MEASURING METHOD OF CONCRETE CREEP COEFFICIENT IN EARLY AGE

摘要

The present invention relates to a method for conveniently measuring a concrete creep coefficient necessary for the initial temperature stress interpretation of a concrete structure, can reflect the temperature history of a real structure, materials, and combination, and includes a step of calculating a deformation rate generated by stress comprising an elasticity deformation rate and a creep deformation rate according to time stages, a step of calculating an elasticity coefficient according to time stages from compression strength tests or an elasticity coefficient prediction model, and a step of determining elasticity coefficient of concrete according to time stages and a deformation rate against stress applied to the concrete and determining the size of the prediction model factors from a creep prediction model formula. [Reference numerals] (AA) Stress curved line(without creep); (BB) Stress curved line(including creep)