Method for preparing light wall board by utilizing construction waste and muck

Abstract

The invention relates to a method for preparing a light wall board by utilizing construction waste and muck. The method comprises a material proportioning process and a manufacturing process flow. Thematerial comprises the following components: 70-80% of construction waste and 20-30% of waste muck, and a foaming agent accounts for 0.2-0.8% of total materials. The technological process is as follows: 1) separately crushing construction waste and waste muck, carrying out sieving and drying; 2) separately carrying out ball milling; 3) carrying out metering according to a proportion; 4) carryingout dry stirring on the materials in a stirrer for 2 minutes; 5) putting the mixed powder into a mold, and feeding the mold into a sintering kiln for sintering; 6) sequentially carrying out preheating, sintering and cooling, and taking the obtained material out of the kiln after the material is cooled to 40 DEG C; 7) taking out the light wall board green body, and cutting the light wall board green body into a specified size and shape according to requirements of drawings; 8) carrying out lineation, machining vertical through holes and transverse through holes, vertically threading the throughholes, and transversely threading the through holes; 9) placing vertical reinforcing steel bars into the vertical through holes, and placing transverse reinforcing steel bars into the transverse through holes; 10) pouring concrete into the vertical through holes and the transverse through holes; and 11) carrying out maintaining, checking and warehousing.

Description

technical field [0001] The invention relates to a method for preparing light-weight wall panels by using construction waste and dregs, which belongs to the field of solid waste utilization and building energy-saving wall materials, and specifically relates to a method of using solid waste such as construction waste and waste dregs, which is subjected to high temperature After sintering, it is machined into a light-weight wallboard with functions such as heat preservation, heat insulation, fire prevention, and sound insulation. Background technique [0002] Urbanization, urbanization, and the reconstruction of old cities in shantytowns have produced a large amount of construction waste and waste residue, which have a greater pollution to the environment and groundwater sources; [0003] On the other hand, my country adopts B2 grade combustible material polystyrene insulation board as the most important insulation material for building energy conservation. Although its insulat...

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Problems solved by technology

Although the country attaches great importance to the fire protection of architectural design, and newly formulated the "Code for Fire Protection of Building Design" GB 50016-2014; however, through the practice in recent years, polystyrene insulation boards are still the mainstay, and inorganic insulation materials only account for a very small part , in this small part of inorganic thermal insulation materials, mainly rock wool, aerated concrete blocks, foam concrete blocks and small pieces of foam glass, etc., cannot form large lightweight wall panels, which can not only replace the wall, but also Replacing the insulation layer, it can be fireproof and durable

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