Performance-Based Durability Design of Concrete Structures

(A)研究了ASR作用下构件的退化机理。(B)修复和加固表面涂层的长期性能研究了100%硅烷的疏水性能，环氧涂层钢筋和混凝土表面衬里在海洋环境中的性能，FRP片材对下水道混凝土结构的修复和加固。(C)高强和/或高工作性混凝土的性能高强浆体和混凝土在单轴拉伸自收缩约束下的应力和徐变行为，研究了石灰石细粉或磨细高炉矿渣在高和易性混凝土中的收缩、盐度渗透和钢筋锈蚀。(D)环境要求的性能研究海洋环境下混凝土和铸铁构件的生物污垢特性。(E)诊断和维修利用BMS对既有桥梁混凝土优化维修方案中各种缺陷的无损诊断和健康决策技术的发展。

(a) The degradation mechanism of the member subjected to ASRInfluence of degradation of the concrete by ASR on shear capacity including the earthquake performance was investigated.(b) Long term performance of surface coating for repair and strengtheningHydrophobic performance of the 100% silane, performance of epoxy coated steel reinforcement and concrete surface lining in the marine environment, repair and strengthening of sewerage concrete structures by the FRP sheet were investigated.(c) Performance of high strength and/or high workable concreteGenerated stress and creep behavior of high strength paste and concrete under uniaxial tension type self contraction restraint, shrinkage of high strength concrete salinity infiltration and reinforcement corrosion in high workable concrete using limestone fine powder or ground granulated blast-furnace slag were investigated.(d) The required performance from the environmentBiofouling characteristics of concrete and cast iron member under the marine environment was investigated.(e) Diagnosis and maintenanceDevelopment of nondestruction diagnosis and soundness decision technique for various defects in the concrete optimum maintenance plan of the existing bridge using BMS were investigated.