摘要
能量桩的主要作用是承载和地源热泵,如何在确保不影响承载力的前提下提高能量桩换热效率。在混凝土中掺入不同体积率的钢纤维,测试混凝土的抗压能力和导热系数,研究钢纤维对混凝土性能的影响。试验结果表明,钢纤维的掺入对混凝土的抗压强度以及导热系数都有提升,对抗压强度的提升为13%~30%,对导热性能的提升为4%~25%,钢纤维掺入量为0.6%时为能量桩的最优配合比。
The main function of energy pile is bearing and source heat pump,how to improve the heat exchange efficiency of energy pile without affecting the bearing capacity.Add steel fibers with different volume rates to concrete,test the pressure resistance and thermal conductivity of concrete,and reveal the effect of steel fiber on concrete performance.The results show that the pressure resistance and thermal conductivity of the steel fiber splots have been improved,the resistance to pressure strength is 13%to 30%,and the heat conductivity is increased by 4%to 25%.When steel fiber is 0.6%,energy pile can achieved the optimum mixing ratio.
作者
常虹
沈鹏
谷复光
CHANG Hong;SHEN Peng;GU Fuguang(School of Geormetrics and Prospecting Engineering,Jilin Jianzhu University,Changchun 130118,China)
出处
《混凝土》
CAS
北大核心
2020年第4期67-69,共3页
Concrete
基金
吉林省科技发展计划项目(20190303022SF)
吉林省教育厅“十三五”科研项目(JJKH20180600KJ,JJKH20180604KJ)。
关键词
能量桩
钢纤维混凝土
抗压强度
导热性
energy pile
steel fiber concrete
compressive strength
thermal conductivity
