use Fe2O3 component from the viewpoint of raw material composition
, A2F can lower the firing temperature compared to systems containing a large amount of AJ203 components, and are economically advantageous in terms of reducing raw material costs.
本発明のセメントモルタル・コンクリート用混和材（以
下混和材という）は、セメントペースト、モルタル及び
コンクリートのいずれも用いることが出来る。これによ
り主に本発明の混和材を使用することによりセメントモ
ルタル・コンクリートを膨張させ、収縮の低減によるヒ
ビワレを防止すること、あるいは、ケミカルプレストレ
スを導入することができる。尚、高強度性や急硬性も若
干付与される。本発明の混和材の使用方法は現在市販さ
れている膨張材と同様であり、各種ポルトランドセメン
ト、混合セメントなどに用いる。その際、各種の化学混
和剤と併用することも可能であり、グルコースポリマー
の加水分解物のような水和熱抑制剤の併用は温度応力に
よるヒビワレ低減という点からも好ましい。また、他の
膨張材、例えばＣ，Ａ３ Ｓ系や石灰系と併用すること
も可能である。The cement mortar/concrete admixture (hereinafter referred to as admixture) of the present invention can be any of cement paste, mortar, and concrete. As a result, mainly by using the admixture of the present invention, cement mortar/concrete can be expanded to prevent cracking due to reduced shrinkage, or chemical prestress can be introduced. In addition, high strength and rapid hardening properties are also imparted to some extent. The method of using the admixture of the present invention is the same as that of currently commercially available expansion materials, and is used in various types of Portland cement, mixed cement, etc. In this case, it is also possible to use various chemical admixtures in combination, and the combination of a hydration heat inhibitor such as a hydrolyzate of glucose polymer is preferable from the viewpoint of reducing cracks caused by temperature stress. It is also possible to use it in combination with other expansive materials, such as C, A3 S-based or lime-based.
以下、実施例により、本発明を更に詳細に説明する。 Hereinafter, the present invention will be explained in more detail with reference to Examples.
実施例１゜
ＣａＣ０，、（１００ｍｅｓｈ以下）４００ｋｇ、焼結
アルミナ（６００〜３００μ）１０２ｋｇ及び酸化第２
鉄（Ｉ Ｑ Ｏｍｅｓｈ以下）１６０ｋｇを小型プロパ
ン炉で１ 、３８０℃で焼成し、Ｃ，ＡＰのタリン力−
を製造した。Example 1゜CaC0, (100mesh or less) 400kg, sintered alumina (600-300μ) 102kg and oxidized second
160 kg of iron (IQ Omesh or less) was fired at 1,380℃ in a small propane furnace, and the talin force of C,AP
was manufactured.
そのＣ，ＡＰタリン力−をボールミルで粉砕し、ブレー
ン値２，５００ ｃｊ／ ｇのＣ４ＡＦを得た。これに
試薬１級の三水セラコラ及び副産無水セラコラの粉砕品
（ブレーン値４．０００ ｃｔＡ／ ｇ ）を用い第１
表に示す配合の混和材組成とした。セメントと砂の比を
ｌ：２とし、水セメント比４５％のモルタルで試験を実
施した。混練り及び材料温度を２０℃一定とし、モルタ
ルミキサで混練りし、４Ｘ４Ｘ１６ｃｍの型枠に流し込
み成形を行ない、翌日脱型し、コンパレーター法により
膨張量の測定を行なった。The C, AP talin force was ground in a ball mill to obtain C4AF with a Blaine value of 2,500 cj/g. To this, a pulverized product (Blaine value 4.000 ctA/g) of reagent grade 1 trihydric ceracola and by-product anhydrous ceracola was used.
The admixture composition was as shown in the table. The test was carried out using a mortar with a cement-to-sand ratio of 1:2 and a water-cement ratio of 45%. Kneading and material temperature were kept constant at 20° C., and the mixture was kneaded in a mortar mixer, poured into a mold of 4×4×16 cm, and demolded the next day, and the amount of expansion was measured by the comparator method.
結果を第１表に併記する。The results are also listed in Table 1.
く使用材料〉
セメント：住人社製、普通ポルトランドセメント砂
：相模用産０．８、木更津産０．２混合品水 ：水道
水
実施例２゜
ＣａＣ０ｚ（Ｌ ＯＱ ｍｅｓｈ以下）６０ｏｈｇ、焼
結アルミナ（６００〜３００μ）２０４ｋｇ、酸化第２
鉄（試薬）１６ｏｋｇを小型プロパン炉で１，３７０℃
で焼成し、Ｃ，Ａ２Ｆのクリンカーを製造した。Materials used: Cement: Ordinary Portland cement sand manufactured by Juminsha
: Mixed product water of 0.8 from Sagami and 0.2 from Kisarazu : Tap water Example 2゜CaC0z (L OQ mesh or less) 60ohg, sintered alumina (600-300μ) 204kg, oxidized No. 2
16 kg of iron (reagent) was heated to 1,370°C in a small propane furnace.
C, A2F clinker was produced.
これと副産無水セソコウをボールミルで粉砕し、プレー
ン値で３，１１０〜３．５４０’ ｃｒＡ／ ｇとした
。第２表に示す配合の混和材組成とし、混練りは、実施
例１と同様に行なった。結果を第２表に併記する。This and the by-product anhydrous smelt were ground in a ball mill to give a plain value of 3,110 to 3.540' crA/g. The admixture composition was as shown in Table 2, and kneading was carried out in the same manner as in Example 1. The results are also listed in Table 2.
実施例３゜
実施例１．で製造したＣオＡＦのクリンカーと、無水セ
ラコラをｌ：１の重量比で混合し、ボールミルで同時粉
砕し、ブレーン値で３．０ＯＯＣ，１１７ｇの混和材を
得た。この混和材を単位セメント量３１２ ｋｇ／ｄ、
水セメント比５２％のコンクリートに混入した時の膨張
量を測定した。結果を第３表に示す。Example 3゜Example 1. The COAF clinker produced in 1:1 and anhydrous Ceracola were mixed at a weight ratio of 1:1 and simultaneously ground in a ball mill to obtain 117 g of an admixture with a Blaine value of 3.0 OOC. This admixture has a unit cement amount of 312 kg/d,
The amount of expansion when mixed into concrete with a water-cement ratio of 52% was measured. The results are shown in Table 3.
混練りは強制練りミキサを使用し、１０Ｘ２０Ｘ４０ａ
ａの型枠で成形し、翌日脱型し、コンタクトゲージ法に
より膨張量を測定した。For kneading, use a forced mixer, 10X20X40a
The mold was molded using the mold shown in a, and the mold was removed the next day, and the amount of expansion was measured using the contact gauge method.
第 ３ 表
実施例４゜
実施例１及び実施例２で製造したＣ、ＡＦ、 Ｃ＆４２
Ｆのクリンカーを各々０．５重量部と、無水セフコラ１
、ＯＭ量部を混合し、ボールミルで同時粉砕し、ブレー
ン値で２，６４０ ｃｓＡ／ ｇの混和材を得た。この
混和材を単位セメント量３２０ｋｇ／ｉ、水セメント比
５０％のコンクリートに混入した時の膨張量を測定した
。結果を第４表に示す、混練り及び測定は、実施例３と
同様に行なった。Table 3 Example 4゜C, AF, C&42 manufactured in Example 1 and Example 2
0.5 parts by weight of each clinker of F and 1 part of anhydrous Sefcola
, OM parts were mixed and simultaneously ground in a ball mill to obtain an admixture with a Blaine value of 2,640 csA/g. The amount of expansion when this admixture was mixed into concrete with a unit cement amount of 320 kg/i and a water-cement ratio of 50% was measured. The kneading and measurements, the results of which are shown in Table 4, were carried out in the same manner as in Example 3.
第４表
〔発明の効果〕
以上から明らかなように、本発明によって製造が容易で
経済的、かつ、安定した膨張量が得られる混和材の提供
が可能となった。Table 4 [Effects of the Invention] As is clear from the above, the present invention makes it possible to provide an admixture that is easy to manufacture, economical, and provides a stable amount of expansion.
特許出願人 電気化学工業株式会社Patent applicant: Denki Kagaku Kogyo Co., Ltd.
Claims (1)
２Ｏ＿３・Ｆｅ＿２Ｏ＿３及び／又は６ＣａＯ・２Ａｌ
＿２Ｏ＿３Ｆｅ＿２Ｏ＿３９０〜１０重量％からなるセ
メントモルタル・コンクリート用混和材。(1) 10 to 90% by weight of gypsum and 4CaO・Al_
2O_3・Fe_2O_3 and/or 6CaO・2Al
An admixture for cement mortar and concrete consisting of _2O_3Fe_2O_390 to 10% by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63088289A JP2747294B2 (en) | 1988-04-12 | 1988-04-12 | Admixture for cement mortar and concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63088289A JP2747294B2 (en) | 1988-04-12 | 1988-04-12 | Admixture for cement mortar and concrete |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01261249A true JPH01261249A (en) | 1989-10-18 |
| JP2747294B2 JP2747294B2 (en) | 1998-05-06 |
Family
ID=13938750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63088289A Expired - Fee Related JP2747294B2 (en) | 1988-04-12 | 1988-04-12 | Admixture for cement mortar and concrete |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2747294B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008094668A (en) * | 2006-10-13 | 2008-04-24 | Denki Kagaku Kogyo Kk | Grout composition and grout material using the same |
| JP2008094675A (en) * | 2006-10-13 | 2008-04-24 | Denki Kagaku Kogyo Kk | Cement mortar composition for grout |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS494717A (en) * | 1972-04-28 | 1974-01-16 |
-
1988
- 1988-04-12 JP JP63088289A patent/JP2747294B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS494717A (en) * | 1972-04-28 | 1974-01-16 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008094668A (en) * | 2006-10-13 | 2008-04-24 | Denki Kagaku Kogyo Kk | Grout composition and grout material using the same |
| JP2008094675A (en) * | 2006-10-13 | 2008-04-24 | Denki Kagaku Kogyo Kk | Cement mortar composition for grout |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2747294B2 (en) | 1998-05-06 |
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| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |