CO2 impregnated concrete
AssigneeScio-Tech, LLC
InventorRobert George Richardson
Life of this patent
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Abstract
Concrete made using the protocol described herein converts more of the available calcium hydroxide (Ca(OH)2) into calcium carbonate (CaCO3) and distributes it more thoroughly throughout the concrete mixture by converting it into calcium bicarbonate (Ca(HCO3)2) by adjusting the pH of the hydrating liquid and then deliberately adjusting the pH of the hydrating liquid again when precipitation of the CaCO3 from the hydration liquid is desired to more uniformly coat the materials used in a concrete mix. This process creates more CaCO3 in concrete than current methods on the market and that has been demonstrated to increase the structural and chemical properties of the concrete.
Claims11
A method of increasing the strength and integrity of a concrete mix, comprising the steps of:
- partially dissolving a predetermined quantity of a clean and chipped polymer;
- cooling the polymer and adding sodium hydroxide (NaOH) in methanol (CH3OH) to produce dimethyl terephthalate DMT (C6H4(COOCH3)2) and ethylene glycol EG (HOCH2CH2OH);
- air-drying the polymer;
- introducing the partially dissolved polymer to the DMT and EG monomers, along with a catalyst and a non-reactive porogen solvent to create a re-formed polymer having a surface area of 101 to 103 m2/g;
- rinsing the polymer in H2O;
- bathing the polymer with agitation in a calcium bicarbonate (Ca(HCO3)2) solution at a pH of between 7 and 10;
- and
- air-drying the polymer after the calcium bicarbonate bath;
- and
- adding the polymer to the concrete mix.
Dependencies are inferred from the claim text.