CN108191296A - A kind of concrete waterproofer - Google Patents
A kind of concrete waterproofer Download PDFInfo
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- CN108191296A CN108191296A CN201810245487.8A CN201810245487A CN108191296A CN 108191296 A CN108191296 A CN 108191296A CN 201810245487 A CN201810245487 A CN 201810245487A CN 108191296 A CN108191296 A CN 108191296A
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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
- 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)
- Epoxy Resins (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of concrete waterproofers, include each component of following mass percentage：Sodium methyl silicate calcium hydroxide composite solution 50 60%, sodium silicate solution 20 30%, sodium citrate 1 3%, triethanolamine 2 3%, hydroxypropyl methyl cellulose 2 5%, tackifier 80,A51 0.3 0.6%, pectin 2 3%, the siliceous waterproofing agent 5% of JX cracking resistances, aluminium sulfide 1 2%, tert-butyl diphenyl chlorosilane 0.2 0.5%, abietyl hyperbranched epoxy resin 1 3%.The present invention mixes aluminium sulfide, tert-butyl diphenyl chlorosilane, abietyl hyperbranched epoxy resin, sodium metasilicate, sodium methyl silicate calcium hydroxide mixed liquor and other raw materials, cross-linked network structure is formed by abietyl hyperbranched epoxy resin in early period, it being capable of waterproof, there are time enough to supply crystal growth, it is slower to solve waterproof effect appearance, needs the maintenance problem of long period.
Description
Technical field
The invention belongs to building material technical fields, and in particular to a kind of concrete waterproofer.
Background technology
Waterproof is to improve the important measures of cement concrete constructions durability, even essential measure.Cement concrete knot
The water resistance of structure substantially determines its endurance quality.Water is to cause cement concrete constructions and reinforced concrete structure durable
Property damage important substance.Either soft water erosion, freeze-thaw damage, alkali, steel bar corrosion and the sulphur of cement concrete
Hydrochlorate corrosion etc. or the reinforcing bar oxidation corrosion in cement concrete or even water conservancy project, the corrosion of maritime structrue, all be unable to do without water
Effect, without the participation of water, most of corrode hardly generates.For the ratio of mud in the cement concrete of 0.5-0.7, water
After change, voidage is 16% or so.In addition, due in cement concrete between aggregate and cementitious material it is that may be present micro-
Crack, moisture can deepen continuously in cement concrete, participate in the corrosion to reinforcing bar in cement concrete or cement concrete.For
The invasion of moisture is prevented, waterproofing agent is added in cement concrete, forms compactness concrete or hydrophobic concrete to reach
The purpose of waterproof is a kind of effective technological approaches.
At present, the mainly inorganic or organic waterproofing agent sold on China construction market, inorganic water-proof agent are primarily referred to as
It by mixing silicate, molysite and villaumite etc., reacts with the hydrated product in concrete and generates colloid, block in concrete
Portion's hole, so as to improve the impermeability of concrete, but the impervious water resistance of these waterproof materials is poor, waterproof layer durability
It is poor, and without self-healing performance, be limited thereby using range.Organic waterproof agent is primarily referred to as organic matter as main carriers
Waterproofing agent, such as waterproofing agent of organosilicon.Waterproofing agent of organosilicon has very low surface tension, can reduce the surface energy of concrete, and
Hydrophobic film can be formed in the range of concrete surface certain depth, make it have outstanding hydrophobicity；To concrete also simultaneously
There is " ventilated ", reduce internal water and waterproof layer is washed away.But there are still following several for waterproofing agent of organosilicon
Problem, as lotion is unstable, alkali resistance is poor, containing the high organic matter of a large amount of volatility, self-healing performance it is poor and with when
Between extend, waterproof effect can continuously decrease.
Cementitious capillary waterproofing material has been gradually appeared in recent years, is for base with portland cement, quartz sand etc.
Material, a kind of novel rigid waterproof material of incorporation active chemistry composition.Its mechanism of action is active chemistry after meeting water
With the Ca (OH) generated in cement hydration process2Reaction, generates gelinite not soluble in water, as gel of calcium silicate and entringite are brilliant
Body etc. so as to block internal void, closes capillary porosity duct, increases compactness, and formation combines together permanent with concrete
Waterproof layer is sealed, improves cement concrete durability.Compared with inorganic water-proof agent, organic waterproof agent, infiltration crystallization type water-proof
Agent has good waterproof ability, self-healing property and durability, this is by chemical reaction, improves entire matrix water resistance
As a result.But the crystallization for playing waterproof action is penetrated into structure in cementitious capillary waterproofing material to extraneous various shakes
Dynamic, very sensitive including vibrations caused by temperature change, water temperature variation and machinery etc., these vibrations may cause crystalline solid tear type
The water passage of Cheng Xin, causes water-proof function to be lost；Crystal type product reaches waterproof purpose by crystalline growth, and crystalline solid is given birth to
Length needs the regular hour, shows on engineer application to be exactly the slow of waterproof effect appearance, needs the maintenance of long period
Time.
Number of patent application CN201510598088.6 discloses a kind of novel permeable crystallization water, and the waterproofing agent is
It is made of each component of following weight：10~20 parts of sodium metasilicate, 2~5 parts of sodium methyl silicate, 1~5 part of sodium alginate,
5~8 parts of gelatin, 1~4 part of dodecyl ethyoxyl sulfobetaines, 1~3 part of sodium carbonate, 1~3 part of sodium citrate, three ethyl alcohol
2~3 parts of amine, 4~9 parts of alum, 2~5 parts of calcium sulfate, 1~3 part of Sodium Polyacrylate, 2~4 parts of calcium lignosulfonate, hydroxyl second
2~6 parts of ylmethyl cellulose, 3~6 parts of calcium hydroxide, 1~3 part of boric acid, 55~85 parts of water.The waterproofing agent and surface of base
Caking property is poor, needs to handle surface, exposes fresh concrete, and surface treatment is time-consuming and laborious；By crystalline growth
Reach waterproof purpose, and crystalline solid growth needs the regular hour, waterproof effect occurs slow, need the long period
Curing time.
Invention content
The purpose of the present invention is overcome the deficiencies of the prior art and provide a kind of concrete waterproofer.
The present invention provides a kind of concrete waterproofer, includes each component of following mass percentage：Sodium methyl silicate-hydrogen
Calcium oxide composite solution 50-60%, sodium silicate solution 20-30%, sodium citrate 1-3%, triethanolamine 2-3%, hydroxypropyl first
Base cellulose 2-5%, tackifier 80A510.3-0.6%, the siliceous waterproofing agent 5% of pectin 2-3%, JX cracking resistance, aluminium sulfide 1-2%,
Tert-butyl diphenyl chlorosilane 0.2-0.5%, abietyl hyperbranched epoxy resin 1-3%.
Preferably, the viscosity of the hydroxypropyl methyl cellulose is 120000-180000mPas.
Preferably, the solid content of the sodium silicate solution is 40-50%.
Preferably, the modulus of the sodium silicate solution is 2.2-3.2.
Preferably, the preparation method of the sodium methyl silicate-calcium hydroxide composite solution is：It is 10% to weigh solid content
Methane-siliconic acid sodium solution 80-90% and calcium hydroxide 10-20% is evenly stirred until no caking in a kettle, stands 1 day, takes
Top clarified solution.
Preferably, waterproofing agent of the present invention includes each component of following mass percentage：Sodium methyl silicate-hydroxide
Calcium composite solution 55%, sodium silicate solution 25%, sodium citrate 3%, triethanolamine 3%, hydroxypropyl methyl cellulose 3% increase
Stick 80A510.5%, pectin 2%, the siliceous waterproofing agent 5% of JX cracking resistances, aluminium sulfide 1%, tert-butyl diphenyl chlorosilane 0.5%,
Abietyl hyperbranched epoxy resin 2%.
The preparation method of waterproofing agent of the present invention, includes the following steps：Each raw material is weighed respectively by above-mentioned raw materials formula,
Various raw materials are sequentially added in mixing machine at normal temperatures and pressures by formula ratio, stir 25-30min, are uniformly mixed.
Heretofore described sodium silicate solution is that Guangzhou Bai Sui Chemical Co., Ltd.s provide.
Heretofore described sodium citrate is that Wujiang Jie Da Chemical Co., Ltd.s provide.
Heretofore described hydroxypropyl methyl cellulose is the model hpmc that Renqiu City Jin Yu Chemical Co., Ltd.s provide.
Heretofore described tackifier 80A51 is that Shijiazhuang Ju Ge Chemical Co., Ltd.s provide.
The heretofore described siliceous waterproofing agent of JX cracking resistances is that the JX- I that Jinhua Xin Sheng zeolites development corporation, Ltd. provides is anti-
Split siliceous waterproofing agent.
Heretofore described tert-butyl diphenyl chlorosilane is that chemical (Shanghai) Science and Technology Ltd. of nine ancient cooking vessels provides.
Heretofore described abietyl hyperbranched epoxy resin is published according to Zhao Li etc.《Thermosetting resin》On periodical
's《The synthesis of abietyl hyperbranched epoxy resin and performance study》In method obtain.
Sodium methyl silicate-calcium hydroxide composite solution：The two reaction generation complex compound forms waterproof in concrete pore
Crystalline solid realizes waterproof, self-healing hole, the effect for blocking duct.Furthermore sodium methyl silicate can not only form firm hydrophobic
Layer makes concrete have good water-proof function；The contact angle of concrete and water can also be made to reach 120 degree or more, make coagulation
Soil has the function of " ventilated ", improves concrete durability.In addition, it also has microdilatancy effect, realize that compensation is shunk, subtract
Few cracking.
Sodium silicate solution：It as crystallization reaction agent, can directly have an effect, be formed insoluble with calcium ion in concrete
Calcium carbonate crystal reduces concrete pore rate, enhances water resistance.
Sodium citrate：It can strengthen the dispersibility of micelle in concrete, delay hydration, reduce temperature peak, so as to
Reduction crack caused by the temperature difference, and be also possible that capillary crystalline waterproof agent in crackle from component to concrete substrate
It is migrated in hole, and passes through subsequent reaction generation crystallized product, the filling of crackle and hole is realized, so as to reach enhancing
Effect.In addition, sodium citrate also has chelation to the calcium ion in concrete, the potential barrier of its crystal nucleation is reduced, is accelerated
The formation of concrete hydrating product, so as to fulfill the effect of crystallization waterproof.
Triethanolamine：It is a kind of surfactant, the production of the aquations such as tricalcium silicate in concrete, tetra calcium aluminoferrite can be improved
Reaction rate between object accelerates concrete hydrating C-S-H (xCaOSiO2·yH2O) the formation of gel thickens waterproof layer, effectively
Ground improves the impermeability of concrete, so as to improve endurance performance of concrete.In addition, triethanolamine is in capillary crystalline waterproof agent
In act also as complexing auxiliary agent, acted on calcium ion in concrete, generation complexing double salt realizes closely knit hole, improves strong concrete
Degree and toughness.
Hydroxypropyl methyl cellulose：As water-retaining agent and tackifier, by macromolecule water uptake slowly releasing effect, on the one hand pass through
Water sorption slows down the evaporation of mortar surface moisture, prevent mortar due to drying is too fast and volume contraction, play cracking resistance；
On the other hand by the internal Self-curing for continuing moisture sustained release and realizing mortar, the work for ensureing mortar strength sustainable and stable development is played
With.
Tackifier 80A51：White or micro-yellow powder, it is odorless, tasteless, it is the polymer of acrylamide and its esters, water
Dissolubility, linear copolymer are highly soluble in water, insoluble in organic solvent.Strong with cutting carring ability, drilling speed is fast, mechanical wear
Less, change flow pattern, anti-shearing, high temperature resistant, salt resistance, it is anti-collapse, thickening the features such as.It therefore, can be as the flow pattern of fresh water drilling mud
Modifier, anti-sloughing agent and viscosity builders, selective flocculant etc..
The siliceous waterproofing agent of JX cracking resistances：Using high grade modenite as primary raw material, the distinctive suction of natural mordenite zeolite is utilized
The performances such as attached property, ion exchangeable, acid resistance, alkali resistance, thermal stability, the feature of environmental protection by activate, roast, be modified etc. it is a series of
Special process processing is refined to be formed.It can improve mortar, concrete workability, water-retaining property, increase density, reduce water demand ratio
<65%th, seepage-resistant grade>The permeable ratio of more than P12, mortar>350%th, concrete permeated height ratio<30%.
The present invention is by aluminium sulfide, tert-butyl diphenyl chlorosilane, abietyl hyperbranched epoxy resin, sodium metasilicate, methyl silicon
Sour sodium-calcium hydroxide mixed liquor and other raw materials mix, and in early period by abietyl hyperbranched epoxy resin, form cross-linked network
Network structure, can waterproof, there are time enough supply crystal growth, can solve waterproof effect appearance it is slow, need
The maintenance problem of long period.And the bonding of waterproofing agent and cement matrix can be improved by adding in abietyl hyperbranched epoxy resin
Property, easy to operate, the impact of resistance water that can be persistently is insensitive to extraneous various vibrations.
Epoxy resin is strong with superior thermodynamic property, good processing performance, cohesive force, but epoxy resin hardness
Low, poor toughness has cracked.Dissaving structure is introduced into epoxy resin, the toughness and hardness of resin can be improved, rosin is one
The substance of kind natural reproducible, it is cheap and easy to get, it is non-toxic and tasteless；Containing double bond, rigid hexatomic ring in its structure, tree can be enhanced
The hardness of fat, and rosin has crystallization property, for that good can enter inside concrete in waterproofing agent, close structure,
Waterproof effect greatly improves.
If sodium methyl silicate, sodium metasilicate are added in mixing together with calcium hydroxide and other raw materials, then sodium metasilicate first with
The reaction speed of calcium hydroxide reaction, later stage sodium methyl silicate and calcium hydroxide can reduce, and it is slower to be susceptible to crystalline growth, table
It is exactly the slow of waterproof effect appearance on present engineer application, needs longer curing time.The present invention is first by methane-siliconic acid
Sodium and calcium hydroxide are configured to mixed solution, in sodium citrate, triethanolamine, and the work of aluminium sulfide and tert-butyl diphenyl chlorosilane
Under, both sufficient time reaction generation complex compound is given in concrete pore, formation waterproof crystalline solid, realization waterproof,
Self-healing hole, the effect for blocking duct.Furthermore sodium methyl silicate can not only form firm water-repellent layer, have concrete
Good water-proof function；The contact angle of concrete and water can also be made to reach 120 degree or more, make concrete that there is " ventilated "
Function improves concrete durability.In addition, it also has microdilatancy effect, realize that compensation is shunk, reduce cracking.
The beneficial effects of the invention are as follows：
1st, sodium methyl silicate and calcium hydroxide are first configured to mixed solution by the present invention, in sodium citrate, triethanolamine, sulphur
Under the action of changing aluminium and tert-butyl diphenyl chlorosilane, both sufficient time reaction generation complex compound is given in concrete pore
In, waterproof crystalline solid is formed, solves the problems, such as that crystalline growth is poor compared with slow and waterproof effect.
2nd, it is of the invention by aluminium sulfide, tert-butyl diphenyl chlorosilane, abietyl hyperbranched epoxy resin, sodium metasilicate, methyl
Sodium metasilicate-calcium hydroxide mixed liquor and other raw materials mix, and in early period by abietyl hyperbranched epoxy resin, form crosslinking
Network structure, can waterproof, there are time enough supply crystal growth, can solve waterproof effect appearance it is slow, need
Want the maintenance problem of long period.
3rd, the high stability of present invention gained concrete waterproofer, it is higher with the caking property of cement matrix, it does not need to pair
Substrate surface is handled, easy to operate, the impact of resistance water that can be persistently, and insensitive to extraneous various vibrations,
Good water-proof effect and persistently, self-healing property is good, can with the original intensity of reinforced mortar concrete, improve cracking resistance.
Specific embodiment
The specific embodiment of the present invention is described further with reference to embodiment, is not therefore limited the invention to
In the range of the embodiment described.
Embodiment 1
A kind of concrete waterproofer includes each component of following mass percentage：Sodium methyl silicate-calcium hydroxide is compound
Solution 50%, sodium silicate solution 30%, sodium citrate 3%, triethanolamine 2%, hydroxypropyl methyl cellulose 2%, tackifier
80A510.6%, pectin 3%, the siliceous waterproofing agent 5% of JX cracking resistances, aluminium sulfide 1%, tert-butyl diphenyl chlorosilane 0.4%, rosin
Base hyperbranched epoxy resin 3%.Wherein the viscosity of hydroxypropyl methyl cellulose is 120000-180000mPas, and sodium metasilicate is molten
The solid content of liquid is 40%, and the modulus of sodium silicate solution is 2.2-3.2.
The preparation method of sodium methyl silicate-calcium hydroxide composite solution is：Weigh the sodium methyl silicate that solid content is 10%
Solution 80% and calcium hydroxide 20% are evenly stirred until no caking in a kettle, stand 1 day, take top clarified solution.
Preparation method：Each raw material is weighed respectively by above-mentioned raw materials formula, by formula ratio at normal temperatures and pressures by various raw materials
It sequentially adds in mixing machine, stirs 25-30min, be uniformly mixed.
Embodiment 2
A kind of concrete waterproofer includes each component of following mass percentage：Sodium methyl silicate-calcium hydroxide is compound
Solution 60%, sodium silicate solution 20%, sodium citrate 1%, triethanolamine 3%, hydroxypropyl methyl cellulose 5%, tackifier
80A510.3%, pectin 2.5%, the siliceous waterproofing agent 5% of JX cracking resistances, aluminium sulfide 2%, tert-butyl diphenyl chlorosilane 0.2%, pine
Perfume base hyperbranched epoxy resin 1%.Wherein the viscosity of hydroxypropyl methyl cellulose is 160000mPas, and sodium silicate solution is consolidated
Content is 50%, and the modulus of sodium silicate solution is 2.2-3.2.
The preparation method of sodium methyl silicate-calcium hydroxide composite solution is：Weigh the sodium methyl silicate that solid content is 10%
Solution 90% and calcium hydroxide 10% are evenly stirred until no caking in a kettle, stand 1 day, take top clarified solution.
Preparation method：Each raw material is weighed respectively by above-mentioned raw materials formula, by formula ratio at normal temperatures and pressures by various raw materials
It sequentially adds in mixing machine, stirs 25-30min, be uniformly mixed.
Embodiment 3
A kind of concrete waterproofer includes each component of following mass percentage：Sodium methyl silicate-calcium hydroxide is compound
Solution 55%, sodium silicate solution 25%, sodium citrate 3%, triethanolamine 3%, hydroxypropyl methyl cellulose 3%, tackifier
80A510.5%, pectin 2%, the siliceous waterproofing agent 5% of JX cracking resistances, aluminium sulfide 1%, tert-butyl diphenyl chlorosilane 0.5%, rosin
Base hyperbranched epoxy resin 2%.Wherein the viscosity of hydroxypropyl methyl cellulose is 180000mPas, and consolidating for sodium silicate solution contains
It is 45% to measure, and the modulus of sodium silicate solution is 2.2-3.2.
The preparation method of sodium methyl silicate-calcium hydroxide composite solution is：Weigh the sodium methyl silicate that solid content is 10%
Solution 85% and calcium hydroxide 15% are evenly stirred until no caking in a kettle, stand 1 day, take top clarified solution.
Preparation method：Each raw material is weighed respectively by above-mentioned raw materials formula, by formula ratio at normal temperatures and pressures by various raw materials
It sequentially adds in mixing machine, stirs 25-30min, be uniformly mixed.
Comparative example 1
A kind of concrete waterproofer includes each component of following mass percentage：Methane-siliconic acid sodium solution 46.75%,
Calcium hydroxide 8.25%, sodium silicate solution 25%, sodium citrate 3%, triethanolamine 3%, hydroxypropyl methyl cellulose 3% increase
Stick 80A510.5%, pectin 2%, the siliceous waterproofing agent 5% of JX cracking resistances, aluminium sulfide 1%, tert-butyl diphenyl chlorosilane 0.5%,
Abietyl hyperbranched epoxy resin 2%.Wherein the viscosity of hydroxypropyl methyl cellulose is 180000mPas, and sodium methyl silicate is molten
The solid content of liquid is 10%, and the solid content of sodium silicate solution is 45%, and the modulus of sodium silicate solution is 2.2-3.2.
Preparation method：Each raw material is weighed respectively by above-mentioned raw materials formula, by formula ratio at normal temperatures and pressures by various raw materials
It sequentially adds in mixing machine, stirs 25-30min, be uniformly mixed.
Comparative example 2
A kind of concrete waterproofer includes each component of following mass percentage：Sodium methyl silicate-calcium hydroxide is compound
Solution 55%, sodium silicate solution 25%, sodium citrate 3%, triethanolamine 3%, hydroxypropyl methyl cellulose 3%, tackifier
80A510.5%, pectin 2%, the siliceous waterproofing agent 5% of JX cracking resistances, aluminium sulfide 1%, tert-butyl diphenyl chlorosilane 0.5%, epoxy
Resin E-442% (Wuxi Chang Gan Chemical Co., Ltd.s provide).The viscosity of wherein hydroxypropyl methyl cellulose is
180000mPas, the solid content of sodium silicate solution is 45%, and the modulus of sodium silicate solution is 2.2-3.2.
The preparation method of sodium methyl silicate-calcium hydroxide composite solution is：Weigh the sodium methyl silicate that solid content is 10%
Solution 80-90% and calcium hydroxide 10-20% is evenly stirred until no caking in a kettle, stands 1 day, takes top clarified solution.
Preparation method：Each raw material is weighed respectively by above-mentioned raw materials formula, by formula ratio at normal temperatures and pressures by various raw materials
It sequentially adds in mixing machine, stirs 25-30min, be uniformly mixed.
Comparative example 3
A kind of concrete waterproofer includes each component of following mass percentage：Sodium methyl silicate-calcium hydroxide is compound
Solution 55%, sodium silicate solution 26.5%, sodium citrate 3%, triethanolamine 3%, hydroxypropyl methyl cellulose 3%, tackifier
80A510.5%, pectin 2%, the siliceous waterproofing agent 5% of JX cracking resistances, abietyl hyperbranched epoxy resin 2%.Wherein hydroxypropyl methyl
The viscosity of cellulose is 180000mPas, and the solid content of sodium silicate solution is 45%, and the modulus of sodium silicate solution is 2.2-
3.2。
The preparation method of sodium methyl silicate-calcium hydroxide composite solution is：Weigh the sodium methyl silicate that solid content is 10%
Solution 80-90% and calcium hydroxide 10-20% is evenly stirred until no caking in a kettle, stands 1 day, takes top clarified solution.
Preparation method：Each raw material is weighed respectively by above-mentioned raw materials formula, by formula ratio at normal temperatures and pressures by various raw materials
It sequentially adds in mixing machine, stirs 25-30min, be uniformly mixed.
Comparative example 4
A kind of concrete waterproofer includes each component of following mass percentage：Sodium methyl silicate-calcium hydroxide is compound
Solution 58%, sodium silicate solution 25.5%, sodium citrate 3%, triethanolamine 3%, hydroxypropyl methyl cellulose 3%, tackifier
80A510.5%, pectin 2%, the siliceous waterproofing agent 5% of JX cracking resistances.The viscosity of wherein hydroxypropyl methyl cellulose is
180000mPas, the solid content of sodium silicate solution is 45%, and the modulus of sodium silicate solution is 2.2-3.2.
The preparation method of sodium methyl silicate-calcium hydroxide composite solution is：Weigh the sodium methyl silicate that solid content is 10%
Solution 80-90% and calcium hydroxide 10-20% is evenly stirred until no caking in a kettle, stands 1 day, takes top clarified solution.
Preparation method：Each raw material is weighed respectively by above-mentioned raw materials formula, by formula ratio at normal temperatures and pressures by various raw materials
It sequentially adds in mixing machine, stirs 25-30min, be uniformly mixed.
The performance of concrete waterproofer obtained by embodiment 1-3 and comparative example 1-4 is tested, as a result such as the following table 1.
The test of following performances is according to JC 474-2007《Mortar, concrete waterproofer》In regulation carry out.
1 concrete waterproofer the performance test results of table
As can be seen from the above table, compared with comparative example, the concrete waterproofer presetting period of embodiment 1-3 is longer, most
Length reaches 165min, and final setting time is shorter, it is longer can the mixing time, rapid final set and generate higher intensity after initial set, resist
Compressive Strength ratio greatly improves, and the compressive strength rate of 28d reaches more than 120%, and permeable pressure ratio is greatly improved, highest
Reach 550%, 48h water demand ratios no more than 43%, 28d shrinkage ratios no more than 100%, illustrate described in invention
The concrete waterproofer high stability of Material synthesis, it is higher with the caking property of cement matrix, it does not need to carry out substrate surface
Processing, it is easy to operate, can persistently resistance water impact, and to the external world various vibrations it is insensitive, good water-proof effect and
Persistently, self-healing property is good.It is this is because of the invention by aluminium sulfide, tert-butyl diphenyl chlorosilane, the hyperbranched asphalt mixtures modified by epoxy resin of abietyl
Fat, sodium metasilicate, sodium methyl silicate-calcium hydroxide mixed liquor and other raw materials mix, and pass through the hyperbranched ring of abietyl in early period
Oxygen resin, formed cross-linked network structure, can waterproof, there are time enough supply crystal growth, waterproof effect can be solved
What is occurred is slow, needs the maintenance problem of long period；And waterproof can be improved by adding in abietyl hyperbranched epoxy resin
Agent and the caking property of cement matrix, easy to operate, the impact of resistance water that can be persistently are insensitive to extraneous various vibrations.
Claims (6)
1. a kind of concrete waterproofer, which is characterized in that include each component of following mass percentage：Sodium methyl silicate-hydrogen
Calcium oxide composite solution 50-60%, sodium silicate solution 20-30%, sodium citrate 1-3%, triethanolamine 2-3%, hydroxypropyl first
Base cellulose 2-5%, tackifier 80A51 0.3-0.6%, the siliceous waterproofing agent 5% of pectin 2-3%, JX cracking resistance, aluminium sulfide 1-
2%, tert-butyl diphenyl chlorosilane 0.2-0.5%, abietyl hyperbranched epoxy resin 1-3%.
2. concrete waterproofer as described in claim 1, which is characterized in that the viscosity of the hydroxypropyl methyl cellulose is
120000-180000mPa·s。
3. concrete waterproofer as claimed in claim 1 or 2, which is characterized in that the solid content of the sodium silicate solution is 40-
50%.
4. concrete waterproofer as claimed in claim 1 or 2, which is characterized in that the modulus of the sodium silicate solution is 2.2-
3.2。
5. concrete waterproofer as claimed in claim 1 or 2, which is characterized in that the sodium methyl silicate-calcium hydroxide is compound
The preparation method of solution is：The methane-siliconic acid sodium solution 80-90% and calcium hydroxide 10-20% that solid content is 10% are weighed,
No caking is evenly stirred until in reaction kettle, 1 day is stood, takes top clarified solution.
6. concrete waterproofer as claimed in claim 1 or 2, which is characterized in that include each group of following mass percentage
Part：Sodium methyl silicate-calcium hydroxide composite solution 55%, sodium silicate solution 25%, sodium citrate 3%, triethanolamine 3%, hydroxyl
Propyl methocel 3%, tackifier 80A510.5%, pectin 2%, the siliceous waterproofing agent 5% of JX cracking resistances, aluminium sulfide 1%, tertiary fourth
Base diphenyl chlorosilane 0.5%, abietyl hyperbranched epoxy resin 2%.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108929078A (en) * | 2018-09-21 | 2018-12-04 | 佛山齐安建筑科技有限公司 | A kind of preparation method of concrete water-proof material |
| CN113429180A (en) * | 2021-07-28 | 2021-09-24 | 太原鸿鑫景泰建材有限公司 | High-strength anti-crack concrete and preparation method thereof |
| CN115974481A (en) * | 2022-12-21 | 2023-04-18 | 浙江兆山建材科技有限公司 | Ground leveling mortar and preparation method thereof |
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| CN115974481A (en) * | 2022-12-21 | 2023-04-18 | 浙江兆山建材科技有限公司 | Ground leveling mortar and preparation method thereof |
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