Asphalt milling, paving & compaction

Tensar is making some key moves internationally, as well as in terms of market segments. The company is now marketing the GlasGrid range in the US and expects to develop healthy sales, however it sees major growth potential with the Geogrid product range. Jim Penman, director for bi-axial products & applications said: "One area we're moving into is base reinforcement and in particular what we're looking at is mechanistic emirical (ME) technology." Tensar has worked with the University of Illinois on a new d

A special emulsion is being used at the largest gold mine in South America for slurry surfacing on its compacted, unpaved roads. The result is said to be greatly curtailed particulate emissions and enhanced visibility which makes roads safer and reduces regional haze.

In Estonia, Novotrade Invest, which produces hydrocarbon resin HCR-105, has carried out research work on the material that can be used as a bitumen modifier. Hydrocarbon resin HCR-105 is obtained by thermal polymerisation of hydrocarbon fraction C9 [industrially it is isolated from the C9 aromatic hydrocarbon fraction during petroleum distillation].

US and European asphalt paving needs are different, but some firms are bridging that gap, reports Mike Woof. With a clear differentiation between the US and European asphalt paving markets, manufacturers from the latter are now developing machines aimed at the former. The US and European markets for paving machines have developed along very different lines. North American pavers are designed for high throughputs and high paving rates, having been designed to meet a need to build roads over long distances wi

As powerful fabrics, geosynthetics and geotextiles have a wide range of applications in many civil engineering applications including roads and airfields. Geosynthetics specialist Tensar is introducing a radical new product that it thinks will revolutionise the construction industry. According to the company, its new product represents the "biggest advance in ground stabilisation technology for 25 years. Six years in development, it is said to offer major improvements in aggregate confinement and soil stabi

Improved surface quality and improved machine design are key trends in the asphalt paving sector, Mike Woof reports There is a big difference in asphalt paving techniques in North America and Europe. In North America, the need to construct long stretches of highway quickly resulted in wide pavers offering high throughput capacity, with compaction equipment then being used to achieve the required density of the various courses. In Europe's highway construction projects, distances tend to be shorter and contr

Several key highway construction innovations will be unveiled at the Intermat show