The paper gives the research on pp fiber reinforced self-compact concrete,Including materials choosing and performance researching? The pp fiber reinforced self-compact concrete used in repairing and strengthening project of a cross-bridge of Tianjin is also introduced.

Standards and methods used for detecting the defects,ways,materials, workmanship and acceptance for repairing and strengthening the bridges are expound- ed,and finally,examples are presented in analysis.

Application research on carbon fibre reinforced & repairing concrete structure;