研究了自然环境、水中养护、薄膜覆盖3种养护条件对不同粉煤灰掺量混凝土表面吸水率以及表面层(1~5 cm)混凝土的电阻率影响.结果表......

The capillary absorption of water by unsaturated cement-based material is the main reason of degradation of the structur......