The Study Based On Super Fiber And Air-entraining Agent Synthesis Technology To Study The Durability Of Cement Concrete Pavement

In road engineering, cement concrete with wide range of sources, high compressivestrength, better durability, low maintenance costs and overall costs, environmentaladaptability, construction and simple operation, these characteristics make cement concreteroad works have certain advantages. Cement concrete road in the natural environment for along bear with traffic-based loading-unloading and other effects, and weather and otherexternal environmental factors, which requires concrete road has sufficient flexuralstrength, low friability coefficient and high impact resistance and excellent wear resistance.However, the concrete itself, there are many shortcomings and deficiencies, which limits itswide range of applications in engineering. Concrete has distinct brittle material itself,which makes it difficult to adapt to the hardening process condensate volume changes inthe different types unbearable after hardening effect dynamic load, greatly reduced thedurability of concrete roads. As cement, mortar, or concrete aggregates are brittlematerial, their low tensile strength, ultimate elongation smaller. Mixing things in thesunshine, the wind in the case, there is not enough time to form the tensile strength toresist the pores due to rapid evaporation shrinkage stress, prone to plastic shrinkagecracking. These weaknesses are easily lead to premature failure of concrete cracking, etc.,making it difficult to play the comprehensive advantages in engineering. Therefore, bymeans of modification and improvement of concrete pavement performance to enhance thecomprehensive advantages of cement concrete pavement on the road for its project topromote the application of great significance.This thesis is a study of the use of eco-fiber composite way to achieve the purpose ofimproving the performance. By a large number of indoor and outdoor test, showedincorporation high tensile strength, ultimate elongation, good alkali resistance fibers asreinforcement can overcome these drawbacks; incorporation of air entraining agent mayreduce water consumption and increase the flow of concrete to reduce drying shrinkage.Thereby improving the concrete flexural strength, tensile strength, compressive strength,fatigue resistance, resistance to temperature deformation, impact resistance, crackresistance crushing capacity, freezing capacity, impermeability and other properties.