ASTM International

Standard Practice for Installation of Underground Circular Precast Concrete Manhole Structures
 N C1821/C1821M

Annotation

This practice covers the procedures to be followed in the planning, site preparation, installation, testing and backfilling of underground vertical reinforced circular precast concrete manholes and components manufactured in accordance with Specification C478 (C478M) and used in sewer, drainage, and water works.

Concrete pipe and box culverts are not covered under this practice. Also, precast concrete utility structures covered in Specification C858 are excluded from this practice.

Units—The values stated in either SI units or inchpound 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.

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.

Автоматический перевод:

Общепринятая практика для установки подземных круговых сборных конкретных структур кабельного колодца

Эта практика покрывает процедуры, которые будут сопровождаться в планировании, подготовке к сайту, установке, тестировании и заделывании подземных вертикальных укрепленных круговых сборных конкретных кабельных колодцев и компонентов, произведенных в соответствии со Спецификацией C478 (C478M), и использовала в коллекторе, дренаже и водных работах.