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Concrete is widely used in engineering construction, and studying how to improve the strength of concrete is particularly important.The coarse aggregate is one of the elements in concrete, its property affects the strength of concrete prominently.The effect of coarse aggregate size distribution on the development process of concrete strength was studied, while keeping the constant content of.
We are an innovative enterprise integrating R & D, production, sales and after-sales service. We have more than 60 years of experience in the field of crushing, beneficiation, sand making and building materials. We serve customers in more than 160 countries around the world.