Coating process: detection of the advantages and disadvantages of civil engineering in the early stage of painting process

Core tip: for the reason that jcta-660 cement floor treatment agent is used for the third floor, "due to the local sanding phenomenon in the installation process of equipment on the surface of the third floor, the local construction unit adopts jcta-660 cement floor treatment agent for the third floor surface treatment with the approval of the design." Jcta-660 cement floor treatment agent is used to evaluate the concrete surface "During the treatment, the original ground is not watered enough, and the thickness of scraper brush is also thin (the product specification requires 4-5mm),", Paint knowledge how about Akzo Nobel Powder Coating Recommended introduction: powder coating is a kind of coating with different form from general coating, which is in powder form It is a new type of coating, because of its own advantages and more and more known by people Let's introduce Akzo Nobel Powder coating Akzo Nobel Powder coating is a cost-effective coating solution, which can be applied to different kinds of products After the treatment of static electricity and fire baking, a tough and durable coating surface will be formed, with the least impact on the environment Since the introduction of this technology, powder coating has been able to continue to maintain the Home of coatings: for the reason that jcta-660 cement floor treatment agent is used for the third floor, "due to the local sanding phenomenon during the equipment installation, the local construction unit adopts jcta-660 cement floor treatment agent for the third floor with the approval of the design." Concrete Jcta-660 cement floor treatment agent was used to evaluate the surface "During the treatment, the original ground was not watered enough, and the thickness of scraper brush was also thin (the product specification requires 4-5mm), so that the solid powder of the treatment agent could fully hydrate, resulting in the strength and the acceptance of the civil engineering quality in the early stage of the concrete coating process The mix proportion notice and test report of the civil engineering in the early stage of the coating project If it is out of control, it will inevitably cause quality disputes or legal proceedings Irresponsible project quality verification certificate may become the umbrella of tofu dregs project and set a trap for subsequent coating project construction The follow-up coating engineering should strengthen the self-protection consciousness and insist on the quality inspection of the base concrete The test results show that the fine aggregate concrete is crushed and the structural layer concrete is basically intact, with a compressive strength of 22.92mpa Shanghai housing quality inspection station workshop ground engineering quality evaluation Shanghai housing quality inspection station was entrusted by a District People's court to test the floor strength of the workshop of the seat company and analyze the causes of the damage of the epoxy coating Floor (hfj001 Zi No 2003-196): (1) on the third floor, "the bottom surface of the coating is adhered with jcta-660 cement floor treatment and mortar layer, and the mortar layer is sparse Pine At the place where the coating Floor falls off, the fine aggregate concrete base has exposed the stone, which indicates that there is obvious sanding phenomenon in the base "; (2) the construction procedures of jcta-660 cement floor treatment agent are as follows: remove the sand, hollowing and loose floor, clean the floating ash, and spray water to wet it; mix the floor treatment agent with water fully and evenly, (the water cement ratio is about 1:4) apply the mud board powder (dense with force) It is about 4-5mm thick, but jcta-660 cement floor treatment agent did not carry out necessary interface treatment during construction; (3) analysis of the damage cause of epoxy coating floor "In view of the serious sanding phenomenon of the third floor, jcta-660 cement floor treatment agent was used to treat the surface of fine aggregate concrete at the base However, due to the lack of necessary interface treatment during construction, there is no effective bond between the cement floor treatment agent and the base fine aggregate concrete "; (4) test conclusion: the peeling phenomenon of the epoxy coating floor on the second and third floors of the tested house is mainly related to the loose surface, sand and low strength of the base fine aggregate concrete Among them, the sanding phenomenon of three floors is more serious than that of two floors; (5) the mortar layer on the surface of fine aggregate concrete of the base course and jcta-660 cement floor treatment agent are adhered on the bottom of epoxy coating, and the damage surface is on the mortar layer on the surface of fine aggregate concrete of the base course, which shows that the tensile bond strength of the mortar layer on the surface of fine aggregate concrete of the base course is lower than that of epoxy coating and the base course The above examples show that there are different evaluations on the quality inspection of the same project, which has profound lessons for the subsequent coating projects In order to strengthen the consciousness of self-protection, we must master a set of quality testing methods Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,