Masonry cement composition
AssigneeMartin Marietta Corporation
InventorMilton H. Wills, Jr.
Life of this patent
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Abstract
A masonry cement is prepared by blending portland cement, kiln dust, and fly ash. The cement of this invention exhibits no efflorescence, good board life, workability, and acceptable color for use with such construction materials as brick, cinder block, and concrete block.
Claims20
A masonry cement consisting of from about 25 to about 55 percent portland cement, from about 25 to about 65 percent kiln dust, and from about 10 to about 25 percent fly ash.
A mixture consisting essentially of portland cement in an amount of from 25 to 55 percent by dry weight, cement kiln dust in an amount of from 25 to 65 percent by dry weight, and fly ash in an amount of from 10 to 25 percent by weight.
A method for the preparation of masonry mortar which comprises blending a mixtureconsisting of from 50 to 55 percent portland cement, from 25 to 40 percent kiln dust, and from 10 to 25 percent fly ash, with aggregate and sufficient water to produce a plastic mass.
Dependencies are inferred from the claim text.