Engineering Performance Analysis of Stabilized Fly Ash-soil with Curing Agent
By mixing cement and solid waste-based curing agent respectively,the curing effect of fly ash-soil was studied and compared.Through unconfined compressive strength test and water stability test,the influence of the content,type and age of curing agent on the performance of fly ash-soil was discussed,the comprehensive road performance of fly ash-soil solidified by two curing materials was comprehensively evaluated,and the micro-mechanism of fly ash-soil solidified by curing materials was analyzed by X-ray diffraction.The results show that the unconfined compressive strength of solidified fly ash-soil at the same age is positively correlated with the content of solidified materials.Under the same dosage of solidified materials,the strength of fly ash-soil solidified by solid waste-based curing agent is lower at 7d than that solidified by cement,and exceeds that solidified by cement at 28d.The water stability coefficient of solidified fly ash-soil increases with the increase of solidified material con-tent,but decreases with the extension of age.The water stability coefficient of fly ash-soil solidified by solid waste-based curing agent is better than that of cement solidified fly ash-soil in the later stage.
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