摘要
通过试验研究了硅灰、P·O 52.5级水泥对透水混凝土抗压和抗折强度的影响;根据透水路面透水系数长期原位监测试验揭示了透水路面堵塞规律,并对不同堵塞程度路面进行渗透能力恢复研究。结果表明:透水混凝土制备过程中掺入硅灰和P·O 52.5级水泥的混合物,透水混凝土抗压和抗折强度的改善效果最好;透水路面运营前期,渗透能力衰退速度最快;高压水冲洗和真空吸尘相结合的透水路面养护方式可取得更好的渗透能力恢复效果。
The influence of silica fume and cement with grade P·O 52.5 on the compressive and flexural strength of pervious concrete was studied by experiments.According to the long-term monitoring test,the clogging characteristics were revealed,and the permeability recovery of pervious concrete pavement with different clogging degree was studied.The results show that the compressive and flexural strength of pervious concrete can be best improved when silica fume and cement with grade P·O 52.5 are mixed in the preparation process of pervious concrete,the permeability coefficient of pervious concrete decreases fastest in the early stage of pervious pavement operation,the pervious pavement permeability can be effectively restored by combining the methods of high-pressure water washing and vacuum cleaning.
作者
明瑞平
谢艾利
张亚杰
张炯
MING Ruiping;XIE Aili;ZHANG Yajie;ZHANG Jiong(Central and Southern China Municipal Engineering Design&Research Institute Co.,Ltd.,Wuhan 430014,China;Civil Engineering College,Shandong University,Jinan 250061,China)
出处
《混凝土》
CAS
北大核心
2022年第4期147-149,153,共4页
Concrete
基金
国家自然科学基金(51308324)
山东省重点研发计划项目(2017GSF22101)。
关键词
透水混凝土
渗透能力
堵塞
路面养护
pervious concrete
permeability
clogging
pavement maintenance
