Solid alkali-activated binder formulations
AssigneeLouisiana Tech Research Corporation; of Louisiana Tech University Foundation, Inc.
InventorsJohn Matthews, Hussain Shaik, Niloy Paul, Richard Edwards
Life of this patent
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Abstract
A one-part, cement-free, ready-to-use, powdered, solid alkali-activated binder formulation for making a high strength and early setting material when combined with an aggregate and water. The solid alkali-activated binder includes slag and a solid metal carbonate-based alkali activator.
Claims20
A one-part, cement-free, ready-to-use, powdered, solid alkali-activated binder formulation for making a high strength and early setting material when combined with an aggregate and water, the solid alkali-activated binder formulation comprising:
- slag;
- and
- a solid metal carbonate-based alkali activator.
A method of making a solid alkali-activated binder formulation, the method comprising:
- placing slag into a chamber of milling equipment;
- placing a solid metal carbonate-based alkali activator into the chamber of the milling equipment;
- and
- milling the slag and the metal carbonate-based alkali activator to produce a dry solid alkali-activated binder formulation for making a high strength and early setting material when combined with an aggregate and water.
A one-part, cement-free, ready-to-use, powdered, solid alkali-activated binder formulation for making a high strength and early setting material when combined with an aggregate and water, the solid alkali-activated binder comprising:
- blast furnace slag with a comprehensive basicity in of about 0.85 to about 1.20 and an amount of CaO in a range of 10%-60% by weight of the slag;
- and
- solid sodium carbonate as a metal carbonate-based alkali activator;
- wherein the solid alkali-activated binder comprises about 80% to about 98% by weight of the blast furnace slag and about 2% to about 20% by weight of the metal carbonate-based alkali activator.
Dependencies are inferred from the claim text.