Effect Amorphous & Crystalline-Nano SiO2 Powder on Concrete Properties. Improve the properties of concrete with adding nano- size powders of Amorphous and Crystalline SiO2 on concrete mix

      Аннотация: A use powder to improve the properties of concrete is one of the ways to achieve durability of concrete under many circumstances. Use silica powder in the concrete mix and the two types of amorphous and crystalline, to know the best type interaction with cement, And thus the best properties of concrete. Also choose nano scale size in this study to ensure the distribution and spread granular best in the concrete mix. By preparation of several samples and the work of laboratory tests, shows that both types of silica powder increases the efficiency of the concrete, and amorphous silica is the best of crystalline silica. The experimental results and analysis exist in this book valuable terms of reference investigating in the concrete and construction materials industry.

Ключевые слова: Concrete, SiO2 Crystalline, SiO2 Amorphous