Adsorption properties of polycarboxylate ether-based superplasticizer on cement particles and their resultant dispersion

作     者：Jinyoung YOON Byoung Il CHOI Jae Hong KIM Jinyoung YOON;Byoung Il CHOI;Jae Hong KIM

作者机构：Department of Structural Engineering ResearchKorea Institute of Civil Engineering and Building Technology(KICT)Goyang 10223Republic of Korea System Safety Research DepartmentKorea Shipbuilding and Offshore EngineeringSeongnam 13591Republic of Korea Department of Civil and Environmental EngineeringKorea Advanced Institute of Science and TechnologyDaejeon 34141Republic of Korea 

出 版 物：《Frontiers of Structural and Civil Engineering》 (结构与土木工程前沿（英文版）)

年 卷 期：2022年第16卷第4期

页      面：506-514页

核心收录：

学科分类：1305[艺术学-设计学（可授艺术学、工学学位）] 081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0813[工学-建筑学] 0703[理学-化学] 0814[工学-土木工程] 

基　　金：supported by the National Research Foundation of Republic of Korea(NRF)funded by the Ministry of Education(NRF-2018R1D1A1B07047321) 

主　　题：adsorption polycarboxylate superplasticizer rheology dispersion 

摘      要：The cement dispersion performance of a polycarboxylate(PCE)-based superplasticizer is highly related to their adsorption behaviors as a function of *** study evaluated effects of PCEs on rheological properties of cementitious ***,characteristics of PCEs were characterized via permeation chromatography(GPC)and Fourier-transform infrared spectrometry(FT-IR).The adsorption behavior of single and blended PCEs on cementitious composites was identified using total organic carbon analyzer(TOC).Based on the measurement of PCE adsorption,the changes of rheological properties of cementitious materials as well as the number of dispersed cement particles were characterized using a rheometer and laser spectroscopy,*** experimental results support the systematic mechanism of PCE adsorption,cement dispersion,and the decrease in viscosity of cementitious materials.