Preparation of graphene nanosheets-based concrete additive
AssigneeNanospan India Private Limited
InventorsVenkata Ramana Gedela, Ravi Nuguru, Chinthakuntla Ashok, Edulakanti Sai Ram, Jella Praveen Kumar
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Abstract
A method for preparing a graphene-nanosheets based concrete additive is disclosed. The method comprises mixing Polycarboxylate ether A (PCE-A) to a retarder-based salt solution to obtain a retarder-based Polycarboxylate ether A solution. In the next step, a retarder based PCE solution is obtained by adding Polycarboxylate ether B to the retarder based Polycarboxylate ether A solution to which graphene nanosheets are added. Further, an air entrainment agent is added to graphene nanosheets based PCE solution and further mixed to obtain the graphene nanosheets based concrete additive.
Claims17
A method for preparing graphene-nanosheets based concrete additive, the method comprising:
- a) mixing Polycarboxylate ether-A (PCE-A) to a retarder-based salt solution to obtain a retarder-based Polycarboxylate ether-A (PCE-A) solution;
- b) adding Polycarboxylate ether-B (PCE-B) to the retarder-based Polycarboxylate ether-A (PCE-A) solution to obtain a retarder-based Polycarboxylate ether (PCE) solution;
- c) mixing graphene-nanosheets to the retarder-based Polycarboxylate ether (PCE) solution to obtain graphene-nanosheets based PCE solution;
- and
- d) adding at least one air entrainment agent to the graphene-nanosheets based PCE solution obtained at step c to obtain the graphene-nanosheets based concrete additive, wherein the retarder-based salt solution is obtained by mixing at least one retarder with water, wherein the weight percentage of the retarder is chosen between 3% and 5% of the total amount of water.
An additive for concrete comprising:
- Polycarboxylate ether-A (PCE-A), Polycarboxylate ether-B (PCE-B), graphene-nanosheets, and at least one retarder, wherein:
- at least one retarder is mixed with water to obtain a retarder-based salt solution, wherein the weight percentage of the retarder is chosen between 3% and 5% of total amount of water;
- the Polycarboxylate ether-A (PCE-A) is mixed with the retarder-based salt solution to obtain a retarder-based Polycarboxylate ether-A (PCE-A) solution;
- the Polycarboxylate ether-B (PCE-B) is added with the retarder-based Polycarboxylate ether-A (PCE-A) solution to obtain a retarder-based Polycarboxylate ether (PCE) solution;
- and
- the graphene-nanosheets are mixed with the retarder-based Polycarboxylate ether (PCE) solution to obtain graphene-nanosheets based PCE solution.
Dependencies are inferred from the claim text.