Treatment method for construction residue soil in construction waste

Abstract

The invention relates to a treatment method for construction residue soil in construction waste. The method comprises the following steps: performing material separation on the construction waste to obtain the construction residue soil, detecting a chemical component content of the obtained construction residue soil, performing preparation to obtain a cement raw material including limestone, the construction residue soil, an iron raw material and sandstone, enabling a saturation ratio of the cement raw material to be 0.8-1.0, a silicon ratio to be 1.9-2.5 and an aluminum ratio to be 1.3-1.9, and producing cement clinker. The treatment method for the construction residue soil in the construction waste provided by the invention can continuously and effectively utilize the construction residue soil in the construction waste and is almost not limited by generation time and regions of the construction waste of each batch, and after high-temperature calcination is performed to form the cement clinker, harmful substances mixed in the construction residue soil are solidified in the cement clinker and do not cause harm to the environment and humans, and cement products produced by the method are qualified.

Description

technical field [0001] The invention relates to the field of construction waste treatment, in particular to a treatment method for construction dregs in construction waste. Background technique [0002] With the continuous acceleration of urbanization, the amount of urban construction waste is increasing rapidly. The construction waste generated by construction in my country alone is about 100 million tons every year. [0003] At present, construction dregs in construction wastes have been used as roadbed fillers, or construction dregs in construction wastes have been used to produce calcined energy-saving bricks, calcined clear water wall decoration blocks, calcined ceramic plates, concrete, etc. However, the sources of construction slag in construction waste are relatively scattered, and the construction sequence is different, which will cause great differences in the quality of slag, and it is generally not easy to meet the production requirements of calcined energy-savin...

AI Technical Summary

Problems solved by technology

However, the sources of construction slag in construction waste are relatively scattered, and the construction sequence is different, which will cause great differences in the quality of slag, and it is generally not easy to meet the production requirements of calcined energy-saving bricks, calcined clear water wall decoration blocks, calcined ceramic panels, concrete, etc. The simultaneous demand for construction dregs from time or roadbed fillings, which limits the wide application of construction dregs, leads to the fact that most construction wastes still need to be landfilled.

Landfill is used to dispose of construction waste in construction waste. Long-term stockpiling will occupy a large amount of land and easily bring about safety hazards such as environmental pollution.