Chemicals for cement&concrete

Cement is manufactured by strictly controlling the chemical combination of calcium, silicon, aluminum, iron, and other ingredients. Common materials used to make cement include limestone, shells, chalk or marl in combination with shale, clay, slate, blast furnace slag, silica sand, and iron ore.
Chemical admixtures are components of concrete other than Portland cement, water and aggregates. They are added to the mixture immediately before or during...
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