Method for producing materials from recycled glass and cement compositions
First Claim
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1. A process to produce recycled glass/cement panels comprising:
- (a) delivering materials including (i) 25-79% by weight of glass having a particle size in the range of 1 μ
m to 25 mm;
(ii) 19-30% by weight Portland cement; and
(iii) an alkali-silica reaction suppressant selected from the group consisting of metakaolin, fly ash, silica fume and blast furnace slag present in an amount up to 22% by weight(b) adding up to 3% by weight of a dispersant and water to said materials to create a slurry that is inert, non-toxic and greater than 90% inorganic material, wherein the water content in said slurry ranges from 4% to 20% by weight;
(c) mixing said slurry under conditions to avoid curing of the product during operation and to breakdown agglomerate and to mix said slurry;
(d) casting said slurry into a mold having a dimension ranging from 48″
×
96″
to 60″
×
120″
;
(e) vibrating said mold to further spread said slurry in the mold evenly and to release all entrapped air at a vibration frequency in the range of 10-200 Hz and a vibration amplitude in the range of 0-5 mm;
(g) curing said mold at temperatures ranging from 50 to 185°
F. with a humidity range from 70% RH to 100% RH; and
(h) removing the recycled glass/cement panel from said mold wherein said panel has a compressive strength between 2000-16,750 psi, a flexural strength between 648-1170 psi and a porosity between 0.1% to 6.5%.
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Abstract
A method of producing material from recycled glass comprising: preparing a mixture of glass in a cementitious matrix, and an alkali-silica reaction suppressant; providing a mold of the material and coating said mold with a release agent; casting said mixture into said mold; curing said mold; and removing the material from said mold. The recycled glass and concrete compositions are: 25-79% by weight glass; 8-35% by weight cement and up to 22% by weight of an alkali-silica reaction suppressant.
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Citations
12 Claims
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1. A process to produce recycled glass/cement panels comprising:
-
(a) delivering materials including (i) 25-79% by weight of glass having a particle size in the range of 1 μ
m to 25 mm;
(ii) 19-30% by weight Portland cement; and
(iii) an alkali-silica reaction suppressant selected from the group consisting of metakaolin, fly ash, silica fume and blast furnace slag present in an amount up to 22% by weight(b) adding up to 3% by weight of a dispersant and water to said materials to create a slurry that is inert, non-toxic and greater than 90% inorganic material, wherein the water content in said slurry ranges from 4% to 20% by weight; (c) mixing said slurry under conditions to avoid curing of the product during operation and to breakdown agglomerate and to mix said slurry; (d) casting said slurry into a mold having a dimension ranging from 48″
×
96″
to 60″
×
120″
;(e) vibrating said mold to further spread said slurry in the mold evenly and to release all entrapped air at a vibration frequency in the range of 10-200 Hz and a vibration amplitude in the range of 0-5 mm; (g) curing said mold at temperatures ranging from 50 to 185°
F. with a humidity range from 70% RH to 100% RH; and(h) removing the recycled glass/cement panel from said mold wherein said panel has a compressive strength between 2000-16,750 psi, a flexural strength between 648-1170 psi and a porosity between 0.1% to 6.5%. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification