University of California

Carbonbuilt, Inc.

Technical University of Munich

Master Builders Solutions Admixtures Us, LLC

Iman Mehdipour

Gaurav N Sant

Gabriel D Falzone

Dante A Simonetti

Torben Gädt

David Jassby

Paul Horst Seiler

Yenwen Tseng

Samanvaya Srivastava

Thiyagarajan Ranganathan

Sharu Bhagavathi Kandy

A method of forming a concrete product includes directly capturing COfrom a gas source, the capturing comprising contacting the gas source with an absorption solution having a solvent and a solute, wherein the solvent and/or the solute are capable of reacting with COto form an anionic compound, adjusting the pH of the absorption solution electrochemically to less than about 7 to release the COas a concentrated vapor containing CO, collecting the concentrated vapor containing CO, regenerating the solvent and/or the solute, and optionally collecting the regenerated solvent and/or solute; flowing the concentrated vapor containing COthrough a gas processing unit to adjust at least one of a temperature, a relative humidity, or a flow rate of the concentrated vapor containing CO; and contacting the concentrated vapor containing COwith a concrete component.

Integration of direct air capture system into COmineralization process of concretes and aggregates

Provided herein are integrated biomass combustion-carbonation gas conditioning systems to directly sequester carbon dioxide from biomass-derived CO-containing flue gas. The COis sequestered by mineral carbonation in concrete materials within a carbonation reactor. The mineral carbonation processes sequester COin concrete materials, aqueous slurries, or aggregates without any additional carbon enrichment process. Contacting a CO-containing gas stream from a biomass combustion apparatus with concrete, aggregate, or alkaline solutions, causes a carbonation reaction in which carbonation products such as calcium carbonate (CaCO) and alumina silica gel are formed. The carbonation reactions set forth herein are useful for strengthening concrete and concrete components. Certain processes herein condition the biomass-derived flue gas. The conditioning includes condensing the gas to remove acidic gas, and to remove particulates and water. The conditioning includes adjusting the temperature, relative humidity, and gas flow rate of the biomass-derived flue gas without any carbon capture step before entering the carbonation reactor. The permanent storage of COin concrete materials reduces carbon emissions from biomass combustion systems. The process does so, in certain embodiments, at low temperatures, ambient pressure, and even under dilute COconcentrations in CO-containing flue gas streams. For example, the COconcentration in a CO-containing flue gas stream from a biomass combustion system may be lower than 20 volume percent (vol %) and be used to produce low-carbon concrete materials.

Methods and systems for biomass-derived COsequestration in concretes and aggregates

Described herein are processes for synthesizing hydraulic-carbonating binder systems through mechanochemical process, including providing a blend of material stream one of aluminosilicate or calcium aluminosilicate mineral material and material stream two of alkaline-rich mineral material; and simultaneously fractioning the blended minerals while contacting the blended minerals with a CO-containing in the mechanochemical reactor. This binder system is useful for cementation functions in concrete. The precipitated carbonation products are mainly calcium carbonates (CaCO), magnesium carbonates (MgCO), and amorphous alumina-silica gel. The developed binder system is activated through hydration and/or concurrent hydration-carbonation reactions in concrete and it can be utilized in the form of slurry or dried powder for a wide range of precast and cast-in-place or ready-mix concrete applications. The binder system reacts with cement in concrete to form carbonate/calcium-silicate-hydrate (C—S—H) composite phases that result in enhanced mechanical properties.

Process for production of hydraulic-carbonating binder systems through mechanochemical activation of minerals

A thermoresponsive suspension composition for use in additive manufacturing includes an aqueous suspension of a thermosetting resin, a crosslinking agent configured to react with the thermosetting resin, and a mineral particulate, wherein the thermosetting resin and crosslinking agent react at or above a trigger temperature.

Thermoresponsive suspension composites for 3D printing

Provided herein are compositions and methods of carbonation processing for the fabrication of cementitious materials and concrete products. Embodiments include manufacturing processes of a low-carbon concrete product comprising: forming a cementitious slurry including portlandite; shaping the cementitious slurry into a structural component; and exposing the structural component to a COwaste stream, thereby enabling manufacture of the low-carbon concrete product.

Formulations and processing of cementitious components to meet target strength and CO2 uptake criteria

Formulations and processing of cementitious components to meet target strength and COuptake criteria

Growing community of inventors

Los Angeles, CA, United States of America

Iman Mehdipour