Mix proportion design method of recycled all-light concrete

Abstract

The invention provides a mix proportion design method of recycled all-light concrete, and belongs to the field of building materials. The design method comprises the following steps: (1) determining the water-binder ratio and the unilateral initial dosage of each raw material in the neat paste; (2) screening the regenerated light material, and determining the primary clear distance of the regenerated light material according to the mass of screen residues with different particle sizes; (3) determining the unit dosage of the regenerated light material and the net slurry according to the primaryclear distance; and converting the preliminarily determined dosage of each raw material into a preliminary reference mix proportion; (4) performing trial mixing optimization on the preliminary reference mix proportion to obtain a reference mix proportion; and (5) detecting raw material indexes for production adjustment, and converting the reference mix proportion into a production mix proportion.By means of the method, the reasonable use of the regenerated powder and the regenerated light material in the regenerated full-light concrete is realized, the internal stress balance is met, and theworkability and the cost performance are both considered.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a mixing ratio design method of recycled all-light concrete. Background technique [0002] With the overall development of the economy in various industries, natural resources are becoming more and more scarce, and more and more wastes are produced. Concentrated stacking of various wastes not only takes up space, but also seriously pollutes the environment. Therefore, how to recycle various wastes has become a common concern of people. [0003] Due to the large number of types and different characteristics of various wastes, there is no reasonable allocation method to use them in the construction field, resulting in a small amount of use in the construction field, a small range of use, or a low comprehensive recycling rate. [0004] At present, there are mainly the following technical bottlenecks in the configuration methods of various wastes in the process of recycli...

AI Technical Summary

Problems solved by technology

Collecting all kinds of wastes not only takes up space, but also seriously pollutes the environment. Therefore, how to recycle all kinds of wastes has become a common concern of people.

[0003] Due to the large number of types and different characteristics of various wastes, there is no reasonable allocation method to use them in the construction field, resulting in a small amount of waste in the construction field, too small a range of use, or a low comprehensive recycling rate

[0004] At present, there are mainly the following technical bottlenecks in the configuration methods of various wastes in the process of recycling: First, the characteristics of recycled powders are different. When recycling, it is time-consuming to study various solid inorganic wastes individually or in combination. The cost is very high; the second is that there is a lot of commercial agricultural light waste, and the light material after crushing is highly discrete, which will easily lead to a significant decrease in the overall strength and performance of the concrete; the third is to use recycled powder and recycled light materials in combination. It is more difficult to control, there are many types of raw material waste, and the regional differences are large, and the amount of single waste recycling is limited. Therefore, how to effectively combine and control recycled powder and recycled light materials to turn waste into treasure urgently needs to be solved scientifically and rationally.

Images