MIXTURE FOR MAKING HEAT-INSULATION BOARDS

摘要

FIELD: chemistry.SUBSTANCE: invention relates to production of construction materials. The mixture for making heat-insulation boards contains the following, pts.wt: water 340-360; waste paper 260-300; phosphogypsum 50-60; urea-formaldehyde resin 4-6; starch 4-6; asbestos fibre cut into 5-50 mm pieces 6-10.EFFECT: high strength of heat-insulation boards.1 tbl