盐湖地区高强混凝土的配制技术和基本性能

Proportion and Basic Properties of High Strength Concrete Used in Salt Lakes

针对我国盐湖地区的环境条件,成功研究了适用于盐湖地区的高强混凝土的配制技术,并测定了其强度和耐久性.结果表明,该混凝土具有强度高、抗碳化能力强、抗渗性好、收缩变形小、抗氯离子渗透能力强、抗钢筋锈蚀、抗冻性和抗盐湖卤水腐蚀性好的特征,尤其是在卤水中的冻蚀或卤水中的干湿循环双因素作用下,具有较高的抗蚀性.

Aimed at special application in salt lake, high strength concrete accommodating to salt lake environment (SLHSC) were successfully developed and its properties were determined including strength and durability. The test results show that SLHSC features high strength, high carbonization resistance, excellent antipermeability, low shrinkage, antichloride diffusion, providing sound protection for reinforcing bars, high freezethaw durability and bittern resistance. Besides, additional important properties are high bitternfreezethaw durability and bitterndryingwetting durability under the combined action of two durability factors, which bear special significance for the extensive engineering practice.