| 摘要 |
FIELD: manufacture of building materials. ^ SUBSTANCE: composition for manufacturing reinforced polystyrene-concrete mix contains, kg/m3: Portland cement 160-170, foamed granulated polystyrene 15-17, basalt fiber 0.50-0.70, saponified wood tar, plasticizing supplement 0.4-0.5, polyacrylamide 0.40-0.60, lignopan B-2 0.35-0.50, and water 50-55. Reinforced polystyrene-concrete mix consists in mixing components of mix so that foamed polystyrene, basalt fiber, and additives introduced together with part of tempering water are mixed preliminarily, after which Portland cement is added at stirring, stirring is continued for 5-15 sec and, after addition of water, mix is stirred for further 25-40 sec. Articles are manufactured from polystyrene-concrete mix using volume vibration compaction to degree of compression 8-15 kg/cm2. ^ EFFECT: simplified mix preparation procedure, increased strength of articles, improved heat-insulation properties and frost resistance thereof, and reduced their vapor permeability and water absorption. ^ 9 cl, 3 dwg |
