Experimental Study on Frost Resistance of Nano-silicon Oxide-Rubber Recycled Concrete
To study the frost resistance of nano-silicon oxide-rubber recycled concrete,this paper prepares the recycled concrete,with the substitution rate of recycled coarse aggregate and recycled fine aggregate of 30%,that of natural river sand by rubber powder of 0,1%,3%,5%,etc.and that of cement by nano S...
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| Main Author: | |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Pearl River
2021-01-01
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| Series: | Renmin Zhujiang |
| Subjects: | |
| Online Access: | http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2021.04.012 |
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| Summary: | To study the frost resistance of nano-silicon oxide-rubber recycled concrete,this paper prepares the recycled concrete,with the substitution rate of recycled coarse aggregate and recycled fine aggregate of 30%,that of natural river sand by rubber powder of 0,1%,3%,5%,etc.and that of cement by nano SiO<sub>2</sub> of 0%,1.5% and 3.0% respectively,and conducts the freeze-thaw cycle test of nano-silicon oxide and rubber powder recycled concrete with different content.The experimental results show that:After addition of rubber powder and nano-SiO<sub>2</sub>,the frost resistance of recycled concrete is improved.As the freeze-thaw cycles reach 50,and the content of rubber powder and nano-SiO<sub>2</sub> is 5% and 3% respectively,the improvement on the frost resistance of recycled concrete is the best,and the strength loss rate is 45.5% lower than that of ordinary concrete. |
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| ISSN: | 1001-9235 |