Materials

Varna Airport in north-east Bulgaria provides an important international link for the country, with a runway rebuild helping improve capacity. The airport is of particular importance for Bulgaria’s tourist trade as it provides a major connection for visitors to the Black Sea coast. And the reconstruction work at Varna Airport’s only runway will ensure the facility is able to handle the area’s increasing visitor numbers. The project had to be carried out quickly and efficiently to prevent delays to f

Naçe’s TK11 tertiary impact crusher range has undergone minor updates and improvements, which generate 10% more output, and the range gets a new model - the TK11-10. It fits in between the existing TK11-05 and TK11-15 models and offers an output capability of 220tonnes/hour from its 200kW electric motor. The company’s DMK05 is claimed to be the largest impact crusher produced in Turkey. Using a 500kW electric motor, the DML05 is said to be capable of outputs in excess of 500tonnes/hour, using a 1.4metre

Asphalt plant specialist E-Mak has developed and patented a hot recycling system that saves energy while ensuring bitumen is not damaged during the material recycling process. Cleverly, its new plant re-uses heat generated by the burner and flows it through the tower to improve heat regeneration to maintain product quality. Careful development of flights inside the tower increase the time it takes for material to descend, which also provides additional mixing capability while boosting heat absorption. E

A Sennebogen 6130 HD duty cycle crawler crane is said to be being successfully used by Gral Schotter to extract gravel near Graz, Austria. In the Wundschuh gravel pit, the 6130 HD model is working in dragline bucket operation. At an extraction depth of 13m the crawler crane is said to be penetrating particularly hard layers, a key reason why Gral Schotter was keen to use a duty cycle crawler crane of its size. An impressive 354kW is provided by the model’s diesel engine. The 6130 HD’s two powerful winches e

Effective washing processes are crucial to providing quality materials. Materials washing specialist CDE is offering three updated machines, the Evowash, the M2500 and the Agg Max 83R. All three machines have benefitted from improvements compared to previous versions but the Evowash unit features the most changes, including two ideas with patents pending. “We have been evolving the Evowash ever since we invented it 20 years ago, hence its name,” said Iain Walker, technical sales manager for the Middle East.

Recent exhibitions have been launch venues for key developments in aggregate production technologies - Mike Woof reports Efficient production of aggregates is crucial for maintaining cost-effectiveness and also lowering material costs. With contractors owning many of their own quarry operations, these firms understand the benefits of reducing materials costs for their road construction projects. Major developments in the equipment for crushing, screening and washing aggregates are now coming to market and e

There is a great deal of innovation across the concrete plant, pump and truck mixer sector. Guy Woodford looks at what some of the sector’s biggest names are offering. CIFA managing director Davide Cipolla believes the Zoomlion-owned Italian firm has “not reached the limit” of what it can offer customers, thanks to a significant investment in research and development. Speaking about a US$2.57 million-a-year (€2million) R&D investment in CIFA and some Zoomlion products over the last five years Cipolla, who i

The Turkish Government has an extensive road-building programe - GÜLAY MALOKÇ provides an overview of the country's asphalt industry. Turkey covers an area approaching 800,000km2, of which about 97% is in Asia and 3% in Europe, while its population is close to 72 million. The country borders with Greece and Bulgaria on its European side, and Syria, Iraq, Iran, Armenia and Georgia on the Asian side. Commanding an important strategic position, Turkey controls the routes from the Black Sea to the Mediterranean

Metso ES is the Finnish firm’s new, robustly designed, high-energy, elliptical motion horizontal screen. The new screen is said to provide increased uptime and safer maintenance, while delivering up to 25% more screening capacity compared to a conventional screen of matching size. The two unbalanced shaft lines in the Metso ES rotate in opposite directions, generating a high-energy, elliptical motion with a self-synchronisation design. The new screen is said to be an innovative solution, performing brillian