Microcrystalline foam wall block produced by tailing sand and its manufacturing method

Abstract

The invention discloses a microcrystalline foamed wall block produced by use of tailings and a manufacturing method of the microcrystalline foamed wall block. According to the microcrystalline foamed wall block, a decorative surface layer is sintered on a tailing microcrystalline foamed base body manufactured by use of a tailing composite material at a high temperature. The manufacturing method comprises the following steps: (1) preheating, namely increasing the temperature to the range of 800-950 DEG C and preserving heat for 10-40 minutes; (2) integrated sintering, namely increasing the temperature to the range of 1000-1350 DEG C and preserving heat for 30-120 minutes; (3) annealing cooling, namely cooling to below 280 DEG C and then taking out of a kiln; (4) naturally cooling to below 100 DEG C and then performing mold stripping, thereby obtaining a microcrystalline foamed wall block board; naturally placing the microcrystalline foamed wall block board for more than 60 hours to eliminate stress, and then grinding or polishing, cutting and drying to obtain the microcrystalline foamed wall block. The microcrystalline foamed wall block has a plurality of functions of high strength, fire resistance, heat preservation and thermal insulation, moisture and water proofing, decoration, light weight, weathering resistance, environmental protection and the like.

Description

technical field [0001] The invention relates to the technical field of building engineering materials, in particular to a microcrystalline foamed wall block produced by using tailing sand and a manufacturing method thereof. Background technique [0002] With the gradual scarcity of energy in the world, my country has formulated the basic principle of "conserving energy and realizing sustainable development". Therefore, building energy conservation has also become a focus of the development of China's construction industry. At present, the main means of building energy conservation is external wall insulation technology, which can effectively solve the problem of energy loss caused by the indoor and outdoor temperature difference between winter and summer in my country. It represents the development direction of my country's energy-saving insulation technology. [0003] The current external wall thermal insulation system is composed of polymer mortar, glass fiber mesh cloth, ...

AI Technical Summary

Problems solved by technology

However, this complex construction method has huge potential problems, which usually appear after a period of time after the construction is completed, or after the temperature cycle changes in winter and summer.

There are four main problems: ①The insulation layer is falling off, which is manifested by the displacement, hollowing and falling off of the insulation board; ②The plastering layer is cracked, which is manifested by the large deformation of the plastering mortar and cracks; ③Indoor condensation, which mainly occurs on the window Nearby, it manifests as indoor frost and condensation, and the wall is damp and moldy; ④The external wall bricks are hollow and falling off, which is manifested as the external wall bricks and materials are hollow and falling off, which not only makes the wall surface unsightly, but also prone to accidents

Inorganic thermal insulation materials have good fire performance. They belong to Class A non-combustible in the fire protection standard. They do not burn or spread in the initial stage of fire, but they also cannot withstand high temperature fire attack. It starts to pulverize above 650°C, and it will be burned into a handful of powder in a real fire, which cannot effectively protect buildings

Moreover, its thermal insulation effect is poor, its capacity is large, it is easy to absorb water, and its weather resistance is poor, so it is difficult to achieve energy saving of 75%.

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