Lightened plaster for construction, comprises water/plaster, rubber dust from out-of-use tires, and carbon fibers, and where the sum of all components is less than or equal to hundred percent

Abstract

Lightened plaster comprises a water/plaster ratio of 0.40-0.80, 5-60 wt.% rubber dust from out-of-use tires, and 0.1-5 wt.% carbon fibers, and where the sum of all components is less than or equal to 100%. USE - Lightened plaster used for the preparation of lightened and reinforced prefabricated materials in the form of plates and panels (claimed). DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for obtaining lightened plaster for construction, which involves: mixing in a mold the rubber powder of tires out of use with plaster in a ratio at a temperature between 21-25° C until obtaining a homogeneous mixture; adding carbon fibers to the mixture obtained in the previous stage at a temperature between 21-25° C until complete disintegration of the carbon fibers and obtaining a homogeneous mixture; and adding water fulfilling a water/plaster ratio of 0.40-0.80 and kneading in a kneader the mixture obtained for 50-70 seconds at a speed of between 135-150 min-1in rotation and at a speed between 50-75 min-1in planetary motion.