CN1053880C - Cement waterproof agent and its preparation method - Google Patents
Cement waterproof agent and its preparation method Download PDFInfo
- Publication number
- CN1053880C CN1053880C CN95102659A CN95102659A CN1053880C CN 1053880 C CN1053880 C CN 1053880C CN 95102659 A CN95102659 A CN 95102659A CN 95102659 A CN95102659 A CN 95102659A CN 1053880 C CN1053880 C CN 1053880C
- Authority
- CN
- China
- Prior art keywords
- water
- waterproof
- hydrophober
- sylvite
- retardant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- 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
- C04B2103/60—Agents for protection against chemical, physical or biological attack
- C04B2103/65—Water proofers or repellants
Abstract
The present invention relates to waterproof liquid of cement mortar or concrete and a production method thereof. The waterproof liquid contains carboxylate, hydroxy carboxylate and trolamine or triisopropanolamine. The product is made into concentrated liquid which is conveniently stored and transported. The product is especially suitable for preventing cement mortar; compared with reference mortar, the water tightness of the cement mortar is more than 400%, and the compressive strength can respectively reach 114% for 7 days and 106% for 28 days.
Description
The present invention relates to a kind of sand-cement slurry or concrete liquid waterproof agent and production method thereof of being used for.
As everyone knows, mixing water-resisting agent in sand-cement slurry or concrete, is the effective ways that improve cement products waterproof, protection against the tide, barrier performance.Liquid waterproof agent is compared with water-proofing powder, has in grout to be evenly distributed, and improves the workability of grout, and advantages such as high strength, high permeability resistant energy, thereby has obtained to use widely day by day.Waterproof liquid is of a great variety on the building materials market at present, and performance is different, and its waterproof effect difference is also very big.
In the past, production of units such as Shanghai water-proof material factory " keeping away water slurry " was the wider waterproof liquid of a kind of application, and stearate wherein can generate hydrophobic calcium stearate precipitation with the hydrated product reaction of cement; The fluorochemical of solubility, carbonate then are separately converted to Calcium Fluoride (Fluorspan) and precipitation of calcium carbonate.This waterproof liquid existing problems are that the loss of strength that stearate causes does not obtain strong remedying, and it is not enough that anti-permeability performance is still disliked, and particularly need reach higher technical indicator if be used for waterproof mortar.
Application number is that 93110000.3 " composite concrete liquid " has multiple function, comprises diminishing, slow setting, waterproof, expansion etc.Mainly become to be grouped into by calcium, aluminium, iron and molasses etc.If be applied to concrete, have waterproof effect preferably, but if be used for waterproof mortar, obviously its water resistance is not enough, because of it does not contain the hydrophober composition.
Since the nineties, the patent of application inorganic water-proof agent is more, 92108235.5 " a kind of inorganic water-proof agent and production methods thereof " for example, 93105069.3 " inorganic aluminate water-proof agents " etc., its common advantage be have long-lasting.The common problem that exists is not contain the hydrophober composition, and it is not enough that anti-permeability performance is still disliked, and its acidity is unfavorable to cement.Can not adapt to high-level waterproof requirement, for example be used for waterproof mortar.
Purpose of the present invention overcomes the deficiency of above-mentioned technology exactly, and a kind of multiple function that both had is provided, and sand-cement slurry, the concrete waterproofer of very outstanding water-proof function arranged again.
In the case, the present inventor is developed into the multifunctional efficient waterproof liquid that is made of hydrophober (or claiming non-blushing thinner, water repellent agent), hydrated reaction of cement catalyzer, retardant, mineral alkali and water through research trial repeatedly.
According to the present invention, said hydrophober is meant carboxylate salts such as naphthenate, stearate or oleate.What preferentially select for use is oleic sodium salt or sylvite.At first oleate generates hydrophobic throw out calcium oleate as anion surfactant with hydrated cementitious product calcium hydroxide reaction.This throw out is made oriented alignment on the capillary hole wall of cement products, make crude oil tube wall hydrophobic, therefore is difficult for permeable.Secondly, oleate as air entrapment agent can in cement stone, form do not connect mutually, homodisperse microbubble, thereby impervious, the freezing and thawing performance of raising cement stone.In addition, oleate still has the workability of improving grout, reduces multiple effects such as bleeding, raising water-retentivity.
According to the present invention, said hydrated reaction of cement catalyzer is meant trolamine and tri-isopropanolamine, and what preferentially select for use is trolamine.It can significantly improve the early strength of cement, and centering intensity at a specified future date is also helpful.And can make cement stone more closely knit, improve its anti-permeability performance.In addition, trolamine still has certain delayed coagulation.At last, trolamine also itself has indispensable even matter effect to waterproof liquid.
According to the present invention, said retardant is meant the sylvite or the sodium salt of hydroxycarboxylic acids such as citric acid, tartrate, gluconic acid.What preferentially select for use is the sylvite or the sodium salt of citric acid.The main effect of Citrate trianion is when very hour its significant delayed coagulation of volume, can improve the condensation condition of grout, reduces or eliminates the crack.It can not only remedy mixes the loss of strength that air entrapment agent causes, and can improve the intensity and the anti-permeability performance of cement stone significantly.
According to the present invention, said mineral alkali is meant sodium hydroxide or potassium hydroxide.Its effect is to make oleic acid change water-soluble salt into, and the pH value of keeping waterproof liquid is alkalescence.
According to the present invention, for the ease of producing, store and transportation, waterproof liquid is made concentrated solution, cycles of concentration is 5-70 times, preferably 50-60 is doubly.
According to the present invention, the concentrated solution thin up is that the weight ratio behind the application liquid is as follows:
Oleate (in oleic acid) 0.5-5.0 ‰, preferably 1.0-4.0 ‰.
Trolamine: 0.3-4.0 ‰, preferably 0.5-3.0 ‰.
Citrate trianion (with citrometer) 0.3-4.0 ‰, preferably 0.5-3.0 ‰.
According to the present invention, concentrate waterproof liquid and produce as follows.
1. quantitatively inject hot water in reactor, water temperature is preferably in 50-80 ℃ at 30-100 ℃.
2. quantitatively throw in potassium hydroxide or sodium hydrate solid in above-mentioned water, stirring makes molten.
3. quantitatively in above-mentioned alkali lye, add oleic acid while stirring, reacted 0.5-5 hour.
4. be under the 20-50 ℃ of condition in temperature, quantitatively add trolamine, stir, placed 0.5-3 hour.
5. be under the 10-50 ℃ of condition in temperature, quantitatively add citric acid while stirring, reacted 0.5-5 hour.
6. adjust the pH value of waterproof liquid in the 8-11 scope with 20% potassium hydroxide or sodium hydroxide solution.
That waterproof liquid produced according to the invention has is nontoxic, tasteless, do not fire, but reinforcing bar is not had burn into long storage series of advantages such as never degenerate.The watertightness index is high especially, and waterproof mortar can be greater than more than 400% of benchmark mortar.Intensity reached 114% and 106% of benchmark mortar respectively in 7 days, 28 days.This product is applicable to ordinary Portland cement and Portland blast.
Be embodiments of the invention below.
31 kilograms of hot water that add 70 ℃ in the reactor of 50 liters add 1.5 kilograms in potassium hydroxide, stir make molten.Add 2.4 kilograms of oleic acid while stirring, reacted 3 hours.When treating liquid temperature drop to 50 ℃, add 1.5 kilograms of trolamines, stir, placed 2 hours.When treating liquid temperature drop to 30 ℃, add 1.3 kilograms of citric acids while stirring, reacted 3 hours.The pH value of test solution can add a small amount of 20% potassium hydroxide solution in case of necessity, and adjusting the pH value is 9-10.
During application the said products is added the water dilution of 49 times of weight, stirred 1 minute application liquid.
Claims (5)
1, a kind of sand-cement slurry or concrete liquid waterproof agent of being used for, it is characterized in that: be solvent with water, and contain the sylvite of stearic acid or oleic acid, naphthenic acid or sodium salt as hydrophober, with trolamine or tri-isopropanolamine as catalyzer, the sylvite of citric acid or tartrate, gluconic acid or sodium salt be as retardant, its content following (by weight):
Hydrophober: 0.5～5.0 ‰,
Catalyzer: 0.3～4.0 ‰,
Retardant: 0.3～4.0 ‰.
2, according to the described water-resisting agent of claim 1, it is characterized in that: above-mentioned
Hydrophober is 1.0～4.0 ‰,
Catalyzer is 0.5～3.0 ‰,
Retardant is 0.5～3.0 ‰.
3, water-resisting agent according to claim 1 and 2 is characterized in that: hydrophober adopts oleic sylvite or sodium salt.
4, water-resisting agent according to claim 1 and 2 is characterized in that: catalyzer adopts trolamine.
5, water-resisting agent according to claim 1 and 2 is characterized in that: retardant adopts the sylvite or the sodium salt of citric acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95102659A CN1053880C (en) | 1995-03-18 | 1995-03-18 | Cement waterproof agent and its preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95102659A CN1053880C (en) | 1995-03-18 | 1995-03-18 | Cement waterproof agent and its preparation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1131651A CN1131651A (en) | 1996-09-25 |
| CN1053880C true CN1053880C (en) | 2000-06-28 |
Family
ID=5074427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95102659A Expired - Fee Related CN1053880C (en) | 1995-03-18 | 1995-03-18 | Cement waterproof agent and its preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1053880C (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1295180C (en) * | 2004-11-17 | 2007-01-17 | 王衡 | Concrete water-proof additive |
| US20090250653A1 (en) | 2006-08-07 | 2009-10-08 | Kiely Donald E | Hydroxycarboxylic Acids and Salts |
| WO2008021054A2 (en) | 2006-08-07 | 2008-02-21 | The University Of Montana | Method for the preparation of organic acids via oxidization using nitric acid |
| RU2351560C1 (en) * | 2007-10-22 | 2009-04-10 | Андрей Валерьевич Черняков | Complex additive for construction mix |
| AU2008322438B2 (en) | 2007-11-15 | 2014-06-19 | The University Of Montana | Hydroxypolyamide gel forming agents |
| CN101575187B (en) * | 2009-06-16 | 2011-10-05 | 武汉科技大学 | Grinding aid used for refractory material and preparation method thereof |
| RU2609417C2 (en) | 2011-04-21 | 2017-02-01 | Ривертоп Реньюэблс, Инк. | Calcium sequestering composition |
| CN102503231B (en) * | 2011-09-28 | 2013-06-12 | 李忠平 | Mortar additive concentrate and preparation method thereof |
| WO2014085262A1 (en) | 2012-11-28 | 2014-06-05 | Rivertop Renewables | Corrosion inhibiting, freezing point lowering compositions |
| US9670124B2 (en) | 2013-03-13 | 2017-06-06 | Rivertop Renewables, Inc. | Nitric acid oxidation process |
| BR112015022284A2 (en) | 2013-03-13 | 2017-07-18 | Rivertop Renewables Inc | improved nitric acid oxidation processes |
| CN104496349A (en) * | 2014-12-03 | 2015-04-08 | 王新荣 | Waterproof concrete |
| CN109133712B (en) * | 2018-10-08 | 2021-08-31 | 重庆大学 | Additive for improving cracking and water absorption of alkali slag cement stone and application method thereof |
| CN111056802A (en) * | 2019-12-31 | 2020-04-24 | 江苏瓦楷新材料科技有限公司 | Preparation method of hydrophobic mortar |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54135820A (en) * | 1978-04-14 | 1979-10-22 | Mitsubishi Oil Co | Cement mixing agent |
| JPS60228586A (en) * | 1984-04-26 | 1985-11-13 | Hoechst Gosei Kk | Waterproofing composition which prevent water from both oozing out of concrete body and penetrating through its surface thereinto and waterproofing method |
| JPH0270787A (en) * | 1988-09-07 | 1990-03-09 | Toshiba Silicone Co Ltd | Penetrative waterproofing agent composition |
| KR940004380A (en) * | 1992-08-07 | 1994-03-15 | 강진구 | Automatic recording system by light switch of camcorder |
-
1995
- 1995-03-18 CN CN95102659A patent/CN1053880C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54135820A (en) * | 1978-04-14 | 1979-10-22 | Mitsubishi Oil Co | Cement mixing agent |
| JPS60228586A (en) * | 1984-04-26 | 1985-11-13 | Hoechst Gosei Kk | Waterproofing composition which prevent water from both oozing out of concrete body and penetrating through its surface thereinto and waterproofing method |
| JPH0270787A (en) * | 1988-09-07 | 1990-03-09 | Toshiba Silicone Co Ltd | Penetrative waterproofing agent composition |
| KR940004380A (en) * | 1992-08-07 | 1994-03-15 | 강진구 | Automatic recording system by light switch of camcorder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1131651A (en) | 1996-09-25 |
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