Composite curing agent for sludge modified subgrade soil and resource utilization method

The invention discloses a composite curing agent for sludge modified subgrade soil and a resource utilization method. The composite curing agent is prepared from the following raw materials in parts by weight: 4 to 6 parts of cement, 4 to 6 parts of fly ash, 30 to 70 parts of waste ash and 0.3 to 0....

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Bibliographische Detailangaben
Hauptverfasser: YIN JIFU, JIANG SHUAI, LIANG XIN, HONG GUOJUN, FENG BO, LIU GONGXUN, WANG FEIXIN, MAO XIAODAN, TIAN JIUHUI, LIU RUOYUAN
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:The invention discloses a composite curing agent for sludge modified subgrade soil and a resource utilization method. The composite curing agent is prepared from the following raw materials in parts by weight: 4 to 6 parts of cement, 4 to 6 parts of fly ash, 30 to 70 parts of waste ash and 0.3 to 0.7 part of active exciting agent. According to the resource utilization method, the composite curing agent with the waste ash residues as the main component is used for modifying the sludge, the composite curing agent has the remarkable sludge curing effect, the treated modified soil can meet the strength requirement of high roadbed filler after being naturally cured for 7-14 days, and the modified soil can be directly spread and rolled after being simply tedded to adjust the water content; and the water stability is good. Compared with an existing curing agent for sludge modified subgrade soil, the subgrade soil modified by the composite curing agent provided by the invention is high in strength, good in water stab