Biomass waste materials as a set-retardation agent in cement or concrete
AssigneeUniversity of Louisville Research Foundation, Inc.
InventorsZhihui Sun, Noppadon Sathitsuksanoh, Chengqing Qi
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Abstract
A concrete mixture is provided. The mixture includes cement powder, a plant biomaterial in a solid form, wherein the plant biomaterial does not comprise ash, and concrete aggregate, wherein a ratio of cement powder to the biomaterial ranges from 10:1 to 100:1. Methods of controlling concrete setting by adding a plant biomaterial in a solid form to a concrete mixture are also provided.
Claims16
A concrete mixture, comprising:
- cement powder;
- a plant biomaterial in a solid form, wherein the plant biomaterial does not comprise ash and wherein the plant biomaterial has been treated with an alkaline extraction agent and washed with water after treatment with the alkaline extraction agent;
- and
- concrete aggregate,
- wherein a ratio of cement powder to the biomaterial ranges from 10:1 to 100:1.
A method of controlling concrete setting, comprising adding a plant biomaterial in a solid form to a concrete mixture, wherein the plant biomaterial does not comprise ash and wherein the plant biomaterial is treated with an alkaline extraction agent prior to being added to the concrete mixture and washed with water after being treated with the alkaline extraction agent.
Dependencies are inferred from the claim text.