Analysis on Effect of Age and Temperature on Concrete Strength in Cold Area
The emphasis is to discuss the interrelation between the strength and temperature,age and other factors of concrete under the condition of construction temperature in winter.Through the evaluation and examination of the natural environment condition,the age setting and the compression resistance index,the different curing methods and curing time are designed for the low-temperature condition to simulate the low-temperature natural curing and other adverse curing conditions in winter,which reflect the practical curing state of project site as realistically as possible.Through the observation of internal temperature of the concrete specimen under the natural environment temperature and the same curing condition,the compressive strength of the concrete specimen under the different indoor curing methods and ages is tested,and the compressive strength value of concrete in the period is obtained.Under the condition of determined low temperature,the influence of curing age on the compressive strength of concrete and the change rule of the temperature inside and outside of the specimen are determined,and the reference is provided.
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