| 摘要 |
<p>Provided is a water-permeable concrete composition of a granule excellent in freezing and thawing resistance as well as high surface strength to reduce damage or separation of the surface of the constructed concrete. The water-permeable concrete composition comprises: 1500-1800kg of granulated aggregates containing 85-100 wt% of aggregates with 13mm or less per 1m^3, 90-130kg of water, 260-370kg of cement, and a high-performance AE water-reducing agent at an amount of 0.7-2.5 wt% of the cement. The granulated aggregates contain 15-35 wt% of steel slag aggregates of 5mm or less in size, which are prepared by soaking the granulated aggregates in water for more than one month, followed by an aging process.</p> |
