This paper summarizes an engineering experience of solving the problem of thermal cracking in mass concrete by using a large project, Zhongguancun No.1 (Beijing, China), as an example. A new method is presented for controlling temperature cracks in the mass concrete of a foundation. The method involves controlled cycles of water circulating between the surface of mass concrete foundation and th...

The proposed work deals with the use of Ultrasonic pulse velocity technique as an alternative method to identify compressive strength core concrete. non-destructive without causing damages structure is tedious interpretation results influenced by various factors. Hence, empirical relationship developed using artificial neural network model for creating a regression between and concrete specimen...

The Break-Off method is the most recent development in in-place concrete strength testing. In this method, the force required to break-off an in-place concrete cylinder 2.17 in. (55 mm) in diameter and 2-2/4 in. (70 mm) long, is related to the compressive strength of the concrete from a predetermined calibration curve developed for this concrete mix. The reliability of the BreakOff method to te...