| 掺纳米SiO2、粉煤灰高性能混凝土的力学性能试验研究 |
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| 引用本文： | 陈燕飞,孟云芳,李铁军.掺纳米SiO2、粉煤灰高性能混凝土的力学性能试验研究[J].宁夏工程技术,2011,10(3):229-231. |
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| 作者姓名： | 陈燕飞 孟云芳 李铁军 |
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| 作者单位： | 1. 银川市建设工程质量监督站,宁夏银川,750021
2. 宁夏大学土木与水利工程学院,宁夏银川,750021 |
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| 摘 要： | 为了研究纳米SiO2对高性能混凝土工作性和力学性能的影响,将纳米SiO2掺入到高性能混凝土中,通过对基准混凝土,粉煤灰混凝土,纳米SiO2、粉煤灰混凝土进行对比试验,研究纳米SiO2对高性能混凝土的坍落度、抗压强度、劈裂抗拉强度的影响.结果表明:将纳米SiO2掺入到混凝土中,其抗压强度、劈裂抗拉强度、拉压比和工作性都有所提高;纳米SiO2和矿物掺合料具有叠加效应,对混凝土早期强度特别是7 d的强度具有明显的降脆增韧作用.
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| 关 键 词： | 纳米SiO2 粉煤灰 高性能混凝土 力学性能 |
Experimental study on mechanical properties of high performance concrete with nano-SiO_2 |
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| CHEN Yanfei,MENG Yunfang,LI Tiejun.Experimental study on mechanical properties of high performance concrete with nano-SiO_2[J].Ningxia Engineering Technology,2011,10(3):229-231. |
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| Authors: | CHEN Yanfei MENG Yunfang LI Tiejun |
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| Affiliation: | CHEN Yanfei1,MENG Yunfang2,3,LI Tiejun2(1.The Quality Control Administration on Project of Constration of Yinchua,Yinchuan 750021,China,2.College of Civil and Hydraulic Engineering,Ningxia University,3.Engineer Research Center Funded by Ministry of Education for Effective Utilization of Water Resource of Modern Agriculture in Droughty Area,China) |
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| Abstract: | In order to study the nano-SiO2 of high-performance concrete workability and the mechanics properties of nano-SiO2,adding the nano-SiO2 to the high performance concrete,through the contrast test of basic concrete,fly ash concrete,nano-SiO2,fly ash concrete,so study the effect of nano-SiO2 of high-performance concrete slump,compressive strength,tensile strength of splitting.The results show that: adding to the nano-SiO2 to the concrete materials which have mproved the compressive strength,tensile strength,fr... |
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| Keywords: | nano-SiO2 fly ash high-performance concrete mechanical properties |
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