Materials

Singapore-based PRIMACH is now offering an improved range of small to medium sized batching plants. These units are designed to meet the needs of developing markets and can cope with use in remote areas with tough jobsite conditions. Rugged and reliable, the plants can cope with wide variations in climate, while producing high quality hot-mix at low cost according to the firm. The PRIMACH asphalt mixing plants have been specifically developed to meet customer needs in emergent markets such South East Asi

A challenging road construction project is being carried out in Italy within a tight timeframe, with assistance from a new Marini asphalt plant. The project is for the Salerno-Reggio Calabria highway and the work has to be completed before the end of 2016. Local contractor Bulfaro is carryiing out the work to complete surfacing work to the Macrolotto 3.2; a 40km section of the highway between Laino Borgo and Campotenese. This section of the route is at an altitude of over 800m but the work was complicated b

Benninghoven has developed a new mastic asphalt transport boiler that features an all-electric mixer shaft drive. The GKL Silence unit has an electric drive to power the mixer shaft. Flender SIP planetary gear units are used in conjunction with three-phase asynchronous motors as completely ready-to-install planetary geared motors from Siemens. This design allows the compact two-stage planetary geared motor to be adjusted to the output and speed range required. Used in conjunction with a four-pole three-p

Today, the new US president Donald Trump will be driven triumphantly down Washington D.C.’s famous Pennsylvania Avenue. “The Donald” had a bumpy ride from time to time on his campaign trail to the Oval Office. But the 70-year-old businessman-turned national leader won’t experience any bumps during his historic ride this afternoon, thanks to Fort Myer Construction. Every four years, Fort Myer Construction has the opportunity to provide milling and paving along Pennsylvania Avenue for the District Departme

Kögel is offering new two and three-axle asphalt tipper trailers available with full insulation, allowing longer haul distances. The two- and three-axle variants both offer a load capacity of 24m³ and can also be provided with a fully insulated thermal lining in all the available wall and tipper body thicknesses. The three-axle version features a 5mm thick tipper body base, a 4mm thick back wall made of tempered Hardox 450 steel and side walls made of high-strength, 4mm S700 sheet steel. This combinatio

Ammann has won a significant order from a customer in Thailand for an asphalt plant at bauma China 2014. The plant is being supplied to a major Thai contractor, located around one hour’s journey from Bangkok. The customer has an older generation plant that will be retained, but is buying the newer and more sophisticated Ammann plant to help boost production.

The model asphalt plants that Astec takes to exhibitions around the world are built to scale and represent a notable investment, as they cost around US$400,000 to make. Varner said that eyebrows were raised when the models were commissioned but said, “The models were made by our guys in the workshop. At first it seemed like a waste. But they’ve turned out to be one of the most valuable items of real estate.” When not being shown at exhibitions, the models reside in a special demonstration hall at the As

Asphalt production is a complex process featuring many variables - Mike Varner, chief engineer at Astec Inc discussed methods with Mike Woof Asphalt production in a black art in more ways than one. It involves a complex process of mixing bitumen with aggregates under temperature and optimising this operation is crucial to maximise quality. But with so many variables, determining exactly what is going on inside an asphalt plant involves extensive research, sophisticated computer modelling and the use of a