BNQ 2622-126/2023

This standard applies to round sections of reinforced concrete or unreinforced concrete pipes intended for conveying sanitary wastewater or storm water or both by gravity flow. These pipes may also be used as culverts. This standard applies to reinforced concrete pipes and monolithic lateral connections of diameters from 200 mm to 3 600 mm, to unreinforced concrete pipes and monolithic lateral connections of diameters from 150 mm to 900 mm and to reinforced concrete or unreinforced concrete related parts. NOTES — 1 For requirements concerning the installation of concrete sewer pipes, it is recommended to refer to the standardized specification BNQ 1809-300. The document ASTM C1840/C1840M explains the interpretation of the different visual aspects to consider during the inspection of reinforced concrete or unreinforced concrete pipes already installed. 2 For requirements concerning trenchless installation, the main characteristics of reinforced concrete sewer pipes to be specified by the design engineer of the project are described in Annex D of this standard. 3 For requirements concerning the installation of culverts made of concrete pipes, it is recommended to refer to the Cahier des charges et devis généraux — Infrastructures routières — Construction et réparation of the Ministère des Transports du Québec. 4 It is recommended that the system design engineer takes into account the fact that, under certain circumstances, substances may be present in soils, storm water and sewage water, subjecting pipes to special exposure conditions. 5 Sanitary sewer pipes and storm sewer pipes are subject to special leak tightness requirements as defined in Chapter 7 of this standard. This standard was developed to serve as a reference document for conformity evaluation activities of specific products. NOTE — Conformity evaluation is defined as the systematic examination of the extent to which a product fulfils specified requirements.