2 2 Two layers concrete pavement device for normal concrete and high performance concrete using two layers concrete pavement of lower layer and the upper layer

摘要

The present invention relates to a concrete slump of 40 mm or less produced by a single plant and forming a lower layer of a two-layer concrete pavement, a slump of a slump of 40 mm or less and a fluidizing agent added thereto, After the mixed concrete with the mixed material is formed, the high-performance concrete in which the air contained in the mixed concrete dissipates is discharged to the upper surface of the lower layer to a thickness smaller than the thickness of the lower layer to form the lower layer of the two- Layer concrete paving method for forming an upper layer.