| 摘要 |
<p>A Binding geopolymer mix, hardening at temperatures from 15 to 95 degrees C, designed for the production of paste, malt and concrete consisting of 35.01 to 93.9% by weight of fly ash with a specific surface of 100 to 600 m<2>/kg, 0 to 40% by weight of material with a specific surface of 200 to 600 m<2>/kg, selected from a group composed of ground Portland clinker, granulated blast-furnace slag and 5 to 15% of an alkali activator, for example a mix of sodium and/or potassium silica glass and NaOH or KOH, expressed as % by weight of Na2O or K2O, with a ratio of SiO2/Na2O or K2O equalling 0.1 to 1.0, and 1.1 to 9.99% by weight of aluminous admixtures containing at least 35% by weight of Al2O3, for example calcium aluminate, sintered aluminous cement, gibbsite, boemite, anhydrous Al2O2, calcinated or non-calcinated bauxite, aluminous clay, calcareous clay, aluminium hydroxide or mica. Advantageously the aluminous admixture should have more than 50% of particles smaller than 60 microns.</p> |
