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Heat insulating wall material made from desulfurized gypsum and other solid wastes

A technology of solid waste and waste gypsum, which is applied in the field of civil engineering and construction materials, to achieve the effects of reducing production costs, solving difficult processing problems, and making production simple

Inactive Publication Date: 2010-06-16
WENZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This new type of wall material uses solid waste such as waste mud and desulfurized gypsum as raw materials, and the sintered bricks made of it solve the problem of environmental pollution caused by solid waste, protect cultivated land resources, and realize the recycling of solid waste

Method used

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  • Heat insulating wall material made from desulfurized gypsum and other solid wastes
  • Heat insulating wall material made from desulfurized gypsum and other solid wastes
  • Heat insulating wall material made from desulfurized gypsum and other solid wastes

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Embodiment 1

[0016] After the designed and measured desulfurized gypsum, expanded perlite powder, mud cake, coal cinder and curing agent are evenly stirred, age for 48 hours and set aside. The aged material is made into adobe, and the dimensions of the wet adobe are: length 250mm, width 120mm, height 93mm. After drying (using the heat released from the flue of the roasting kiln), the overall dimensions of the dry adobe brick are: length 242mm, width 118mm, height 91mm, moisture content less than 7%. Send it to the wheel kiln for roasting, and control the roasting temperature at 800°C to 1100°C to make solid waste heat-insulating sintered bricks.

[0017] The finished sintered bricks were tested for compressive strength. The test results are shown in Tables 1-4.

[0018] After the finished sintered bricks are built into a wall of 1m×2m, the heat transfer coefficient test of the wall is carried out. The test results are shown in Tables 1-4.

[0019] Table 1 The weight ratio of each compo...

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Abstract

The invention aims to provide a method for manufacturing a high-performance and low-cost heat insulating wall material from solid wastes which can be applied to actual production. The novel wall material takes waste slurry and desulfurized gypsum and other solid wastes as raw materials. The manufactured baked brick solves the problem of environmental pollution caused by the solid wastes, protects farmland resources and realizes cyclic utilization of the solid wastes.

Description

technical field [0001] The invention relates to a method for making solid waste thermal insulation wall materials, in particular to a method for making sintered bricks suitable for desulfurized gypsum, expanded perlite, mud cake after solidification of waste mud, and waste coal slag from tanneries, which belongs to civil engineering and construction material technology field. Background technique [0002] Wall insulation is an important part of building energy conservation. There are three modes of wall insulation: external insulation, internal insulation and self-insulation. The external thermal insulation mode is to wrap a thermal insulation layer on the base layer outside the external wall through construction techniques such as powder, spraying, and pasting, so that the heat transfer resistance meets the energy-saving design standards; Hollowing, cracking, falling off and other phenomena, and structural defects such as local mildew, condensation and even frost formatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B30/00
CPCC04B28/144C04B2111/28Y02W30/91C04B14/185C04B14/308C04B18/0418C04B18/141
Inventor 丁光亚王军杨芳孙林柱李校兵
Owner WENZHOU UNIVERSITY