초록 ▼

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

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.

대표청구항 ▼

1. 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

1. 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. 2. The concrete formulation of claim 1, wherein the expanded glass particles contribute between 6% and 15% of the total weight of the concrete formulation. 3. The concrete formulation of claim 1, wherein the expanded glass particles contribute at least 12% of the total weight of the concrete formulation. 4. The concrete formulation of claim 1, wherein the metakaolin contributes between 8% and 12% of the total weight of the concrete formulation. 5. The concrete formulation of claim 1, wherein the metakaolin contributes between 8% and 10% of the total weight of the concrete formulation. 6. The concrete formulation of claim 1, wherein the expanded glass particles contribute between 12% and 15% of the total weight of the concrete formulation. 7. The concrete formulation of claim 1, wherein the Portland cement contributes between 30% and 38% of the total weight of the concrete formulation, the aggregate contributes between 16% and 24% of the total weight of the concrete formulation, and the metakaolin contributes between 6% and 12% of the total weight of the concrete formulation. 8. The concrete formulation of claim 7, wherein the Portland cement contributes between 32% and 36% of the total weight of the concrete formulation, the aggregate contributes between 19% and 23% of the total weight of the concrete formulation, and the metakaolin contributes between 8% and 10% of the total weight of the concrete formulation. 9. 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. 10. The concrete formulation of claim 9, wherein the Portland cement contributes between 20% and 35% of the total weight of the concrete formulation, the aggregate contributes between 16% and 24% of the total weight of the concrete formulation, the sand contributes between 22% and 32% of the total weight of the concrete formulation, the expanded glass particles contribute between 3% and 9% of the total weight of the concrete formulation, and the metakaolin contributes between 5% and 11% of the total weight of the concrete formulation. 11. The concrete formulation of claim 10, wherein the Portland cement contributes between 21% and 25% of the total weight of the concrete formulation, the aggregate contributes between 18% and 22% of the total weight of the concrete formulation, the sand contributes between 25% and 29% of the total weight of the concrete formulation, the expanded glass particles contribute between 5% and 7% of the total weight of the concrete formulation, and the metakaolin contributes between 6% and 8% of the total weight of the concrete formulation. 12. 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. 13. The grout formulation of claim 12, wherein the expanded glass particles contribute between 8% and 13% of the total weight of the grout formulation. 14. The grout formulation of claim 12, wherein the metakaolin contributes between 8% and 11% of the total weight of the grout formulation. 15. The grout formulation of claim 12, wherein the expanded glass particles contribute between 8.5% and 10.5% of the total weight of the grout formulation. 16. The grout formulation of claim 12, wherein the Portland cement contributes between 44% and 52% of the total weight of the grout formulation, and the metakaolin contributes between 8% and 13% of the total weight of the grout formulation. 17. The grout formulation of claim 16, wherein the Portland cement contributes between 45.5% and 49.5% of the total weight of the grout formulation, and the metakaolin contributes between 9.5% and 11.5% of the total weight of the grout formulation. 18. The grout formulation of claim 12 further comprising sand, wherein the Portland cement contributes between 32% and 37% of the total weight of the grout formulation, the sand contributes between 20% and 28% of the total weight of the grout formulation, the expanded glass particles contribute between 3% and 9% of the total weight of the grout formulation, and the metakaolin contributes between 8% and 14% of the total weight of the grout formulation. 19. The grout formulation of claim 18, wherein the Portland cement contributes between 33.5% and 35.5% of the total weight of the grout formulation, the sand contributes between 22% and 24% of the total weight of the grout formulation, the expanded glass particles contribute between 5% and 7% of the total weight of the grout formulation, and the metakaolin contributes between 9% and 11% of the total weight of the grout formulation.