CN101786837A - Permeation type waterproof material for road engineering cement concrete structure - Google Patents
Permeation type waterproof material for road engineering cement concrete structure Download PDFInfo
- Publication number
- CN101786837A CN101786837A CN201010001143A CN201010001143A CN101786837A CN 101786837 A CN101786837 A CN 101786837A CN 201010001143 A CN201010001143 A CN 201010001143A CN 201010001143 A CN201010001143 A CN 201010001143A CN 101786837 A CN101786837 A CN 101786837A
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- China
- Prior art keywords
- concrete
- cement
- cement concrete
- water
- concrete structure
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- 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.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
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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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
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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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5076—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with masses bonded by inorganic cements
- C04B41/5079—Portland cements
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to a permeation type waterproof material for a road engineering cement concrete structure, which takes common silicate cement as a base material, has crystallization waterproof performance, and takes cement and natural sand as main components and chemical additives and active substances as auxiliary components. The permeation type waterproof material for the road engineering cement concrete structure generates chemical reaction with free alkali in concrete, fills in capillary parts in the concrete by utilizing permeation performance to form crystals, become a part of the whole concrete structure and obtain a permanent waterproof and anti-seepage sealing layer, thereby effectively protecting the concrete. As a protective agent for cement concrete, the permeation type waterproof material for a road engineering cement concrete structure is specially used for resisting water and corrosion for cement concrete, permanently solves the problems of desiccation cracks, cracks, seepage, pulverization, carbonization, corrosion, exfoliation, ice crack and the like in the cement concrete engineering, saves the cost of maintenance engineering, and prolongs the service life of the cement pavement of road engineering.
Description
Affiliated technical field
The invention belongs to and be coated in highway engineering cement concrete constructions surface of having built up and the crystallization osmosis type water-proof material that in newly-built highway engineering cement concrete constructions, adds.
Background technology
The development of transportation, particularly large-scale, super-huge bridge tunnel is on the increase, for water-proof material and construction thereof provide wide space.As everyone knows, concrete is a kind of heterogeneous porous material, and there is a large amount of microtexture defectives in its inside, and these microdefects all will become concrete infiltration channel of later stage, make the leakage of building problem come into one's own day by day.Therefore, also just to the new requirement of the continuous proposition of the development of water-proof material.The transport structure waterproof has roughly experienced structure from several stages such as waterproof, admixture water-proof concrete, surface treatment waterproof.
Concrete water-proof the earliest mostly is structure from waterproof, and as adopting fat mortar concrete, the continuous grading of gathering materials concrete etc., its ultimate principle is exactly by the degree of compactness that improves concrete self, reduces porosity and improve its waterproof ability.Because these methods can increase the difficulty of construction, and can't be from improving the crack resistance of cement concrete in essence, so use less now.
The admixture water-proof concrete has appearred in 20 beginnings of the century, mainly contains dual mode:
1, in concrete, add hard soap, by with cement in CaO, MgO, SiO2 etc. reaction forms insoluble colloidal compound or network and thing plugging hole seam, reaches the waterproof purpose.This method can only partly suppress crack on concrete, can't overcome the weakness of concrete self as rigid material;
2, in concrete, add swelling agent, i.e. expansive concrete.This concrete can be limited by reinforcing bar and ortho position in an amount of volumetric expansion of the early stage generation of hydrated cementitious, produces prestress in concrete, thereby offsets the tensile stress that is partly or entirely caused by drying shrinkage, shrinkage.
After the 1950's, along with the development of high molecular synthetic material, various novel waterproof paints constantly occur, for modern architecture provides novel material, new technology.Application in construction work such as various filleting seal gums, waterproof paint, sealing patching materials more and more widely.Surface treatment class material mainly is divided into two big classes at present: flexible materials and rigid material.Flexible materials mainly utilizes polymer substance, by means such as polymerization, modifications, forms the hydrophobic elastic protective layer of one deck at concrete surface, and the closed concrete surface stops passing through of water; Rigid material then is to be starting material with cement, sand, stone, and a small amount of organic or inorganic admixture of admixture forms the fine and close protective layer that certain intensity is arranged at concrete surface, makes textural defect up, strengthens concrete water resistance.
From the several stages of historical development, can see that its trend is: progressively towards easier construction, the more surface treatment mode development of easy care, the research of waterproof paint has boundless prospect.
In traditional waterproof technique, cement is used for rigid waterproofing, and macromolecular material is used for flexible water, often makes a clear distinction between good and evil.The cement group water-proofing material good endurance, compatible fully with basal plane, but inapplicable distortion; Flexible waterproof material is wide in variety, and deformability is good, but with basal plane tolerance mutually, also have the aged problem.Along with the maturation of polymer production technology, the reduction of cost, the ratio of polymkeric substance increases gradually, so just produced polymer cement waterproof paint.
Summary of the invention
1, the mechanism of action
When permeation type waterproof material for road engineering cement concrete structure is applied to concrete surface, because the active chemistry that contains in the coating, under concentration and pressure difference acting in conjunction, active chemistry can be by the water that exists in the concrete pore, be penetrated into inside concrete, free lime and oxide compound generation chemical reaction with in the pore generate water-fast xln, capillary bed, pore and the microfracture of sealing in the concrete, rise block water, waterproof action.It can react with the oxide compound of rebar surface again simultaneously, forms the stable film of one deck, stops carbonic acid gas to invade concrete, prevents that the pH value in the concrete from descending, and plays the protection action of steel bars.
2, optimum mix proportion
The essentially consist of table 1 coating
Form ten kilograms of coating of preparation by it, use in order to follow-up test.The water cement ratio of coating mixing water amount is 0.4, and its degree of mobilization can reach more than the 300mm, satisfies initial set time of coagulation greater than 30min, and final setting time is no more than 24h.
3, material property
(1) stability is qualified: time of coagulation is qualified.
(2) highway engineering is permeated water-proof material sand-cement slurry physical and mechanical property with cement concrete.
Table 2 is examined the physical and mechanical property of mortar
(3) this material has and matrix good binding ability, can form the characteristics of integral waterproofing with matrix.
(4) impervious effect is obvious, and the impervious pressure of secondary can reach once more than 33.33% of impervious pressure, and the antiosmotic pressure force rate can reach 300%, embodies this material once more and has good anti-permeability performance and self-healing ability.
(5) have good frost resistance, through 50 times between-20 ℃～20 ℃ circulations, substrate performance is unaffected, and as seen this material has the ability that strengthens anti-freezing property to matrix.
(6) have the performance of acid-and base-resisting, brine corrosion, under the pH=3.0-12.0 condition, all can normally use.
By above detected result analysis, can think that the performance of coating each side satisfies the requirement of GB18445-2001, and can significantly improve the waterproof ability of matrix, its performance even also surpass the level of like product.
Embodiment
Embodiment 1: external coating
This kind method generally is used for the cement concrete constructions surface built up; by at cement concrete surface brushing permeable crystalline waterproofing material; through precipitin reaction; can form the protective layer of one deck densification at cement concrete surface, make chemical materials such as water, acid, alkali, salt can't be penetrated into cement concrete constructions thing inside.
Embodiment 2: make additive
This kind method is generally used in newly-built cement concrete constructions engineering, in the process that cement concrete stirs, add permeable crystalline waterproofing material in proportion, water-proof material in the material can with the free alkali generation chemical reaction in the concrete, utilize penetrating quality, filling the capillary position in the concrete, form xln, thereby make the concrete structure densification, reach the effect of putting things right once and for all.
Claims (4)
1. its feature of highway engineering cement concrete osmosis type water-proof material mainly adopts cement, sand, admixture and active substance to mix and stir the mixture that forms.
2. according to the material described in the claim 1, by the quality percentage composition, comprise that following component mixes through reflection: common silicic acid rock 42.5R cement percentage composition is 55-60%, the quartz sand percentage composition is 25-30%, the calcium hydroxide percentage composition is 3-5%, the quick dissolved sodium silicate percentage composition is 1-3%, aluminum stearate 2-3%, silicon ash 7-8%.
3. method for preparing material described in the claim 1 to 2, in described ratio, mix and stir at cement and to add cement, sand, calcium hydroxide, quick dissolved sodium silicate, aluminum stearate, silicon ash in the production unit successively, according to circumstances adding an amount of water reducer mixes and stirs, mix and stir technological basis JTG E30-2005 " highway engineering cement and cement concrete testing regulation " and be prepared, promptly obtain this highway engineering cement concrete osmosis type water-proof material.
4. when highway engineering cement concrete osmosis type water-proof material is applied to concrete surface, because the active chemistry that contains in the coating, under concentration and pressure difference acting in conjunction, active chemistry can be by the water that exists in the concrete pore, be penetrated into inside concrete, free lime and oxide compound generation chemical reaction with in the pore generate water-fast xln, capillary bed, pore and the microfracture of sealing in the concrete, rise block water, waterproof action.It can react with the oxide compound of rebar surface again simultaneously, forms the stable film of one deck, stops carbonic acid gas to invade concrete, prevents that the pH value in the concrete from descending, and plays the protection action of steel bars.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010001143A CN101786837A (en) | 2010-01-13 | 2010-01-13 | Permeation type waterproof material for road engineering cement concrete structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010001143A CN101786837A (en) | 2010-01-13 | 2010-01-13 | Permeation type waterproof material for road engineering cement concrete structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101786837A true CN101786837A (en) | 2010-07-28 |
Family
ID=42530237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010001143A Pending CN101786837A (en) | 2010-01-13 | 2010-01-13 | Permeation type waterproof material for road engineering cement concrete structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN101786837A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788744A (en) * | 2012-07-27 | 2012-11-21 | 马鞍山十七冶工程科技有限责任公司 | Sealing material for detecting water permeability resistance of asphalt pavement |
| CN103979845A (en) * | 2014-03-31 | 2014-08-13 | 安徽鑫润新型材料有限公司 | Waterproof concrete and preparation method thereof |
| CN104955788A (en) * | 2013-03-29 | 2015-09-30 | 有限会社Ａｅｓ | Cation concentration increasing agent, modifying agent for concrete structure, method for manufacturing same, and method for repairing concrete structure |
| CN106244009A (en) * | 2016-08-24 | 2016-12-21 | 江苏凯伦建材股份有限公司 | A kind of uncured rubber asphalt waterproof coating of permeable crystallization type and preparation method thereof |
| CN108017355A (en) * | 2017-12-07 | 2018-05-11 | 成都东蓝星新材料有限公司 | High speed railway sound barrier anchoring cement base self-healing composite material and preparation method thereof |
| CN110054432A (en) * | 2019-05-08 | 2019-07-26 | 福建嘉瑞宝海绵城市环保科技有限公司 | A kind of high-effective concrete composite permeable additive and its production method |
| CN111892361A (en) * | 2020-07-03 | 2020-11-06 | 安徽朗凯奇建材有限公司 | Quick-setting cement-based permeable crystallization type waterproof material and preparation method thereof |
| CN107628788B (en) * | 2017-09-22 | 2021-06-01 | 北京东方雨虹防水技术股份有限公司 | Cement-based waterproof material for repairing concrete cracks and preparation method thereof |
-
2010
- 2010-01-13 CN CN201010001143A patent/CN101786837A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788744A (en) * | 2012-07-27 | 2012-11-21 | 马鞍山十七冶工程科技有限责任公司 | Sealing material for detecting water permeability resistance of asphalt pavement |
| CN104955788A (en) * | 2013-03-29 | 2015-09-30 | 有限会社Ａｅｓ | Cation concentration increasing agent, modifying agent for concrete structure, method for manufacturing same, and method for repairing concrete structure |
| CN104955788B (en) * | 2013-03-29 | 2017-08-29 | 有限会社Ａｅｓ | Cation concn enhancer, the modifying agent of concrete structure, the method for repairing and mending of its manufacture method and concrete structure |
| CN103979845A (en) * | 2014-03-31 | 2014-08-13 | 安徽鑫润新型材料有限公司 | Waterproof concrete and preparation method thereof |
| CN106244009A (en) * | 2016-08-24 | 2016-12-21 | 江苏凯伦建材股份有限公司 | A kind of uncured rubber asphalt waterproof coating of permeable crystallization type and preparation method thereof |
| CN107628788B (en) * | 2017-09-22 | 2021-06-01 | 北京东方雨虹防水技术股份有限公司 | Cement-based waterproof material for repairing concrete cracks and preparation method thereof |
| CN108017355A (en) * | 2017-12-07 | 2018-05-11 | 成都东蓝星新材料有限公司 | High speed railway sound barrier anchoring cement base self-healing composite material and preparation method thereof |
| CN110054432A (en) * | 2019-05-08 | 2019-07-26 | 福建嘉瑞宝海绵城市环保科技有限公司 | A kind of high-effective concrete composite permeable additive and its production method |
| CN111892361A (en) * | 2020-07-03 | 2020-11-06 | 安徽朗凯奇建材有限公司 | Quick-setting cement-based permeable crystallization type waterproof material and preparation method thereof |
| CN111892361B (en) * | 2020-07-03 | 2022-03-18 | 安徽朗凯奇建材有限公司 | Quick-setting cement-based permeable crystallization type waterproof material and preparation method thereof |
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Addressee: Beijing Xinqiao Technology Development Ltd. Zhao Meiling Document name: the First Notification of an Office Action |
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Application publication date: 20100728 |