Influence of Stone Powder Content from Manufactured Sand Concrete on Shrinkage, Cracking, Compressive Strength, and Penetration

The market demand for manufactured sand has grown rapidly, and the solution to problem of optimum stone powder content from concrete is imminent. workability, early age shrinkage strain cracking, strength, chloride ion penetration, pore structures with different contents were tested study influence concrete. test results show that addition beneficial in improving working performance But at same time, it will increase amount water reducer total an age. workability durability can be significantly improved by adding appropriate powder. However, excessive lead a reduction strength It suggested best water/cement ratio 0.32 10%, 0.45 should less than 20%.