Analysis of fine-dispersed chalk usage as mineral additive in the composition of sand aggrerate concrete
DOI:
https://doi.org/10.15587/2313-8416.2016.85576Keywords:
concrete, chalk, addition, density, calcium hydrocarboaluminate, cement, new compositionAbstract
The research results of fine-disperse chalk addition on physical and mechanical properties of the cement stone and concrete are shown. It is determined that fine-disperse chalk addition in the binder composition increases the content of ultrafine particles. The chalk particles fill the pore space between the cement particles, increasing the packing density, which leads to a density increase, which consequently leads to improved physical and mechanical properties of the concrete: water tightness, cold resistance, corrosion resistance, crack resistance and other properties
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