Earth and rockfill concrete core wall asphalt concrete and paving method thereof

Abstract

Earth and rockfill concrete core wall asphalt concrete and a paving method thereof break through the limitation to the maximal aperture of core wall asphalt concrete coarse aggregate in the prior art; the specific paving method is used for assisting, so the machining efficiency of coarse aggregate is greatly improved, the use level of asphalt is reduced and the engineering building and construction cost is reduced.

Description

technical field [0001] The invention relates to an asphalt concrete for an anti-seepage core wall of an earth-rock dam, and specifically relates to a paving method for the asphalt concrete with a maximum aggregate particle size of 40 mm. Background technique [0002] Due to the many advantages and excellent characteristics of asphalt concrete, more and more dam types use asphalt concrete as the anti-seepage core wall in the design of earth-rock dams. At the same time, it also solves the difficult problem of obtaining materials for the anti-seepage core wall of earth-rock dams in the west. my country's earth-rock dams have used asphalt concrete as the anti-seepage core wall for a short period of time, and there is little construction experience. When the anti-seepage core wall of earth-rock dams began to use asphalt concrete, the technical specifications for asphalt concrete pavement have been used until now. For a long time, the asphalt concrete core wall The maximum particle...

AI Technical Summary

Problems solved by technology

Coarse aggregate with a maximum particle size of 20mm or less has a small particle size, which leads to low processing efficiency, high production cost of coarse aggregate, and high asphalt content (the current asphalt content is 6.5% to 7.1%), which increases the engineering cost. cost