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Wear-resistant concrete of open canal of hydropower station
Project Overview:
The Yellow River yangqu hydropower station is located at the junction of xinghai county, hainan province, qinghai province, is a large power generation hydropower project, is the Yellow River longyangxia hydropower station upstream river planning cascade power station "zha hydropower station, banduo hydropower station and yangqu hydropower station" three planning cascade power station of the next level, is also the qinghai province "twelfth five-year" planning during the key project.The dam basin of Yangqu Hydropower Station covers an area of 12,326 square kilometers, with an average annual flow of 625 cubic meters / s, an installed capacity of 1,200 M W, an annual average power generation of 4.9 billion kwh, and the maximum dam height of 150 meters, with a total investment of 5.8 billion yuan.The concrete of the open channel outlet of Yangqu Hydropower Station is easy to be affected by water erosion, so the concrete surface layer of the open channel is enhanced to improve the anti-wear strength.
construction procedure:
First time sprinkling wetting base surface first time (150ml / m2) second time sprinkling second time (100ml / m2) third time sprinkling wet maintenance for 3 days
Effect evaluation:
The intensity was increased by 3MPa after 7 days, 5MPa after 14 days, and 7MPa after 28 days.