Cement and concrete with reinforced material

Abstract

Provided are compositions, methods and systems including cementitious compositions and reinforcing materials wherein the cementitious composition comprises a metastable component.

1 . A composition comprising:
 a cementitious composition wherein the cementitious composition comprises a metastable component selected from the group consisting of vaterite, amorphous calcium carbonate, and combination thereof, and   a reinforcing material wherein the reinforcing material is selected from the group consisting of aluminum, glass fiber, carbon fiber, ceramics, polymer, grass, grass product, wood product, fiber-reinforced plastic, epoxy coated rebar, titanium cladding treated rebar, chrome plated/coated rebar, nickel plated/coated rebar, cobalt-chromium coated rebar, polycarbonate reinforcing members, polycarbonate fiber, poly(vinyl chloride) (PVC) reinforcing members, PVC fiber, polypropylene, cellulose, polyvinyl alcohol, bamboo, and combination thereof,   wherein the cementitious composition has a wet paste pH of less than 12.   
     
     
         2 . (canceled) 
     
     
         3 . The composition of  claim 1 , wherein the cementitious composition has a δ 13 C value less than −12.0%. 
     
     
         4 . The composition of  claim 1 , wherein the cementitious composition comprises at least 50 wt % vaterite. 
     
     
         5 . The composition of  claim 1 , wherein the composition comprises more than 0.15% water-soluble chloride ion by weight of cement in the composition. 
     
     
         6 . The composition of  claim 1 , wherein the reinforcing material does not exhibit changes in mechanical properties selected from the group consisting of elastic modulus, tensile strength, and yield strength, when exposed to water soluble chloride repeatedly or for an extended period of time. 
     
     
         7 - 10 . (canceled) 
     
     
         11 . The composition of  claim 1 , wherein at least 1% by volume of the reinforcing material is aligned in the same direction. 
     
     
         12 . The composition of  claim 1 , wherein the cementitious composition comprises carbonate mineral wherein the carbon in the carbonate mineral is derived in whole or in part from carbon dioxide removed from an industrial waste stream. 
     
     
         13 . The composition of  claim 1 , wherein the composition meets the requirements for durability, strength, serviceability, flexure and axial loads, and/or shear and torsion, in accordance with structural concrete building code. 
     
     
         14 . The composition of  claim 1 , wherein the reinforcing material has a yield strength of at least 420 MPa. 
     
     
         15 . The composition of  claim 1 , wherein the reinforcing material has an elastic modulus of 25 GPa to 250 GPa. 
     
     
         16 . The composition of  claim 1 , wherein the composition is suitable for use in structural building applications. 
     
     
         17 . The composition of  claim 1 , further comprising an aggregate. 
     
     
         18 - 30 . (canceled) 
     
     
         31 . The composition of  claim 1 , wherein the cementitious composition is a particulate composition with an average particle size of 0.1-100 microns. 
     
     
         32 . The composition of  claim 1 , wherein the composition comprises between 0.1-10 wt % reinforced material. 
     
     
         33 . The composition of  claim 1 , wherein the reinforced material is in a shape of bars or rebars, wires, threads, grids, plates, fibers, metal meshes, cages, whiskers, or combinations thereof. 
     
     
         34 . The composition of  claim 1 , wherein the composition after setting and hardening forms a formed building material selected from the group consisting of masonry unit, brick, blocks, tile, construction panel, conduit, basin, beam, column, slab, acoustic barrier, insulation material, and combination thereof. 
     
     
         35 . The composition of  claim 1 , wherein the composition after setting, and hardening has a compressive strength of at least 14 MPa.