1.1 本指南介绍了将多层苯乙烯-丁二烯-苯乙烯（SBS）和无规聚丙烯（APP）改性沥青系统热焊接安装到新的、加固的现浇结构混凝土上的应用建议，该混凝土用作建筑物占用空间上的水平防水系统的一部分，该空间由单独的磨耗层覆盖。 1.2 就本指南而言，基底应结构良好，倾斜排水，能够承受薄膜和其他系统材料的重量，并满足当地建筑规范的要求。 同样，假设防水系统的所有部件都符合安装时可能生效的任何联邦、州和地方环境法规。伸缩缝、隔热层、排水层、滤板、覆盖层和磨损表面不在本指南的范围内。 1.3 以国际单位制或英寸磅单位表示的数值应单独视为标准。每个系统中规定的值可能不是完全相等的； 因此，每个系统应独立使用。将两个系统的值结合起来可能会导致不符合标准。 1.4 本标准并不旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.5 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。 ====意义和用途====== 4.1 本指南提供了作为水平防水系统一部分的热焊接改性沥青防水系统应用的一般程序、信息、指南和注意事项。 4.2 本指南并非包罗万象，仅用于补充设计者和系统制造商的详细说明。 4.3 本指南中提及的水平桥面或基底为钢筋现浇结构混凝土。

1.1 This guide presents application recommendations for the heat welding installation of multi-ply Styrene Butadiene Styrene (SBS) and Atactic Polypropylene (APP) modified bituminous systems to new, reinforced, cast-in-place structural concrete used as part of a horizontal waterproofing system over occupied spaces of buildings where covered by a separate wearing course. 1.2 For the purpose of this guide, the substrate shall be structurally sound, sloped to drain, able to accept the weight of the membrane and other system materials, and meet the local building code requirements. Similarly, all components of the waterproofing system are assumed to comply with any federal, state, and local environmental regulations that may be in effect at the time of installation. Expansion joints, insulation, drainage layers, filter sheets, overburden, and the wearing surfaces are beyond the scope of this guide. 1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 4.1 This guide provides general procedures, information, guidelines, and precautions for the application of heat welded modified bituminous waterproofing systems used as part of a horizontal waterproofing system. 4.2 This guide is not all-inclusive and is intended only to supplement detailed instructions from designers and system manufacturers. 4.3 The horizontal deck or substrate referred to in this guide is reinforced cast-in-place structural concrete.