Quantitative analysis of freeze-thaw durability of concrete
It describes the concrete freeze-thaw damage mechanism and process of freeze-thaw damage;according to the experimental results of concrete freeze-thaw cycle,analyzes concrete compressive strength、splitting tensile strength and flexural strength with the variation of the number of freezing and thawing,and established the concrete flexural strength of the exponential decay law of equation,so it can analyzes the freeze-thaw durability of concrete quantitatively;introduces the concept of freezing factor for further analysis of concrete durability and strength of the rela- tionship;meanwhile puts forward key measures to improve the performance of freeze-thaw resistance of concrete.
The paper introducess the implemented conditions which colling recycle of flexible base on Ying-DaLine.It over all xpounds the investigation of road condlitions of original pavement,indoor trial study,determination of trial lot plan as well as completion of trial lot etc.