再生微粉泡沫混凝土力學(xué)性能研究

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中圖分類號：TU55 文獻(xiàn)標(biāo)志碼：A 文章編號：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

隨著我國新型城鎮(zhèn)化建設(shè)的不斷推進(jìn)，我國建筑垃圾年產(chǎn)生量已突破20億t。（剩余6156字）