Method for production of a clay powder and a method for soil improvement with the clay powder

Abstract

A method for production of a modified clay powder comprises the steps of: a) acquiring batch clay, and b) forming a modified clay powder with an average particle size of between 2 nm and 150 nm. The main groups of clays include kaolinite, montmorillonite, bentonite, smectite, and illite. A method for improving the stability of a soil sample comprises a steps of: a) acquiring the soil sample, b) acquiring a clay, c) forming a clay powder (nano-clay as nano green-additive) with an average particle size of between 2 nm and 150 nm, optionally preparing a suspension of the nano-clay in water, d) mixing the clay powder or the suspension of the clay powder in water with the soil sample in a weight ratio of between 1:100 and 1:1 of the clay powder to the soil sample, respectively, e) applying the mixture obtained in step d) to the required construction site, f) forming the mixture at the construction site in accordance with a predetermined construction project until a structure of predetermined dimensions is obtained, g) exposing the structure obtained in step f) to an amount of water for the curing time. Applying the mixture obtained in step e) to the predetermined construction site can be realized with a method of spraying.

Dependencies are inferred from the claim text.