CN102352677B - Construction method for as-cast finish concrete transparent protective layer - Google Patents
Construction method for as-cast finish concrete transparent protective layer Download PDFInfo
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- CN102352677B CN102352677B CN 201110222115 CN201110222115A CN102352677B CN 102352677 B CN102352677 B CN 102352677B CN 201110222115 CN201110222115 CN 201110222115 CN 201110222115 A CN201110222115 A CN 201110222115A CN 102352677 B CN102352677 B CN 102352677B
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Abstract
The invention relates to a construction method for building concrete, in particular to a construction method for an as-cast finish concrete transparent protective layer, and belongs to the technical field of building construction. The method comprises the following steps of: performing surface treatment on concrete and coating a concrete transparent protective layer. By standard construction measures, the concrete transparent protective layer is coated, namely a base layer is cured for more than 28 days, so that the alkalinity is reduced, the pH value is less than 10, the water content is less than 6 percent, a regulation material is repaired in a felt coating mode uniformly, the transparent protective layer is made of pure organosilicon, drinking water is used for blending, the roller coating interval is 2 hours, a permeable seal primer is coated to prevent the re-alkali of the base material and improve the adhesion of a coated film, and the transparent protective layer has elasticity and extensibility to meet the requirement of concrete shrinkage or expansion.
Description
Technical field
The present invention relates to a kind of job practices of building concrete, be specifically related to a kind of job practices of clear-water concrete protective clear layer, belong to technical field of building construction.
Background technology
In China, clear-water concrete is to develop along with the development of concrete structure is continuous.The seventies in 20th century, in the construction of inner deposited and outer hung system, clear-water concrete is mainly used in that precast concrete external wall panel is counter to be beaten in the construction, has obtained progress.Afterwards, because that the sight that will decorate outward of people is all thrown is all in face brick and curtain wall, the application of clear-water concrete and practice almost stayed cool.Until 1997, Beijing set up " structure Great Wall cup engineering " prize, promotes dry concrete construction, makes clear-water concrete recapture development.In recent years, a small amount of top-grade building engineering such as airport, Sanya, Hainan, the Capital Airport, the large-scale oblique cylindrical shell of Pudong International Airport in Shanghai terminal, Oriental Pearl etc. has all adopted clear-water concrete.Objective demand along with green building, improving constantly of people's environmental consciousness, return Piao and return being rooted in the hearts of the people of genuine natural thought, the demand of China's clear-water concrete engineering no longer is confined to road and bridge, factory building and airport, has also obtained certain application in industry and civilian construction.Clear-water concrete is five-star expression-form in the concrete material, and what its showed is the most essential a kind of aesthetic feeling, embodiment be the grade of " wearing no make-up during an audience with the emperor ".Clear-water concrete has simple and unadorned, sedate naturally outward appearance charm, inherent thick and heavy and elegant be that some modern architecture materials can't be imitateed and match in excellence or beauty.The soft feeling that material itself has, firm sense, warming sense, cold and detached sense not only exert an influence to people's sense organ and spirit, and can give expression to the building emotion.Therefore architects think that this is a kind of simplicity of noble quality, seem simple, the splendid artistic effect that has more of its fullsized.Clear-water concrete still is in developing stage, belongs to emerging construction technology, and the unit that really grasps the design of this type of building and construction is few.The decorative effect that the clear-water concrete metope is final, 60% depends on the quality of concreting, and 40% depends on the transparency protected spraying application in later stage, and therefore, clear-water concrete is a kind of great challenge to the building operations level.
Summary of the invention
The objective of the invention is for overcoming above-mentioned the deficiencies in the prior art part; a kind of job practices of clear-water concrete protective clear layer is provided; this method comprises the concrete surface processing; the brushing of concrete transparent protecting layer; method is by the standard construction measure; the brushing of concrete transparent protecting layer: basic unit keeps the above curing time of 28d; alkalescence is reduced; the pH value is less than 10; moisture content is lower than 6%; repair the adjustment material and adopt felt to be coated with mode, felt is coated with evenly, and protective clear layer is pure organosilicon material; use drinking water to modulate; roller coating 2h blanking time, brushing osmotic sealing priming paint can prevent the accumulation of salt in the surface soil of base material, increases film adhesive; protective clear layer has elasticity and ductility, with reply concrete shrinkage or expansion.
The present invention realizes with following technical scheme: a kind of job practices of clear-water concrete protective clear layer; mainly comprise surfacing and brushing method that brushing is preceding: it is characterized in that: this method comprises that concrete surface is handled, the brushing of concrete transparent protecting layer; when environment temperature is lower than 5 degrees centigrade or be higher than 40 degrees centigrade; ambient humidity is the high humility more than 70%; or sleet, thick fog weather; avoid construction, specifically carry out as follows:
1, concrete surface is handled before the brushing:
(1) the big or bigger concrete of aberration to minority part defective, clean with scavenger specially, wash with giant again, the place of adopting the angle grinding machine will expose metal is polished to and is lower than concrete surface 0.4-0.5mm, is coated with and brushes rustproof paint, repairs smooth with flexible putty, with adjusting material color is transferred to and big metope basically identical then, polish again and the putty repairing, honeycomb is suitably repaired than the place of comparatively dense, make its color and concrete surface color basically identical;
(2) concrete beam, plate, post surface diameter need carry out filling greater than the honeycomb hole more than the 4mm and width greater than the crackle more than the 0.3mm and repair the back graver and even out, clean whole beam, plate, post and make its drying with clear water, repair, clear up the back to application, the position that commute pollutes hides protection, with the above liquid honing of 80 orders, with adjusting material color is transferred to and former metope solid colour again;
2, concrete transparent protecting layer brushing:
(1) basic unit should keep the above curing time of 28d, and alkalescence is reduced, and the pH value is less than 10, and moisture content is lower than 6%;
(2) repair the adjustment material and adopt felt to be coated with mode, felt is coated with evenly, and holiday must not be arranged; Protective clear layer is pure organosilicon material, uses drinking water to modulate roller coating 2h blanking time;
(3) osmosis type priming paint adopts the roller coating mode, and roller coating is even, and holiday must not be arranged; Protective clear layer is pure organosilicon material, uses drinking water to modulate; Roller coating 2h blanking time; Brushing osmosis type seal coat can prevent the anti-alkali of base material, increases film adhesive;
(4) translucent finish paint twice adopts the roller coating mode, and roller coating is even, and holiday must not be arranged; Protective clear layer is pure organosilicon material, uses drinking water to modulate; Roller coating 2h blanking time, brushing consumption are 4m2/kg.
Advantage of the present invention is: this method comprises the concrete surface processing; the brushing of concrete transparent protecting layer; method is by the standard construction measure; the brushing of concrete transparent protecting layer: basic unit keeps the above curing time of 28d; alkalescence is reduced; the pH value is less than 10; moisture content is lower than 6%; repair the adjustment material and adopt felt to be coated with mode, felt is coated with evenly, and protective clear layer is pure organosilicon material; use drinking water to modulate; roller coating 2h blanking time, brushing osmotic sealing priming paint can prevent the accumulation of salt in the surface soil of base material, increases film adhesive; protective clear layer has elasticity and ductility, with reply concrete shrinkage or expansion.
The specific embodiment
Embodiment,
This method comprises that concrete surface is handled, the brushing of concrete transparent protecting layer, and when environment temperature is lower than 5 degrees centigrade or be higher than 40 degrees centigrade, ambient humidity is the high humility 70% or more, or sleet, thick fog weather, avoids constructing, and specifically carries out as follows:
1, concrete surface is handled before the brushing:
(1) the big or bigger concrete of aberration to minority part defective, clean with scavenger specially, wash with giant again, the place of adopting the angle grinding machine will expose metal is polished to and is lower than concrete surface 0.4-0.5mm, is coated with and brushes rustproof paint, repairs smooth with flexible putty, with adjusting material color is transferred to and big metope basically identical then, polish again and the putty repairing, honeycomb is suitably repaired than the place of comparatively dense, make its color and concrete surface color basically identical;
(2) concrete beam, plate, post surface diameter need carry out filling greater than the honeycomb hole more than the 4mm and width greater than the crackle more than the 0.3mm and repair the back graver and even out, clean whole beam, plate, post and make its drying with clear water, repair, clear up the back to application, the position that commute pollutes hides protection, with the above liquid honing of 80 orders, with adjusting material color is transferred to and former metope solid colour again;
2, concrete transparent protecting layer brushing:
(1) basic unit should keep the above curing time of 28d, and alkalescence is reduced, and the pH value is less than 10, and moisture content is lower than 6%;
(2) repair the adjustment material and adopt felt to be coated with mode, felt is coated with evenly, and holiday must not be arranged; Protective clear layer is pure organosilicon material, uses drinking water to modulate roller coating 2h blanking time;
(3) osmosis type priming paint adopts the roller coating mode, and roller coating is even, and holiday must not be arranged; Protective clear layer is pure organosilicon material, uses drinking water to modulate; Roller coating 2h blanking time; Brushing osmosis type seal coat can prevent the anti-alkali of base material, increases film adhesive;
(4) translucent finish paint twice adopts the roller coating mode, and roller coating is even, and holiday must not be arranged; Protective clear layer is pure organosilicon material, uses drinking water to modulate; Roller coating 2h blanking time, brushing consumption are 4m2/kg.
Table 1 is concrete transparent protecting layer brushing index:
Claims (2)
- A kind of job practices of clear-water concrete protective clear layer; mainly comprise surfacing and brushing method that brushing is preceding: it is characterized in that: this method comprises that concrete surface is handled, the brushing of concrete transparent protecting layer; when environment temperature is lower than 5 degrees centigrade or be higher than 40 degrees centigrade; ambient humidity is the high humility more than 70%; or sleet, thick fog weather; avoid construction, specifically carry out as follows:1. concrete surface is handled before the brushing:(1) the big or bigger concrete of aberration to minority part defective, clean with scavenger specially, wash with giant again, the place of adopting the angle grinding machine will expose metal is polished to and is lower than concrete surface 0.4-0.5mm, is coated with and brushes rustproof paint, repairs smooth with flexible putty, with adjusting material color is transferred to and big metope basically identical then, polish again and the putty repairing, honeycomb is suitably repaired than the place of comparatively dense, make its color and concrete surface color basically identical;(2) concrete beam, plate, post surface diameter need carry out filling greater than the honeycomb hole more than the 4mm and width greater than the crackle more than the 0.3mm and repair the back graver and even out, clean whole beam, plate, post and make its drying with clear water, repair, clear up the back to application, the position that commute pollutes hides protection, with the above liquid honing of 80 orders, with adjusting material color is transferred to and former metope solid colour again;
- 2. concrete transparent protecting layer brushing:(1) basic unit should keep the above curing time of 28d, and alkalescence is reduced, and the pH value is less than 10, and moisture content is lower than 6%;(2) repair the adjustment material and adopt felt to be coated with mode, felt is coated with evenly, and holiday must not be arranged: protective clear layer is pure organosilicon material, uses drinking water to modulate roller coating 2h blanking time;(3) osmosis type priming paint adopts the roller coating mode, and roller coating is even, and holiday must not be arranged: protective clear layer is pure organosilicon material, uses drinking water to modulate; Roller coating 2h blanking time; Brushing osmosis type seal coat can prevent the anti-alkali of base material, increases film adhesive;(4) translucent finish paint twice adopts the roller coating mode, and roller coating is even, and holiday must not be arranged: protective clear layer is pure organosilicon material, uses drinking water to modulate; Roller coating 2h blanking time, brushing consumption are 4m2/kg.
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| CN 201110222115 CN102352677B (en) | 2011-07-28 | 2011-07-28 | Construction method for as-cast finish concrete transparent protective layer |
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| CN 201110222115 CN102352677B (en) | 2011-07-28 | 2011-07-28 | Construction method for as-cast finish concrete transparent protective layer |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470067B (en) * | 2013-10-08 | 2015-07-15 | 武汉武大巨成结构股份有限公司 | Transformation and construction method used for facing bare concrete of existing building outer wall |
| CN103938758B (en) * | 2014-04-22 | 2015-12-02 | 巨匠建设集团有限公司 | The preparation method of the concavo-convex graining body of wall of a kind of clear-water concrete |
| CN104088415A (en) * | 2014-06-30 | 2014-10-08 | 北京市蓝宝新技术有限公司 | Construction method for finish concrete surface repair protective agent |
| CN105777045B (en) * | 2016-02-06 | 2018-05-29 | 辽宁省水利水电科学研究院 | Osmosis type interface processing coating construction method under a kind of wet environment |
| CN105756360B (en) * | 2016-04-01 | 2017-12-22 | 中国建筑第八工程局有限公司 | The finished product protection system on inclined-plane and guard method on the outside of inclined-plane clear-water concrete structure |
| CN106593001A (en) * | 2016-12-16 | 2017-04-26 | 山东电力建设第工程公司 | Clear water concrete wall surface repairing method |
| CN107152170A (en) * | 2017-04-18 | 2017-09-12 | 山东电力建设第工程公司 | A kind of repairing technique of concrete |
| CN107119807B (en) * | 2017-05-18 | 2019-03-12 | 山东电力建设第一工程公司 | A kind of construction method of faced concrete surface protection |
| CN107617549B (en) * | 2017-09-28 | 2020-07-03 | 佛山华盾人防工程有限公司 | Anticorrosive coating process for reinforced concrete civil air defense door |
| CN116273800A (en) * | 2023-02-15 | 2023-06-23 | 保利长大工程有限公司 | Complete set anti-corrosion construction method for marine environment bridge member |
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Effective date of registration: 20190225 Address after: 221000 West Dahuangshan Village, Dahuangshan Street Office, Xuzhou Economic and Technological Development Zone, Xuzhou City, Jiangsu Province Patentee after: Jiangsu Sincerity Engineering Technology Research Institute Co., Ltd. Address before: No. 26, Xue Yuan Road, Quanshan District, Xuzhou, Jiangsu Patentee before: Jiangsu Institute of Architectural Technology |