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In Azerbaijan an Astec batching plant is said to be giving a major contractor an advantage over its competition The firm, Aztikintiyol, is one of the leading producers of aggregates and hot-mix asphalt in Azerbaijan and decided to expand its operations into the southern regions of the country. The need for asphalt in this area was growing as there is massive infrastructure development close to the border with neighbouring Iran taking place. However a simple plant was not suitable as the firm required

The Detroit River is short, only 45km, and narrow in places, less than 1km. Around a quarter of the annual $658 billion Canada-US trade crosses over the river. That’s $160 billion worth of goods trucked each year between Detroit in the US state of Michigan and the Canadian city of Windsor in the province of Ontario - the Windsor-Detroit Corridor. There are several types of crossings, but the vast majority of commercial traffic must use the 2.3km Ambassador Bridge (see box). A new bridge was initially prop

Gill Instruments has improved the sonic temperature performance of the company’s 3-axis anemometer range to an accuracy of greater than ±1% in readings between -18°C and +30°C. The improvement has been achieved by using the US National Physical Laboratory’s advanced sound profiling facility as well as research using in-house computational fluid dynamics - CFD modelling - to examine transducer production. Anemometers are used throughout the meteorological research and industrial industries. They simultane

VIDEOTEC’s latest compact outdoor camera, the ULISSE Compact HD PTZ, now comes with a 30x optical zoom lens. It has higher sensitivity, higher gain level, improved WDR, defog function and improved autofocus speed. As such, it offers what the company claims is unrivalled performance even in extreme low light conditions. The unit’s optional IR LED illuminator, ULISSE COMPACT HD provides sharp images of the monitored area at night and is able to detect a figure in the dark up to 200m away. The built-in wipe

Trimble has launched what it claims is an affordable and easy-to-use site positioning System for superintendents, foremen and field engineers on heavy civil construction sites. Instead of using paper plans, the Trimble SitePulse System empowers field managers with the same 3D constructible model and digital information that is used by construction surveyors, grade checkers and machine operators. Trimble SitePulse field software is ideal for construction managers who do not have a surveying background. The

New machines from Italian supplier Barin are now being used to help maintain bridges in Thailand. The Department of Rural Roads ordered one of the Barin AB range of bridge inspection machines for use by its Bridge Construction Bureau. This machine was installed on a suitable truck chassis to cope with the 24tonne GVW and as with other units in the Barin range, is able to operate from a single lane. The AB 13/S unit offers a bridge barrier clearance height of 3.6m and a sidewalk clearance of 3.2m. Ho

In the US state of Iowa, tough paving specifications are resulting in contractors delivering road surfaces that will last longer. The Iowa Department of Transportation (I-DOT) expects to see a highway road surface last 20 years and recently let the contract for a 25.7km road resurfacing project for Highway 92 between Winterset and Greenfield. The 40km link between the two towns sees an average 1,365 cars/day travel on the highway, which was last worked on in 1994 and its surface was due for replacement.