CN1084146A - Cement, concrete coagulate soon, early strong, water resisting admixture and preparation technology thereof - Google Patents

Cement, concrete coagulate soon, early strong, water resisting admixture and preparation technology thereof Download PDF

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Publication number
CN1084146A
CN1084146A CN 93107571 CN93107571A CN1084146A CN 1084146 A CN1084146 A CN 1084146A CN 93107571 CN93107571 CN 93107571 CN 93107571 A CN93107571 A CN 93107571A CN 1084146 A CN1084146 A CN 1084146A
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cement
admixture
water
alum
strong
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CN 93107571
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包瀛
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Individual
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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
    • 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
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/0004—Compounds chosen for the nature of their cations
    • C04B2103/0013—Iron group metal compounds
    • C04B2103/0014—Fe
    • 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
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/0004—Compounds chosen for the nature of their cations
    • C04B2103/0017—Refractory metal compounds
    • 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
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/10—Accelerators; Activators
    • 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
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/60—Agents for protection against chemical, physical or biological attack
    • C04B2103/65—Water proofers or repellants

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

Cement, concrete coagulate soon, morning is strong, water resisting admixture, admixture is by 2-7% basic material water glass, yellow soda ash, sodium hydroxide, potassium, unslaked lime, 0.2-1.0% inorganic salt material vitriol, ferric sulfate, 0.12-0.24% trolamine, and enough water formulated.Preparation technology is earlier with solid material grinding, mixing, adds water and adds catalyzer, heating carries out catalyzed reaction, cool off product.This admixture material cost is low, preparation easily, applicable to silicate cement, special cement and cement of low index fast that is mixed with a large amount of waste materials coagulate, strong, waterproof early, is used to rush to repair and require the engineering of early strength.

Description

Cement, concrete coagulate soon, early strong, water resisting admixture and preparation technology thereof
The invention belongs to cement, concrete admixture class, belong to particularly that cement, concrete coagulate soon, strong, water resisting admixture class early.
At present China is used for that cement, concrete coagulate soon, early strong, water resisting admixture has three kinds:
A kind of is the water glass class, and it is to be that base-material adding suitable water and alum salt (alum, arsenic, purple alum, blue alum) are formulated with water glass.
A kind of is the muriate metallic salt, it be with the sulfur waste scum of acid plant and industrial salt be main raw material prepared a kind of be the admixture of main component with iron(ic) chloride, wherein also contain a spot of calcium chloride, aluminum chloride etc.
A kind of is the metallic soap class, is to adopt the formulated oyster white pulpous state liquid of several metallic soaps, mixes in the cement and can generate insoluble substance with it, the capillary channel of plugging cement, or hydrophobicity wall film.
And now general common commonly used be first kind, but it can't solve the leak stopping problem well.Its reason is that their regulate cement setting time narrow range, when its with the cement mix after, very easily clump together with cement is anxious, the generation crack does not reach the expection construction requirement.
Be suitable for cement fast coagulate, strong, water resisting admixture early, be base-material with the aluminum oxide clinker, be different from the powdery admixture of fast dry essence and so on as Red Star, Yangquan 1 type, 711 types etc., because they are strong to the starting material selectivity, complex manufacturing, cost height are so be difficult to penetration and promotion.
The objective of the invention is according to above-mentioned cement or cement, concrete coagulate soon, the problem that exists of strong, water resisting admixture early, be intended to design a kind of cement, concrete coagulate soon, transfer coagulate, strong, water resisting admixture early, cement of low index fast that it is applicable to silicate cement, special cement and is mixed with a large amount of waste materials coagulate, strong, waterproof early.
The objective of the invention is to realize in the following manner, cement, concrete coagulate soon, strong, water resisting admixture early, is a kind of liquid of deep dark, and be formulated through heatable catalytic by basic material, inorganic salt material, catalyzer.Its weight % ratio is: basic material 2-7, and inorganic salt material 0.2-1.0, catalyzer 0.12-0.24 adds water to 100%.
Basic material is water glass, yellow soda ash, sodium hydroxide, potassium hydroxide, unslaked lime or the combination of part wherein.
The inorganic salt material is alum salt, ferric sulfate.Alum salt can be alum, blue alum, purple alum.
Catalyzer is a trolamine.
Cement, concrete coagulate soon, morning is strong, the preparation technology of water resisting admixture, earlier with weight % ratio be: the alum salt of 2-7 basic material 0.2-1.0, ferric sulfate are behind grinding, mixing, adding water to total amount is 100, heating, add trolamine, after carrying out catalyzed reaction 10-30 minute under 40 °-80 ℃, cool off, get product.
Admixture cost of the present invention is low, starting material are easy to get, production process is simple.Add this agent and can quicken cement and concrete setting and harden, improve early strength, need not use water curing, can prevent be full of cracks, thereby improve cement, concrete waterproof, anti-permeability performance.
This agent does not all have corrosive nature to any material of construction, needs applicable to various engineering.This agent is applicable to the rush repair of engineering in traffic main artery, airstrip, bridge and the water; Applicable to the hard well of vault, tunnel, piling usefulness and the leak stopping of culvert; Applicable to fluid pipeline, retention basin, water tower, dykes and dams etc. leak in a large number the place urgent leak stopping; Also applicable to the lie support engineering in coalpit, pit, but rapid construction helps accelerating driving speed.In sum since this agent to cement, concretely fast coagulate, the improvement of strong, water resistance early, can accelerate speed of application, reduce construction investment, reduce the loss that people's life safety and life are caused.
This admixture and cement mix can become useful material of construction with various solids, powder waste material and water-containing sludge bonding.
Enumerate the embodiment of prescription of the present invention and use-testing below.Formulation Example sees Table 1, table 2.
Figure 931075718_IMG1
Going out to grind this admixture of adding in the cement, its accent coagulates test-results and sees Table 3.The dosage of admixture is by cement normal consistency water consumption, forms in conjunction with the admixture concentration conversion.It is few that admixture is used, and needs other thin up.
Table 3
Sample The admixture amount ratio Denseness Fineness Initial set Final set Security
Go out to grind cement 25.75% 2.9% 1 hour 56 minutes 2 hours 56 minutes Qualified
Add NO1 1：1 25.75% 2.9% ＜5 minutes ＜9 minutes Qualified
Add NO4 1：1 25.75% 2.9% ＜5 minutes ＜9 minutes Qualified
Add NO2 0.85:1 25.75% 2.9% ＜15 minutes ＜45 minutes Qualified
Add NO5 0.80:1 25.75% 2.9% ＜15 minutes ＜45 minutes Qualified
Add NO3 0.80:1 25.75% 2.9% ＜30 minutes ＜60 minutes Qualified
Add NO5 0.76:1 25.75% 2.9% ＜30 minutes ＜60 minutes Qualified
Add NO1 0.70:1 25.75% 2.9% ＜60 minutes ＜1 hour 30 minutes Qualified
Add NO2 0.75:1 25.75% 2.9% ＜60 minutes ＜1 hour 30 minutes Qualified
As seen from the table, after going out to grind in the cement to add this admixture, initial set, final setting time significantly reduce.Wherein initial set＜5 minute, final set＜9 segregation junction speed, be used in leak and the crack of blocking a large amount of water bursts, emit water as water pipe, water tower, dykes and dams, high-pressure water pipe, need obstruction place immediately.＜15 minutes,＜45 minutes, be used for repairing and stoppage engineering, as tunnel, duct, coalpit, the pit place that leaks.＜30 minutes,＜60 minutes, be mainly used in to transfer and coagulate engineering, the salvaging that need be delivered for use in limited time as fortification in the water etc.＜60 minutes,＜1 hour 30 minutes, in order to improve based on the performance of the cement of low index of waste material and to be used for bridge pier, Yan Di, the tight engineering of dykes and dams equal time requirement.
Add this admixture NO1 number in the dress bag cement of denseness 25%, fineness 3.7%, its initial set, final setting time see Table 4, the intensity detection data see Table 5.
Figure 931075718_IMG2
Annotate: to coagulate soon, rapid hardening cement, only need do strength test in 2-4 hour, 1 day, 3 days, do not need 7 days intensity, so do not do.28 days intensity requires just to do to do then according to customer requirements.
From table 5, as seen, add behind this admixture one sky intensity near the double-quick cement of powder shaped.2-4 hour intensity is enough to block leak, the crack of pressure water pipe.Though 28 days intensity is lower than former contrast sample, after 2 months, with its clean slurry concrement and former state contrast, its degree of compactness, flintiness be considerably beyond contrasting sample, sound metallike when beaing, and as seen the performance in its later stage improves along with the increase of time.
In the dress bag cement of denseness 25.5%, fineness 3.3%, add this admixture NO1 number, its initial set, final setting time see Table 6, and the intensity detection data see Table 7.
Figure 931075718_IMG3
Annotate: intensity was not done in 7 days, and reason is the same.
As seen from the table, add this admixture, and thin up, adjusted and coagulated speed soon, but do not influenced intensity, its day intensity near No. 150, double quick, but be different from the agent of anxious knot.
This admixture material cost is low, and preparation is simple, applicable to silicate cement, special cement and cement of low index fast that be mixed with a large amount of waste materials coagulate, strong, waterproof early, be used to rush to repair and require the engineering of early strength, be used for leak stopping, transfer and coagulate engineering.

Claims (3)

1, cement, concrete coagulate soon, morning is strong, water resisting admixture, it is characterized in that admixture is a deep dark liquid, formulated by basic material, inorganic salt material, catalyzer through heatable catalytic, its weight % ratio is: basic material 2-7, inorganic salt material 0.2-1.0, catalyzer 0.12-0.24 adds water to 100%.
2, admixture according to claim 1 is characterized in that basic material is water glass, yellow soda ash, sodium hydroxide, potassium hydroxide, unslaked lime or the combination of part wherein,
The inorganic salt material is alum salt, ferric sulfate, and alum salt can be alum, blue alum, purple alum,
Catalyzer is a trolamine.
3, cement, concrete coagulate soon, morning is strong, the preparation technology of water resisting admixture, it is characterized in that with weight ratio % being earlier: the alum salt of 2-7 basic material 0.2-1.0, ferric sulfate are behind grinding, mixing, adding water to total amount is 100, heating, add trolamine, after carrying out catalyzed reaction 10-30 minute under 40 °-80 ℃, cooling gets product.
CN 93107571 1993-06-28 1993-06-28 Cement, concrete coagulate soon, early strong, water resisting admixture and preparation technology thereof Pending CN1084146A (en)

Priority Applications (1)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1533287A1 (en) * 2003-11-21 2005-05-25 W.R. Grace & Co.-Conn. Dispersion comprising tin sulfate or ferrous sulfate for reducing chromate in cement
CN108314387A (en) * 2018-05-08 2018-07-24 唐世群 A kind of concrete mortar of good water-retaining property
CN109970423A (en) * 2019-04-30 2019-07-05 杭州一碳化工研究所有限公司 Non-fired and non-steamed bricks and preparation method thereof

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1533287A1 (en) * 2003-11-21 2005-05-25 W.R. Grace & Co.-Conn. Dispersion comprising tin sulfate or ferrous sulfate for reducing chromate in cement
US7128782B2 (en) 2003-11-21 2006-10-31 W.R. Grace & Co.-Conn. Sulfate dispersion chromate reducer
JP2007522061A (en) * 2003-11-21 2007-08-09 ダブリュー・アール・グレイス・アンド・カンパニー−コネチカット Sulfate-dispersed chromate reducing agent
JP4712719B2 (en) * 2003-11-21 2011-06-29 ダブリュー・アール・グレイス・アンド・カンパニー−コネチカット Sulfate-dispersed chromate reducing agent
CN108314387A (en) * 2018-05-08 2018-07-24 唐世群 A kind of concrete mortar of good water-retaining property
CN109970423A (en) * 2019-04-30 2019-07-05 杭州一碳化工研究所有限公司 Non-fired and non-steamed bricks and preparation method thereof

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