CN101239842B - Concrete rough surface processing agent and its preparation method and application - Google Patents
Concrete rough surface processing agent and its preparation method and application Download PDFInfo
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- CN101239842B CN101239842B CN2008100176499A CN200810017649A CN101239842B CN 101239842 B CN101239842 B CN 101239842B CN 2008100176499 A CN2008100176499 A CN 2008100176499A CN 200810017649 A CN200810017649 A CN 200810017649A CN 101239842 B CN101239842 B CN 101239842B
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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
- C04B41/5025—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 ceramic materials
- C04B41/5037—Clay, Kaolin
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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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Abstract
The invention discloses a concrete matte surface treating agent and the preparation method and application thereof, the agent is prepared by neutral or alkaline solution, bond earth and water, the natural or alkaline solution is prepared by the neutralization reaction between the lemon acid solution and the carbonate solution and the pH value is 7-8.5. The preparing method comprises the following steps: preparing neutral or alkaline solution; adding bond earth and water into the solution and mixing to uniform; inputting the mixture into a distillation container for reacting, distilling and the powder preparation is prepared after crushing and sieving. And the application comprises the following procedures: preparing the mixed serum; preparing the powder preparation with water by weight and mixing; before the primary agglomerating of the surface of the concrete to be processed coating the mixed serum thereon; and finally flushing with the pressure water when the concrete has agglomerated for seven days. The treating agent of the invention has the advantages of simple producing process, low cost, convenient using of the prepared product, compendious and convenient application at the matte surface of the concrete, good treating effect and effectively settling the corresponding question existing in the matte surface treatment.
Description
Technical field
The present invention relates to the roughening concrete surface processing technology field, particularly relate to a kind of concrete rough surface processing agent and its production and application.
Background technology
In concrete construction field, special in the treating processes of casting of concrete in mass parting at present, several treatment processs below all main traditionally employing the: artificial cutter hair, pneumatic pick hacking, wind sand rifle and high-pressure water hair etc.But above-mentioned these methods are the shortcoming of some general character of ubiquity all, and the labor condition of not only constructing is poor, labour intensity big but also operating efficiency is low, progress is slow, and the concrete loss amount that causes simultaneously is also big, the most important thing is that handled effect is also undesirable.Particularly the treatment process of handling at the facade concrete surface is more single, promptly all adopts the method for artificial cutter hair, and there is the drawback of aspects such as labour intensity is big, poor stability especially in this method.
Simultaneously, nowadays also has i.e. " retardant " method of a kind of roughening concrete surface treatment process, it is in the concrete surface brushing or sprays retardant that afterwards again with the effect of water slug hair side to obtain hair side is handled, but the existing shortcoming of this method is more.It mainly comprises following shortcoming: 1, because retardant is relatively poor to the adsorptivity of template or concrete surface, thereby be difficult to accomplish evenly brushing or sprinkling in actual applications, thereby cause concrete surface to be " paint face's shape ", also need carry out secondary treatment; 2, retardant brushing, spray inhomogeneously or excessive, all can certain negative impact be arranged concrete later strength; 3, it dashes the needs that the hair time is difficult to adapt to practice of construction; 4, most retardant compositions itself contain citric acid, thereby product itself is acid human body, reinforcing bar, concrete are all had stronger corrosive nature.
In a word, the treatment process to roughening concrete surface used in the prior art all belongs to mechanical type to be handled, and causes the loosening and crack of underlying concrete easily, thereby reduces concrete globality, runs counter to the original intention that hair side is handled.
Now external popular treatment process also has high-pressure water hair, and (hydraulic pressure＞35MPa), mechanical type wire type bristle etc., though the effect height, technology is too complicated, cost is high, support equipment is corresponding complete, is not suitable for China's national situation.
Summary of the invention
Technical problem to be solved by this invention is at above-mentioned deficiency of the prior art, a kind of concrete rough surface processing agent and its production and application is provided, its preparation process is simple and cost is low, prepared product is easy to use and effective, can effectively solve the corresponding problem that exists in the hair side processing.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of concrete rough surface processing agent, formulated by neutrality or meta-alkalescence solution, colloidality soil and water, the weight ratio of described colloidality soil, water and neutrality or meta-alkalescence solution is 2～2.5: 2.4～2.6: 1, described neutrality or meta-alkalescence solution make by citric acid solution and carbonate solution neutralization reaction and its pH value between 7～8.5.
The pH value of described neutrality or meta-alkalescence solution is 7.5～8.5.
Described carbonate solution is a sodium carbonate solution.
The weight ratio of described water and neutrality or meta-alkalescence solution is 2.5: 1.
The method for preparing described a kind of concrete rough surface processing agent is characterized in that this method may further comprise the steps:
(a) with carrying out neutralization reaction in citric acid solution and carbonate solution input plastics, glass or the enamelled vessel, make neutrality or the meta-alkalescence solution of pH value between 7～8.5;
(b) in step (a), add in prepared neutrality or the meta-alkalescence solution colloidality soil and water and in residing plastics, glass or enamelled vessel, stir mixed serum;
(c) after reacting, distill in the input of the mixed serum in the step (b) distil container, get blocks of solid, make pulvis with the blocks of solid pulverizing and after crossing 1.2 mm sieve again.
The application of described a kind of concrete rough surface processing agent is characterized in that may further comprise the steps:
(1) preparation mixed serum: prepared concrete rough surface processing agent pulvis and water are prepared by weight, constantly stir in the time of preparation, the bubble collapse for the treatment of in the whipping process to be produced used later in 3～5 minutes, when the planar concrete surface was handled, the weight ratio of its pulvis and water was 1: 1.95～2.1; And when the concrete surface of opposite face was handled, the weight ratio of its pulvis and water was 1: 1.35～1.45;
(2) before handled concrete surface tentatively condenses, on handled concrete surface, the brushing amount of plane concrete surface is 0.3kg/m with the middle mixed serum brushing of preparing of step (1)
2～0.5kg/m
2, the brushing amount of facade concrete surface is 0.4kg/m
2～0.6kg/m
2
(3) concrete surface that adopts the pressure water flushing of 0.1MPa～0.3Mpa to be brushed in concrete finally condensed back 7 days is promptly finished its hair side treating processes.
Behind concrete surface brushing mixed serum, needing simultaneously described in the step (2) to the concrete surface of the being brushed processing of preserving moisture.
During the planar concrete surface is handled described in the step (1), the weight ratio of its pulvis and water is 1: 2; And when the concrete surface of opposite face was handled, the weight ratio of its pulvis and water was 1: 1.4.
The pressure of the pressure water described in the step (3) is 0.2Mpa.
The present invention compared with prior art has the following advantages: 1, preparation process is simple and cost is low; 2, prepared product is neutral, nonpoisonous and tasteless, safe and reliable, and human body, reinforcing bar, environment, concrete are all had no adverse effect; 3, prepared product use easy and simple to handle, effect is high and effective, wherethrough manages that formed concrete surface cleaning is smooth, the cohesive strength of New-old concrete joint surface is big, and hair side when handling concrete loss amount little; 4, the mechanism of action of prepared product application in roughening concrete surface is handled is: its host composition comprises that citric acid and carbonate have adsorption and generates insoluble layer with cement reaction back on cement and hydrate surface, can delay condensing and hardening of cement; And its assistant agent composition to be colloidality soil carrier and retarding action that itself had make prepared product can act on concrete surface layer fully effectively, and can satisfy the requirement of practice of construction procedure connection its working lipe, thereby adopt prepared product and after concrete finally condenses, can obtain ideal hair side treatment effect with the pressure water flushing in 1～7 day, its application can effectively solve the corresponding problem that exists in the hair side treating processes.In a word, the invention enables the surface treatment of concrete construction joint more convenient favourable, controllability strengthens and makes execution conditions more flexible.On social benefit and economic benefit, the invention enables the more succinct facility of treatment of construction joints of concrete plane, facade, can not only improve workman's labor condition, alleviate labor strength, improve effect and quickening progress, and can improve the New-old concrete joint surface quality, when reducing construction cost, also can reach ideal roughening concrete surface treatment effect.
Below by embodiment, technical scheme of the present invention is described in further detail.
Embodiment
A kind of concrete rough surface processing agent of the present invention, formulated by neutrality or meta-alkalescence solution, colloidality soil and water, the weight ratio of described colloidality soil, water and neutrality or meta-alkalescence solution is 2～2.5: 2.4～2.6: 1, described neutrality or meta-alkalescence solution make by citric acid solution and carbonate solution neutralization reaction and its pH value between 7～8.5.Carbonate solution weakly alkaline carbonate solution wherein, colloidality soil content is high more, and the adsorptivity of made concrete rough surface processing agent is good more.In this embodiment, carbonate solution is a sodium carbonate solution, the pH value that makes solution after citric acid solution and the carbonate solution reaction is 7.5～8.5, and the weight ratio of water and neutrality or meta-alkalescence solution is 2.5: 1, and colloidality soil is 2～2.5: 1 with the weight ratio of neutrality or meta-alkalescence solution.
A kind of preparation method of concrete rough surface processing agent mainly may further comprise the steps:
The first step:, make neutrality or the meta-alkalescence solution of pH value between 7～8.5 with carrying out neutralization reaction in citric acid solution and carbonate solution input plastics, glass or the enamelled vessel.In this embodiment, it is 36.6% citric acid solution that the water that at first places the solid citric acid of 1.5kg in the container and add 2.6kg is mixed with 4.1kg concentration, it is 43.5% sodium carbonate solution that the water that places the solid sodium carbonate of 2.0kg in another container in addition and add 2.6kg is mixed with 4.6kg concentration, and then these two kinds of solution being carried out neutralization reaction and making pH value is 7.5～8.5 meta-alkalescence solution.
Second step: in the first step, add colloidality soil and water in prepared neutrality or the meta-alkalescence solution and in residing plastics, glass or enamelled vessel, stir mixed serum.The colloidality soil that is added is 2～2.5: 1 with the weight ratio of above-mentioned neutrality or meta-alkalescence solution, the water that adds and the weight ratio of neutrality or meta-alkalescence solution are 2.4～2.6: 1, wherein colloidality soil content is high more, and the adsorptivity of made concrete rough surface processing agent is good more.In this embodiment, the weight ratio of prepared meta-alkalescence solution is 2.5: 1 in the water of adding and the above-mentioned the first step, promptly adds 21.75kg water.And because the colloidality that is added soil content is high more, the adsorptivity of made concrete rough surface processing agent is good more, thereby the content height that added when the planar concrete surface is handled of the colloidality soil content that when the concrete surface of opposite face is handled, is added, to sum up, content corresponding adjusting the between 17.4kg～21.75kg that adds colloidality soil.
The 3rd step, with the mixed serum that makes in second step drop into after reacting, distill in the distil container blocks of solid, again blocks of solid is pulverized and the aperture be to make pulvis behind 1.2 millimeters the sieve, can obtain the concrete rough surface processing agent of required preparation.
And, mainly may further comprise the steps for the application of above-mentioned prepared concrete rough surface processing agent:
The first step, preparation mixed serum: prepared concrete rough surface processing agent pulvis and water are prepared by weight, constantly stirred in the time of preparation, the bubble collapse for the treatment of in the whipping process to be produced can use later in 5 minutes.When the planar concrete surface was handled, the weight ratio of its pulvis and water was 1: 1.95～2.1; And when the concrete surface of opposite face was handled, the weight ratio of its pulvis and water was 1: 1.35～1.45.In this embodiment, in preparation mixed serum process, when the planar concrete surface was handled, the weight ratio of its pulvis and water was 1: 2; And when the concrete surface of opposite face was handled, the weight ratio of its pulvis and water was 1: 1.4.
Second step, handled concrete surface tentatively condenses before will on the mixed serum brushing of preparing in the step on handled concrete surface, the brushing amount of plane concrete surface is 0.3kg/m
2～0.5kg/m
2, the brushing amount of facade concrete surface is 0.4kg/m
2～0.6kg/m
2The mechanism of action of its rough surface processing agent is: its host composition comprises that citric acid and carbonate have adsorption and generates insoluble layer with cement reaction back on cement and hydrate surface, can delay condensing and hardening of cement; And its assistant agent composition to be colloidality soil carrier and retarding action that itself had make prepared product can act on concrete surface layer fully effectively, and can satisfy the requirement of practice of construction procedure connection its working lipe.
The 3rd step, the concrete surface that adopts the pressure water flushing of 0.1MPa～0.3Mpa to be brushed in concrete finally condensed back 7 days are promptly finished its hair side treating processes.In this embodiment, in the concrete of institute's brushing concrete surface finally condenses back 1～7 day, wash and to obtain ideal hair side treatment effect afterwards with the pressure water of 0.2Mpa.Simultaneously, for guaranteeing its hair side treatment effect, behind concrete surface brushing mixed serum, also need simultaneously the concrete surface of the being brushed processing of preserving moisture, especially when hot weather construction, the too high meeting of temperature reduces the result of use of this product, thereby must take corresponding moist keeping measures to the concrete surface of being brushed, as the concrete surface covered with plastic film brushed at it, irregularly thereon spray water, adopt special-purpose wetting Agent for Printing Inks etc.
To sum up, handle by the roughening concrete surface that above-mentioned applying step is used prepared concrete rough surface processing agent, it is smooth that wherethrough is managed formed concrete surface cleaning, the cohesive strength of New-old concrete joint surface is big, and concrete loss amount was little when hair side was handled, can reach ideal hair side treatment effect, its application can effectively solve the corresponding problem that exists in the hair side treating processes.
The above; it only is preferred embodiment of the present invention; be not that the present invention is imposed any restrictions, everyly any simple modification that above embodiment did, change and equivalent structure changed, all still belong in the protection domain of technical solution of the present invention according to the technology of the present invention essence.
Claims (9)
1. concrete rough surface processing agent, it is characterized in that: prepare after distillation and crushing screening are made by neutrality or meta-alkalescence solution, colloidality soil and water, the weight ratio of described colloidality soil, water and neutrality or meta-alkalescence solution is 2～2.5: 2.4～2.6: 1, described neutrality or meta-alkalescence solution by concentration be 36.6% citric acid solution and concentration be 43.5% carbonate solution neutralization reaction make and its pH value between 7～8.5.
2. according to the described a kind of concrete rough surface processing agent of claim 1, it is characterized in that: the pH value of described neutrality or meta-alkalescence solution is 7.5～8.5.
3. according to claim 1 or 2 described a kind of concrete rough surface processing agents, it is characterized in that: described carbonate solution is a sodium carbonate solution.
4. according to claim 1 or 2 described a kind of concrete rough surface processing agents, it is characterized in that: the weight ratio of described water and neutrality or meta-alkalescence solution is 2.5: 1.
5. prepare a kind of method of concrete rough surface processing agent according to claim 1, it is characterized in that this method may further comprise the steps:
(a) with carrying out neutralization reaction in citric acid solution and carbonate solution input plastics, glass or the enamelled vessel, make neutrality or the meta-alkalescence solution of pH value between 7～8.5;
(b) in step (a), add in prepared neutrality or the meta-alkalescence solution colloidality soil and water and in residing plastics, glass or enamelled vessel, stir mixed serum;
(c) after reacting, distill in the input of the mixed serum in the step (b) distil container, get blocks of solid, make pulvis with the blocks of solid pulverizing and after crossing 1.2 mm sieve.
6. according to the application of the described a kind of concrete rough surface processing agent of claim 1, it is characterized in that may further comprise the steps:
(1) preparation mixed serum: prepared concrete rough surface processing agent pulvis and water are prepared by weight, constantly stir in the time of preparation, the bubble collapse for the treatment of in the whipping process to be produced used later in 3～5 minutes, when the planar concrete surface was handled, the weight ratio of its pulvis and water was 1: 1.95～2.1; And when the concrete surface of opposite face was handled, the weight ratio of its pulvis and water was 1: 1.35～1.45;
(2) before handled concrete surface tentatively condenses, on handled concrete surface, the brushing amount of plane concrete surface is 0.3kg/m with the middle mixed serum brushing of preparing of step (1)
2～0.5kg/m
2, the brushing amount of facade concrete surface is 0.4kg/m
2～0.6kg/m
2
(3) concrete surface that adopts the pressure water flushing of 0.1MPa～0.3Mpa to be brushed in concrete finally condensed back 7 days is promptly finished its hair side treating processes.
7. according to the application of the described a kind of concrete rough surface processing agent of claim 6, it is characterized in that: behind concrete surface brushing mixed serum, needing simultaneously described in the step (2) the concrete surface of the being brushed processing of preserving moisture.
8. according to the application of claim 6 or 7 described a kind of concrete rough surface processing agents, it is characterized in that: during the planar concrete surface is handled described in the step (1), the weight ratio of its pulvis and water is 1: 2; And when the concrete surface of opposite face was handled, the weight ratio of its pulvis and water was 1: 1.4.
9. according to the application of claim 6 or 7 described a kind of concrete rough surface processing agents, it is characterized in that: the pressure of the pressure water described in the step (3) is 0.2Mpa.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100176499A CN101239842B (en) | 2008-03-07 | 2008-03-07 | Concrete rough surface processing agent and its preparation method and application |
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|---|---|---|---|
| CN2008100176499A CN101239842B (en) | 2008-03-07 | 2008-03-07 | Concrete rough surface processing agent and its preparation method and application |
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| CN101239842A CN101239842A (en) | 2008-08-13 |
| CN101239842B true CN101239842B (en) | 2010-07-14 |
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| CN107627444A (en) * | 2017-09-28 | 2018-01-26 | 中国冶集团有限公司 | Unstressed washing dabbing technique |
| CN111423251A (en) * | 2020-03-17 | 2020-07-17 | 山西佳维新材料股份有限公司 | Matting agent for concrete and preparation method and application thereof |
| CN111533573A (en) * | 2020-04-18 | 2020-08-14 | 河南砥柱工程检测有限公司 | Powdery matting agent for concrete and preparation method thereof |
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