罗湾大坝防渗加固沥青混凝土材料试验研究与应用

Research and Application of Asphalt Concrete Used as Impervious Matereal in Luowan Dam

鉴于罗湾大坝的安全状况,2001年确定进行一期沥青混凝土防渗加固处理。而这个防渗加固方案能否成功,关键就在于能否合理选择沥青混凝土材料。通过室内配合比试验和现场配合比调整试验,选择出了满足设计要求的沥青混凝土。施工完成后,进行了现场测试,测试结果表明,所选沥青混凝土材料合理,施工质量良好。

Because of the safety conditions of Luowan Dam, impervious ness has been adopted by using asphalt concrete in stage i since 2001. Whether this scheme rs successful or not shall be under the condition that the reasonable choice of asphalt concrete materialand mix. According to the technical requirements of the impervious dependon, indoor and on-site mix tests were applied for choosing the asphalt concrete material that could meet the design requirements. The results drawn from the on-site testing after construction indicated that the chosen asphalt concrete material was reasonable and the workmanship was fine. The impervious ness construction scheme of the asphalt concrete was effective and feasible.