Building solid waste mixed cement soil

Abstract

The invention discloses building solid waste mixed cement soil, which comprises building solid waste, soil and a soil body curing agent; according to the building solid waste mixed cement soil, inorganic nonmetal building solid waste and soil which are obtained nearby are used as main materials, the soil body curing agent is used as a secondary material, a certain proportion of water is added, and then through ground mechanical transmission and uniform stirring, a building material with fluidity and certain strength after hardening is formed, and the material can be widely applied to foundation reinforcement, groove backfill, roadbeds, foundation pit supporting curtain walls and mine goaf backfill; the composition and dosage are determined and adjusted according to different requirements of the component properties of soil and the strength of finished products.

Description

technical field [0001] The invention relates to a civil construction material, in particular to a construction solid waste mixed cement soil. Background technique [0002] At present, my country's urbanization is becoming more and more intensive, and the construction waste generated by construction construction is increasing day by day. The amount of construction waste in China has accounted for more than 1 / 3 of the total urban waste. The vast majority of construction waste is transported to the suburbs or villages without any treatment, and is piled up in the open air or landfilled, consuming a lot of high-quality land. [0003] Moreover, in the process of urban construction, we often encounter the problem of backfilling of narrow and ultra-deep foundation pits, as well as the processing needs of soil improvement and reinforcement, such as weak foundation treatment, roadbed reinforcement, etc. In response to these construction requirements, there are certain limitations in...

AI Technical Summary

Problems solved by technology

For the backfilling of narrow and ultra-deep foundation pits, especially deep foundation pits with overhanging structures or complex support structures, it is difficult to achieve the ideal backfilling effect with 28 ash soil and notoginseng ash soil, which often causes the backfill soil to sink and cause serious damage. quality problems

For foundation treatment, the deep mixing method is mostly used. After adding cement and other curing agents to the in-situ soil, it is forced to stir to combine with the soil to improve the strength. However, due to the lack of flow and operating space, this in-situ mixing And mechanical equipment and other reasons are unevenly mixed, resulting in low strength after treatment, and it is more difficult to form piles for foundation pit support curtain walls

[0004] On the other hand, in the foundation treatment of various projects such as urban roads and housing constructions, the excavated and replaced soil and dregs can reach as high as one billion or billions of cubic meters per year. Most of the soil has not been effectively recycled and utilized, but is regarded as waste piled up and discarded, thus causing a lot of waste of land resources and soil resources, and easily causing secondary pollution to the surrounding environment