CN103864386B - Inorganic water-proofing material for stopping leak of self-healing property slow setting and preparation method thereof - Google Patents

Inorganic water-proofing material for stopping leak of self-healing property slow setting and preparation method thereof Download PDF

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CN103864386B
CN103864386B CN201410112311.7A CN201410112311A CN103864386B CN 103864386 B CN103864386 B CN 103864386B CN 201410112311 A CN201410112311 A CN 201410112311A CN 103864386 B CN103864386 B CN 103864386B
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water
self
proofing material
slow setting
stopping leak
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CN103864386A (en
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黄莉恒
林杰生
章毅
梁志豪
梁斌
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CARPOLY CHEMICAL GROUP Co Ltd
GUANGDONG CARPOLY SCIENCE & TECHNOLOGY MATERIAL Co Ltd
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CARPOLY CHEMICAL GROUP Co Ltd
GUANGDONG CARPOLY SCIENCE & TECHNOLOGY MATERIAL Co Ltd
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Abstract

The invention discloses inorganic water-proofing material for stopping leak of a kind of self-healing property slow setting and preparation method thereof, the inorganic water-proofing material for stopping leak of described self-healing property slow setting comprises the pulvis and liquor that weight ratio is 2.3-3.3, described pulvis comprise silicate cement, aluminosulfate cement, gypsum, quartz sand, dry powder defoamer, organosilicon moisture repellent, hardening accelerator, water reducer, retardant, promoting agent, described promoting agent molecular structural formula be Ca (O-SiR-OH) 2, wherein R is alkyl group; Described liquor comprises polymer emulsion, defoamer, mildew-resistant algaecide, liquid water reducer, water.The inorganic water-proofing material for stopping leak of above-mentioned self-healing property slow setting has that early anti pressured intension is high, anti-permeability performance good, the advantage of good water-proof effect, simultaneously, final setting time is short, can produce secondary crystal, automatically repair the defects such as tiny crack after the promoting agent chance water of coating containment at Defect Base place.In addition, preparation method's technique of the inorganic water-proofing material for stopping leak of above-mentioned self-healing property slow setting is simple, easily operates.

Description

Inorganic water-proofing material for stopping leak of self-healing property slow setting and preparation method thereof
Technical field
The present invention relates to waterproof paint field, particularly relate to inorganic water-proofing material for stopping leak of self-healing property slow setting and preparation method thereof.
Background technology
The life-span how effectively solving building structure seepage and prolongation buildings is a difficult problem for Building technology always.Except reaching except water proof anti-seepage by compact structure, the use of water-proof material also becomes requisite waterproof means.
Usually, what water-proof material adopted is cement-base infiltration crystallization water-proof material, and its mechanism of action is that the component chance water in material forms water-fast xln, filling capillary channel, thus makes the fine and close waterproof of concrete.But this water-proof material final setting time is long, early anti pressured intension is low, anti-permeability performance is poor, delay subsequent technique construction.Meanwhile, waterproofing work mostly is disguised engineering, once after waterproof layer destroyed by water permeation, place where troops were originally stationed water layer, due to capped, be difficult to repair, can not form integral waterproofing layer effect.
Summary of the invention
Based on this, be necessary to provide that a kind of final setting time is short, early anti pressured intension is high, anti-permeability performance is good, the inorganic water-proofing material for stopping leak of self-healing property slow setting of good water-proof effect and preparation method.
The inorganic water-proofing material for stopping leak of a kind of self-healing property slow setting, comprises pulvis and liquor that weight ratio is 2.3-3.3, by weight,
Described pulvis comprises following component:
The molecular structural formula of silicate cement 40-45 part, aluminosulfate cement 12-15 part, gypsum 3-5 part, quartz sand 29-40.25 part, dry powder defoamer 0.1-0.2 part, organosilicon moisture repellent 0.2-0.3 part, hardening accelerator 0.15-0.2 part, water reducer 0.2-0.3 part, retardant 0.2-0.3 part, promoting agent 3-6 part, described promoting agent is Ca (O-SiR-OH) 2, wherein R is alkyl group;
Described liquor comprises following component:
Polymer emulsion 14.5-16.5 part, defoamer 0.05-0.1 part, mildew-resistant algaecide 0.1-0.2 part, liquid water reducer 0.1-0.2 part, water 19-21.3 part.
The mechanism of action of the promoting agent in the inorganic water-proofing material for stopping leak of above-mentioned self-healing property slow setting is as follows:
1, the forming process of xln
The molecular structural formula of promoting agent is Ca (O-SiR-OH) 2, its molecular weight is little, simultaneously containing hydrophobic grouping (-R-) and hydrophilic radical (-OH).Wherein, hydrophobic grouping (-R-) is alkyl group.The wetting ability of promoting agent is greater than hydrophobicity, water soluble, in a dry environment polycondensation crystalline polamer does not occur, and polycondensation crystalline polamer occurs in a humid environment, forms water-fast xln when pH value declines, and there is catalyzer (SiO 3 2-) existence under, reaction formula is as follows:
nCa(O-SiR-OH) 2+nCa(O-SiR-OH) 2+2nCa(OH) 2
Ca(OH) 2+CO 2→CaCO 3+H 2O
As can be seen here, along with the increase of n, xln molecular weight increases, and hydrophilic radical reduces, and hydrophobicity is greater than wetting ability, and now xln is water insoluble, is preferentially formed in Defect Base place (crackle or space), strengthens the anti-permeability performance of basic unit's liquid towards water, and reaches good block-water effect.Wherein, when n is 500-100, block-water effect is best.
Test shows, Agent Powder is pungent, its pH >=12.Agent Powder is in alkalescence (the pH > 7) environment of drying, and good stability, polycondensation crystalline polamer can not occur.
2, the stability of xln
Xln stability determined by the size of polymerization degree n.When the alkalescence of activator solution environment reduces, when the amplitude of acid enhancing (namely pH value declines) is large, then crystalline growth velocity is fast, and polymerization degree n is very large, and hydrophilic radical is few, and hydrophobicity is far longer than wetting ability, and xln is steady state, water insoluble.When the alkalescence of active matter solution environmental reduces, the acid amplitude hour strengthening (namely pH value declines), then crystalline growth velocity is slower, polymerization degree n is little, hydrophobic grouping is few, and hydrophobicity is slightly larger than wetting ability, and xln is unsteady state, and being slightly soluble in water, the xln being slightly soluble in water continues to be polymerized the stable xln of formation under weakly alkaline or acidity (pH value is less than 10) condition.
3, the condition of xln formation
Aqueous surfactant solutions increases along with concentration and polycondensation crystallization occurs---crystalline active masterbatch in cement hydration process or when constructing on not dry cement products wetted surface active matter be dissolved in the water, and intersperse among in water-proof material with water, but along with the time increases, moisture take part in the hydration reaction of cement, and some water is volatilized lost, aqueous surfactant solutions concentration is caused to increase and polycondensation crystallization occurs.
Alkalescence reduces (namely pH value reduces) and polycondensation crystallization occurs---and in coating application process, activator solution absorbs the CO in air 2and acidity in surrounding environment or weakly alkaline material, the pH value of activator solution is reduced, when solution ph lower than 12 time, active small molecular will autopolymerization gradually.
(SiO in silicate cement 3 2-) be active matter polyreaction catalyzer---the hydration process of cement not only seizes the portion of water of activator solution, also for active agent polymeric provides good condition, thus play the effect of catalyzed polymerization.
The feature of organosilicon moisture repellent can form the film hydrophobic barrier with " respiratory " at masonry, concrete, mortar and various coatingsurface.In water-proof material, add organosilicon moisture repellent can give coating good hydrophobic nature, plays many-sided provide protection to buildings.
The Main Function of hardening accelerator accelerates hydrated cementitious speed, promotes the development of water-proof material early strength.
Water reducer refers under concrete workability and the constant condition of cement consumption, can reduce mixing water amount, improve concrete strength.
Retardant refers to and delays concrete coagulating time and the admixture had no significant effect later strength.Its main component is polyol, hydroxycarboxylate and derivative, high sugared sulfonated lignin.
Defoamer can carry out deaeration to the microvesicle produced in material of construction construction or production process, and makes product have good persistence and shear stability and gain in strength.Adding of defoamer can make water-proof material avoid occurring bubble when constructing, and improves the decorative effect of water-proof material.The general organo-siloxane of kind of defoamer, polyethers, compound containing amine, imines and amides.
Mildew-resistant algaecide can be killed the microorganism in water-proof material, prevents the raw algae of water-proof material mildew in hygrothermal environment.
Wherein in an embodiment, described pulvis comprises following component:
Silicate cement 41-43 part, aluminosulfate cement 12-14 part, gypsum 3-5 part, quartz sand 35-38 part, dry powder defoamer 0.1-0.2 part, organosilicon moisture repellent 0.2-0.3 part, hardening accelerator 0.15-0.2 part, water reducer 0.2-0.3 part, retardant 0.2-0.3 part, promoting agent 3-4 part.
Wherein in an embodiment, described liquor comprises following component:
Polymer emulsion 15 parts, defoamer 0.06-0.08 part, mildew-resistant algaecide 0.1-0.2 part, liquid water reducer 0.1-0.2 part, water 19-20 part.
Wherein in an embodiment, described dry powder defoamer is organosilicon powder defoamer, and described hardening accelerator is Quilonum Retard, and described water reducer is the sulfonated polycondensate powder of melamine type, and described retardant is Sunmorl N 60S and tartrate.
Wherein in an embodiment, described polymer emulsion is styrene-butadiene emulsion, and described defoamer is mineral oil defoaming agent, and described mildew-resistant algaecide is isothiazolinone, and described liquid water reducer is polycarboxylate water-reducer.
The preparation method of the inorganic water-proofing material for stopping leak of above-mentioned self-healing property slow setting, comprises the following steps:
(1) by weight, silicate cement 40-45 part is taken, aluminosulfate cement 12-15 part, quartz sand 29-40.25 part, add the quartz sand of the silicate cement of 50% weight part and the aluminosulfate cement of 50% weight part and 98% weight part, more slowly drop into 3-5 part gypsum, obtain mixture A;
Adopt quartz sand mixing 0.1-0.2 part dry powder defoamer of 2% weight part, 0.2-0.3 part organosilicon moisture repellent, 0.15-0.2 part hardening accelerator, 0.2-0.3 part water reducer, 0.2-0.3 part retardant, 3-6 part promoting agent, obtains mixture B;
Mixture A and mixture B is mixed, then adds the silicate cement of 50% weight part and the aluminosulfate cement of 50% weight part, stir, obtain pulvis;
(2) water of 19-21.3 weight part is taken, 14.5-16.5 part polymer emulsion is dropped in the water of 50% weight part, 3-5 minute is disperseed under the rotating speed of 300-500rpm, under the rotating speed of 300-500rpm, slowly add the water of remaining 50% weight part again, 0.05-0.1 part defoamer, 0.1-0.2 part mildew-resistant algaecide, 0.1-0.2 part liquid water reducer, obtains liquor;
(3) described pulvis and described liquor are mixed according to the weight ratio of 2.3-3.3, obtain the inorganic water-proofing material for stopping leak of self-healing property slow setting.
Wherein in an embodiment, described dry powder defoamer is organosilicon powder defoamer, and described hardening accelerator is Quilonum Retard, and described water reducer is the sulfonated polycondensate powder of melamine type, and described retardant is Sunmorl N 60S and tartrate.
Wherein in an embodiment, described polymer emulsion is styrene-butadiene emulsion, and described defoamer is mineral oil defoaming agent, and described mildew-resistant algaecide is isothiazolinone, and described liquid water reducer is polycarboxylate water-reducer.
The inorganic water-proofing material for stopping leak of above-mentioned self-healing property slow setting adopts silicate cement-aluminosulfate cement-dehydrated gyp-three-component compound system as the main composition of inorganic leak stopping, has good early strength and impermeability.The promoting agent mixed is after chance water, aqueous surfactant solutions concentration increases and polycondensation crystallization generation crystalline active masterbatch occurs, this masterbatch in cement hydration process or when constructing on not dry cement products wetted surface active matter be dissolved in the water, and intersperse among in water-proof material with water, but along with the time increases, moisture take part in the hydration reaction of cement, and some water is volatilized lost, causes aqueous surfactant solutions concentration increase and polycondensation crystallization occurs.And silicate cement not only seizes the portion of water of aqueous surfactant solutions in hydration process, and catalyzer can also be provided for polycondensation crystallization--SiO 3 2-, thus play the effect of catalyzed polymerization.
In cement hydration process, when having water, promoting agent is water-soluble, and enters the space of coating and basic unit with water-band.Along with pH value declines, at silicate cement (SiO 3 2-) catalysis under, promoting agent is progressively polymerized in the hole of coating and basic unit, produces xln.The xln that promoting agent produces is the acicular structure of free-running property, but contains more hydrophobic grouping due to macromole or high molecular xln, causes xln water insoluble.Like this, water-fast xln can strengthen the anti-permeability performance of basic unit's liquid towards water greatly to the filling of Defect Base, and reaches good block-water effect.
Because the crystallization velocity of the curing speed specific activity agent of cement is fast, so there is active matter not greatly to be polymerized in cement based coating by shutoff or only to produce deep aggregation phenomenon, cement-base infiltration crystallization coating is made still to have certain activity like this, once there is cracking in cement basic layer, when moist or moisture, its promoting agent discharges automatically, can again enter in crack to be polymerized further gradually with water-band and produce stable xln with the passage of shutoff water, thus the effect played blocking and automatically supply a gap, water-repellancy increases in time and strengthens.
The inorganic water-proofing material for stopping leak of above-mentioned self-healing property slow setting is the tri compound gelling system based on silicate cement, the grog C of silicate cement 3a(tricalcium aluminate), add a certain amount of aluminosulfate cement (CA), be equivalent to introduce the quite high CS(anhydrous slufuric acid aluminium calcium of early activity), and gypsum (CaSO 4) add also to play system and promote the effect of hydration reaction, meanwhile, the effect of stabilising system reaction and resisted shrinkage can also be played, the ettringite C of generation 3a3CaSO 432H 2o accelerates the early hydration speed of system, obviously shortens the time of coagulation of the inorganic water-proofing material for stopping leak of self-healing property slow setting.Wherein, the reaction process of the hydration reaction of above-mentioned ternary gelling system is as follows:
One,
C 3A+3CaSO 4+32H 2O→C 3A·3CaSO 4·32H 2O
3CA+3CS+35H 2O→C 3A·3CaSO 4·32H 2O+2AH 3
3CA+9CS+6CH+9OH→C 3A·3CaSO 4·32H 2O
Two,
CA+CH+H 2O→C 4AH 13
CA+10H 2O→CAH 10
C 3S+H 2O→C-S-H
C 3a is tricalcium aluminate, and CA is monocalcium aluminate, C 3s is tricalcium silicate, and CH is calcium hydroxide, C 3a3CaSO 432H 2o is ettringite,
Wherein, C 4aH 13, CAH 10, C-S-H is six cubes of centrums, structure is very stable, can the intensity of reinforced mortar.
Hydration reaction generates ettringite (C 3a3CaSO 432H 2o), the principal feature of ettringite is: form speed fast, and the ability of Bound moisture is strong, has shrinkage-compensating ability.The quick generation of ettringite, shortens the time of coagulation of system, improves the early strength of system and reduces shrinking percentage.
Therefore, the inorganic water-proofing material for stopping leak of above-mentioned self-healing property slow setting has that early anti pressured intension is high, anti-permeability performance good, the advantage of good water-proof effect, and meanwhile, the final setting time of above-mentioned water-proof material is short.And there is auto repair capacity, can produce secondary crystal at Defect Base place after the promoting agent chance water of coating containment, automatically repair the defects such as tiny crack, the change of anti-basic unit is by force.In addition, preparation method's technique of the inorganic water-proofing material for stopping leak of above-mentioned self-healing property slow setting is simple, easily operates.
Accompanying drawing explanation
Fig. 1 is the solidification comparison diagram of the inorganic water-proofing material for stopping leak of self-healing property slow setting of embodiment 1 and the common cement-base water conduction fracture of comparative example;
Fig. 2 is the self-healing property slow setting inorganic water-proofing material for stopping leak penetrant crystalline schematic diagram of embodiment 1.
Embodiment
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, are described in detail the specific embodiment of the present invention below in conjunction with accompanying drawing.Set forth a lot of detail in the following description so that fully understand the present invention.But the present invention can be much different from alternate manner described here to implement, those skilled in the art can when without prejudice to doing similar improvement when intension of the present invention, therefore the present invention is by the restriction of following public concrete enforcement.
Raw material sources used in following examples are as follows:
Silicate cement is PII42.5R silicate cement, and specific surface area is 360m 2/ kg, buys in Guangzhou Yue Bao Cement Co., Ltd or Huadu cement mill, Guangzhou or conch Cement Co., Ltd.
Aluminosulfate cement is bought in Tangshan six or nine Cement Co., Ltd, Guangxi Yun Yan special cement company limited or Yongzhou Zhong great special cement limited liability company.
Gypsum is selected domestic without water anhydrite, mainly consists of CaSO 482%, CaO1.1%.
Dry powder defoamer is organosilicon powder defoamer, selects bright icepro chemical AGITANR, P803.
Hardening accelerator is Quilonum Retard, is selected from Guangzhou Chemical Reagent Factory.
Water reducer is the sulfonated polycondensate powder of melamine type, is selected from German BASF chemistry, F10.
Sunmorl N 60S and the tartrate of retardant to be mass ratio be 1:1, be selected from Guangzhou Chemical Reagent Factory.
Promoting agent is penetrant crystalline material, is selected from times Nike 88 penetrant crystalline shaped material.
Quartz sand selects the mass percent of SiO2 to be the common quartz sand of 90%-99%, and interval fineness is 80-140 order.
Polymer emulsion is styrene-butadiene emulsion, is selected from German BASF chemistry SD623.
Defoamer is mineral oil defoaming agent, is selected from the 681F defoamer of French Rhodia.
Mildew-resistant algaecide is isothiazolinone, is selected from the MERGALK14 of Troy company of the U.S..
Liquid water reducer polycarboxylate water-reducer, selects 40% of west card 225P or BASF 2651 admittedly containing liquor.
Water is tap water.
Embodiment 1
The inorganic water-proofing material for stopping leak of a kind of self-healing property slow setting, comprise pulvis and liquor, the weight ratio of pulvis and liquor is 2.3, wherein:
Silicate cement 40kg, aluminosulfate cement 12kg, gypsum 3kg, quartz sand 29kg, dry powder defoamer 0.1kg, organosilicon moisture repellent 0.2kg, hardening accelerator 0.15kg, water reducer 0.2kg, retardant 0.2kg, promoting agent 3kg;
Polymer emulsion 16.5kg, defoamer 0.1kg, mildew-resistant algaecide 0.2kg, liquid water reducer 0.2kg, water 21.3kg.
The preparation method of the inorganic water-proofing material for stopping leak of above-mentioned self-healing property slow setting is:
(1) silicate cement of 20kg is added, the aluminosulfate cement of 6kg, and the quartz sand of 28.4kg, more slowly drop into 3kg gypsum, obtain mixture A;
Adopt the quartz sand mixing 0.1kg defoamer of 0.6kg, 0.2kg organosilicon moisture repellent, 0.15kg hardening accelerator, 0.2kg water reducer, 0.2kg retardant, 3kg promoting agent, obtains mixture B;
Mixture A and mixture B is mixed, then adds the silicate cement of 20kg and the aluminosulfate cement of 6kg, stir, obtain pulvis.
(2) in the water of 10.6kg, drop into 16.5kg polymer emulsion, disperse 5 minutes under the rotating speed of 300rpm, under the rotating speed of 300rpm, more slowly add 10.7kg water, 0.1kg defoamer, 0.2kg mildew-resistant algaecide, 0.2kg liquid water reducer, obtains liquor;
(3) by pulvis and liquor mixing, the inorganic water-proofing material for stopping leak of self-healing property slow setting is obtained.
Embodiment 2
The inorganic water-proofing material for stopping leak of a kind of self-healing property slow setting, comprise pulvis and liquor, the weight ratio of pulvis and liquor is 2.7, wherein:
Silicate cement 41kg, aluminosulfate cement 12kg, gypsum 3kg, quartz sand 35kg, dry powder defoamer 0.1kg, organosilicon moisture repellent 0.2kg, hardening accelerator 0.15kg, water reducer 0.2kg, retardant 0.2kg, promoting agent 3kg;
Polymer emulsion 15kg, defoamer 0.08kg, mildew-resistant algaecide 0.2kg, liquid water reducer 0.2kg, water 20kg.
The preparation method of the inorganic water-proofing material for stopping leak of above-mentioned self-healing property slow setting is with embodiment 1.
Embodiment 3
The inorganic water-proofing material for stopping leak of a kind of self-healing property slow setting, comprise pulvis and liquor, the weight ratio of pulvis and liquor is 3.1, wherein:
Silicate cement 43kg, aluminosulfate cement 14kg, gypsum 5kg, quartz sand 38kg, dry powder defoamer 0.2kg, organosilicon moisture repellent 0.3kg, hardening accelerator 0.2kg, water reducer 0.3kg, retardant 0.3kg, promoting agent 4kg;
Polymer emulsion 15kg, defoamer 0.06kg, mildew-resistant algaecide 0.1kg, liquid water reducer 0.1kg, water 19kg.
The preparation method of the inorganic water-proofing material for stopping leak of above-mentioned self-healing property slow setting is with embodiment 1.
Embodiment 4
The inorganic water-proofing material for stopping leak of a kind of self-healing property slow setting, comprise pulvis and liquor, the weight ratio of pulvis and liquor is 3.3, wherein:
Silicate cement 45kg, aluminosulfate cement 15kg, gypsum 5kg, quartz sand 40.25kg, dry powder defoamer 0.2kg, organosilicon moisture repellent 0.3kg, hardening accelerator 0.2kg, water reducer 0.3kg, retardant 0.3kg, promoting agent 6kg;
Polymer emulsion 14.5kg, defoamer 0.05kg, mildew-resistant algaecide 0.1kg, liquid water reducer 0.1kg, water 19kg.
The preparation method of the inorganic water-proofing material for stopping leak of above-mentioned self-healing property slow setting is with embodiment 1.
Embodiment 5 time of coagulation and early strength test
The inorganic water-proofing material for stopping leak of self-healing slow setting of embodiment 2 and the common cement-base water conduction fracture of comparative example are carried out to the test of time of coagulation, test result is as shown in table 1.
Wherein, the common cement-base water conduction fracture that comparative example is used, its component comprises silicate cement, quartz sand, calcium carbonate, fumaric acid, calcium chloride, promoting agent, Tai-Ace S 150 and defoamer, and wherein, promoting agent is Sodium hexametaphosphate 99.The function that this promoting agent does not have penetrant crystalline and automatically repairs.
And the promoting agent in embodiment 2 can infiltrate basic unit's inside formation acicular crystals with water in the inorganic water-proofing material for stopping leak of self-healing slow setting, the defects such as the pore of plugging cement basic unit and crackle, thus the impermeability pressure of this water-proof material is strengthened, to reach lasting waterproof effect, and extend its work-ing life, can not intensity be reduced again simultaneously.Can produce secondary crystal at Defect Base place after the active substance chance water of coating containment, have the function of automatically repairing the defects such as tiny crack, the change of anti-basic unit by force.
The inorganic water-proofing material for stopping leak of self-healing slow setting of embodiment 2 and the ortho-water of comparative example under table 1 differing temps
Table time of coagulation of mud based penetrant crystalline water-proof material
As can be seen from Table 1, presetting period and the final setting time of the inorganic water-proofing material for stopping leak of self-healing slow setting of embodiment 2 are all short than common cement-base water conduction fracture, and the shrinking percentage of the water-proof material of embodiment 2 is lower than the shrinking percentage of the water-proof material of comparative example by 63.6%.
The early strength test chart of the inorganic water-proofing material for stopping leak of self-healing slow setting of table 2 embodiment 2 and the common cement-base water conduction fracture of comparative example
As can be seen from Table 2, the ultimate compression strength of the inorganic water-proofing material for stopping leak of self-healing slow setting of embodiment 2 and folding strength are all higher than the common cement-base water conduction fracture of comparative example.
The solidification form of the inorganic water-proofing material for stopping leak of self-healing slow setting of embodiment 2 and the common cement-base water conduction fracture solidification form of comparative example are as shown in Figure 1.Wherein, the left side of Fig. 1 is the solidification aspect graph of the inorganic water-proofing material for stopping leak of self-healing slow setting of embodiment 2, and right side is the solidification aspect graph of the common cement-base water conduction fracture of comparative example.
As seen from Figure 1, adopting the inorganic water-proofing material for stopping leak of self-healing slow setting of embodiment 2 because adopting tri compound gelling system, accelerating system early hydration speed, just solidified completely at 3-6 hour.
Embodiment 6 product performance are tested
Test according to the inorganic water-proofing material for stopping leak of self-healing slow setting of the inorganic water-proofing material for stopping leak of GB GB23440-2009 to embodiment 2, test result is as shown in table 3.
Test according to the inorganic water-proofing material for stopping leak of self-healing slow setting of GB18445-2001 cement-base infiltration crystallization water-proof material to embodiment 2, test result is as shown in table 4.
The performance of the inorganic water-proofing material for stopping leak of self-healing slow setting of table 3 embodiment 2
The performance of the inorganic water-proofing material for stopping leak of self-healing slow setting of table 4 embodiment 2
From table 3 and table 4, the performance index of the inorganic water-proofing material for stopping leak of self-healing slow setting of embodiment 2 meet the regulation of GB23440-2009 and GB18445-2001.Have that final setting time is short, ultimate compression strength is high, anti-permeability performance is good and the advantage of good water-proof effect.
As shown in Figure 2, the inorganic water-proofing material for stopping leak of self-healing slow setting of embodiment 2 can be coated on concrete substrate and carry out waterproofing protection, and blocking hole in seam is infiltrated in the crystallization of generation, stops infiltration.And when crack appears in concrete substrate again, the promoting agent be enclosed in concrete base layer discharges automatically, can enter in crack to be polymerized further gradually with water-band and produce stable xln to seal the passage of water, thus the effect played blocking and automatically supply a gap, complete secondary reparation.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.

Claims (8)

1. the inorganic water-proofing material for stopping leak of self-healing property slow setting, is characterized in that, comprises pulvis and liquor that weight ratio is 2.3-3.3, by weight,
Described pulvis comprises following component:
The molecular structural formula of silicate cement 40-45 part, aluminosulfate cement 12-15 part, gypsum 3-5 part, quartz sand 29-40.25 part, dry powder defoamer 0.1-0.2 part, organosilicon moisture repellent 0.2-0.3 part, hardening accelerator 0.15-0.2 part, water reducer 0.2-0.3 part, retardant 0.2-0.3 part, promoting agent 3-6 part, described promoting agent is Ca (O-SiR-OH) 2, wherein R is alkyl group;
Described liquor comprises following component:
Polymer emulsion 14.5-16.5 part, defoamer 0.05-0.1 part, mildew-resistant algaecide 0.1-0.2 part, liquid water reducer 0.1-0.2 part, water 19-21.3 part;
The preparation method of the inorganic water-proofing material for stopping leak of this self-healing property slow setting comprises the steps:
(1) by weight, take silicate cement 40-45 part, aluminosulfate cement 12-15 part, quartz sand 29-40.25 part, add the quartz sand of the silicate cement of 50% weight part and the aluminosulfate cement of 50% weight part and 98% weight part, slowly drop into 3-5 part gypsum again, obtain mixture A;
Adopt quartz sand mixing 0.1-0.2 part dry powder defoamer of 2% weight part, 0.2-0.3 part organosilicon moisture repellent, 0.15-0.2 part hardening accelerator, 0.2-0.3 part water reducer, 0.2-0.3 part retardant, 3-6 part promoting agent, the molecular structural formula of described promoting agent is Ca (O-SiR-OH) 2, wherein R is alkyl group, obtains mixture B;
Mixture A and mixture B is mixed, then adds the silicate cement of 50% weight part and the aluminosulfate cement of 50% weight part, stir, obtain pulvis;
(2) water of 19-21.3 weight part is taken, 14.5-16.5 part polymer emulsion is dropped in the water of 50% weight part, 3-5 minute is disperseed under the rotating speed of 300-500rpm, under the rotating speed of 300-500rpm, slowly add the water of remaining 50% weight part again, 0.05-0.1 part defoamer, 0.1-0.2 part mildew-resistant algaecide, 0.1-0.2 part liquid water reducer, obtains liquor;
(3) be that 2.3-3.3 mixes by described pulvis and described liquor according to weight ratio, obtain the inorganic water-proofing material for stopping leak of self-healing property slow setting.
2. the inorganic water-proofing material for stopping leak of self-healing property slow setting according to claim 1, it is characterized in that, described pulvis comprises following component:
Silicate cement 41-43 part, aluminosulfate cement 12-14 part, gypsum 3-5 part, quartz sand 35-38 part, dry powder defoamer 0.1-0.2 part, organosilicon moisture repellent 0.2-0.3 part, hardening accelerator 0.15-0.2 part, water reducer 0.2-0.3 part, retardant 0.2-0.3 part, promoting agent 3-4 part.
3. the inorganic water-proofing material for stopping leak of self-healing property slow setting according to claim 1, it is characterized in that, described liquor comprises following component:
Polymer emulsion 15 parts, defoamer 0.06-0.08 part, mildew-resistant algaecide 0.1-0.2 part, liquid water reducer 0.1-0.2 part, water 19-20 part.
4. the inorganic water-proofing material for stopping leak of self-healing property slow setting according to claim 1, it is characterized in that, described dry powder defoamer is organosilicon powder defoamer, and described hardening accelerator is Quilonum Retard, described water reducer is the sulfonated polycondensate powder of melamine type, and described retardant is Sunmorl N 60S and tartrate.
5. the inorganic water-proofing material for stopping leak of self-healing property slow setting according to any one of claim 1-4, it is characterized in that, described polymer emulsion is styrene-butadiene emulsion, and described defoamer is mineral oil defoaming agent, described mildew-resistant algaecide is isothiazolinone, and described liquid water reducer is polycarboxylate water-reducer.
6. a preparation method for the inorganic water-proofing material for stopping leak of self-healing property slow setting, is characterized in that, comprise the following steps:
(1) by weight, take silicate cement 40-45 part, aluminosulfate cement 12-15 part, quartz sand 29-40.25 part, add the quartz sand of the silicate cement of 50% weight part and the aluminosulfate cement of 50% weight part and 98% weight part, slowly drop into 3-5 part gypsum again, obtain mixture A;
Adopt quartz sand mixing 0.1-0.2 part dry powder defoamer of 2% weight part, 0.2-0.3 part organosilicon moisture repellent, 0.15-0.2 part hardening accelerator, 0.2-0.3 part water reducer, 0.2-0.3 part retardant, 3-6 part promoting agent, the molecular structural formula of described promoting agent is Ca (O-SiR-OH) 2, wherein R is alkyl group, obtains mixture B;
Mixture A and mixture B is mixed, then adds the silicate cement of 50% weight part and the aluminosulfate cement of 50% weight part, stir, obtain pulvis;
(2) water of 19-21.3 weight part is taken, 14.5-16.5 part polymer emulsion is dropped in the water of 50% weight part, 3-5 minute is disperseed under the rotating speed of 300-500rpm, under the rotating speed of 300-500rpm, slowly add the water of remaining 50% weight part again, 0.05-0.1 part defoamer, 0.1-0.2 part mildew-resistant algaecide, 0.1-0.2 part liquid water reducer, obtains liquor;
(3) be that 2.3-3.3 mixes by described pulvis and described liquor according to weight ratio, obtain the inorganic water-proofing material for stopping leak of self-healing property slow setting.
7. the preparation method of the inorganic water-proofing material for stopping leak of self-healing property slow setting according to claim 6, it is characterized in that, described dry powder defoamer is organosilicon powder defoamer, described hardening accelerator is Quilonum Retard, described water reducer is the sulfonated polycondensate powder of melamine type, and described retardant is Sunmorl N 60S and tartrate.
8. the preparation method of the inorganic water-proofing material for stopping leak of self-healing property slow setting according to claim 6, it is characterized in that, described polymer emulsion is styrene-butadiene emulsion, described defoamer is mineral oil defoaming agent, described mildew-resistant algaecide is isothiazolinone, and described liquid water reducer is polycarboxylate water-reducer.
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