Alkali-activated binder, alkali-activated mortar, concrete products and wet red clay paving material using binder
AssigneeIndustry Foundation of Chonnam National University
InventorsJin Kyu Song, Keun Hyeok Yang
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Abstract
The present invention relates to an alkali-activated binder which can be used as a binder for replacing cement, and more particularly, to an alkali-activated binder, and to mortar, concrete, concrete products, and wet loess paving material comprising the binder, in which inorganic sodium-free alkaline materials are contained to reduce the total amount of Na2O and K2O in concrete, thus improving the workability and the strength stability and inhibiting the alkali-aggregate reaction.
Claims14
A cement-free alkali-activated binder, comprising:
- slag or fly ash;
- and
- a magnesium salt in an amount of 0.5-30 parts by weight based on 100 parts by weight of slag or fly ash, wherein the magnesium salt is any one selected form the group consisting of magnesium stearate, magnesium metaphosphate, and magnesium lactate.
An alkali-activated wet loess paving material, comprising:
- an alkali-activated binder comprising slag or fly ash and sodium-free inorganic alkaline material, loess, coarse aggregate, an additive, fibers, and water, wherein the water is used so that a ration (W/B) of water (W) to alkali-activated binder (B) is 40-65%.
Dependencies are inferred from the claim text.