Manufacturing method of recycled sand using 火山灰

摘要

1) A method for producing reclaimed sand using 火山 하여 by mixing and stirring calcined gypsum in addition to a manufacturing method using cement in known volcanoes.;(The composition ratio of reclaimed sand is shown in the chart ① ② below);[Index];1. 火山灰 refers to the 灰 after the occurrence of 火山.;2. Cement refers to Portland Cement.;3. Plasma refers to the chemical molecular formula caso ₄ 1 / 2H ₂ O.