信阳师范学院学报（自然科学版）2017，Vol.30Issue(3)：484-488,5.DOI:10.3969/j.issn.1003-0972.2017.03.029
碱矿渣混凝土基本力学性能试验研究
Experimental Study on Basic Mechanical Properties of Alkali-activated Slag Concrete
摘要
Abstract
Take water glass and NaOH as activator, slag powder as cementitious material, calcium oxide and calcium sulphoaluminate expansive agent as admixture to prepare basic mechanical properties specimens of alkali-activated slag concrete(AASC).The basic mechanical properties of cube compressive strength, splitting tensile strength, flexural tensile strength, elastic modulus and Poisson's ratio were studied.The test results showed that AASC had the good early strength performance, SEM microscopic analysis showed that there was no obvious interfacial transition zone between aggregate and slurry interface.Add expansive agent to AASC can improve its early(1d, 3d)strength, and decrease its later (28 d) strength.The tensile toughness of AASC was better than that of ordinary portland concrete with the same strength grade, the flexural strength, elastic modulus and Poisson's ratio were equal to the ordinary portland concrete.Add expansive agent to AASC can greatly reduce the flexural tensile strength of AASC.The result calculated by elastic modulus suggested that the formula mostly close to the experimental value is the Chinese norms.关键词
碱矿渣混凝土/膨胀剂/基本力学性能/界面过渡区Key words
AASC/expansive agent/basic mechanical properties/interfacial transition zone分类
建筑与水利引用本文复制引用
费建刚,袁晓辉,申晓伟,陈秀云..碱矿渣混凝土基本力学性能试验研究[J].信阳师范学院学报（自然科学版）,2017,30(3):484-488,5.基金项目
河南省科技攻关项目(172102210453) （172102210453）
河南省高等学校重点科研项目(16B560009,17A560009) （16B560009,17A560009）
信阳师范学院青年科研基金项目(NO.42) （NO.42）
