WO2006134670A1 - Adjuvant pour ciment et composition de ciment - Google Patents
Adjuvant pour ciment et composition de ciment Download PDFInfo
- Publication number
- WO2006134670A1 WO2006134670A1 PCT/JP2005/011203 JP2005011203W WO2006134670A1 WO 2006134670 A1 WO2006134670 A1 WO 2006134670A1 JP 2005011203 W JP2005011203 W JP 2005011203W WO 2006134670 A1 WO2006134670 A1 WO 2006134670A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cement
- anhydrous gypsum
- natural anhydrous
- dissolution rate
- cement admixture
- Prior art date
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Classifications
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- 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
- C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
- C04B22/08—Acids or salts thereof
- C04B22/14—Acids or salts thereof containing sulfur in the anion, e.g. sulfides
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- 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
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- 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
- C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
- C04B22/06—Oxides, Hydroxides
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- 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
- C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
- C04B22/08—Acids or salts thereof
-
- 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
- C04B28/14—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 calcium sulfate cements
- C04B28/16—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 calcium sulfate cements containing anhydrite, e.g. Keene's cement
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- 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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
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- 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
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/2038—Resistance against physical degradation
- C04B2111/2053—Earthquake- or hurricane-resistant materials
Definitions
- the present invention relates to a cement admixture and a cement composition, and more particularly, to a cement admixture mainly composed of natural anhydrous gypsum with a defined dissolution rate and a cement composition using the admixture.
- Anhydrite is widely used as an admixture for atmospheric steam curing.
- Anhydrous gypsum varies greatly depending on its heat treatment conditions and formation process, and natural anhydrous gypsum, depending on the production area.
- Patent Document 1 Japanese Patent No. 1 2 2 1 2 8 1
- natural anhydrous gypsum has a high dissolution rate, so there are inconveniences such as false coagulation when it is used in combination with naphthenic or melamine high-performance water reducing agents used in the production of high-strength concrete.
- natural anhydrous gypsum from Thailand when 100 g of 0.05% Na2HPO 4 aqueous solution was contacted with 1 g of natural anhydrous gypsum for 1 hour, the dissolved amount of S04 ion concentration in the aqueous solution was 0.15 to 1.5% by mass.
- Patent Document 2 There has also been proposed a concrete in which what is shown is blended together with a polycarboxylate-based water reducing agent having a setting delay, and a method for producing a high-strength concrete molded body using the same (see Patent Document 2).
- Patent Document 2 Patent No. 3 3 4 3 1 6 3
- silica flour sica fume
- silicate white clay silicate white clay
- fly ash etc.
- a cement admixture has also been proposed (see Patent Document 3).
- Patent Document 3 Japanese Patent No. 1 2 3 4 4 4 8
- hydrofluoric acid-generated by-product anhydrous gypsum was found to be the cause of chlorofluorocarbon gas breaking down the ozone layer, and an alternative technology was developed to suppress the production of hydrofluoric acid and produce by-product hydrofluoric acid by-product. There is a problem that the amount of raw anhydrous gypsum is drastically decreasing, making it difficult to use.
- natural anhydrite basically has a high dissolution rate, and the dissolution rate varies depending on the origin, the depth of the veins, and the impurities contained, and the solubility varies greatly depending on the powder conditions, ensuring stable high strength performance. It is a problem that is difficult to achieve, and it is not shown by the strength development performance at a lower level than hydrous acid generation by-product anhydrous gypsum.
- the dissolution rate and reactivity differ depending on the temperature, so even if used in combination with a polystrength sulfonated water reducing agent, there are problems such as the occurrence of false coagulation and sudden slump loss depending on the type and amount of addition. Is inherent.
- the present invention is a cement admixture that can improve the pseudo-caking property due to the high dissolution rate of natural anhydrous gypsum without limiting the type of water reducing agent, and can stably ensure high strength development performance. And to provide a cement composition using the admixture. Means for solving the problem
- the present invention employs the following means.
- the natural anhydrous gypsum is 0.05 at 20 ° C.
- the S0 4 ion concentration in the aqueous solution shows a dissolution rate of 2.7 to 30 mass% Z hr. It is a cement admixture characterized by being.
- the cement admixture according to (2) or (3) above which contains at least 80% by mass of one or more selected from clay minerals, fly ash, slaked lime, and quicklime.
- a cement composition wherein the cement admixture according to any one of (1) to (4) is added to cement.
- the part and% which show the mixture ratio and addition amount which are used by this invention are a mass unit.
- the anhydrous gypsum used in the present invention is natural anhydrous gypsum.
- S0 4 ion concentration in the aqueous solution are those shows the dissolution rate of 4-30 mass% Z hr.
- the dissolution rate exceeds 30% by mass Zhr, it is not preferable because the concrete kneading temperature exhibits pseudo-coagulation even at a temperature of 10 ° C or less, and the high strength development performance is reduced. If the dissolution rate is less than 4% by mass Zhr, false coagulation is not shown even if the temperature is high, but the degree of fineness becomes too small and unreacted natural anhydrous gypsum remains, resulting in a decrease in high strength development performance. It is.
- a preferable dissolution rate is 4 to 20% by mass.
- the present inventor has found that calcined clay minerals, clay minerals, and fly ash have no strength enhancement effect due to their own pozzolanic activity, but they suppress the dissolution rate of natural anhydrous gypsum. It has been found that a high strength is obtained as a result. In the case of slaked lime and quicklime, the effect of suppressing the dissolution rate of natural anhydrous gypsum was recognized, and as a result, it was found that high strength was obtained. In addition, it has been found that when one or more kinds selected from calcined clay minerals, clay minerals, and fly ash are used in combination with slaked lime and Z or quick lime, the dissolution rate is further suppressed and higher strength is obtained. Is more preferable.
- the calcined clay mineral of the present invention is an earthy clay mainly composed of aluminosilicates such as acid clay, activated clay (acid-treated acid clay), bentonite, kaolinite, chlorite, sericite, and rhodolite.
- Clay minerals are aluminosilicates such as acid clay, activated clay (acid clay treated with acid), bentonite, kaolinite, chlorite, sericite, and rhodolite. It is a soil-like mixture containing as a main component. Fly ash is collected from the flue of the pulverized coal fired thermal power plant and contains a large amount of silicic acid and alumina.
- the amount of one or more admixture components selected from calcined clay minerals, clay minerals, fly ash, slaked lime, and quick lime is preferably 80 parts or less in a total of 100 parts of natural anhydrous gypsum and these admixture components, 10 to 70 parts are more preferred. Even if it exceeds 80 parts, the effect of suppressing the dissolution rate of natural anhydrous gypsum reaches its peak, and the high strength development performance may not change, and in addition, the blending ratio of natural anhydrous gypsum decreases, so that the same strength In order to achieve this, the amount of cement admixture added to the cement increases, which is economically undesirable.
- the amount of the cement admixture of the present invention is preferably 15 parts or less, more preferably 2 to 10 parts in terms of natural anhydrous gypsum, with respect to 100 parts of cement. Even if it exceeds 15 parts, the strength effect may reach its peak.
- the curing method may be a conventional method and is not particularly limited. In this case, it is preferable to hold at the maximum temperature of 40 to 90 ° C for 4 to 6 hours, and the time from the start of steam curing to the stop of steam curing is preferably 5 to 10 hours.
- a necessary amount of a high-performance water reducing agent or a high-performance AE water reducing agent is used in combination.
- What is marketed as a high-performance water reducing agent is mainly composed of any one of polyalkylarylsulfonate, aromatic aminosulfonate, and melamine formalin resin sulfonate. One or more of them are used.
- Polyalkylaryl sulfonate-based high-performance water reducing agents include methylnaphthalene sulfonic acid formalin condensate, naphthalene sulfonic acid formalin condensate, anthracene sulfonic acid formalin condensate and so on.
- Setting delay is a small water reducing agent.
- the amount of the above-mentioned high-performance water reducing agent added is preferably 4% by mass or less, more preferably 1.0 to 3.0% by mass with respect to cement in the form of a commercial product.
- High-performance AE water reducing agents include improved types of high-performance water reducing agents, which can also be used, but as commonly called polycarboxylate-based water reducing agents, unsaturated power ruponic acid A copolymer containing a monomer as a component or a salt thereof, such as a polyalkylene glycol monoacrylate, a polyalkylene glycol monomethacrylate, a maleic anhydride and a styrene. Salt copolymers and copolymers derived from monomers copolymerizable with these monomers are the mainstream, and the water reduction rate is large with less addition than the high-performance water reducing agent system. In addition, it has air entrainment properties and large delay in setting and curing, but it has the property of having slump retention.
- polycarboxylate-based water reducing agents unsaturated power ruponic acid A copolymer containing a monomer as a component or a salt thereof, such as a polyalkylene glycol monoacrylate
- the amount of the high-performance AE water reducing agent added as described above is preferably 4% by mass or less, more preferably 0.7 to 3.0% by mass, based on cement in the form of a commercial product.
- the cement used in the present invention is usually a mixture of various Portland cements such as early strong, moderately hot, low heat, sulfate resistance, white, or a mixture of blast furnace slag and fly ash. Ordinary, early strong, moderately hot, low heat, sulfate resistant, white cement, cement mixed with mixed cement, or cement with blast furnace slag or fly ash mixed with early strong poled land cement. Yo Yes.
- the method for adding the admixture of the present invention is not particularly limited.
- a mixture of natural anhydrous gypsum or natural anhydrous gypsum and calcined clay mineral, etc., and a mixture of powdered and mixed powder may be added together with other mortar or concrete materials. These components may be added separately.
- a cement composition may be added.
- the mixing method does not require a special method, and a conventional mixing method is sufficient.
- Meteorite Meteorite from Himekawa, Niigata Prefecture (13-5mm)
- Water reducing agent Polyalkylaryl sulfonate high-performance water reducing agent (liquid)
- Calcinated clay mineral A Clay mineral, acid clay ground product, Blaine specific surface area 7520cm 2 / g .
- Calcinated clay mineral B baked clay mineral, activated clay after cooking edible oil is baked at 800 ° C Powdered rice cake, Blaine specific surface area 5510cm 2 / g
- Calcined clay minerals C Fly ash, further mixed with cement admixture produced as a by-product in coal-fired thermal power plant, Blaine specific surface area 5060cm 2 / g
- Calcined clay minerals D quick lime, gas baked quick lime, purity 99%, ground product, Blaine specific surface area 8550cm 2 / g
- Calcined clay mineral E Slaked lime, calcined clay mineral D digested and powdered, brain specific surface area 10000cm 2 / g or more
- Natural anhydrous gypsum was adjusted by adjusting the powder level while changing the feed amount with a vibratory mill with two cylinders (inner diameter of 15 cm). In addition, when blending calcined clay minerals, etc., Combined.
- Table 1 shows the physical properties such as the dissolution rate of cement admixtures based on the natural anhydrous gypsum of the present invention that has been pulverized.
- the concrete was mixed at 10 or less to reduce false setting.
- the basic composition of concrete is: unit cement amount 450 kg / m 3 , water amount 130 kg m 3 , fine aggregate amount 710 kg m 3 , coarse aggregate amount 1150 kg / m 3 , water reducing agent amount 9 kg / m 3 (internal allocation to water) a Caro), cement admixture to 31.5 kg m 3 (7 parts by weight per 100 parts by weight cement) replaced with fine aggregate to prepare a concrete slump 1 ⁇ 8 cm, were molded specimen.
- Table 2 shows the results of gradual cooling in a steam curing tank and measuring the compressive strength of the material one day.
- Table 2 shows that even if the natural anhydrous gypsum has a large plain specific surface area and a high dissolution rate, and even if the plain specific surface area is small and the dissolution rate is slow, the high strength development performance is lost.
- the dissolution rate is 4 to 30% by mass hr, and the strength enhancement effect is recognized, and it is preferably 4 to 20% by mass / hr. It was also found that when the dissolution rate exceeds 30% by mass hr, pseudo-condensation was exhibited even at low temperatures, resulting in poor workability.
- Table 3 shows the dissolution rate of the cement admixture obtained by mixing the cement admixture in Table 1 with 70:30 parts by mass of calcined clay. Table 3 shows that the dissolution rate of natural anhydrous gypsum decreases when calcined clay minerals are added.
- Table 5 shows cement admixtures in which the dissolution rate was adjusted by mixing calcined clay, etc., in the sample No. 4 in Table 1 at an arbitrary ratio.
- the dissolution rate of natural anhydrous gypsum is Table 5 shows that the higher the blended amount of baked clay, etc.
- Figures in parentheses are parts by weight of natural anhydrous gypsum relative to 100 parts by weight of cement.
- the ratio of natural anhydrous gypsum to calcined clay mineral is 30 Z 70 and 20/80, the strength reaches its peak, so even if natural anhydrous gypsum is less than 20 parts by mass, no increase in strength can be expected (Experiment No. 3 -10 to No.3-ll).
- the ratio of natural anhydrous gypsum and calcined clay minerals shows a strength effect from 95 Z 5, but as the ratio of calcined clay minerals increases, the strength gradually increases and becomes remarkable from 90/10 (Experiment No.3-1 to No.3-10). Therefore, the blending ratio of the natural anhydrous gypsum Z calcined clay mineral of the present invention is 95 Z 5-20 / 80, more preferably 90 Z 10-30 Z 70.
- the component in the calcined clay mineral is quick lime or slaked lime (Experiment No.3- 12 ⁇ No. 3-17) shows a tendency for strength to be higher than that of calcined clay minerals due to the effect of accelerated setting of cement by quick lime and slaked lime and the effect of increasing hydration.
- Natural anhydrous gypsum Z The ratio of natural anhydrous gypsum added to cementite is changed to 50/50 at a constant ratio of calcined clay mineral (Experiment No.3-19 to No.3-25). The improvement is noticeable at 2% by mass or more, but even if added over 10 to 15% by mass, the strength reaches its peak, and if it is less than 1% by mass, the strength enhancement effect is expected to be small. Therefore, the addition amount of the cement admixture of the present invention is 15% by mass or less in terms of natural anhydrous gypsum, and preferably 2 to 10% by mass.
- Table 7 shows the dissolution rates of two or more types of calcined clay mixed with cement admixture sample No. 5 in Table 1. Also in this case, it is shown that the dissolution rate of natural anhydrous gypsum decreases as the blending ratio of baked clay increases.
- Example 9 A test similar to Example 4 was performed using the cement admixture of Table 7. However, the type of water reducing agent was changed from the polyalkylaryl sulfonate water reducing agent, which is a high performance water reducing agent, to the polycarboxylate water reducing agent, which is a high performance AE water reducing agent, and the amount added was 5.85. kg m 3 (slump of 1 to 8 cm is obtained with this addition amount). The results are shown in Table 9. Table 9
- Table 9 shows that even when polycarboxylate-based water reducing agents are used, the same strength is obtained as when polyalkylaryl sulfonate-based water reducing agents are used, and the higher the content of baked clay minerals, the higher the strength. As shown, the strength tends to decrease when the absolute amount of natural anhydrous gypsum decreases even if the amount is too much, and the ratio of natural hydrous gypsum Z calcined clay mineral, etc. A strength increase effect is shown in the range of 60 (Experiment No. 5-4 to No. 5-11). Industrial applicability
- the present invention is a cement admixture mainly composed of natural anhydrous gypsum whose dissolution rate is defined as described above, or the natural anhydrous gypsum and calcined clay mineral, viscosity; fc mineral, fly ash, slaked lime, and quick lime. It is a cement admixture containing one or more of the above, and it is a cement composition that can achieve high strength using these admixtures, so it is possible to increase the strength of civil engineering structures, concrete piles, poles, fume Used for pipes and other concrete products produced by steam curing.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Cette invention concerne un adjuvant pour ciment, lequel, sans limiter la nature d'un agent réducteur d'eau, peut améliorer une propriété de fausse prise attribuable à une vitesse de dissolution élevée du gypse anhydre naturel et peut garantir de façon stable des propriétés de développement d'une résistance élevée ; et une composition de ciment utilisant l'adjuvant. L'adjuvant pour ciment est caractérisé en ce qu'il comprend un gypse anhydre naturel, lequel, lorsque 1 g d'un gypse anhydre naturel est mis en contact avec 100 g d'une solution aqueuse à 0,05 % de Na2HPO4 à 20°C pendant 1 h, a une vitesse de dissolution de 4 à 30 % en poids/h en termes de concentration de l'ion SO4 dans la solution aqueuse. L'invention concerne également un adjuvant pour ciment composé principalement d'un gypse anhydre naturel et d'au moins un élément sélectionné entre des matières minérales de type argiles cuites, des matières minérales de type argiles, des cendres volantes, la chaux éteinte et la chaux vive et caractérisé en ce que, lorsque 1 g du gypse anhydre naturel présent dans l'adjuvant pour ciment est mis en contact avec 100 g d'une solution aqueuse à 0,05 % de Na2HPO4 à 20°C pendant 1 h, la vitesse de dissolution est de 2,7 à 30 % en poids/h en termes de concentration de l'ion SO4 dans la solution aqueuse. La composition de ciment est caractérisée en ce qu'elle comprend l'adjuvant pour ciment ci-dessus ajouté à du ciment.
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2005/011203 WO2006134670A1 (fr) | 2005-06-14 | 2005-06-14 | Adjuvant pour ciment et composition de ciment |
CN2006800210003A CN101198562B (zh) | 2005-06-14 | 2006-03-30 | 水泥混合材料、水泥组合物以及灰浆或混凝土制品的制造方法 |
KR1020077029330A KR100947808B1 (ko) | 2005-06-14 | 2006-03-30 | 시멘트 혼화재, 시멘트 조성물, 및, 모르타르 또는 콘크리트 제품 |
PCT/JP2006/307258 WO2006134711A1 (fr) | 2005-06-14 | 2006-03-30 | Additif de ciment, composition de ciment et procédé de production d’un produit de type mortier ou béton |
JP2007521176A JP4954068B2 (ja) | 2005-06-14 | 2006-03-30 | セメント混和材、セメント組成物、並びに、モルタル又はコンクリート製品の製造方法 |
MYPI20062128A MY163157A (en) | 2005-06-14 | 2006-05-09 | Cement admixture, cement composition and manufacturing method of mortar or concrete product |
TW095121117A TWI403484B (zh) | 2005-06-14 | 2006-06-14 | 水泥混合材、水泥組成物及砂漿或混凝土製品 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/JP2005/011203 WO2006134670A1 (fr) | 2005-06-14 | 2005-06-14 | Adjuvant pour ciment et composition de ciment |
Publications (1)
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WO2006134670A1 true WO2006134670A1 (fr) | 2006-12-21 |
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Application Number | Title | Priority Date | Filing Date |
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PCT/JP2005/011203 WO2006134670A1 (fr) | 2005-06-14 | 2005-06-14 | Adjuvant pour ciment et composition de ciment |
PCT/JP2006/307258 WO2006134711A1 (fr) | 2005-06-14 | 2006-03-30 | Additif de ciment, composition de ciment et procédé de production d’un produit de type mortier ou béton |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2006/307258 WO2006134711A1 (fr) | 2005-06-14 | 2006-03-30 | Additif de ciment, composition de ciment et procédé de production d’un produit de type mortier ou béton |
Country Status (5)
Country | Link |
---|---|
KR (1) | KR100947808B1 (fr) |
CN (1) | CN101198562B (fr) |
MY (1) | MY163157A (fr) |
TW (1) | TWI403484B (fr) |
WO (2) | WO2006134670A1 (fr) |
Cited By (4)
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GB2470401A (en) * | 2009-05-22 | 2010-11-24 | Bpb Ltd | Calcium sulphate-based products having enhanced water resistance |
JP4954068B2 (ja) * | 2005-06-14 | 2012-06-13 | 電気化学工業株式会社 | セメント混和材、セメント組成物、並びに、モルタル又はコンクリート製品の製造方法 |
CN103880374A (zh) * | 2014-03-13 | 2014-06-25 | 安徽理工大学 | 一种利用脱硫石膏和聚丙烯纤维的新型水泥土搅拌桩 |
RU2586893C2 (ru) * | 2010-11-23 | 2016-06-10 | Сэн-Гобэн Плако Сас | Продукт на основе сульфата кальция и способы его изготовления |
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JP2010275157A (ja) * | 2009-05-29 | 2010-12-09 | Sumitomo Osaka Cement Co Ltd | セメント硬化体の作製方法 |
CN102172979A (zh) * | 2011-02-12 | 2011-09-07 | 嘉兴学院管桩应用技术研究所 | 一种提高水泥制品混凝土强度的方法 |
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JP2020183339A (ja) * | 2019-05-09 | 2020-11-12 | 宇部興産株式会社 | モルタル・コンクリート用混和材、これを含むセメント組成物、モルタル組成物及びコンクリート組成物、並びに、モルタル硬化物及びコンクリート硬化物の製造方法 |
JP7444619B2 (ja) * | 2020-01-23 | 2024-03-06 | デンカ株式会社 | セメント混和材 |
CN111410488A (zh) * | 2020-04-25 | 2020-07-14 | 遂宁安通商品混凝土有限公司 | C80高强混凝土及其制备方法 |
CN113800789B (zh) * | 2021-11-19 | 2022-02-25 | 山东绿达建设发展集团有限公司 | 一种高速公路路基缓凝水泥及其制备方法 |
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JPH0920545A (ja) * | 1995-07-05 | 1997-01-21 | Denki Kagaku Kogyo Kk | セメント組成物、それを用いたセメント硬化体、及びその製造方法 |
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JPH11171628A (ja) * | 1997-12-05 | 1999-06-29 | Kawasaki City | 下水汚泥焼却灰を用いたセメント組成物およびこのセメ ント組成物の使用方法とこの組成物を用いた成形物およ び構造物 |
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JPH0649606B2 (ja) * | 1989-08-10 | 1994-06-29 | 大阪セメント株式会社 | セメント組成物 |
KR950007707B1 (ko) * | 1992-04-23 | 1995-07-14 | 덴끼가가꾸고오교 가부시끼가이샤 | 시멘트 혼화재 및 이를 함유하는 시멘트 조성물 |
JP3343163B2 (ja) * | 1993-12-27 | 2002-11-11 | 太平洋セメント株式会社 | コンクリート及びこれを用いた高強度コンクリート成形体の製造方法 |
JP3390076B2 (ja) * | 1994-01-25 | 2003-03-24 | 電気化学工業株式会社 | セメント混和材及びセメント組成物 |
-
2005
- 2005-06-14 WO PCT/JP2005/011203 patent/WO2006134670A1/fr not_active Application Discontinuation
-
2006
- 2006-03-30 KR KR1020077029330A patent/KR100947808B1/ko active IP Right Grant
- 2006-03-30 WO PCT/JP2006/307258 patent/WO2006134711A1/fr active Application Filing
- 2006-03-30 CN CN2006800210003A patent/CN101198562B/zh active Active
- 2006-05-09 MY MYPI20062128A patent/MY163157A/en unknown
- 2006-06-14 TW TW095121117A patent/TWI403484B/zh not_active IP Right Cessation
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JPS5640104B2 (fr) * | 1976-10-15 | 1981-09-18 | ||
JPH0920545A (ja) * | 1995-07-05 | 1997-01-21 | Denki Kagaku Kogyo Kk | セメント組成物、それを用いたセメント硬化体、及びその製造方法 |
JPH09156977A (ja) * | 1995-12-11 | 1997-06-17 | Denki Kagaku Kogyo Kk | セメント混和材及びセメント組成物 |
JPH11171628A (ja) * | 1997-12-05 | 1999-06-29 | Kawasaki City | 下水汚泥焼却灰を用いたセメント組成物およびこのセメ ント組成物の使用方法とこの組成物を用いた成形物およ び構造物 |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4954068B2 (ja) * | 2005-06-14 | 2012-06-13 | 電気化学工業株式会社 | セメント混和材、セメント組成物、並びに、モルタル又はコンクリート製品の製造方法 |
GB2470401A (en) * | 2009-05-22 | 2010-11-24 | Bpb Ltd | Calcium sulphate-based products having enhanced water resistance |
WO2010133898A1 (fr) | 2009-05-22 | 2010-11-25 | Bpb Limited | Produit à base de sulfate de calcium ayant une résistance à l'eau accrue |
US9127166B2 (en) | 2009-05-22 | 2015-09-08 | Bpb Limited | Calcium sulphate-based products having enhanced water resistance |
RU2586893C2 (ru) * | 2010-11-23 | 2016-06-10 | Сэн-Гобэн Плако Сас | Продукт на основе сульфата кальция и способы его изготовления |
CN103880374A (zh) * | 2014-03-13 | 2014-06-25 | 安徽理工大学 | 一种利用脱硫石膏和聚丙烯纤维的新型水泥土搅拌桩 |
Also Published As
Publication number | Publication date |
---|---|
MY163157A (en) | 2017-08-15 |
CN101198562A (zh) | 2008-06-11 |
KR100947808B1 (ko) | 2010-03-15 |
KR20080025680A (ko) | 2008-03-21 |
TWI403484B (zh) | 2013-08-01 |
WO2006134711A1 (fr) | 2006-12-21 |
TW200710061A (en) | 2007-03-16 |
CN101198562B (zh) | 2012-10-17 |
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