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Indonesia’s improved airport benefits from new runway
September 19, 2019
A new runway surface has been constructed at Yogyakarta International Airport in Indonesia.
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West Africa’s biggest bitumen plant
September 19, 2019
July saw the ceremonial sod cutting for a project to build West Africa’s biggest bitumen plant: a joint venture between Ghana’s oil company GOIL and Societe Multinationale de Bitumes (SMB) of the Ivory Coast. The project, which will cost around US$35 million according to GOIL, is in Tema Ghana. With a capacity of 8,000tonnes, it will produce AC10 and AC20 bitumen and polymer modified bitumen (PMB). Speaking at the ceremony, Ghana’s minister of energy John Peter Amewu said: “Due to the success of the PMB
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Iterchimica’s cross-linking agents boost PMB performance
September 19, 2019
Cross-linking agents can vastly improve the stability and performance of polymer-modified bitumen (PMB), according to additive specialist Iterchimica. Modified bitumen can become unstable when it is stored inside a tank because the polymer rises to the top, meaning that the rheological behaviour of the bitumen varies through the tank. Cross-linking agents modify bitumen through a chemical action that stabilises the bitumen inside the tank to create a homogenous PMB and hence, a homogeneous asphalt concr
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Adhesiveness control in asphalt mixes – from the project to production
September 19, 2019
Asphalt plant producer Ciber discusses asphalt mix properties The basic quality criterion of an asphalt mix is its adhesiveness; the adhesion capacity among materials. This adhesive capacity of the asphalt mix can be measured in the laboratory through qualitative or quantitative tests. The result of this analysis should be used as a reference for the improvement of the mix. In the laboratory this can be achieved using additives while at the plant it can be achieved using differing mixer technology an
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Adhesiveness control in asphalt mixes – from the project to production
September 19, 2019
Asphalt plant producer Ciber discusses asphalt mix properties The basic quality criterion of an asphalt mix is its adhesiveness; the adhesion capacity among materials. This adhesive capacity of the asphalt mix can be measured in the laboratory through qualitative or quantitative tests. The result of this analysis should be used as a reference for the improvement of the mix. In the laboratory this can be achieved using additives while at the plant it can be achieved using differing mixer technology an
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Doka feels the heat in Qatar orbital highway project
September 19, 2019
The FIFA World Cup 2022 in Qatar is getting closer so completing major infrastructure projects on time has been a priority for the government. The Gulf state is also in the midst of its Qatar National Vision 2030, launched in 2008 with the aim to "transform Qatar into an advanced society capable of achieving sustainable development" by 2030. Improving infrastructure will help the country of just under 3 million people attain greater social and economic levels, according to the government. Finishing critic
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Extra work for Ulma on Ireland’s New Ross extradosed bridge
September 19, 2019
ULMA has taken part in construction Ireland’s New Ross, the longest extradosed bridge in the world. The €230 million project includes a 14km dual carriageway and a three-tower 900m-long extrados bridge over the Barrow River between Pink Point and Strokestown – to be open in early 2020 – that bypasses the town of New Ross. The extradosed bridge is characterised by its cables set at lower angles, meaning that pylons are shorter in relation to deck span lengths. ULMA was responsible for the transverse s
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Mersey Gateway Bridge has won IABSE’s Outstanding Structure Award
September 19, 2019
The UK’s Mersey Gateway Bridge has picked up the Outstanding Structure Award 2019 from IABSE, the International Association for Bridge and Structural Engineering* Judges described the bridge, designed by Cowi, as "an elegantly integrated solution for a multi-span concrete cable stay bridge in which form follows function". "Everyone involved with the design and construction the Mersey Gateway Bridge over the past six years knows that this is an incredibly special structure,” said Paul Sanders, Cowi’s p
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Innovations in power systems for industry
September 19, 2019
Major innovations in power systems and drivelines are offering increased efficiency and reduced emissions for the future of construction machines - Mike Woof writes
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Belgian steel for Belgian highway artwork
September 18, 2019
Belgian specialist steel producer NLMK has supplied the material used for a distinctive new artwork constructed along a major highway.
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