沿海混凝土结构耐久性现场试验方法的优选

为了有效地进行沿海混凝土结构的耐久性检测与评估,通过分析和对比目前国内外混凝土结构常见的耐久性检测方法,结合沿海混凝土结构的特点,提出了一种对沿海混凝土结构进行检测与评估的实用方法.该方法通过人工环境室内加速与现场取样检测、现场暴露试验等,建立人工气候环境与自然环境条件下混凝土结构性能劣化的相似关系,从而通过短期实验实现对新建或待建结构的耐久性评估与寿命预测.为今后对混凝土结构耐久性进行有效的评估提出了一种新的思路.并以一实际工程的耐久性试验方案为例,分析了该方法的具体实施过程.

Optimization of field test method on durability of coastal concrete structure

In order to inspect and evaluate the durability of coastal concrete structures effectively, a practical method for detection and assessment on durability of coastal concrete structures is put forward by analyzing and comparing the current detection methods on durability of concrete structures in association with the characteristics of coastal concrete structures. The method establishes a similarity-relationship of the performance deterioration of reinforced structures between the artificial climate environment and the natural environment through the artificial environment indoor accelerating test, in-situ sampling test, field exposure test, etc. , and achieves the durability assessment and service life prediction of the structure in a relatively short period. It brings forward a new way of thinking to make assessment of durability on concrete structure effectively. Taking the durability test plan of an actual project as an example , the implementation process of the method is analyzed.