Materials

Nigerian asphalt producer increasing capacity with Sandvik plant

June 30, 2014

In Nigeria a major asphalt producer is increasing production capacity to cope with growing demand for its materials Nigeria is developing its road and highway network, which has triggered greater demand for quality aggregates and asphalt for construction. Producer Asphalt Unity Construction is now meeting this demand with its purchase of new mobile equipment from Sandvik Construction.

Hitex offers fast and reliable crack and pothole repairs for asphalt roads

June 24, 2014

Clearview Traffic brand Golden River’s innovative M210 Logging Stud for planners and road operators is said to be achieving global sales success among those looking for a low-cost vehicle counting solution for both permanent and occasional data collection. The M210 solar powered logging stud provides accurate count information in a simple self-contained unit that can be installed quickly and easily, thus minimising costs, saving valuable time and most importantly disruption with installation and ongoing

Simex’s new VSE 40 screening bucket in action

June 16, 2014

This video shows Simex’s new VSE 40 screening bucket being put to work by two of the company’s Italian customers. The attachment is said by the firm to be unlike similar models on the market as it allows the user to change the output size of the material without having to perform complicated mechanical procedures. Thanks to an original patented solution, the VSE screening bucket lets the operator modify via hydraulic control the distance between the screening elements, and thus the output size between 0-15m

RAP Drum Benninghoven’s system in counter flow – The RAP solution for the future

May 21, 2014

Benninghoven’s Ralf Port talks about the German firm’s development with partner BAM of its counter flow parallel drum system for RAP material The asphalt industry constantly searches for new solutions in order to optimise processes within the asphalt plant. A major subject is the increase of RAP content in all recipes. Recycling Parallel Drum Systems work in various sizes and at various power levels. This technique has been established by different producers over the decades. However, all kinds of concepts

Recycling from the wings to centre stage

May 20, 2014

Driven by the price of virgin aggregates and strong environmental concerns, the recycling of reclaimed asphalt already is and will increasingly be a hot topic within the asphalt plants’ and associated equipment manufacturing sector, says Kathrin Richter, marketing manager for Ammann’s Asphalt Division “Until a few years ago, the question was: How much reclaimed asphalt can one add to the recipe mix? Today, the question is more likely to be: How much fresh material should I add to the reclaimed asphalt? Ove

Asphalt Plant innovation in the US and Eastern Europe

May 20, 2014

While one leading asphalt plant manufacturer is claiming a RAP production first, another is proving a big success in one part of Eastern Europe. Guy Woodford reports Astec Industries is continuing its track record for innovation by claiming it is the only asphalt plant manufacturer offering asphalt mix producers a 100% RAP [Recycled Asphalt Pavement] plant. With the addition of the Conexpo 2014 launched RAP KING plant to its product line, Astec says it is now able to offer a complete array of plants coverin

TRL wins materials recycling research deal from Qatar

May 20, 2014

TRL has won a research grant package from Qatar focussing on recycled materials. The 6th Qatar National Research Fund (QNRF) Forum (14th May) has been awarded a research grant under the seventh cycle of its National Priorities Research Program (NPRP). The research will focus on the innovative use of recycled aggregates in construction, with the project commencing in autumn 2014 and lasting three years. Maximising the use of recycled and secondary aggregates is a priority to meet the demand for aggregates i

Scottish application for SMA surfacing technology

May 20, 2014

A new Scottish specification for stone mastic asphalt could help with some of the durability issues sometimes experienced in the UK An alternative specification for stone mastic asphalt has been used on the A90 in Scotland, with tests suggesting that the material will be more durable than thin surfacing produced under the standard UK specification, Clause 942 of the Specification for Highway works.

Warm mix use in the US and Czech Republic is strong

May 20, 2014

The Czech Republic has seen its first ever use of warm mix produced using additive Evotherm - and a survey carried out in the US shows that warm mix is still on the rise there - Kristina Smith reports The troubled Blanka Tunnel in Prague will see the Czech Republic’s first ever use of Evotherm warm mix asphalt (WMA) technology. The 6km tunnel is the longest urban motorway tunnel in Europe and will take the north-west section of the city ring road below ground. Designed as dual carriageway throughout w

Innovative low temperature asphalt and aggregate options and advances

May 16, 2014

Studies show the asphalt sector has options for materials use that can lower costs and emissions, as well as increasing the use of recycling One study in the UK led by the Carbon Trust and Lafarge Tarmac has found that low temperature asphalt (LTA) could be used as an alternative to conventional asphalt on roads. Conventional asphalt is made when aggregates and bitumen are bound together at temperatures of between 180ºC-190ºC. However, the trial found that the alternative is able to bond road materia