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Old roof waterproof refurbishment method and exposed weather-resistant color waterproof coating used

A waterproof coating and exposed technology, which is applied in asphalt coatings, roof insulation materials, coatings, etc., can solve the problems of partial maintenance, failure of waterproof and thermal insulation systems, and defects that are difficult to detect with the naked eye, so as to achieve no secondary pollution and excellent performance. Excellent anti-aging performance and film-forming effect

Active Publication Date: 2019-06-18
JIANGYIN CHAMPION CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The inverted roof (the roof is composed of concrete structural slabs from bottom to top; leveling layer; waterproof layer; heat insulation layer; protective layer) leaks and can be partially repaired (because it is easy to find the leak point, it is easy to repair, simply repair the leak point), and the vertical roof (roof from bottom to top is concrete structural slab; heat insulation layer; leveling layer; waterproof layer; protective layer), since the waterproof layer is placed on the upper part of the thermal insulation layer, once the waterproof layer is damaged, It will make the lower insulation layer become a penetrating water storage layer, and it will accumulate for a long time, resulting in the failure of the waterproof and thermal insulation system. Partial repairs will not help, so the overall renovation must be carried out
During overall refurbishment, if the whole is not dismantled and repaired directly, due to the water storage in the lower part, the traditional waterproof material will be quickly damaged by the water vapor generated by the evaporation of the lower water after the construction, and some defects caused by the damage are difficult to be found by the naked eye; If it is dismantled as a whole, it will inevitably produce noise, dust pollution, and huge waste, and the construction period will be long and the cost will be high
During the construction process, in case of rainy weather, even more serious leakage may occur

Method used

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  • Old roof waterproof refurbishment method and exposed weather-resistant color waterproof coating used

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The old roof waterproof renovation construction method, first clean the base surface 1 of the old roof. Surface 1 is allowed to be wet but free of clear water, uneven, loose, bulging, peeling, cracked, pitted, etc., grease, dust, etc., and use a 2-meter ruler to check the flatness of base surface 1, and the deviation must not be allowed More than 5mm, no grease, dust, etc. Then strengthen the cracks on the roof. For wide cracks such as male and female corners, pipe root parts, expansion joints, deformation joints, and cracked base surfaces, use node sealing paste to carry out detail strengthening treatment; for narrow cracks (less than 1mm) spray water-based non-curing coating 2 (thickness 1.0mm, width about 200mm) and then lay non-woven fabric on it, the non-woven fabric is preferably needle-punched or spunlace non-woven fabric with a width of about 150mm, specification: 50 g / ㎡ , use a wide brush to lay the non-woven fabric flat and without wrinkles; the non-woven fab...

Embodiment 2

[0036] The difference from Example 1 is that the composition of the exposed anti-aging waterproof coating includes by weight: 50 parts of pure acrylic emulsion, 3 parts of propylene glycol, 55 parts of powder, 5 parts of filler and 4 parts of other auxiliary agents; The glass transition temperature of the pure acrylic emulsion is between -40°C; the powder is a mixture of quartz powder, titanium dioxide, ground calcium carbonate, kaolin, barium sulfate, wollastonite, mica powder, and talcum powder; the filler is A mixture of gaseous SiO2, ZnO, and quartz powder; the other additives include wetting agents, dispersants, defoamers, film-forming aids, cosolvents, preservatives, antifungal agents, thickeners, and pH regulators The mixture, the dosage of each component is dispersant 1.5, wetting agent 0.5, defoamer 0.8, preservative 0.3, antifungal agent 0.3, pH regulator 0.15, thickener 0.3, film-forming aid 1.5; The dispersant is a mixture of organic dispersant and inorganic disper...

Embodiment 3

[0038] The difference from Example 1 is that the composition of the exposed anti-aging waterproof coating includes by weight: 30 parts of pure acrylic emulsion, 2 parts of propylene glycol, 35 parts of powder, 3 parts of filler and 2 parts of other auxiliary agents; The glass transition temperature of pure acrylic emulsion is between -15°C and -40°C; the powder is talcum powder; the filler is quartz powder; the other additives include wetting agents, dispersants, and The dosage is 1 dispersant and 0.3 wetting agent; the dispersant is an inorganic dispersant; the thickener is cellulose.

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Abstract

The invention discloses a waterproof refurbishment construction method for an old roof and used exposing-type weather resistance colorful waterproof coating. The method comprises the steps that A, a base surface is cleaned; B, a crack is subjected to reinforcing treatment; C, joint treatment is conducted; D, water-based non-curing coating is sprayed on the base surface; E, a strengthening layer is laid on the water-based non-curing coating in the step D; and F, airing is conducted, till moisture in the water-based non-curing coating in the step D is volatilized, and the exposing-type weather resistance colorful waterproof coating is laid on the strengthening layer in the step E. By utilizing super-high cohesive force and creep self-healing performance of the water-based non-curing coating, the excellent weather resistance, colorful decoration performance and sprayability performance of the exposing-type weather resistance colorful waterproof coating and isolating and air permeable performance of a non-woven fabric, the advantages are given to full play, and composite construction is achieved, so that waterproof maintenance of the forward-arranged roof becomes simple. Pollution is reduced, and the construction period is shortened. Meanwhile, compared with a process of overall detaching a thermal insulation layer, the construction cost is reduced greatly.

Description

technical field [0001] The invention relates to an old roof waterproof renovation construction method and the used exposed weather-resistant color waterproof paint, especially the overall waterproof maintenance of the vertical roof of the building that has been put into use and has strict requirements on noise pollution and dust pollution. Background technique [0002] With the increase of the service life of the building, after the original waterproof layer of the roof reaches a certain service life, leakage will occur due to various reasons such as aging and structural deformation, and it needs to be repaired and renovated. The inverted roof (the roof is composed of concrete structural slabs from bottom to top; leveling layer; waterproof layer; heat insulation layer; protective layer) leaks and can be partially repaired (because it is easy to find the leak point, it is easy to repair, simply repair the leak point), and the vertical roof (roof from bottom to top is concrete...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04G23/03E04D13/16C09D195/00C09D133/04C09D7/61
CPCC08K3/346C08K3/36C08K2003/2241C08K2003/265C08L2205/025C08L2205/035C09D7/61C09D7/65C09D133/04C09D195/00E04D13/16E04G23/0281C08L53/02C08L9/02
Inventor 冯永沈春林褚建军
Owner JIANGYIN CHAMPION CHEM
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