Carbonation-resistant cementitious blend containing olive waste
AssigneeKing Fahd University of Petroleum and Minerals
InventorsSalaheldin Elkatatny, Ahmed Abdulhamid Mahmoud
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Abstract
A carbonation-resistant cementitious blend containing cement, an expandable agent present, a dispersion agent, a fluid loss additive, a defoamer, and an olive waste. Concrete samples made therefrom and methods of producing such concrete samples are also specified. The addition of olive waste provides enhanced durability (carbonation resistance) and maintains mechanical strength (e.g. compressive strength, tensile strength) after exposure to CO2 and/or brine. The resulting concretes are suitable cementing material for oil and gas wells as well as wellbores for geologic carbon sequestration.
Claims20
A carbonation-resistant cementitious blend comprising:
- cement;
- silica flour present in an amount of 30 to 40% by weight of cement (% BWOC);
- an expandable agent present in an amount of 0.4 to 2% BWOC;
- a dispersion agent present in an amount of 0.5 to 1.0% BWOC;
- a fluid loss additive present in an amount of 0.5 to 1.0% BWOC;
- a defoamer present in an amount of 1×10−8 to 1×10−6% BWOC;
- and
- an olive waste present in an amount of 0.01 to 0.75% BWOC.
Dependencies are inferred from the claim text.