| 摘要 |
FIELD: production of concrete and ferroconcrete, namely processes for producing concrete mass of pavements of automobile roads, tram rail tracks and transporting paths inside factories and plants. ^ SUBSTANCE: method comprises steps of placing concrete mixture by three layers containing different components into form with its front layer turned downwards; as molding subjecting said mixture to vibration compaction at different vibration characteristics. According to invention in the result of preparing rational compositions of concrete mixtures, its preparation, placing and compaction, it is achieved optimal relation of solid, liquid and gaseous phases in concrete mixture. It provides its strength and increased useful life period of concrete and ferroconcrete products. Selected three-layer structure of concrete mass in products provides accelerated by 1.5 - 2 times period of product solidification in air due to thermostat-resonance temperature effect of self-heating of concrete mixture. Manufacturing line for making concrete and ferroconcrete products includes successively arranged and technologically matched equipment units for preparing composition type binder, concrete mixture and for vibration compaction of products. ^ EFFECT: improved strength, cold resistance and operational characteristics of concrete and ferroconcrete products. ^ 2 cl, 1 tbl, 2 ex |
