- 陶李尧1，殷险峰2，罗健林1,3；周桂银2，李秋义4
2020年2期
摘要
引用本文
摘 要：设计了27个配合比，研究了不同种类及掺量的减水剂对再生细骨料砂浆基本工作流变性能与力学性能的影响。结果表明，当粉煤灰掺量为20%时，掺0.55%、0.65%、0.75%的聚羧酸减水剂再生砂浆的2h稠度损失率和28d抗压强度分别为20.18%、17.67%、14.89%和18.1MPa、19.2MPa、20.5MPa，均优于同等掺量下的三聚氰胺减水剂和萘系减水剂。 Abstract: 27mixratios weredesignedtostudytheinfluenceofdifferenttypesanddosagesofwater-reducingagentsontherheologicalpropertiesandmechanicalpropertiesofrecycledfineaggregatemortar.Theresultsshowthatwhentheflyashcontentis20%,the2hconsistencylossratesand28dcompressivestrengthsofrecycledmortarswith0.55%,0.65%and0.75%polycarboxylatewaterreducerare20.18%,17.67%,14.89%and18.1MPa,19.2MPaand20.5MParespectively,andaresuperiortothosewiththesameamountofmelamine-typeandnaphthalene-typewaterreducer.
陶李尧,殷险峰,罗健林,等.不同减水剂对再生砂浆流变及力学性能的影响[J].混凝土与水泥制品,2020(2):94-97.
TAO L Y,YIN X F,LUO J L,et al.Effect of Different Water-reducer on the Rheology and Mechanical Properties of Recycled Mortar[J].China Concrete and Cement Products,2020(2):94-97
TAO L Y,YIN X F,LUO J L,et al.Effect of Different Water-reducer on the Rheology and Mechanical Properties of Recycled Mortar[J].China Concrete and Cement Products,2020(2):94-97
