Page 106 of 135 
25.07.2022
Martin-Devid Herrenknecht joins family-owned company´s Board of Management
With Dipl.-Ing (FH) Martin-Devid Herrenknecht (35), a member of the family is taking over a strategic Board of Management portfolio in the family business led by founder and CEO Dr.-Ing. E.h. Martin Herrenknecht (80).
25.07.2022
HS2 celebrates historic first Tunnelling Breakthrough
- Massive Tunnel Boring Machine (TBM) in Warwickshire becomes first on the HS2 project to complete its full journey underground
- The first bore of the one-mile tunnel under Long Itchington Wood has been dug in seven months
25.07.2022
Webuild wins Highway Contract in Florida
- Contract to improve safety, operational efficiency on I-275/I-4 highway interchange in Tampa, Florida
- Contract highlights importance of North America as core market, representing 21% of Group’s 2021 consolidated revenues
 | Market-Place-4.0 Agru Kunststofftechnik GmbH |
25.07.2022
AGRU Concrete Protection for giant Wastewater Tunnel
The access shaft is protected from concrete corrosion with green Ultra Grip concrete protective liners. (credits: Watercare)
The Auckland Central Interceptor is the largest wastewater project in New Zealand's history. This super-sized wastewater tunnel will transport sewage from the west of the city to the Māngere Wastewater Treatment Plant in the east. Commissioned by Watercare Services Ltd, the new wastewater tunnel will cost around NZD 1.2 billion and is scheduled for completion by 2026. AGRU Kunststofftechnik supplies concrete protective liners made from polyethylene that will protect the wastewater tunnel against concrete corrosion in the long term.
The Central Interceptor Tunnel is 4.5 meters in diameter and will run for 14.7 kilometres from Grey Lynn under central Auckland and Manukau Harbour to Māngere. The tunnel is situated between 15 and 110 meters below the surface. Together with two smaller connecting tunnels, the main tunnel will collect wastewater from the existing network and convey it to the Māngere Wastewater Treatment Plant. For maximum durability of the multi-billion infrastructure project, Watercare Services Ltd has chosen AGRU concrete protective liners.
HD-PE lining protects against concrete corrosion
The high-quality lining made of high-density polyethylene effectively prevents concrete corrosion and abrasion. Thanks to their 13 mm long anchor studs, AGRU Ultra Grip concrete protective liners have enormously high pullout force. The thermoplastic lining protects the concrete against corrosive gases generated by the wastewater in the tunnel. This allows for maximum service life of the tunnel structure. For easier sewer inspection and detection of damage, the tunnel is divided into four different coloured sections. AGRU supplies the Ultra Grip concrete protective liners in 3 mm thickness. While the access shafts are lined in green, the sewer tunnel is lined in yellow, pink, blue, grey and sealed by extrusion welding.
This project is not only intended to accommodate the population growth in this major city of 1.7 million inhabitants and the resulting increased demand for wastewater. In older parts of downtown Auckland, wastewater and storm water flow into a combined pipe network. During heavy rains, storm water can flood these pipes. Currently, during heavy rains, storm water contaminated by fecal matter is discharged into Waitematā Harbour. The new wastewater tunnel is expected to significantly reduce these overflows.
The construction contract was signed with the Ghella Abergeldie Joint Venture in March 2019. A 200 m long Herrenknecht tunnel-boring machine is in use. The finished wastewater tunnel will have a gradient of 1:1000 to allow wastewater to drain to Māngere. A total of sixteen access shafts with a depth of up to 65 meters will be built for maintenance and operation. In the course of this, control and overflow structures as well as air treatment facilities will also be built for future operation.
Prior to construction of the project, AGRU Kunststofftechnik GmbH and Agru New Zealand Ltd provided technical support for the installation of the lining for the shafts and tunnel. Agru New Zealand Ltd provided on-site extrusion welding support and training to the site crew. AGRU Kunststofftechnik GmbH and Agru New Zealand Ltd. have coordinated and continue to coordinate the supply of approximately 210,000 m² of lining for the project.
Source: AGRU
22.07.2022
Delegation visit marks first Milestone in Australia-India critical Minerals Partnership
Australia welcomed a ministerial level delegation from India as a major step in the Australia–India Critical Minerals Investment Partnership.
Page 106 of 135
03.11.2023
Recruiting, Developing and Retaining skilled Workers
As a result of demographic trends and the huge challenge that climate change has brought to society many of the companies involved in the geotechnical engineering, tunnel construction and mineral ex...
03.11.2023
Optimisation of Salt Production at Heilbronn Mine using a Combination Approach to conventional Mining and mechanical Cutting
Heilbronn mine has been producing rock salt for many years using both conventional mining and mechanical cutting, the two methods being operated independently of each other. With the rearrangement o...
11.07.2023
Focus on Raw Materials Security and Supply Chains - now is the Time for Creativity, Courage and Energy
Technical expertise and creative ideas have now become essential for raw materials security and efficient supply chains. So read on and be inspired.
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28.11.2023 - 30.11.2023
Resourcing Tomorrow 2023
12.12.2023 - 13.12.2023
2nd International Congress and Exhibition - Mining of Uzbekistan and Central Asia
14.12.2023 - 15.12.2023
MINING WORLD CONGRESS 2023
14.12.2023 - 15.12.2023
GEOTEC HANOI 2023 – The 5th International Conference on Geotechnics for Sustainable Infrastructure Development
World’s longest Railway Tunnel Project – supported by innovative Conveyor Digitalisation and reliable Engineering
17. October 2022 (1955 Clicks)
The consortium BTC Brennero Tunnel Construction and the Hosch Group jointly delivered on a world-class tunnelling project by combining excellent engineering with the innovative remote monitoring system Hoschiris Discover.
Liederbuch für Berg- und Hüttenleute - das Original - modern überarbeitet!
11. May 2017 (3549 Clicks)
Das Liederbuch für Berg- und Hüttenleute des Berg- und Hüttenmännischen Vereins ist wieder lieferbar. Die neue, 15. Auflage ist inhaltlich umfassend und modern überarbeitet. Im Auftritt bleibt es klassisch und ist hochwertig sowie langlebig verarbeitet. Dies ist die einzige authentische Neuauflage des originalen Liederbuchs für Berg- und Hüttenleute des Berg- und Hüttenmännischen Vereins. Für zu Hause, den Knappenchor und die Kneipe.
27.11.2023 (237 Clicks)
Akobo Minerals celebrates historic milestone: hitting gold ore body at the Segele Mine
