再生微粉泡沫混凝土力学性能研究

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中图分类号：TU55 文献标志码：A 文章编号：1005-8249（2025）03-0043-06

DOI：10.19860/j.cnki.issn1005-8249.2025.03.008

Abstract：Inorder toimprove thelevelofresourceutilizationofconstruction waste，theresearchonthe preparationof ecycled micro-powderfoam concrete by physical foaming process was carried out.The amountof fixed recycled fine powder is 10% of thetotalamountofcementitiousmaterials.TheX-raydifractionpaternofrecycledmicro－powderfoamconcretewas analyzed，andtheinfluenceof water-binderratioonthe strength ofrecycled micro-powderfoamconcretewas revealed.The efect of adding rubber powderandfiberonthe performance ofrecycled micro-powder foam concrete was analyzed.The results showthatthe flexuralandcompresive strengthof recycledmicro-powder foam concrete increase with the decreaseof waterbinderratio，andtheoverallawissimilartothatofordinaryconcrete，buttheincreaseisgreater.Theaditionofruber powderand fibercan improvethedistributionofporesizein foamconcrete，increase theproportionofsmallpores in the specimen，and improvethecompresive strengthand flexural strengthofrecycledfine powderfoamconcrete.The findingsmay provide guidance for related engineering projects.

Key words：recycled powder； foam concrete；pore structure；mechanical properties

0 引言

随着我国新型城镇化建设的不断推进，我国建筑垃圾年产生量已突破20亿t。（剩余6156字）