Experimental study on creep and shrinkage of high-performance ultra lightweight cement composite of 60MPa
Kok-Seng Chia, Xuemei Liu, Jat-Yuen Richard Liew, Min-Hong Zhang
STRUCTURAL ENGINEERING AND MECHANICS | TECHNO-PRESS | Published : 2014
Creep and shrinkage behaviour of an ultra lightweight cement composite (ULCC) up to 450 days was evaluated in comparison with those of a normal weight aggregate concrete (NWAC) and a lightweight aggregate concrete (LWAC) with similar 28-day compressive strength. The ULCC is characterized by low density < 1500 kg/m3 and high compressive strength about 60 MPa. Autogenous shrinkage increased rapidly in the ULCC at early-age and almost 95% occurred prior to the start of creep test at 28 days. Hence, majority of shrinkage of the ULCC during creep test was drying shrinkage. Total shrinkage of the ULCC during the 450-day creep test was the lowest compared to the NWAC and LWAC. However, correspondin..View full abstract
Awarded by A*Star, Science and Engineering Research Council of Singapore
Grateful acknowledgement is made to A*Star, Science and Engineering Research Council of Singapore (project no. 0921420044) for funding this research.