Abstract ▼ AI-Helper

Recently mass concrete structures are being installed often and big hydration heat proceeds due to lots of concrete casting on those works. Thermal crack may happen on structures by the proceeded hydration heat and this would cause damage to structures. Various ways to control thermal crack have bee...

Recently mass concrete structures are being installed often and big hydration heat proceeds due to lots of concrete casting on those works. Thermal crack may happen on structures by the proceeded hydration heat and this would cause damage to structures. Various ways to control thermal crack have been presented, but more realistic ways are required considering installation period and cost matter. thus we would like to present a way of controlling thermal crack by changing curing temperature by means of analytical method. for this, we verified credibility of the program used comparing and analyzing the values gained from measuring hydration heat in the field, and estimated how curing temperature does influence to hydration heat, thermal stress and thermal crack by increasing curing temperature and cubic volume of the structure. Consequently, the program used did sharply estimate the maximum temperature, its proceeded time and rising & downward curve of hydration temperature, and it showed that we could control temperature crack of the mass concrete by changing curing temperature.