硅灰改性桥梁混凝土性能试验研究
Experimental Study on Performance of Bridge Concrete Modified by Silica Fume
秦智1
作者信息
- 1. 四川川交路桥有限责任公司,四川 广汉 618300
- 折叠
摘要
为研究不同掺量硅灰对改性桥梁混凝土力学性能和耐久性能的影响,文中主要对硅灰改性桥梁混凝土抗压、抗折性能及抗渗透性能进行试验研究.结果表明,硅灰掺量为12%时,混凝土的抗压强度和抗拉强度显著提升.在60d龄期下,混凝土抗压强度相对于对照组增加了19.1%,抗折强度增加了22.4%,相对渗透系数降低了38.4%.
Abstract
In order to study the effects of different dosage of wollastonite on the mechanical properties and durability of modified bridge con-crete,the compressive,flexural and permeability properties of modified bridge concrete were mainly studied.The results show that the com-pressive strength and tensile strength of concrete can be significantly improved when the dosage of wollastonite is 12%.At the age of 60 days,the compressive strength of concrete increased by 19.1%,the flexural strength increased by 22.4%,and the relative permeability coefficient decreased by 38.4%.
关键词
改性桥梁混凝土/渗透系数/抗压强度/抗折强度Key words
Modified bridge concrete/Permeability coefficient/Compressive strength/Flexural strength引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据