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本文介绍了国家体育场大体积混凝土的裂缝控制技术。通过科研机构的温度应力计算及优化方案,利用60天强度评定标准,加大掺合料用量,以及推迟水化温峰时间,并通过精心设计和严格执行施工方案等技术措施。
This article introduces the crack control technology of the mass concrete in the National Stadium. Through scientific research institutes to calculate and optimize the temperature stress, the use of 60-day strength evaluation criteria, increase the amount of admixture, as well as postpone hydration temperature peak time, and through careful design and strict implementation of construction programs and other technical measures.