Asphalt milling, paving & compaction

A life-cycle assessment has found that an asphalt mix containing a high percentage of reclaimed asphalt pavement (RAP) along with an additive by Arizona Chemical can produce a significantly lower carbon footprint than virgin asphalt mix or a mix containing a low percentage of RAP. The assessment study was carried out by third party Arthur D. Little, an international management consulting firm, using Arizona Chemical’s SYLVAROAD RP 1000 performance additive. The work noted that cradle-to-gate, a road aspha

New technology was one key focus area for the World of Asphalt/AGG1 event run recently in the US city of Baltimore - Mike Woof writes Technology has been a major focus for the combined World of Asphalt and AGG1 2015 exhibition and conference held in Baltimore. The exhibition area attracted 450 exhibitors and covered a larger area than for previous events, while over 10,000 education season tickets were bought by those wanting to attend the presentation sessions. The event was held from March 17th- March

The Scottish arm of UK-based Breedon Aggregates has completed the largest acquisition of Cat machinery in Europe and the Middle East in 2014. The last one of the 29 machines have been delivered to Breedon, taking the company’s total investment in Cat machines in the past year to £2.5 million. Breedon purchased the machines through Finning UK, a division of Finning International, one of the world’s largest distributors of Cat equipment and power systems. Finning put together a package that included 25 utilit

Transport investment faces a shortfall that can perhaps never be breached – David Arminas writes There “will never be sufficient funds for all planned road activities,” said Ben Gericke, transport specialist at The World Bank. The road maintenance industry is going to have to use the best possible contract strategy to win the investment it needs. Speaking at the PPRS Paris 2015 Pavement Preservation and Recycling Summit, Gericke said that the best way for the global highway construction and road maint

The PPRS event in Paris highlighted the need for additional investment in road transportation – David Arminas writes. Consider the global road network. An improved road from one rural African town to another can reduce the journey time from a one-day walk to a one-hour drive. This could save lives through access to a hospital; allow small businesses to work faster by getting in supplies more quickly; allow children to attend a better equipped school. Roads affect society by allowing healthier and bett

Pavement engineering specialist Dynatest has improved its best-selling falling weight deflectometer, allowing it to not just collect more data, but collect it faster. The Danish company said its FastFWD8002, which was unveiled at the Transportation Research Board annual meeting in Washington in January, is five times faster than the previous model. The FastFWD8002 collects 75% more test points per hour, meaning it can have around 45% less traffic exposure. The previous unit is upgradeable to FastFWD80

Emerging markets, such as North and East Africa, are developing an appetite for materials testing equipment, but suppliers need to provide expertise and training as well as a broad range of machines, as Kristina Smith finds out Asking what sort of testing equipment is required for Africa is a little bit like asking what sort of food Europeans like to eat. The answer is that requirements vary enormously from the most basic and ancient of tests to the very cutting edge of dynamic testing. “You have some

The use of machine control technology on a bypass construction job has boosted quality quality control is a topic that clients as well as contractors are finding increasingly important. Control systems are being used more and more often on construction sites as a result, so as to collect data on a range of processes. This includes looking at the asphalt being supplied to site and on the quality of paving during construction. Using this data, processes can be optimised in the medium-term and, in the long-ter

Wirtgen is introducing a new compact milling machine in the shape of its novel W35Ri model. This machine is designed to mill slows 350mm wide and Michaela Adams of the firm’s marketing department said: “We are the only manufacturer with a machine this size.”