Optimization of the composition of waste stone crushed, treated with cement, with the addition of natural silica and alkali metal alkylsiliconate
In carrying out economic activities in the field of mining, there is a need for rational use of waste and local raw materials. From the variety of non-metallic minerals, it is possible to isolate waste stone from stone breaking of a building stone, which in rare cases find application as a building material. The aim of the work was to obtain compositions of road-building materials for the structural layers of pavements based on waste stone crushing limestone, treated with cement. The change in the physicomechanical properties of the processed stone crushing waste with the introduction of natural silica and GKZH -11K was investigated. Mathematical dependences of the effect of PC consumption, silica dosages and GKZH-11K on the physicomechanical properties of the processed material are established. The optimal compositions of the processed stone crushing waste with the strength grades M40, M60, M75 and frost resistance F15 were obtained.