Assuring quality, avoiding errors

State-of-the-art sewer construction using ­precast ­elements

Drainage and sewer systems are key to ensuring hygienic, environmentally sound conditions in all municipalities and local communities. They are also major assets held by those communities, and are usually depreciated over a useful life of 50 to 80 years. State-of-the-art precast elements make it possible to construct cost-efficient, long-lasting sewer systems. To achieve this goal, concrete grades and anti-corrosive precautions should be aligned with specific design and operational requirements, modern production processes should be available to adhere to the highest possible quality standard,...

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Issue 2018-02 The new Worksheet DWA-A 139

Construction and testing of drains and sewers

The revised edition of Worksheet DWA-A 139 includes the supplementary notes and further explanations on DIN EN 1610 “Construction and testing of drains and sewers” (Einbau und Prüfung von...

Issue 2014-11 Wayss & Freytag

Concrete with increased acid resistance for pipes and shafts

Conversion of the subterranean wastewater treatment plants between the German cities of Dortmund and Dinslaken results in an ecological upgrading of the catchment area of the EmscherRiver and...

Issue 2021-02

Acid-resistant, SCC for concrete components in underground construction

We know that concrete has many  strengths. We do also know that concrete  has a weakness. Its resistance to aggressive media, in particular, biogenic sulfuric acid is just this weakness that is...

Issue 2013-11 BFS

Newly conceived inliner pipe

With the BFS Strato Pipe, the manufacturer of precast concrete systems BFS Betonfertigteilesysteme GmbH, based in Blaubeuren, Germany, has conceived a new inliner pipe specifically for use in sewers...

Issue 2019-02 Automation in sewer construction

Implications for pipe installation

Shortage of staff, migrant workers, and cost and deadline pressure are forcing civil engineering companies to rationalize and mechanize their work processes. The product portfolio of equipment used...