一种含有吸水树脂和膨胀珍珠岩的新型吸水垫层  

New type of water-absorbing layer containing super absorbent polymer and expanded perlite

作　　者：王琦 李志鹏[2] 王磊 刘竹辉 苏群勇 卢黄忠 钟舜杰 沈平邦 WANG Qi;LI Zhipeng;WANG Lei;LIU Zhuhui;SU Qunyong;LU Huangzhong;ZHONG Shunjie;SHEN Pingbang(Cangzhou Qugang Expressway Construction Co.,Ltd.,Cangzhou 061000,China;School of Civil Engineering,Tianjin University,Tianjin 300072,China;Zhangzhou Municipal Engineering Center,Zhangzhou 363100,China;Fujian Zhanglong Construction Investment Group Co.,Ltd.,Zhangzhou 363100,China;Tianjin Academy of Building Sciences Co.,Ltd.,Tianjin 300072,China)

机构地区：[1]沧州曲港高速公路建设有限责任公司,河北沧州061000 [2]天津大学建筑工程学院,天津300072 [3]漳州市市政工程中心,福建漳州363100 [4]福建漳龙建投集团有限公司,福建漳州363100 [5]天津市建筑科学研究院有限公司,天津300072

出　　处：《混凝土》2025年第2期145-148,共4页Concrete

基　　金：天津市自然科学基金(21JCZDJC00410,22JCYBJC00620)。

摘　　要：开发了一种基于吸水树脂和膨胀珍珠岩的吸水垫层,旨在为海绵城市的应用提供一种新型储水材料。该吸水垫层具备出色的吸水性能和一定的力学性能,可实现高效的水资源利用和雨水的有效处理。通过TOPSIS多目标优化,最终得出了一种吸水能力和强度平衡的配合比。试验结果表明,0.25%的吸水树脂和15%的膨胀珍珠岩能够较好实现吸水垫层的制备,其抗折强度约为3.16 MPa,抗压强度约为9.16 MPa,吸水率能够达到33.16%,约为普通净浆的13.8倍。吸水树脂能够较好的调控内部水化速率,膨胀珍珠岩由于自身孔隙的关系能够有效的提高吸水性能。It develops a water-absorbing layer based on super absorbent polymerand expanded perlite,aiming to provide a new type of water storage material for sponge city applications.This water-absorbing layer exhibits excellent water absorption performance and certain mechanical properties,enabling efficient water resource utilization and effective rainwater management.Through TOPSIS multi-objective optimization,a mix ratio balancing water absorption capacity and strength was derived.Experimental results show that a mix with 0.25%SAP and 15%expanded perlite can effectively prepare the water-absorbing layer,with a flexural strength of approximately 3.16 MPa,compressive strength of about 9.16 MPa,and water absorption rate reaching 33.16%,approximately 13.8 times that of ordinary paste.SAP can effectively regulate the internal hydration rate,while expanded perlite,due to its porosity,significantly enhances water absorption performance.

关 键 词：吸水树脂 膨胀珍珠岩 海绵城市 TOPSIS法 

分 类 号：TU528.041[建筑科学—建筑技术科学]