宁夏工程技术2024，Vol.23Issue(2)：154-159,6.
成型压力对透水混凝土抗压强度和孔隙结构的影响研究
Effect of Forming Pressure on Compressive Strength and Pore Structure of Pervious Concrete
摘要
Abstract
In this study,the mechanical properties and pore structure of pervious concrete under different forming pressures were investigated using image analysis.Pore characteristics such as the number of pores,equivalent pore diameter,and porosity were analyzed.The results show that as forming pressure increases,the porosity of pervious concrete decreases,compressive strength increases,the number of pores increases,equivalent pore diameter decreases,and pore distribution becomes more uniform.The permeability coefficient,primarily determined by the minimum permeability layer of the pervious concrete,is positively correlated with porosity.Comprehensive analysis shows that the pervious concrete formed under a pressure of 3 MPa exhibits optimal performance,with uniform pore distribution,a porosity of 21.23%,a permeability coefficient of 3.87 mm/s,and a compressive strength of 22.96 MPa.关键词
图像分析/成型压力/孔隙结构/透水混凝土Key words
image analysis/forming pressure/pore structure/pervious concrete分类
土木建筑引用本文复制引用
薛成广,张东生,杨秋宁..成型压力对透水混凝土抗压强度和孔隙结构的影响研究[J].宁夏工程技术,2024,23(2):154-159,6.基金项目
宁夏回族自治区重点研发项目(2022BDE93016 （）
2021BEG02014) （）
银川市科技计划(2022ZDGX17) （2022ZDGX17）
