Circular Precast Polymer-Concrete Manholes—Specification ACI SPEC-548.17-25 PDF Download
圆形预制聚合物混凝土人孔 -规范 ACI SPEC-548.17-25 PDF 下载
This Specification provides requirements for circular precast polymer-concrete manholes for use in sanitary and storm sewer systems. It includes ordering information, minimum physical and chemical requirements for the polymer concrete mixture, criteria for designing the manhole components, manufacturing and quality control requirements, and documentation to certify the adequacy of the design.

