... of chemical crystallization, type HY-V highly efficient rapid burning aid, a kind of high-tech products (national invention patent ... production process and increasing equipment investment.I.Action Principle Type HY-V highly efficient rapid burning aid, containing efficient mineralizing ... days ≥ 28 MPa, compressive strength at 28days≥ 50 MPa. HY-V Series of Highly Efficient Rapid Burning Aids For Raw ...