WO 2019/157593 A1

Desert sand and filamentous cellulose in concrete and mortar

(22) 12.02.2019

(43) 22.08.2019

(57) The present provides a concrete and mortar mix and composition thereof with poor quality sand such as desert sand, hydraulic binder (cement) and filamentous cellulose, where the desert sand/spherical sand replaces conventional concrete river sands. The present disclosure also relates a filamentous cellulose, such as, cellulose nano filaments (CF), cellulose nano filaments, cellulose nanofibrils (CNF) and microfibrillated cellulose (MFC) as a concrete/mortar and sand adhesion additive with hydraulic binder (cement), and to a method of making the concrete. This method also relates to a method to prevent the sliding of individual sand grains against one another and therefor similarly contributes to the stabilization of the building materials.

(71) Fpinnovations, 570, boul. St-Jean, Pointe-Claire, Quebec H9R 3J9 (CA)

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