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三峡工程质量控制至关重要.由于顶带机、平仓机等一批高强度现代化设备的使用,已使三峡工程的混凝土日产量和年产量连续刷新世界记录,而大体积、高强度的混凝土生产使得温控防裂工作更加重要、突出.为了做好三峡工程的温度控制,我们主要从以下6个方面入手:(1)优化设计配合比,控制混凝土水化热;(2)拌和制冷,控制出机口温度;(3)遮阳、覆盖与仓面喷雾,调节环境温度,控制温升;(4)混凝土通水冷却,削减其内部水化热;(5)混凝土表面养护与保温,防止裂缝产生;(6)科学施工组织,是实施温控极其重要的环节.实践证明,三峡二期工程左厂~#11～~#14坝段的温控效果良好.
The quality control of the Three Gorges Project is of paramount importance, as the use of a number of high-strength modern equipment such as top belt machines and unwinding machines has continuously revamped the world records for the daily output and annual output of concrete in the Three Gorges Project, while large-volume, high-strength concrete In order to do a good job in the temperature control of the Three Gorges Project, we mainly start from the following six aspects: (1) optimize the design mix, control of concrete hydration heat; (2) mixing and cooling, Control the temperature at the machine’s mouth; (3) sunshade, cover and spray surface, adjust the ambient temperature and control the temperature rise; (4) cool the concrete through water to reduce its internal hydration heat; (6) The scientific construction organization is an extremely important part of the implementation of temperature control.It has been proved that the temperature control effect of the left factory ~ # 11 ~ # # 14 of the second phase of the Three Gorges Project is good.