一种高含水率淤泥用早强高强型固化剂

By using an early-strength and high-strength curing agent, the problem of slow curing of sludge with high water content is solved by utilizing the CaC2 hydration reaction and the expansion agent to fill the pores. This achieves a rapid and efficient sludge curing effect and improves the early and later strength of the sludge.

CN118184283BActive Publication Date: 2026-07-17JIANGSU SOBUTE NEW MATERIALS CO LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JIANGSU SOBUTE NEW MATERIALS CO LTD
Filing Date
2022-12-13
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies are unable to quickly and efficiently solidify sludge with high water content, resulting in high construction costs, low construction efficiency, and generally poor solidification effects, making it impossible to achieve rapid solidification of sludge with high water content.

Method used

The product uses an early-strength and high-strength curing agent, which includes cement, lithium slag powder, gypsum, dispersant, expanding agent, thickener and mineral admixture. Through the CaC2 hydration reaction, heat energy is released and alkaline substances are generated to activate the hydration activity of lithium slag powder. Combined with the expanding agent to fill the pores, a dense structure is formed, achieving rapid early strength formation.

Benefits of technology

The unconfined compressive strength exceeded 150 kPa within 1 day, 400 kPa within 3 days, and 1 MPa within 28 days, significantly improving the solidification speed and strength of sludge with high water content and reducing construction costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明提供了一种高含水率淤泥用早强高强型固化剂,包括以下质量百分数的原料;水泥15~30%;锂渣粉15~35%;石膏3~6%;CaC24~7%;分散剂0.1~0.3%;膨胀剂3~5%;增稠剂0.1~0.3%;余量为矿物掺合料。该固化剂利用CaC2水化反应释放的热能及水化反应生成的碱性物质,快速激发锂渣粉的水化活性,锂渣粉中的活性铝相与石膏反应可将淤泥中的大量液态水转化为结晶水,显著提高固化土体系中固相物质占比,降低结构孔隙率,固相颗粒快速搭接产生骨架效应,结合CaC2水化放热对水泥的水化促进作用,水泥水化产物对土胶粒形成胶结作用,从而实现高含水率淤泥固化土早期强度快速形成;本发明将锂渣粉和矿物掺合料作为主要成分,实现工业废渣的资源化利用,低碳环保。
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