Additive for the preparation of ecological permeable concretes with high compression, bending and abrasion resistance, and production process
OwnerNestor De Buen-Unna, Luis German Guevara-Nieto +1inventors
InventorsNestor De Buen-Unna, Luis German Guevara-Nieto, Jaime Grau-Genesias
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Abstract
An additive for elaboration of ecological permeable concretes. The additive containing from about 24.5% to 28.2% by weight of a mixture made of dispersing agents, from about 3.3% to 3.8% by weight of a humectant agent, from 0 to about 1% by weight of a non ionic surfactant, from 0 to about 3% by weight basis of a bactericidal agent, from about 3.3% to 3.8% by weight of hydroxypropylethyl or methylcellulose from 0 to about 0.3% by weight of an antifoaming agent and from about 55.8% to 64.2% by weight of a highly reactive non-crystalline calcinated silica aluminant.
Claims5
An additive for elaboration of ecological permeable concretes having high compression, bending and abrasion resistance, comprising:
- from about 24.5% to 28.2% by weight of a mixture made of dispersing agents;
- from about 3.3% to 3.8% by weight of a humectant agent;
- from 0 to about 1% by weight of a non ionic surfactant;
- from 0 to about 1.1% of an anionic surfactant;
- from 0 to about 3% by weight basis of a bactericidal agent;
- from about 3.3% to 3.8% by weight of hydroxypropylethyl or methylcellulose, from 0 to about 0.3% by weight of an antifoaming agent;
- and from about 55.8% to 64.2% by weight of a highly reactive non crystalline calcinated silica aluminate.
A process for obtaining a solid additive formulation for the elaboration of an ecological permeable concrete having a high compression, bending and abrasion, comprising the steps of:
- a) mixing a mixture of from about 24.5 to 28.2% by weight of dispersing agents and from about 3.3 to 3.8% by weight of a humectant;
- b) adding from 0 to about 1.1% by weight of an anionic surfactant;
- c) adding from about 3.3 to about 3.8 by weight of hydroxypropylethylcellulose or hydroxypropylmethylcellulose;
- d) adding from about 55.8% to 64.2% by weight of a highly reactive calcinated non crystalline silica aluminate;
- wherein the above ranges are based on the total weight of the additive formulation, and wherein all the steps mentioned above are performed by thoroughly mixing the ingredients when added in order to obtain a homogeneous mixture.
Dependencies are inferred from the claim text.