秸秆与粉煤灰复掺对混凝土性能的影响  

Effects of Combined Admixture of Straw and Fly Ash on the Properties of Concrete

作　　者：陈登 宋旭艳[1] 姜正平[1] 何智海 CHEN Deng;SONG Xu-yan;JIANG Zheng-ping;HE Zhi-hai(College of Civil Engineering,Suzhou University of Science and Technology,215011,China;College of Civil Engineering,Shaoxing University,312000,China)

机构地区：[1]苏州科技大学土木工程学院,215011 [2]绍兴文理学院土木工程学院,312000

出　　处：《混凝土与水泥制品》2020年第4期100-103,共4页China Concrete and Cement Products

基　　金：国家自然科学基金项目（51778003）;苏州市建筑节能科技支撑项目（苏住建科[2019]4号）;长江科学院开放基金项目（CKWV2019757/KY）

摘　　要：研究了不同种类、形态的秸秆和粉煤灰复掺对混凝土的工作性、力学性能和保温性能的影响。结果表明,秸秆会降低混凝土的坍落度、表观密度、强度和导热系数,而粉煤灰的掺入能够提高秸秆混凝土的坍落度,但降低其表观密度、强度和导热系数;掺秸秆粉混凝土的工作性、强度和保温性能优于掺秸秆条混凝土;三种秸秆中,掺油菜秸秆混凝土的工作性、强度和保温性能均优于小麦秸秆和玉米秸秆。The effects of different types and shapes of straw and fly ash on working performance,mechanical property and thermal performance of concrete were investigated.The results show that the slump,apparent densities,strength and thermal conductivity values of concrete decrease with the increase of the content of straw.The slump of concrete increases while the apparent densities,strength and thermal conductivity values decrease with the increase of the content of fly ash.The working performance,strength and thermal performance of concrete containing the straw powder are better than that of concrete containing the straw stripe.The working performance,strength and thermal performance of concrete containing rape straw are better than those of containing wheat straw or corn straw.

关 键 词：秸秆 粉煤灰 混凝土 性能 

分 类 号：TU528.45[建筑科学—建筑技术科学]