摘要
为探究在掺粉煤灰情况下,养护制度、水胶比、钢纤维掺量对活性粉末混凝土(Reactive Powder Concrete, RPC)基本力学性能的影响规律,文中完成了78个100 mm立方体和26个100 mm×100 mm×300 mm棱柱体掺粉煤灰RPC试件的单轴受压试验,基于试验结果考察了RPC立方体抗压强度与棱柱体抗压强度之间的关系,建立掺粉煤灰RPC弹性模量、横向变形系数、峰值应变、峰值应力等基本力学参数的预测模型。试验结果表明,粉煤灰的加入明显提升了RPC的基本力学性能。
To obtain the rule of influence of curing system,water-binder ratio and steel fiber content on mechanical properties and failure forms of RPC doped with fly ash,uniaxial compression mechanical properties tests of 78 sets of 100 mm cube and 26 sets of 100 mm×100 mm×300 mm prismatic fly ash doped RPC specimens are conducted in this paper.Based on the experimental results,the relationship between the compressive strength of RPC cube and the compressive strength of prismatic body are investigated,and the mathematical description of the basic mechani⁃cal parameters such as Young modulus,transverse deformation coefficient,peak strain,and peak stress of fly ash doped RPC is established.The results show that the addition of fly ash significantly improves the mechanical proper⁃ties of RPC.
作者
侯昊
王震宇
张辰熙
HOU Hao;WANG Zhenyu;ZHANG Chenxi(School of Civil Engineering,Yantai University,Yantai 264005,China;School of Transportation Science and Engineering,Harbin Institute of Technology,Harbin 150090,China;Heilongjiang Province Academy of Cold Area Building Research,Harbin 150080,China)
出处
《低温建筑技术》
2024年第3期38-42,共5页
Low Temperature Architecture Technology
关键词
活性粉末混凝土
粉煤灰
水胶比
钢纤维掺量
RPC
fly ash
water-binder ratio
steel fiber content on mechanical
