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Abstract

This Uganda Standard specifies requirements and describes test methods for precast concrete manholes of circular, rectangular (with or without chamfered or rounded corners) or elliptical cross-section, unreinforced, steel fibre and reinforced, with nominal sizes or nominal lengths not exceeding DN1250 or LN 1250, respectively. The intended use of EAS 418 is to permit access to, and to allow aeration of, drain or sewer systems for the conveyance of sewage, rainwater and surface water under gravity or occasionally at low head of pressure, mainly installed in areas subjected to vehicular and/or pedestrian traffic. This part of US EAS 426 specifies complementary requirements to those in US EAS 418 for unreinforced and reinforced concrete manholes of circular and rectangular cross-section (with or without chamfered or rounded corners), as provided for in that European Standard, i.e. units with nominal sizes or nominal lengths not exceeding DN 1250 or LN 1250, respectively. Full requirements for unreinforced and reinforced concrete manholes with nominal sizes greater than DN 1250, but not exceeding DN 3000, are also specified. The manholes are intended to be installed in carriageways of roads (including pedestrian streets), hard shoulders and parking areas for all types of road vehicles, though provision is also made for units subject to lighter traffic loading. Requirements for soakaways, landing slabs and corbel slabs are also specified. Steel fibre concrete manholes are not manufactured in the United Kingdom and so have been excluded from this part of US EAS 426. EN 752-2, -3 and -4, EN 1295-1 and EN 1610 deal with the planning, design, installation and testing of drains and sewers. This standard was PUBLISHED on 2020-06-16

More Details

Price	UGX 25,000/=
Category	ENGINEERING AND CONSTRUCTION STANDARDS
Status	Voluntary
Format	PDF
TC	UNBS/TC 3-Building and Construction Standards
ICS	91.140.80 Drainage systems
Language	English
Edition	1^st Edition
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