A composite solidifying agent for construction waste recycled fluidized solid soil and a preparation method thereof

By using a multi-component synergistic composite curing agent, problems such as weak interfaces, easy enzyme inactivation, large strength fluctuations, and severe shrinkage cracking in fluidized solidified soil of recycled construction waste are solved, achieving efficient interfacial bonding strength and enzyme activity protection, and reducing costs and carbon emissions.

CN122403901APending Publication Date: 2026-07-17CHONGQING ZHIDI ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHONGQING ZHIDI ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
Filing Date
2026-04-20
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Recycled construction waste materials in fluidized solidified soil have problems such as weak interfaces, easy deactivation of enzymes, large strength fluctuations, and severe shrinkage cracking. Existing solidifying agents cannot effectively solve these problems, and traditional methods are costly and have high carbon emissions.

Method used

A multi-component synergistic composite curing agent is used, including sulfoaluminate cement, slag powder, recycled brick powder, amino-terminated hyperbranched polymer, silane coupling agent, urease composite material, urea microspheres and calcium chloride, etc. The function of each component is maximized through a graded mixing process, thereby improving the interfacial bonding strength and enzyme activity protection.

Benefits of technology

It significantly improves the interfacial bond strength and enzyme activity of fluidized solidified soil made from recycled construction waste, reduces cement usage, decreases carbon emissions, and improves engineering performance and durability.

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Abstract

The present application relates to the field of solidifying agent, and more particularly to a kind of composite solidifying agent for construction waste recycled material flow state solidified soil and preparation method thereof, comprising the following raw materials: sulphoaluminate cement 20-30 parts, slag powder 15-25 parts, recycled brick powder 10-15 parts, amino-terminated hyperbranched polymer 4-7 parts, silane coupling agent 2-4 parts, urease composite material 2-3 parts, urea microspheres 1-3 parts, calcium chloride 0.5-2 parts, construction waste recycled micro powder 10-18 parts, fly ash 5-10 parts.The solidifying agent solves the technical problems of weak interface in construction waste recycled material flow state solidified soil, enzyme activity easy deactivation, large strength fluctuation, serious shrinkage and cracking and the like through multi-component synergistic effect.
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