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FSC-compliance at Intrafor

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FSC-compliance at Intrafor

Intrafor adopts reusable steel formwork as much as possible. However, it is still necessary to use wood for some applications, such as to cover starter bars in diaphragm wall panels. To reduce the environmental impact, Intrafor is now using 100% FSC-compliant wood, where available, for this purpose. The FSC (Forest Stewardship Council) identifies and certifies forests that are well managed and where biodiversity, productivity and the ecology are maintained.

Simplified grouting

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Simplified grouting

VSL Australia has recently added several bulk bag cement dispensers to its equipment pool. The dispensers reduce manual handling, environmental impact and the risk of injury while increasing quality and productivity. Operation is ‘push button’ and the grout mixers can process 15t of cement per shift with just one operator, less dust and less wastage for both, cement and packaging, since the bags can be returned for reuse.

Solar power for geotech

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Solar power for geotech

FTLaboratories has introduced renewable energy options to power its range of equipment. Monitoring systems can now be fitted with solar arrays or wind turbines to provide power without installation of electrical supply. This option is particularly useful for installing monitoring systems in remote areas or where an electrical supply is not readily available.

Hong Kong-Zhuhai-Macao Bridge - Sustainable construction with the Zhuhai-Macao Bridge in Hong Kong

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Hong Kong-Zhuhai-Macao Bridge - Sustainable construction with the Zhuhai-Macao Bridge in Hong Kong

The construction of the Zhuhai-Macao Bridge in Hong Kong is based on a sustainability objective as it adheres to strict environmental policies regarding air, water and sediment quality, ecology, cultural heritage, waste management, noise and the impact on fisheries. The new route will help minimise CO2 emissions from vehicles as it will significantly shorten journey times in the region. The Chinese White Dolphin present in the eastern part of the Pearl River Estuary and Hong Kong waters will be protected and the 9.4km Hong Kong Link Road has been carefully aligned to avoid the main areas where the species is found. In addition, extensive migration measures are being put in place to minimise the impact of construction. Perimeters silt curtains will be set up to control spills and prevent sea life entering work zones. A monitoring and audit system will also confirm that protection measures are effective as predicted and identify areas for improvement.

EXP for quality

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EXP for quality

The VSL Engineering eXcellence Programme (EXP) is aimed at senior or experienced engineers, particularly those responsible for translating designs and concepts into methods and reality. EXP took place in early June, with a focus on technical requirements and the role of engineers, including the prevention of quality and safety problems.

Specialised training for bridge erection

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Specialised training for bridge erection

A new training programme aimed at developing the next generation of specialist bridge erection engineers at the VSL Academy. It covers the operation of equipment such as launching gantries and is intended to help VSL maintain its high standards of safety and quality. The first 25 engineers and supervisors are mid-way through a three-month programme covering topics ranging from project team organisation to safe and efficient operation of the equipment.

Sustainable development at heart

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Sustainable development at heart

In response to the challenges of sustainable development, VSL implemented a company-wide policy focused on environmental, corporate and social responsibilities at all project stages. Changes were made in 2012, with greater emphasis being placed on sustainable construction. The policy is now organised around four key themes and 12 commitments.

Solvent recycling

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Solvent recycling

A new solvent recycling system has been introduced at VSL Systems Manufacturer’s Spanish plant. The solvent vapour is condensed into a liquid and collected for re-use while the paint is sent to a specialist waste treatment company. 90% of the solvent is now being recovered and the amount of paint waste has been halved, saving on disposal costs.

Slab savings

Sustainability features highly in the development of Tata Consultancy Services’ new 20ha complex in Pune, India, with the use of fly ash saving more than 5,000t of cement. VSL India has been awarded the design, supply and installation of the 1,045t of post-tensioning for the project’s slabs and beams. Other “green” aspects include the use of bio-gas and daylight harvesting.

Sustainable restoration

Sustainable restoration

A design and build consortium led by VSL France has carried out the restoration of Lameilhé Footbridge in the city of Castres in south western France. The consortium, which also included an architect and engineering consultant, bid for the contract with a proposal for the preservation and rehabilitation of the footbridge’s four spans over the road, and demolition of the remaining eight spans. Quality and sustainability were central to the consortium’s approach, which included the reuse on site of materials from the demolished section. Work began with the demolition, together with a reduction in width of the remaining spans. Tasks carried out included the application of sealants, addition of carbon fibre to the joists and the installation of new cornices, railings and lighting. The deck surface was treated with a textured resin-based coating.

Recycling materials

VSL in New Zealand is taking a lead in sustainability and recycling by finding companies who can reuse materials arising from the demolition of a 700m-long Newmarket viaduct in Auckland. Other initiatives include reducing carbon footprints by working with key suppliers to minimise the number of deliveries

Zero accident on Hodariyat Bridge

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Zero accident on Hodariyat Bridge

During the construction, the Hodariyat Bridge Project reported zero lost time accident and achieved 4,750,000 safe man hours. VSL Middle East LLC and Overseas AST Joint Venture is the main contractor that undertook the design/build of the Hodariyat Bridge in Abu Dhabi.

Green way takes the lead

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Green way and VSL take the lead in Malaysia

Malaysia’s first LEED goldcertified building has been built using an alternative design that was proposed by VSL. The Shell SSC building in Cyberjaya was developed under the EMKAY Group banner and was completed at the end of 2010. Almost 80% of the 61,000m² ‘green’ building incorporates the VSL posttensioning system, with approximately 230t installed. The building houses five levels of office space and three sub-basement levels of parking. It is designed to save energy and natural resources and provide for a healthier and safer environment. Construction of the entire structure took just six months.

Certification

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VSL France was awarded the ASQPE (Association for the Qualification of Prestressing and Equipments for Building and Civil Works) certification to introduce prestressing processes involving post-tensioning. VSL thus becomes the first company to enjoy such recognition both in France and throughout Europe.

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