摘要
基于试验探究不同煤矸石细骨料取代率对混凝土抗压强度、抗拉强度、动弹性模量、抗碳化及抗冻性能影响,煤矸石细骨料取代率分别为0、10%、20%、40%、50%。研究发现,当煤矸石细骨料取代率低于20%时,混凝土抗压强度、抗拉强度、动弹性模量变化较小,而当取代率高于20%后,混凝土抗压强度、抗拉强度、动弹性模量开始下降。随着煤矸石细骨料取代率的增加,混凝土抗碳化性能逐渐降低,抗冻性能逐渐变差。
Experimental study on different coal gangue aggregate replacement rate on concrete compressive strength,tensile strength, elastic modulus, anti carbonization and frost resistance were conducted.The coal gangue aggregate replacement rate were 0,10%, 20%, 40% ,50% .The results show that,when the coal gangue aggregate replacement rate is less than 20%,the compressive strength, tensile strength, dynamic elastic modulus is small,but when the replacement rate is higher than 20%, the compressive strength, tensile strength, dynamic elastic modulus decreased.With the increase of the replacement ratio of coal gangue,the carbonation resistance of concrete decreases gradually and the frost resistance becomes worse.
作者
王亮
王志伟
WANG Liang1, WANG Zhiwei2(1.Shanxi Architectural Vocational College, Taiyuan 030006, China; 2.College of Architecture and Civil Engineering, Taiyuan University of Technology, Talyuan 030024, Chin)
出处
《混凝土》
CAS
北大核心
2018年第3期153-155,共3页
Concrete
基金
国家自然科学基金项目(51508370)
关键词
煤矸石细骨料
抗压强度
动弹性模量
耐久性能
gangue fine aggregate
compressive strength
dynamic modulus of elasticity
durability
