DBJ43/T373-2021 湖南省建筑防水工程技术标准（发布稿）

UDC
湖南省工程建设地方标准
DBJ 43/T 373-2021
P 备案号 JXXXXX-2021
湖南省建筑防水工程技术标准
Technical specification for building waterproof engineeringin Hunan Province
2021-06-11 发布 2021-11-01 实施
湖南省住房和城乡建设厅 发布

目 次 1 总则·········································································1

2 术语·········································································2

3 基本规定···································································4

4 防水材料···································································5

5 设计·········································································9
5.1 一般规定 ···························································9
5.2 屋面防水工程 ····················································10
5.3 地下防水工程 ····················································18
5.4 外墙防水工程 ····················································32
5.5 室内防水工程 ····················································36
5.6 装配式外墙防水工程 ···········································41
5.7 特殊部位防水工程 ··············································46

6 施工········································································48
6.1 一般规定 ··························································48
6.2 屋面防水工程 ····················································51
6.3 地下防水工程 ····················································53
6.4 外墙防水工程 ····················································57

6.5 室内防水工程 ····················································59
6.6 装配式外墙防水工程············································60
6.7 安全与环保 ·······················································62

7 检验和验收·······························································64
7.1 一般规定 ··························································64
7.2 基层 ··································································66
7.3 卷材防水层 ·······················································67
7.4 涂膜防水层 ·······················································68
7.5 砂浆防水层 ·······················································69
7.6 透汽防水垫层 ····················································71
7.7 接缝密封 ··························································72

8 使用与维护·······························································74
附录 A 防水材料进场抽样检验·········································75
附录 B 防水层设计方案选用············································78
本标准用词说明······························································87
引用标准名录·································································88
附：条文说明·································································91

1 总则
1.0.1 为提高湖南省建筑防水工程技术水平，保证工程质量，做到经济合理、安全适用、环保节能，制定本标准。
1.0.2 本标准适用于湖南省工业与民用建筑防水工程的设计、施工、验收，以及交付后的使用与维护。 1.0.3 建筑防水工程的设计、施工、验收、使用与维护除应符合本标准外，尚应符合国家、行业和地方现行有关标准的规定。

2 术语
2.0.1 建筑防水工程 building waterproof engineering
保证建筑工程的结构不受水侵袭、内部空间不受水危害的一项分部工程。涉及到建筑工程的地下室、屋面、外墙、室内等诸多部位，以及材料、设计、施工、管理等各个方面。
2.0.2 材料相容性 material compatibility
相邻两种材料之间互不产生有害的物理和化学作用的性能。
2.0.3 复合防水层 compound waterproof layer
由彼此相容的卷材和涂料组合而成的防水层。
2.0.4 湿铺防水卷材 wet installed waterproofing sheet
采用水泥净浆或水泥砂浆粘结的具有自粘性的防水卷材。
2.0.5 预铺防水卷材 pre-applied waterproofing sheet
以塑料、橡胶、沥青为主体材料，一面有自粘胶，胶表面采用不粘或减粘材料，与后浇混凝土粘结的防水卷材。
2.0.6 防水涂膜 waterproof coating
采用防水涂料通过现场刷、刮、抹、喷于基层，经固化后形成的具有防水能力和一定坚韧性的涂膜。
2.0.7 透汽防水垫层 water resistive & vapour permeance barriers
具有一定压差状态下水蒸气透过性能，又能阻止一定压差的液态水通过，可用于屋面和墙体的非外露辅助防水材料，也称防水透汽膜。
2.0.8 非固化橡胶沥青防水涂料 non-curable rubber modified asphalt Waterproof coating
以橡胶、沥青为主要原材料，加入助剂混合制成的在应用状态下长期保持黏性膏状体的防水涂料。
2.0.9 诱导缝 inducing joint
通过适当减小混凝土截面或减小钢筋对混凝土约束等方法，在混凝土结构中预先设置的诱导开裂的薄弱结构部位。

投稿会员：芳华