钢-玄武岩混杂纤维道面混凝土力学性能试验研究  

Experimental Study on Mechanical Properties of Steel-basalt Hybrid Fibers Reinforced Pavement Concrete

作　　者：吴永根[1] 陈磊[1] 李文哲[1] 

机构地区：[1]空军工程大学机场建筑工程系,西安710038

出　　处：《科学技术与工程》2015年第12期232-238,共7页Science Technology and Engineering

摘　　要：结合道面混凝土的使用特点及要求,为提高道面混凝土的基本力学性能,对钢-玄武岩混杂纤维道面混凝土(steel-basalt hybrid fibers reinforced pavement concrete,简称SBHFRPC)的工作性及基本力学性能进行了比较系统的试验研究。试验通过对比分析研究了钢纤维以0.9%、1.2%、1.5%、1.8%四种体积掺率和玄武岩纤维以0.05%、0.10%、0.15%三种体积掺率相互混杂对机场道面混凝土抗折、抗压强度性能的影响规律,同时,对钢-玄武岩混杂纤维机场道面混凝土的基本力学增强机理进行了一定的分析。试验结果表明:混杂纤维对道面混凝土有较好的力学增强性能,在钢纤维掺量为1.5%,玄武岩纤维掺量为0.10%时达到最佳。According to the applied characteristics and requests for utilization of pavement concrete, in order to improve its basic mechanical properties, a systematical and comprehensive experimental study about the performance and basic mechanical properties of SBHFRPC （Steel-Basalt Hybrid Fibers Reinforced Pavement Concrete） were done. It analyzed and compared the influencing rules that these four 0. 9% ,1.2% ,1.5% ,1.8% volume fraction mixing amount of steel fiber, which are mixed with three 0. 05% ,0. 10% ,0. 15% volume fraction mixing amount of basalt fiber, affected the flexural strength and compressive strength properties of airport pavement concrete. Beside, the reason why SBHF has effect on mechanical properties of airport concrete was also analyzed. The test result indicate that the hybrid fibers could sharply enhance the mechanical properties of pavement concrete. When the steel fiber content is 1.5% ,the basalt fiber content is 0. 10% to achieve the best.

关 键 词：钢-玄武岩混杂纤维 道面混凝土 工作性 基本力学性能 增强机理 

分 类 号：TU528.572[建筑科学—建筑技术科学]