Patent ID: 8394744

Claim:
A manufactured cementitious binder comprising: hydraulic binder in an amount in the range of from about 40 to 75% by weight of the cementitious binder; metakaolin in an amount of at least 3% by weight of the cementitious binder; silica fume in an amount up to about 15% by weight of the cementitious binder; and cement kiln dust in an amount of at least 10% by weight of the cementitious binder, the cement kiln dust including chlorine in an amount greater than 0.1% by weight of the cement kiln dust, the cementitious binder providing a cementitious settable composition when added with water, wherein for a density from about 12 pounds per gallon to about 11 pounds per gallon obtained without a lightweight additive, said cementitious settable composition exhibits a 24 hour compressive strength at 100 F, as hardened, of at least 700 psi.