ICS 03.220.20 CCS P 66 45 广 西 壮 族 自 治 区 地 方 标 准 DB45/T 2718—2023 高速公路沥青路面预防养护技术规范 Technical specification for preventive maintenance of expressway asphalt pavement 2023 - 08 - 10发布 2023 - 09 - 30实施 广西壮族自治区市场监督管理局 发布 DB45/T 2718 —2023 I 目次 前言 ................................ ................................ ................ III 1 范围 ................................ ................................ ............... 1 2 规范性引用文件 ................................ ................................ ..... 1 3 术语和定义 ................................ ................................ ......... 1 4 符号和缩略语 ................................ ................................ ....... 2 5 总体要求 ................................ ................................ ........... 2 6 路况调查及病害处理 ................................ ................................ . 3 路况调查与评价 ................................ ................................ . 3 6.1 预防养护路面病害预处理 ................................ ......................... 3 6.2 7 预防养护方案 ................................ ................................ ....... 4 一般规定 ................................ ................................ ....... 4 7.1 预防养护时机 ................................ ................................ ... 4 7.2 预防养护方案 ................................ ................................ ... 5 7.3 8 微表处及冷拌冷铺超薄磨耗层 ................................ ......................... 5 一般规定 ................................ ................................ ....... 5 8.1 材料 ................................ ................................ ........... 6 8.2 混合料设计 ................................ ................................ ..... 6 8.3 施工准备 ................................ ................................ ....... 8 8.4 施工工艺 ................................ ................................ ....... 8 8.5 施工质量控制 ................................ ................................ ... 9 8.6 9 罩面 ................................ ................................ ............... 9 一般规定 ................................ ................................ ....... 9 9.1 材料 ................................ ................................ .......... 10 9.2 混合料设计 ................................ ................................ .... 10 9.3 施工准备 ................................ ................................ ...... 11 9.4 施工工艺 ................................ ................................ ...... 12 9.5 施工质量控制 ................................ ................................ .. 12 9.6 10 复合封层、封层罩面 ................................ ............................... 13 一般规定 ................................ ................................ ..... 13 10.1 材料 ................................ ................................ ......... 13 10.2 材料洒（撒）布 率 ................................ ............................. 13 10.3 施工准备 ................................ ................................ ..... 14 10.4 施工工艺 ................................ ................................ ..... 14 10.5 施工质量控制 ................................ ................................ . 14 10.6 11 预防养护验收及评价 ................................ ............................... 15