Preparation and Mechanical Properties of Biomass Ash Light Soil
In order to solve the problem of a large amount of biomass ash accumulation generated by biomass power generation,this article uses biomass ash as raw material and cement and fly ash as binders to prepare a lightweight,high-strength and good flowability biomass ash lightweight soil.Using consistency and strength as control indicators,orthogonal experiments were used to analyze different influencing factors to determine the optimal mix ratio.Then,unconfined compressive strength and durability tests were conducted on biomass ash lightweight soil under the optimal mix ratio.The experimental results show that the proportion of cement in the binder and the water solid ratio have a significant impact on the strength,while the water solid ratio and the proportion of binder in the mixture have a significant impact on the consistency.The unconfined compressive strength of biomass ash increases with age and binder content..In terms of durability,the water stability and freeze-thaw stability of biomass ash lightweight soil increase with the increase of binder content.
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