摘要
为研究纳米SiO_(2)对道路拆除再生集料力学性能的改良效果,采用无侧限抗压试验和三轴试验分别对再生集料和掺入4‰纳米SiO_(2)的再生集料进行研究。试验结果表明:掺入4‰纳米SiO_(2)可以有效提升再生集料的无侧限抗压强度、抗剪强度和抵抗变形的能力;纳米SiO_(2)主要通过提升内摩擦角来达到增强再生集料抗剪强度的作用。研究结果表明掺入4‰的纳米SiO_(2)可以有效增强再生集料的力学性能。
In order to study the improvement effect of nano-SiO_(2) on the mechanical properties of recycled aggregate for road demolition, unconfined compression test and triaxial test were used to study the recycled aggregate and the recycled aggregate mixed with 4 ‰ nano-SiO_(2) respectively. The test results show that the unconfined compressive strength, shear strength and deformation resistance of recycled aggregate can be effectively improved by adding 4 ‰ nano SiO_(2) Nano-SiO_(2) can enhance the shear strength of recycled aggregate mainly by increasing the internal friction angle. The results show that the mechanical properties of recycled aggregate can be effectively enhanced by adding 4 ‰ nano SiO_(2).
作者
宋科
李犇
赵海燕
孙淦
Song Ke;Li Bert;Zhao Haiyan;Sun Gan(Shaoxing City Investment Renewable Resources Co.,Ltd,Shaoxing,Zhejiang 312000,China;Shaoxing University,Shaoxing,Zhejiang 312000,China;Shaoxing City Investment Group Limited,Shaoxing,Zhejiang 312000,China)
出处
《科技通报》
2022年第6期73-77,共5页
Bulletin of Science and Technology
基金
浙江省建设科研项目(2020K152)。
