1.1本规程涵盖了使用化学灌浆密封人孔所需的拟议材料选择、安装技术和检查。检修孔或存在主动泄漏的检修孔段应进行维修。待灌浆的人孔为砖、砌块、现浇混凝土、预制混凝土或玻璃纤维结构。有主动泄漏的人孔或部分人孔将由工程师、业主指定 ’ s代表或授权检查员进行人孔灌浆。 1.2承包商应负责提供所有劳动力、监督、材料、设备和检验- 根据合同文件要求，完成人孔缺陷的化学灌浆。 1.3灌浆过程中使用的材料、添加剂、混合比和程序应符合制造商的要求 ’ s建议，并应适用于应用。 1.4以英寸-磅为单位的数值应视为标准值。括号中给出的值是到国际单位制的数学转换，仅供参考，不被视为标准值。 1.5 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。 ====意义和用途====== 本规程用于指导在密封下水道人孔的泄漏、裂缝和渗透周围时安装化学灌浆。协助下水道业主和工程师、业主 ’ 安装方法规范和承包商在安装人孔密封用化学灌浆时参考的承包商代表或授权检查员。

1.1 This practice covers proposed selection of materials, installation techniques, and inspection required for sealing manholes using chemical grout. Manholes or sections of manholes with active leaks shall be repaired. Manholes to be grouted are of brick, block, cast-in-place concrete, precast concrete, or fiberglass construction. Manholes or sections of manholes with active leaks will be designated by the engineer, owner ’ s representative, or authorized inspector, for manhole grouting. 1.2 The contractor shall be responsible for furnishing all labor, supervision, materials, equipment, and inspection follow-up required for the completion of chemical grouting of manhole defects in accordance with the contract documents. 1.3 Materials, additives, mixture ratios, and procedures utilized for the grouting process shall be in accordance with manufacturer ’ s recommendations and shall be appropriate for the application. 1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.5 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 and health practices and determine the applicability of regulatory limitations prior to use. ====== Significance And Use ====== This practice is used as a guide for the installation of chemical grout in the practice of sealing sewer manholes from leaks, cracks, and around penetrations. It is attended to assist sewer owners and engineer, owner ’ s representative, or authorized inspectors for installation method specification and for contractors to refer to during installations of chemical grout for manhole sealing.