FIELD: building materials.
SUBSTANCE: group of inventions can be used for the manufacture of products from porous wood concrete, including complex shapes, intended for the construction of residential, public, industrial and agricultural buildings. The technical result consists in reducing the water absorption of products from porous wood concrete to 12-15% with a low density of products of 450-550 kg/m3, high compressive strength of products of 3.5 MPa, and low thermal conductivity of products of 0.08-0.12 W/m°C. Raw mixture for the manufacture of products from porous wood concrete, containing aggregate of plant origin, cement, foaming agent and water. As a filler of plant origin, it contains coniferous wood chips, fire or husks of agricultural crops, PB2000 as a foaming agent and additionally contains a mineral additive of carbonate rocks, Carbonic or Cementon hyperplasticizer, Dairen or Axilat or Acronal redispersible polymer powder, calcium chloride, aluminum sulfate at a certain ratio of components. Also described is a method for manufacturing products from a raw mixture.
EFFECT: reducing the water absorption of products from porous wood concrete to 12-15% with a low density of products of 450-550 kg/m3, high compressive strength of products of 3.5 MPa, and low thermal conductivity of products of 0.08-0.12 W/m°C.
6 cl, 2 ex
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Authors
Dates
2023-05-24—Published
2022-10-03—Filed