Study on the Influence of Foaming Agent on the Performance of Foam Concrete Used for Backfilling Abutment
In order to explore the main performance differences of foamed concrete under different conditions,the effect of foaming agent on the performance of foamed concrete used for abutment backfilling was studied in this paper.The results show that the 28 d compressive strength of foamed concrete decreases significantly with the increase of foaming agent dosage,and the dry density decreases gradually.The fluidity of con-crete mix decreases in the early stage and tends to be stable in the later stage.In foamed concrete,the amount of water used for mixing foaming agent will affect the dry density and 28 d compressive strength of foamed concrete,and the influence range is smaller than the amount of foa-ming agent.
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