Temperature monitor and control of a massive concrete raft foundation

The general problem of massive concrete construction is the temperature crack, which is caused by the great temperature difference between inside and outside the concrete. In order to control the temperature crack, it is the key to monitor and control the temperatures in the massive concrete construction. Taking the massive concrete raft foundation of Jinzhou Guangdian Building as the research object, the temperatures inside the concrete, casting and atmosphere temperatures were monitored and analyzed. Several effective measures were adopted, including decreasing the casting temperature and temperature inside the concrete, increasing the temperature on the concrete surface and so on. The temperature difference between. inside and outside the concrete was decreased and the temperature cracks in the massive concrete foundation were controlled. The construction quanlity of the massive concrete foundation was guaranteed. Practice method and research results in this paper can provide the reference to the construction on the similar foundation.