Development of strength and heat of hydration of young concrete at low temperature - influence of granulated blast furnace slag, silica and limestone

Abstract: The work presented in this licentiate thesis was carried out within the project task Use of industrial by-products and filler in concrete, part Early-age strength development at low temperatures in concrete with mineral additions/fillers. To improve the understanding and to increase the data available, the study investigated the development of compressive strength and heat of hydration while curing at 5°C compared with curing at 20°C. Heat and strength development were investigated for different types of mineral additions and filler. The result was used to calculate the early-age k-value of the additions.