| 大掺量粉煤灰混凝土铺装强度性能的试验研究 |
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| 引用本文： | 毛明杰,杨秋宁. 大掺量粉煤灰混凝土铺装强度性能的试验研究[J]. 混凝土, 2011, 0(10). DOI: 10.3969/j.issn.1002-3550.2011.10.007 |
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| 作者姓名： | 毛明杰 杨秋宁 |
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| 作者单位： | 宁夏大学土木与水利工程学院,宁夏 银川 750021;宁夏节水灌溉与水资源调控工程技术中心,宁夏 银川 750021;旱区现代农业水资源高效利用教育部工程研究中心,宁夏 银川 750021 |
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| 基金项目： | 宁夏自然科学基金(NZ1044、NZ1047); 宁夏大学自然科学基金(ndzr09-3) |
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| 摘 要： | 高粉煤灰在道路路面铺装用混凝土中的掺入量,对水泥取代率30%以上的大掺量粉煤灰混凝土的强度性能指标进行了测评。重点对影响道路铺装设计的基础参数,混凝土抗弯强度进行了长期检测分析。结果表明:混凝土在掺入了粉煤灰后,28 d后期抗弯强度较普通混凝土增长显著,截止一年期测试结束后仍有增加趋势;其抗弯强度增长率随着粉煤灰掺入量的增大而提高,且高于同种配合条件下粉煤灰混凝土抗压强度的增长率;大掺量粉煤灰混凝土满足材料抗弯强度要求,适用于道路路面铺装工程。
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| 关 键 词： | 大掺量粉煤灰 铺装混凝土 抗弯强度 抗压强度 |
Strength characteristics of high volume fly ash concrete |
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| MAO Ming-jie,YANG Qiu-ning. Strength characteristics of high volume fly ash concrete[J]. Concrete, 2011, 0(10). DOI: 10.3969/j.issn.1002-3550.2011.10.007 |
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| Authors: | MAO Ming-jie YANG Qiu-ning |
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| Affiliation: | MAO Ming-jie 1,2,3,YANG Qiu-ning 1,3(1.School of Civil and Hydraulic Engineering,Ningxia University,Yinchuan 750021,China,2.Engineering Technique Research Center for Water Saving Irrigation and Water Resources in Ningxia,3.Engineering Research Center of Ministry of Education for Efficient Utilization of Modern Agriculture Water Resources in Arid,China ) |
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| Abstract: | Charecteristic of the strength of high volume fly ash concrete,describes long term increase of flexural strength of high volume fly ash concrete is expected.Short term strength is low due to late reaction of fly ash.The high volume fly ash concrete develops considerably the flexural strength higher than normal pavement concrete after the age of 91 days.The flexural strength increases more than the increase of compressive strength of long term.This results in use of the pavement concrete,since the strength o... |
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| Keywords: | high volume fly ash pavement concrete flexural strength compressive strength |
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