| 调节混凝土内部相对湿度的释水因子技术及其应用 |
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| 引用本文： | 胡曙光,何永佳,吕林女. 调节混凝土内部相对湿度的释水因子技术及其应用[J]. 铁道科学与工程学报, 2006, 3(2): 11-14 |
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| 作者姓名： | 胡曙光 何永佳 吕林女 |
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| 作者单位： | 1. 武汉理工大学,硅酸盐材料工程教育部重点实验室,湖北,武汉,430070
2. 武汉理工大学,工程结构与力学系,湖北,武汉,430070 |
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| 基金项目： | 国家自然科学基金;硅酸盐材料工程教育部重点实验室基金 |
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| 摘 要： | 提出调节混凝土内部相对湿度的释水因子技术,研究了释水因子对密闭环境下高强微膨胀混凝土内部相对湿度、体积变形以及抗压强度的影响规律。研究结果表明,研制的释水因子可以有效调节钢管高强微膨胀混凝土内部相对湿度,改善其体积变形行为;掺加较大量的释水因子对于高强微膨胀钢管混凝土抗压强度会产生一定影响。
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| 关 键 词： | 钢管高强膨胀混凝土 体积变形 释水因子 相对湿度 |
| 文章编号： | 1672-7029(2006)02-0011-04 |
| 修稿时间： | 2006-02-28 |
Water-releasing factor technology to modify the internal relative humidity of concrete and its application |
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| HU Shu-guang,HE Yong-jia,LU Lin-nu. Water-releasing factor technology to modify the internal relative humidity of concrete and its application[J]. Journal of Railway Science and Engineering, 2006, 3(2): 11-14 |
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| Authors: | HU Shu-guang HE Yong-jia LU Lin-nu |
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| Abstract: | Water-releasing factor technology to modify the internal relative humidity of concrete is proposed.Effects of water-releasing factor on the internal relative humidity,volume deformation,and compressive strength of high strength micro-expansive concrete in the sealed curing condition were investigated.Results indicate that the water-releasing factor prepared could modify the internal relative humidity,and it was beneficial for reducing the autogenous shrinkage and keeping the hydration of expansive agent and unhydrated cement.Furthermore,high volume-ratio replacement of water-releasing factor might have negative effect on the compressive strength of concrete,so it should be restricted in an appropriate range. |
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| Keywords: | high-strength micro-expansive concrete filled steel tube volume deformation water-releasing factor relative humidity |
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