出版社：Consejo Superior de Investigaciones Científicas
摘要：This article proposes a methodology for estimating the striking time for reinforced concrete slab floors build with industrial systems. For this, a study of maturity of concrete used in such construction is performed. To make the maturity curve in the laboratory, the methodology described in ASTM C1074 is implemented by calculating the activation energy for the three proposed methods and measuring the thermal history of the concrete at a controlled temperature. Finally, a reinforced concrete slab floor is monitored and the striking time is estimated. It has been observed that the final setting time is not recommended for striking slabs floors, as recommended by the manufacturers of concrete in Colombia. Striking time obtained is higher than the final setting time, having a difference of up to 11 hours at the most critical case.
其他摘要：This article proposes a methodology for estimating the striking time for reinforced concrete slab floors build with industrial systems. For this, a study of maturity of concrete used in such construction is performed. To make the maturity curve in the laboratory, the methodology described in ASTM C1074 is implemented by calculating the activation energy for the three proposed methods and measuring the thermal history of the concrete at a controlled temperature. Finally, a reinforced concrete slab floor is monitored and the striking time is estimated. It has been observed that the final setting time is not recommended for striking slabs floors, as recommended by the manufacturers of concrete in Colombia. Striking time obtained is higher than the final setting time, having a difference of up to 11 hours at the most critical case.
关键词：Madurez; descimbrado; energía de activación; hormigón; sistemas industrializados; tiempos de fraguado
