PROCESS FOR THE PROTECTION OF REINFORCEMENT IN REINFORCED CONCRETE
摘要
The invention provides a reinforced concrete having improved corrosion resistance in which the content of voids in the concrete at the surface of the steel reinforcement is below 0.8 %, preferably below 0.5 %, more preferably below 0.2 % by area of steel and in which there is a layer of solid alkali, preferably at least one micron in thickness on the steel surface. The reinforced concrete preferably has a chloride threshold level of at least 0.5 % preferably at least 0.8 % by weight of the cement. The invention also provides a process for reducing corrosion of steel reinforcement in concrete which comprises forming a reinforced concrete in which the voids at the steel surface are below 0.5 % by volume and in which there is a layer of solid alkali on the steel surface the layer being at least 1 micron in thickness and covering at least 20 % of the steel surface.
申请公布号
EP1259468(A1)
申请公布日期
2002.11.27
申请号
EP20010946837
申请日期
2001.01.26
申请人
IMPERIAL COLLEGE OF SCIENCE, TECHNOLOGY AND MEDICINE