|本期目录/Table of Contents|

[1]荀永宁,冯泽慧,巫广义,等.纳米SiO2与粉煤灰的增强效应对透水混凝土性能的影响[J].南京工业大学学报(自然科学版),2019,41(04):450-455.[doi:10.3969/j.issn.1671-7627.2019.04.009]
 XUN Yongning,FENG Zehui,WU Guangyi,et al.Influence of enhanced effect of nano-silica and fly ash on properties of pervious concrete[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2019,41(04):450-455.[doi:10.3969/j.issn.1671-7627.2019.04.009]
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纳米SiO2与粉煤灰的增强效应对透水混凝土性能的影响()
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《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
41
期数:
2019年04期
页码:
450-455
栏目:
出版日期:
2019-07-24

文章信息/Info

Title:
Influence of enhanced effect of nano-silica and fly ash on properties of pervious concrete
文章编号:
1671-7627(2019)04-0450-06
作者:
荀永宁1冯泽慧1巫广义2王曙光2
1.江苏博森建筑设计有限公司,江苏 无锡 214072; 2.南京工业大学 土木工程学院,江苏 南京 211800
Author(s):
XUN Yongning1FENG Zehui1WU Guangyi2WANG Shuguang2
1. Jiangsu Bosen Archtectural Design Co. Ltd., Wuxi 214072, China; 2. College of Civil Engineering, Nanjing Tech University, Nanjing 211800, China
关键词:
透水混凝土 纳米SiO2 粉煤灰 强度 渗透系数
Keywords:
permeable concrete nano-silica fly ash strength permeability coefficient
分类号:
TU528
DOI:
10.3969/j.issn.1671-7627.2019.04.009
文献标志码:
A
摘要:
在基准透水混凝土配合比的基础上,研究复掺纳米SiO2和粉煤灰对透水混凝土性能的影响。通过抗压、抗折、渗透系数、孔隙率等实验对比两种掺和料对透水混凝土力学性能和渗透系数的影响。结果表明:单掺纳米SiO2对透水混凝土的抗压和抗折强度均有提升,对渗透系数和孔隙率没有影响; 单掺粉煤灰对透水混凝土的抗压和抗折强度呈现先增大后减小的趋势,渗透系数和孔隙率小幅度的下降; 双掺纳米SiO2与粉煤灰对透水混凝土性能起叠加效应。在不影响渗透系数前提下,当纳米SiO2掺量为5%,粉煤灰掺量为20%时,透水混凝土抗压强度最高。
Abstract:
On the basis of the proportion of pervious concrete, the influence of composite nano-silica and fly ash on the performance of pervious concrete was considered. The effects of two admixtures on mechanical properties and permeability coefficient of pervious concrete were investigated by compressive, flexural, permeability and porosity tests. Results showed that compressive strength and bending strength of single doped nano-silica on the pervious concrete increased but had no effect on the permeability coefficient and porosity; compressive strength and bending strength of single doped fly ash on the pervious concrete increased first and then decreased but the permeability coefficient and porosity decreased. Double doped nano-silica and fly ash had superimposition effect on the properties of pervious concrete. Without affecting the permeability coefficient, compressive strength of pervious concrete attained maximum when the premise of nano-silica content was 5%, and the amount of fly ash was 20%.

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备注/Memo

备注/Memo:
收稿日期:2017-08-26
基金项目:国家自然科学基金(51308285); 江苏省自然科学基金(BK20130943)
作者简介:荀永宁(1970—),男,高级工程师,E-mail: xyn9981@sina.com; 王曙光(联系人),教授,E-mail: wsg@njtech.edu.cn.
引用本文:荀永宁, 冯泽慧, 巫广义,等.纳米SiO2与粉煤灰的增强效应对透水混凝土性能的影响[J].南京工业大学学报(自然科学版),2019,41(4):450-455..
更新日期/Last Update: 2019-07-20