Patent ID: 7837787

Claim:
A construction composition comprising: (1) an ash in an amount of 90.0-99.9 wt. %, based on the total weight of the construction composition, wherein the ash is fly ash or bottom ash; (2) an additive composition in an amount of 0.1-10. 0 wt. %, based on the total weight of the construction composition, wherein the additive composition comprises a component from group ( 2 a ) and a component from group ( 2 b ), wherein group ( 2 a ) consists of metal chlorides and wherein group ( 2 b ) consists of silica, zeolite and apatite, and wherein group ( 2 a ) comprises 70.0-99.0 wt. % of the total additive composition and group ( 2 b ) comprises 1.0-30.0 wt. % of the total additive composition; and (3) cement, in an amount of 0.0-5.0 wt. %, based on the total weight of the construction composition.