无机纳米与有机纤维改性复材对透水混凝土耐久性影响研究  

Study on effect of inorganic nano and organic fiber modified composite on durability of pervious concrete

作　　者：张小平[1,2] 范乾松 甄东华 王民豪 李雨栋 ZHANG Xiaoping;FAN Gansong;ZHEN Donghua;WANG Minhao;LI Yudong(The Third Bureau of Metallurgical Geology Administration of China,Taiyuan 030000,China;Shanxi Metallurgical Geotechnical Engineering Investigation Co.,Ltd.,Taiyuan 030000,China)

机构地区：[1]中国冶金地质总局三局,山西太原030000 [2]山西冶金岩土工程勘察有限公司,山西太原030000

出　　处：《粘接》2023年第11期114-117,共4页Adhesion

摘　　要：为提高基坑施工安全,设计透水混凝土支护桩,研究无机纳米SiO_(2)材料和玄武岩纤维有机材料含量对透水混凝土耐久性的影响,采用5种不同掺量的纳米SiO_(2)和5种不同含量的玄武岩纤维进行实验。结果表明,当纳米SiO_(2)掺量为7%时,纳米SiO_(2)显著提高了透水混凝土抗碳化性;当纳米SiO_(2)掺量为7%时,添加适量的玄武岩纤维可提高透水混凝土的抗冻融性和抗裂性,且随着玄武岩纤维含量的增加,含有无机材料的纳米SiO_(2)透水混凝土的抗冻融性增加,抗裂性逐渐降低。In order to improve the safety of foundation pit construction,pervious concrete supporting pile was designed,and the influence of inorganic nano-SiO_(2) material and basalt fiber organic material content on the durability of pervious concrete was studied.The experiment was carried out with 5 different contents of nano-SiO_(2) and 5 different contents of basalt fiber.The results showed that when the content of nano-SiO_(2) was 7%,nano-SiO_(2) significantly improved the carbonization resistance of pervious concrete.When the content of nano-SiO_(2) was 7%,adding an appropriate amount of basalt fiber could improve the freeze-thaw resistance and crack resistance of pervious concrete,and with the increase of the content of basalt fiber,the freeze-thaw resistance of nano-SiO_(2) pervious concrete containing inorganic materials increases,while the crack resistance gradually decreased.

关 键 词：玄武岩纤维 纳米SiO_(2) 透水混凝土 基坑支护 

分 类 号：TQ327.3[化学工程—合成树脂塑料工业] TU502[建筑科学—建筑技术科学]