摘要
文中主要研究了针片状粗骨料对C30、C60两种强度等级混凝土工作性与力学性能的影响,试验结果表明:粗骨料中针片状颗粒含量的变化,对低强度等级的C30混凝土、高强度等级的C60混凝土的工作性均存在着一定的影响,对混凝土抗压强度也有较大程度的降低,尤其是高强度等级的混凝土,当针片状颗粒含量超过15%之后,负面影响更为明显。
This paper mainly studies the effects of needle flake on C30 and C60 grade coarse aggregate strength in terms of workability and mechanical properties.The results show that the changes of coarse aggregate and the needle flake particle concentration have the effect on the working performance in low grade concrete of C30 and high strength grade concrete of C60,moreover,such changes lead to reduce the compressive strength of concrete,especially high strength grade of concrete.Finally,the negative effect is more apparent,when needle flake particle content more than 15%.
作者
韩宏伟
HAN Hongwei(Heilongjiang Institute of Urban-Rural Development,Harbin 150070,China)
出处
《低温建筑技术》
2020年第7期53-55,共3页
Low Temperature Architecture Technology
关键词
混凝土
粗骨料
针片状
工作性
concrete
coarse aggregate
needle flake
performance
