|
|
|
| REVIEW OF HIGH STRENGTH CONCRETE OF CHINESE RAILWAY FOR 50 YEARS AND PROSPECTS |
| SHI Ren-jun, ZHONG Mei-qin |
| China Academy of Railway Sciences |
|
|
|
|
Abstract This paper gives an introduction to the development of high strength concrete of Chinese railway for 50 years. The development experience can be divided into three stages .In the first stage,C40-55 dry and low plastic high strength concrete was made from common HSC and plastics doped compound agent (dehumidifying agent) HSC by adopting the techniques of bench vibration, side form vibration and bottom die vibration, for massive production of pre -stressed concrete tie , tube pile , post of catenary and bridge. In the second stage , the plastic HSC was made with NSF high efficient dehumidifying agent. The systematic experiments were done for ‘physical mechanics and structure performance of NSF-HSC according to the features of railway traffic , such as high speed,heavy haul,dynamic loading and safety. In the third stage, the ASF high efficient and PCE high efficient dehumidifying agents were produced and applied. This paper concludes that the PCE high efficient dehumidifying agent call meet the requirements of railway engineering and. is an ideal agent for high strength and high performance concrete for railway.
|
|
Received: 04 January 2005
|
|
|
|
|
|
[1]陈肇元.高强与高性能混凝土[R].北京:国家自然科学基金 会，1997,351-364.
[2]周履.关于我国预应力混凝土中小跨度铁路桥发展的回顾 与展望[J].桥梁建设，1996,(3):37-43.
[3]周履.桥梁耐久性发展历史与现状[J].桥梁建设，2000,(4): 58-61.
[4]石人俊等.粉煤灰高强高性能混凝土研究和应用[A].高强混 凝土及应用-第二届学术讨论会论文集[C]:北京:土木工程 学会，1995,280-288.
[5]张璐明等.80~90 MPa粉煤灰高性能混凝土[R].北京:国家自 然科学基金会，1997,30-47.
[6]刘秀芬.高性能混凝土在桥梁工程中的应用[J].桥梁建设， 1999,(4):73-76.
[7]石人俊.氨基磺酸盐高效减水剂对混凝土坍落度，有效减水 率和强度的影响[J].混凝土外加剂，2002,(4):3-8.
[8]吴佩刚等.高强混凝土的研究与应用[M].北京:清华大学出 版社，1998,1-5.
[9]石人俊等.高强度棍凝土的研究及其在红水河铁路斜拉桥 中的应用[[J].土木工程学报，1982,(2):41-51.
[10] Dr Johann Prank.当今欧洲混凝土外加剂的研究进展[A].混 凝土外加剂及其应技术[C].北京:机械工业出版社，2004, 13-27.
[11]宣怀平，林国英.聚羧酸高性能减水剂及应用[J].混凝土， 2004,(9):18-23.
|
|
|
|
2005, Vol. 22 
