Patent ID: 8431100

Claim:
A method for producing a formed building material comprising: a) contacting a gaseous waste stream comprising a CO 2 with water comprising proton removing agent to form a CO 2 charged water; b) producing a CO 2 -sequestering component from a saltwater solution of divalent cations and the CO 2 charged water under one or more of precipitation conditions favoring precipitation of the CO 2 -sequestering component comprising a metastable carbonate comprising amorphous calcium carbonate, vaterite, aragonite, or combinations thereof; and c) forming the formed building material from the CO 2 -sequestering component in a process comprising contacting the CO 2 -sequestering component with water, wherein the formed building material is selected from the group consisting of a) a brick having a compressive strength ranging from 5 to 100 MPa; b) a block having a compressive strength ranging from 5 to 100 MPa; c) a tile having a compressive strength ranging from 5 to 75 MPa; d) a cement board having a compressive strength ranging from 5 to 50 MPa; e) a drywall having a compressive strength ranging from 1 to 20 MPa; f) a conduit having a compressive strength ranging from 5 to 75 MPa; g) a beams having a compressive strength ranging from 35 to 150 MPa; h) a basin having a compressive strength ranging from 5 to 60 MPa; i) a column having a compressive strength ranging from 25 to 200 MPa; j) a fiber-cement siding having a compressive strength ranging from 2 to 25 MPa; k) a slab having a compressive strength ranging from 10 to 100 MPa; l) acoustic barrier of at least 0.5 m in length; and m) insulation material.