冷缩对大体积混凝土的影响及控制措施

Impact and Control Measures of the Cool Shrinkage on the Mass Concrete

分析了大体积混凝土冷缩裂缝产生的原因,通过试验结果表明,在混凝土中掺粉煤灰及同时使用FDN-500R、TMS-500C可减少大体积混凝土的温度应力及早期热裂现象的影响,并提出控制大体积混凝土冷缩的措施。

This paper analyses the cause of resulted from the cracks of the shrinkage of the mass concrete cooled. According to testing result, the smut and the FDN-500R and the TNS-500C mixed up in the concrete could reduce influence of temperature stress and cracks caused by temperature in the early stage of mass concrete, and proposed controlled measures.