High-strength water resistant sheet material

Abstract

The invention belongs to the technical field of walling material, which more particularly relates to a high-strength water resistance plate which is formed by combining cement, silica fume, quartz powder, fine sand, a water reducing agent, steel fiber and polypropylene fiber. The cement is one of Portland cement with the strength level more than or equal to 42.5 level or ordinary Portland cement; the fineness of the quartz powder is 320 meshes; the fine sand is 28 to 45 meshes; the water reducing agent is a polycarboxylate water reducing agent, and the steel fiber and the polypropylene are incorporated. The high-strength water resistance plate causes the paste flow property of plate to be good by adopting novel water reducing agent to reach self-leveling molding; the anti-folding strength of plate can be adjusted according to the different volume quantity of the steel fiber, and the anti-folding strength can reach about 20MPa with the water absorption rate being about 1 percent when the volume quantity of steel fiber is 1.5 percent.

Description

technical field [0001] The invention belongs to the technical field of wall materials, and in particular relates to a high-strength water-resistant plate. Background technique [0002] In the past, the wall material was mainly solid clay bricks. Considering the long-term development strategy of resource conservation, environmental protection, and energy maintenance, it is not conducive to the sustainable development of human beings. With the demand of construction industrialization, the proportion of building boards in wall materials is increasing, reaching 64% in Japan, 41.9% in the United States, and only about 3% in my country. Building panels will become a key trend in the development of wall materials in the future. [0003] Commonly used building boards include cement boards, gypsum boards, silicon calcium boards, glass magnesium boards, etc. At present, there are mainly cement substrates, gypsum boards, silicon-calcium boards, and glass magnesium boards. The water ...

AI Technical Summary

Problems solved by technology

The water absorption rate of all these boards is very large, the index is between 5% and 30%. When used for exterior wall decoration, waterproof treatment must be carried out, which increases the process and cost; the strength is not very high, and they are all within 20MPa.

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