Producing cementitious materials from inert fillers with fine pozzolanic particle coatings
AssigneeWisconsin Alumni Research Foundation
InventorsBu Wang, Raghavendra Ragipani, Qitong Liu, Payam Hosseini
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Abstract
A method to produce cementitious materials from low-cost fillers and use of the cementitious materials as supplementary cementitious materials (SCM). The method comprises coating filler particles (e.g., limestone particles) with fine pozzolanic particles (e.g., nanosilica particles), producing composite particles with inert cores and reactive surfaces. When introduced into a cementitious environment, the reactive coating is converted to a binder (e.g., calcium-silicate-hydrate) through pozzolanic or similar reactions, cementing the filler particles together.
Claims17
A method of making concrete, the method comprising mixing one or more cementitious materials with an activator in amounts and for a time effective to form the concrete, wherein the one or more cementitious materials comprise composite particles comprising an inert core and a reactive surface.
A method of making concrete, the method comprising mixing one or more cementitious materials with an activator in amounts and for a time effective to form the concrete, wherein the one or more cementitious materials comprise composite particles comprising an inert core comprising non-pyro processed limestone and a reactive surface comprising silica nanoparticles.
A composition of matter comprising:
- an inert core comprising non-pyro processed limestone and a reactive surface comprising silica nanoparticles.
Dependencies are inferred from the claim text.