The mix ratio of silicon powder
For the mix design of silica concrete, mainly according to the design requirements, to determine the incorporation method of silica powder, the best dosage of silica powder, the optimal dosage of water reducing agent, and sand and stone adjustment, and the other is carried out according to the usual concrete design method. An incorporation method of silicon powder: there are generally two methods of silicon powder in concrete: internal mixing and external mixing, which should be used with water reducing agent. The internal mixing method often uses silica powder to replace cement, an equal amount to return, and a partially equal amount to replace two kinds of, an equal amount to replace silica powder content to replace equivalent cement, part to replace 1kg silica powder to replace 1 ~ 3kg cement, as a study of the general scope of 5% ~ 30%, water-cement ratio generally remains unchanged: The addition method refers to the silica powder as an admixture in concrete, and the amount of cement is not reduced, the mechanical properties of the concrete obtained by the addition method are much higher, but the amount of cementing materials in the concrete is increased. b) The optimal dosage of silica powder: too little silica powder in concrete will not improve the performance of concrete, but too much silica powder will make the concrete too sticky, difficult to construct, large shrinkage deformation, and poor freezing resistance. Therefore, when mixing silica powder, the optimal dosage should be found to obtain the best results. Under normal circumstances, the effect of mixing amount is more satisfactory within 10%. The appropriate dosage of silica powder is generally determined by the silica powder used, the cement type, and the aggregate properties. Several dosage amounts of silica powder are selected, such as 3, 5, 7, 10%, etc., to form concrete specimens, and R-SF (strength - silica powder content) curves are drawn to determine. It is worth noting that the price of silicon powder is high, and technical and economic indicators should be considered when determining the best dosage of silicon powder. If you are looking for high quality, high purity and cost-effective Silicon powder, or if you require the latest price of Silicon powder, please feel free to email contact mis-asia.