透水混凝土骨料挂浆厚度影响因素研究  

Research on Effects Factors of Hanging Slurry Thickness of Aggregate of Previous Concrete

作　　者：刘远祥[1] 张磊蕾[2] 满丽莹[1] 田寅[1] 骆静静[1] 

机构地区：[1]苏州混凝土水泥制品研究院有限公司江苏省高耐久混凝土工程技术研究中心,215004 [2]中国建筑材料科学研究总院,北京100024

出　　处：《混凝土与水泥制品》2018年第11期27-29,共3页China Concrete and Cement Products

基　　金：国家重点研发计划课题(2016YFC0701001);江苏省住建厅科技计划项目(2015JH09);苏州市民生科技计计划项目(SS201826)

摘　　要：基于现有的透水混凝土模型,提出了透水混凝土骨料挂浆厚度试验和计算方法。同时研究了骨料粒径、水灰比、硅灰掺量和胶粉掺量对骨料表面挂浆厚度的影响。试验结果表明,骨料粒径对骨料挂浆厚度影响较小;随着水灰比的增大,掺入硅灰的净浆挂浆厚度明显减小,掺入胶粉的净浆挂浆厚度基本不变;随着硅灰掺量的增加,骨料挂浆厚度随之增大,但增长速率有所减小;随着胶粉掺量的增加,骨料挂浆厚度先增大后减小。Based on the existing pervious concrete model,the test and calculation method of hanging slurry thickness of aggregate of pervious concrete is proposed. The effect of different aggregate size,W/C, different silica fume and redispersible polymer powder dosages on hanging slurry thickness of aggregate surface is investigated. The results show that the aggregate size has little effect on the hanging slurry thickness. With the increase of W/C, the thickness of cement slurry with silica fume is significantly reduced, the thickness of cement slurry with redispersible polymer powder is not variable. With the increase of silica fume dosage,the thickness of cement slurry is gradually increasing. With the increase of redispersible polymer powder, the thickness of cement slurry first increases and then decreases.

关 键 词：透水混凝土 水泥净浆 挂浆厚度 硅灰 可再分散性乳胶粉 骨料 

分 类 号：TU528[建筑科学—建筑技术科学]