METHOD TO MANUFACTURE CONSTRUCTION PRODUCTS FROM FOAM CONCRETE

摘要

FIELD: construction.SUBSTANCE: method to manufacture construction products from foam concrete includes preparation of a foam concrete mix from portland cement, fractionated quartz sand, a foaming agent and water in a turbulent mixer, loading of the produced mix into moulds from dielectric material, on the side surfaces of which there are metal electrodes, exposure of the foam concrete mix to the AC electric field of specified frequency and intensity. Processing of the freshly moulded products with electric field is carried out at the field intensity of 1.5-4.5 V/cm for 0.5-5 min. Efficiency of foam concrete mix exposure to the AC electric field depends on grain-size composition of quartz sand and is maximum when sand fractions of 0.16-0.315 mm are used.EFFECT: improvement of strength characteristics of foam concrete.3 cl, 6 tbl