Additive for the preparation of ecological permeable concretes with high compression, bending and abrasion resistance, and production process

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 dispersing agents and a humectant;
• b) adding an anionic surfactant;
• c) adding hydroxypropylethylcellulose or hydroxypropylmethylcellulose;
• d) adding a highly reactive calcinated non crystalline silica aluminate;
• all the steps mentioned above are performed by thoroughly mixing the ingredients when added in order to obtain a homogeneous, and smooth mixture.

A process for the elaboration of an ecological permeable concrete having high compression, bending and abrasion resistance, comprising the steps of:

• a) providing an amount from about 50 to 110 liters of water in a container;
• b) adding from about 1.700 kg to 7.300 kg of dispersing agents;
• c) adding from about 0.100 kg to 0.600 kg of a humectant agent;
• d) adding from about 0.030 kg to 0.100 kg of a bactericidal agent and from about 0.030 kg to 0.100 kg of an antifoaming agent;
• e) adding from 0 to about 1.100 kg of hydroxypropylethyl cellulose or hydroxypropylmethyl cellulose;
• f) adding from about 4.000 kg to 18.000 kg of a non crystalline silica aluminate to the mixture;
• g) adding from about 120 kg to 360 kg of cement;
• and
• h) adding 1 m3 of a sandless stone aggregate;
• wherein
• steps a) through h) are performed at room temperature, and mixing is performed constantly until a homogeneous and smooth mixture is obtained which, after setting, has an f′c (compression resistance factor) ranging between 100 kg/cm2 and 300 kg/cm2.