| 某水电站输水隧洞混凝土侵蚀原因初探 |
| |
| 引用本文： | 陈理达,王立华,李红彦.某水电站输水隧洞混凝土侵蚀原因初探[J].混凝土,2004(1):64-67. |
| |
| 作者姓名： | 陈理达 王立华 李红彦 |
| |
| 作者单位： | 广东省水利水电科学研究院,广东,广州,510610 |
| |
| 摘 要： | 在对某水电站被侵蚀混凝土详细勘查的基础上，对现场取样进行抗压强度试验、XRD、SEM、化学分析和水质分析，发现该工程中混凝土的腐蚀是侵蚀性二氧化碳CO2和碳酸氢根离子HCO^-3所引起，同时混凝土中水泥用量偏少、水灰比偏大减弱了混凝土对溶出型侵蚀的抵抗能力。
|
| 关 键 词： | 混凝土侵蚀 侵蚀性二氧化碳 碳酸氢根离子 水电站 输水隧洞 水工混凝土 抗压强度 |
| 文章编号： | 1002-3550(2004)01-0064-04 |
The investigation of cause of concrete erosion in the water conveyance tunnel of a hydraulic power station province |
| |
| CHEN Li-da,WANG Li-hua,LI Hong-yan.The investigation of cause of concrete erosion in the water conveyance tunnel of a hydraulic power station province[J].Concrete,2004(1):64-67. |
| |
| Authors: | CHEN Li-da WANG Li-hua LI Hong-yan |
| |
| Abstract: | On the basis of careful investigation of eroded concete in the water conveyance tunnel of a hydraulic power station in guangdong province,China,it was found out that the erosion of concrete has been caused by erosive carbon dioxide and bicarbonate ion in the water by the method of compressive strength testing,X-Rays diffraction,scanning electron microscope,chemical test of the concrete core and analysis of water quality.On the other hand,the larger water-cement ratio and the less cement content weakened the resistance of concrete of dissolution-type erosion. |
| |
| Keywords: | eroded concrete erosive carbon dioxide bicarbonate ion |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
