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海水对桥梁基础的侵蚀作用及试验研究
引用本文:陈玉江,周科平,胡建华.海水对桥梁基础的侵蚀作用及试验研究[J].混凝土,2007(9):30-32,36.
作者姓名:陈玉江  周科平  胡建华
作者单位:中南大学,资源与安全工程学院,湖南,长沙,410083
基金项目:国家自然科学基金 , 高等学校博士学科点专项科研项目
摘    要:桥梁混凝土基础受到海水侵蚀,阐述了海水对混凝土腐蚀的机理,研究了混凝土的防腐方法并对各种方法进行了综合比较和分析,择优选择.在试验室进行混凝土的配合比设计,掺人新的添加剂,制作了几组试件,并使其处于具有侵蚀性离子存在的环境,用试验模拟了侵蚀性存在的各种情况,对不同侵蚀条件下混凝土试件进行了力学性质试验研究和渗透高度研究.对海水条件下混凝土的耐久性设计和应用具有参考价值.

关 键 词:侵蚀机理  桥梁基础  试验方法  抗压强度  耐久性  添加剂  海水  桥梁基础  侵蚀作用  力学性质试验  研究  foundation  bridge  water  marine  effect  价值  应用  耐久性设计  高度  条件  情况  性存在  试验模拟  环境  侵蚀性
文章编号:1002-3550-(2007)09-0030-03
修稿时间:2007-05-28

Study on the effect of marine water erodes to bridge foundation
CHEN Yu-jiang,ZHOU Ke-ping,HU Jian-hua.Study on the effect of marine water erodes to bridge foundation[J].Concrete,2007(9):30-32,36.
Authors:CHEN Yu-jiang  ZHOU Ke-ping  HU Jian-hua
Affiliation:School of Resource and Safety Engineering, Central South University, Changsha 410083, China
Abstract:Based on the bridge foundation in marine environment.The principles of concrete foundations' eroding in marine environment were expatiated,meanwhile,the methods of resistance on eroding were researched,and the better one is chosen from the methods compared and analyzed.In laboratory,the mixture ratios were designed and several samples were completed with new additive mixed into.The laboratory tests placed the concrete under ionic erosion,mechanical properties and height of penetration are analyzed in different erosive conditions.The conclusion obtained can be referred to in the design and applications of concrete foundation in marine environment.
Keywords:erosive mechanism  concrete bridge foundation  test method  compress strength  durability  additive
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