MECHANICAL BEHAVIOR OF EARLY-AGE CONCRETE CONTROLED BY TSTM

Abstract

Thermal cracking is caused by large hydration heat of early age concrete in massive structures. For investigating mechanical behavior of early-age concrete and thermal cracking, a kind of temperature-stress testing machine (TSTM) was employd. By controlling the hydration heat in the concrete specimen, different results were obtained on the mechanical behavior of concrete specimens made with the same mix-proportion. Influence of the quasi-complete strain restraint on the mechanical behavior was also investigated.