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US 10,087,105 B2Granted
Lightweight concrete formulations
Assignee2581776 Ontario Inc.
InventorsChris Calvin, Matthew Boehler
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Assignee2581776 Ontario Inc.
InventorsChris Calvin, Matthew Boehler
Estimating the term…
A lightweight concrete formulation containing Portland cement, aggregate, glass particles, water and metakaolin. At least 80% of the glass particles have a grain size of less than 2 mm. The glass particles contribute between 3% and 20% of the total weight of the concrete formulation. The metakaolin contributes between 4% and 12% of the total weight of the concrete formulation. The glass particles are preferably expanded glass particles. Also provided is a lightweight grout formulation containing Portland cement, glass particles, water and metakaolin. At least 80% of the glass particles have a grain size of less than 2 mm. The glass particles contribute between 3% and 15% of the total weight of the grout formulation. The metakaolin contributes between 7% and 15% of the total weight of the grout formulation.
A concrete formulation comprising Portland cement, aggregate, expanded glass particles, water and metakaolin, wherein at least 80% of the expanded glass particles have a grain size of between 0.25 mm and 0.5 mm, the expanded glass particles contribute between 3% and 20% of the total weight of the concrete formulation, the Portland cement contributes at least 30% of the total weight of the concrete formulation, and the metakaolin contributes between 7% and 15% of the total weight of the concrete formulation, and wherein the compressive strength of the concrete formulation is at least 30 MPa after curing.
A concrete formulation comprising Portland cement, aggregate, expanded glass particles, sand, water and metakaolin, wherein at least 80% of the expanded glass particles have a grain size of between 0.25 mm and 0.5 mm, the expanded glass particles contribute between 3% and 20% of the total weight of the concrete formulation, the Portland cement contributes at least 21% of the total weight of the concrete formulation, and the metakaolin contributes between 5% and 15% of the total weight of the concrete formulation, and wherein the compressive strength of the concrete formulation is at least 30 MPa after curing.
A grout formulation comprising Portland cement, expanded glass particles, water and metakaolin, wherein at least 80% of the expanded glass particles have a grain size of between 0.25 mm and 0.5 mm, the expanded glass particles contribute between 3% and 15% of the total weight of the grout formulation, the Portland cement contributes at least 32% of the total weight of the concrete formulation, and the metakaolin contributes between 7% and 15% of the total weight of the grout formulation, and wherein the compressive strength of the grout formulation is at least 30 MPa after curing.
Dependencies are inferred from the claim text.