FIELD: construction.
SUBSTANCE: invention relates to the industry of construction materials, in particular to the production of articles (blocks, wall stones) from wood-cement compositions, and can be used in the construction of buildings for civil, public and industrial purposes. Method of making wood concrete involves mixing with cement wood aggregate, held for 18–22 minutes in 20% aqueous solution of silica sol with particle size of 20–40 nm, with subsequent moulding and hardening of products. Prior to aging, wood aggregate is sieved through a sieve with mesh size of 5 mm, cement of “ЦЕМ” I 42.5 H grade is used, pre-mixed with micro-filler, that is microsilica “МК-85” at ratio of 3:1 and hardening of products is carried out in a drying cabinet at temperature of 38 °C to constant weight.
EFFECT: higher strength of wood concrete.
1 cl, 1 tbl, 1 ex
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