METHOD OF PREPARING LIGHT-WEIGHT CONCRETE BASED ON WOOD FILLER Russian patent published in 2001 - IPC

FIELD: building materials industry, more particularly erection of building structures for residential and industrial buildings. SUBSTANCE: method comprises adding components to concrete mix during stirring of mix. Wood filler from chips of mixed varieties is first wetted with 1/4 portion of prepared ferric chloride solution and finely divided lime powder and 1/2 portion of ferric chloride are then added and cement and remaining ferric chloride solution are subsequently added. Method makes if possible to increase strength of light-weight concrete of 1 and 28 days old by 37 and 13 times, respectively without using external energy sources, and simplify technology of making concrete. EFFECT: more efficient preparation method. 3 cl, 1 ex, 1 tbl