Development of internal humidity in concrete at early ages;

Analysis on surface protection time for concrete at early age in winter;

Numerical simulation of cracking of early-age concrete three-point beams;

Numerical analysis of softening relationship for early-age concrete

By analysis,the recurrence interval is found about design wind velocity in construction of cooling tower;and then,by using research findings of characteristics of early-age concrete obtained by scholars,and considering construction method of tower wall,the analysis of tower wall strength and local stability of a large hyperbolic cooling tower in construction time,is made.

Calculation of moisture diffusion coefficient in early age concrete from interior humidity tests;

To deal with the properties of early age concrete while allowing for the influence of curing temperature on the strength development rate and on ultimate mechanical behavior of concrete, the concept of “aging degree” is introduced.

A methodology to calculate stress-dependent strains form the very beginning of concrete placing is developed, which can be done directly by vibrating wire strain readings without the efforts to identify time dependent parameters such as expansion coefficients of early age concrete.

In this paper,the influence of early loading on young concrete on the longterm performance was investigated by testing the 28 days characteristics of the loaded concrete specimens.