论文部分内容阅读
二次风冷骨料技术是在水利水电工程施工混凝土预冷“三冷法”的基础上发展起来的一项新技术 ,是通过对骨料连续进行两次风冷并在混凝土搅拌过程中加片冰降低混凝土出机口温度的方法。与传统的“三冷法”比较 ,它具有占地少、冷耗低、投资省、运行费用低、运行可靠、操作简便等特点。江口水电站工程混凝土施工工期紧、施工场地狭窄 ,采用二次风冷骨料技术是工程按进度施工的有力保证。对二次风冷技术的工艺流程作了详细介绍。
Secondary air-cooled aggregate technology is a new technology developed on the basis of the “three-cold method” of concrete pre-cooling in construction of water conservancy and hydropower projects through continuous air-cooling of aggregate twice and air-cooling during concrete mixing Method of reducing the temperature of concrete exit port by ice. Compared with the traditional “three cold method”, it has the characteristics of less land occupation, low cooling loss, investment saving, low operation cost, reliable operation and easy operation. The concrete construction period of Jiangkou Hydropower Project is tight and the construction site is narrow. The secondary air-cooled aggregate technology is a powerful guarantee for the progress of the project. The secondary air cooling technology process described in detail.