SAP内养护水泥稳定碎石抗干缩性能研究进展  

Research Progress on Anti-dry and Shrinkage Properties of Cement Stabilized Macadam Internally Cured by SAP

作　　者：靳文源 韩得军 JIN Wenyuan;HAN Dejun(Taiyuan National and Provincial Road Fenhe Reservoir Section Construction Management Co.,Ltd,Taiyuan,Shanxi 030300,China;School of Materials Science and Engineering,Chang'an University,Xi'an,Shaanxi 710018)

机构地区：[1]太原国省道汾河水库段建设管理有限公司,山西太原030300 [2]长安大学材料科学与工程学院,陕西西安710018

出　　处：《山西交通科技》2024年第6期23-26,共4页Shanxi Science & Technology of Transportation

基　　金：山西交控集团科技项目(2022-JKKJ-12)。

摘　　要：高吸水树脂(Super Absorbent Polymer,SAP)因其优异的吸-保-释水特性已发展成为水泥基材料理想的内养护剂之一。为了明析SAP在半刚性基层中的内养护效果,介绍了SAP的不同类型,总结了SAP的吸-释水机理,阐述了SAP粒径、掺量、类型和额外引水量对水泥稳定碎石抗干缩性能的影响;展望了SAP在水泥稳定碎石半刚性基层应用的研究方向,为SAP在水泥稳定碎石半刚性基层中的应用提供理论指导与技术借鉴。Super absorbent polymer(SAP)has become an ideal internal curing agent of cementitious materials because of its excellent water absorption-retention-release behavior.To clarify the internal curing effect of SAP in semi-rigid bases,this paper introduced SAP's classifications,summarized SAP's water absorption-release mechanism,and indicated the influences of SAP's particle size,content,type,and additional water diversion on the anti-dry and shrinkage properties of cement stabilized macadams.Future research directions for applying SAP in cement stabilized macadam semi-rigid bases were prospected,which provided theoretical guidance and technical references for the applications.

关 键 词：高吸水树脂 SAP内养护 半刚性基层 干缩性能 

分 类 号：U414.15[交通运输工程—道路与铁道工程]