MP-VSI Series Mobile VSI Crushing Plants – SANME

The sturdiness of machine-made sand is slightly worse than that of river sand, but it still reaches the excellent quality index of GB/T 141684293 standard, and there is no problem in the use of ordinary concrete. However, in the use of concrete members often subjected to friction impact, in addition to the admixture must be added, the ratio of lime to sand, the crushing index of sand and the content of stone powder should be controlled.

Through the test of cement, mortar and concrete, there is no significant difference between the preparation of concrete with machine-made sand and natural sand. Generally speaking, under the premise of the same slump, the water consumption of machine-made sand should be slightly larger, but it should be considered according to the construction conditions, structures and transportation and other factors. But the strength of concrete is basically unchanged; When special concrete such as pumped concrete is prepared with machine-made sand, it should be noted that the sand rate should not be too high to prevent the engineering quality such as the strength and durability of concrete from being reduced.

In the premise of meeting the performance indicators of sand, the selection of economically feasible programs, not only to meet the construction quality requirements, but also to effectively control the production cost, so in the lack of natural sand resources in the area, the use of high-efficiency impact crusher or impact crusher to manufacture high-quality mechanical sand for concrete construction production is not only feasible, its comprehensive benefits are also significant. At the same time, in the use of machine-made sand, it can also carry out research and experiments in the discipline of building materials, accumulate experience, and lay a cornerstone for the development of the discipline