ASTM C0139-25
Standard Specification for Dry-Cast Concrete Masonry Units for Construction of Catch Basins and Manholes
| Označení normy: | ASTM C0139-25 |
| Vydáno: | 01.07.2025 |
| Status: | Active |
| Počet stran: | 3 |
| Sekce: | 04.05 |
| Označení: | catch basins; concrete masonry units; dry-cast; hydraulic cement; manholes; masonry units; |
| ASTM označení: | ASTM C139 |
| Nahrazuje: | C0139-23 |
This specification covers solid precast segmental concrete masonry units made from hydraulic cement, water, and suitable mineral aggregates, with or without the inclusion of other materials. The units are intended for use in the construction of catch basins and manholes. All units shall be sound and free of cracks or other defects that interfere with the proper placing of the unit.
1.1 This specification covers dry-cast solid precast segmental concrete masonry units machine-made from hydraulic cement, water, and suitable mineral aggregates, with or without the inclusion of other materials. The units are intended for use in the construction of catch basins and manholes.
1.2 The text of this standard referenced notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.
1.3 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.
1.4 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.