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US 10,239,790 B2Granted
Low-density high-strength concrete and related methods
AssigneeSebastos Technologies Inc.
InventorsRandall L. Byrd, Matthew D'ambrosia
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AssigneeSebastos Technologies Inc.
InventorsRandall L. Byrd, Matthew D'ambrosia
Estimating the term…
A low-density, high-strength concrete composition that is both self-compacting and lightweight, with a low weight-fraction of aggregate to total dry raw materials, and a highly-homogenous distribution of a non-absorptive and closed-cell lightweight aggregate such as glass microspheres or copolymer polymer beads or a combination thereof, and the steps of providing the composition or components. Lightweight concretes formed therefrom have low density, high strength-to-weight ratios, and high R-value. The concrete has strength similar to that ordinarily found in structural lightweight concrete but at an oven-dried density as low as 40 lbs./cu.ft. The concrete, at the density ordinarily found in structural lightweight concrete, has a higher strength and, at the strength ordinarily found in structural lightweight concrete, a lower density. Such strength-to-density ratios range approximately from above 30 cu.ft/sq.in. to above 110 cu.ft/sq.in., with a 28-day compressive strength ranging from about 3400 to 8000 psi.
A lightweight Portland cement-based concrete composition comprising:
A lightweight Portland cement-based concrete composition comprising:
A method for preparing a lightweight Portland cement-based concrete composition comprising the steps of:
Dependencies are inferred from the claim text.