Temperature detection and stress calculation of mass concrete during hardening process

The main problem,which has to be solved for the construction of mass concrete,is the appearance of crack of concrete due to the temperature change resulting from the emission difficulty of huge hydration heat of gelled material and the concrete contraction effects on the construction.In this paper,through the stress analysis of the heat-expansion and cold-contraction during hardening process of mass concrete,we propose some specific procedures and measures to control the temperature of mass concrete.With the engineering projects,we introduce how to use computer and temperature-heat flux detecting instrument to measure the temperature change of mass concrete and according the observed data,we calculate and analyze the stress of concrete.We obtain some methods on controlling crack caused by temperature and provide guidance for construction of mass concrete.