powdered Portland cement, lime and some other ingredients; and water. Sand is the most abundant ingredient in the mix. The powdered cement and lime are the glue that holds the sand together and allows ...

"Your material hopper has strike gates that control the volume of the sand and rock that enter the mix," says Horning. "Your cement has a constant flow and you change your mix design by the amount ...

Japan: Mitsubishi UBE Cement Corporation (MUCC) has developed a carbon-negative artificial sand product called ‘GX-e Beads.’ ...