Use of waste glass in concrete
First Claim
1. A set glass-concrete composition which comprises chromium glass particles and reactive aggregate dispersed in hydrated cement, wherein said chromium glass particles have a green color and have an average diameter of less than 0.5 mm and comprise a sufficient amount of chromium to suppress a detrimental chemical reaction between the hydrated cement and the reactive aggregate, wherein the chromium glass particles do not contain an amount of zirconium which is sufficient to impart enhanced alkali resistant properties to the chromium glass particles.
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Abstract
The present invention relates generally to a glass formula for incorporation in glass-concrete compositions. The glass contains chromium. A detrimental reaction between the cement and the chromium glass and/or a reactive aggregate glass is suppressed in the set glass-concrete compositions.
40 Citations
24 Claims
- 1. A set glass-concrete composition which comprises chromium glass particles and reactive aggregate dispersed in hydrated cement, wherein said chromium glass particles have a green color and have an average diameter of less than 0.5 mm and comprise a sufficient amount of chromium to suppress a detrimental chemical reaction between the hydrated cement and the reactive aggregate, wherein the chromium glass particles do not contain an amount of zirconium which is sufficient to impart enhanced alkali resistant properties to the chromium glass particles.
- 2. A set glass-concrete composition which comprises chromium glass particles dispersed in hydrated cement, wherein said chromium glass particles have a green color and have an average diameter of greater than 0.5 mm and comprise a sufficient amount of chromium to suppress a detrimental chemical reaction between the hydrated cement and the chromium glass particles, wherein the chromium glass particles do not contain an amount of zirconium which is sufficient to impart enhanced alkali resistant properties to the chromium glass particles.
- 13. A process for making a set glass-concrete composition which comprises mixing dry cement, water, a reactive aggregate and chromium glass particles having a green color and having an average diameter of less than 0.5 mm and comprising a sufficient amount of chromium to suppress a detrimental chemical reaction between the cement and the reactive aggregate, wherein the chromium glass particles do not contain an amount of zirconium which is sufficient to impart enhanced alkali resistant properties to the chromium glass particles.
- 14. A process for making a set glass-concrete composition which comprises mixing dry cement, water, and chromium glass particles having a green color and having an average diameter of greater than 0.5 mm and comprising a sufficient amount of chromium effective to suppress a detrimental chemical reaction between the cement and the chromium glass particles, wherein the chromium glass particles do not contain an amount of zirconium which is sufficient to impart enhanced alkali resistant properties to the chromium glass particles.
Specification