低温汽油环境下混凝土抗渗特性试验研究
Research on Concrete Impermeability in Cryogenic Gasoline Environment
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- DOI:
- 作者:
- 黄达海, 朱雪峰
HUANG Da-hai, ZHU Xue-feng
- 作者单位:
- 北京航空航天大学土木工程系, 北京 100083
Department of Civil Engineering, Beijing University of Aeronautics & Astronautics, Beijing 100083, China
- 关键词:
- 混凝土;抗渗性;低温;汽油
impermeability;concrete;cryogenic;gasoline
- 摘要:
- 为了使混凝土油罐能在战略石油储备中发挥作用,开展了低温环境下汽油对混凝土渗透特性的试验研究。在低温压力容器内,分别对掺粉煤灰掺合料和高效减水剂、引气剂、UEA膨胀剂等外加剂混凝土进行低温抗渗汽油试验。结果表明,汽油对混凝土的渗透性很强,添加以上各种掺合料和外加剂,无助于改善混凝土的抗渗汽油特性;地下混凝土油罐储备汽油,须采用特殊防渗措施。
In order to make the concrete oil tanks be used in strategic oil reserves,the research on concrete impermeability in the gasoline cryogenic environment has been done.The research on concrete permeability to gasoline containing the admixtures of fly ash,superplasticizer,air-entraining agent or UEA expansive agent has been conducted in a cryogenic pressure vessel.The result indicates that the concrete permeability to gasoline is very high and no improvement is expected using the above admixtures. Special impervious measure ought to be adopted for underground concrete oil tanks to reserve gasoline.2008,1(1): 1-4 收稿日期：2007-7-12分类号：TU528基金项目：教育部 985 学科建设基金资助项目(BHB985-1-4)作者简介：黄达海(1964-),男,湖北荆州人,教授,清华大学博士(后),主要从事混凝土结构温度应力、高坝施工过程仿真等研究工作.参考文献：
[1] 孙曼灵.环氧树脂应用原理与技术[M].北京:机械工业出版社,2002.
[2] 曹芳.溶液气压法测试混凝土抗渗性能阱武汉理工大学申请工程硕士学位论文,2003.
[3] GBJ82-1985,混凝土长期耐久性试验方法[S]
.[4] 兰州石油机械研究所.压力容器设计知识[M].北京:化学工业出版社,2005.
[5] 李广信.高等土力学[M].北京:清华大学出版社,2004.
[6] 陈建奎.混凝土外加剂原理与应用[M].北京:中国计划出版社,2004.
[7] B.k Nyame.Permeability of normal and lightweight mortars[J].Magazine of Concrete Research,37(130):44-48.
[8] Berry Malhotra.Coalay ash in concrete[D].5th CANMET/ACI in-temational conference on fiy ash,slag,Silica Fume and Other Natu-ral Pozzolans,Milwaukee,1995.2:153.
[9] R.K.Dhir.Near surface characteristics of concrete[J].intrinsic per-meanbility.Magazine of Concrete Research,1989,41(147):87-97.
[10] 赵铁军.混凝土渗透性[M].北京:科学出版社,2006.