石墨尾矿用作高速公路底基层

Kish slag using as highway subbase course

通过室内试验 ,探讨了石墨尾矿采用水泥稳定后用作高速公路底基层的可行性 .结果表明 ,该材料强度满足规范要求 ,可以用作高速公路底基层 ,其适宜的水泥配比为 6 % .由于材料初期的干缩变形较大 ,工程中做好初期养生 ,并注意基层施工的连续性十分重要 .

This paper discusses the feasibility of the highway subbase using kish slag that is stabilized with cement through the indoor experiment. This research results indicates that the strength of this material can conform to the specification, so that can be used as highway subbase course and the appropriate cement dosage is 6%. Noticing earlier curing and the continuity of base construction is very important because the Earlier drying shrinkage of this material is comparably grave.