医用防辐射大体积混凝土施工质量控制

Construction Technology of Mass Concrete Used to Protect from Medical Radiation

针对医用防辐射大体积混凝土的特殊要求,采用双级配石子混凝土提高混凝土的容重,优化混凝土的配合比,并采用合理的施工和养护措施,使混凝土的内部与外表面温差控制在20℃以内,从而防止裂缝的发生。

According to specific requirement of mass concrete and non-cracks, adopted close-graded stone concrete to improve the capacity of concrete, optimized mixing proportion of concrete. By the appropriate construction measure and maintain method, the difference in temperature between interior and exterior of concrete is controlled within 20℃, thereby the cracks can be prevent.