Concrete milling, paving & compaction

Germany builds its first major PPI autobahn project

July 7, 2015

Rebuilding of one of the oldest motorways in Germany is testing out the possibilities for public-private project road construction reports Adrian Greeman A freshly renovated section of the A8 Autobahn in southern Germany will be watched with some interest this summer as traffic begins driving along its rebuilt carriageway and additional third lanes. That is not because of any special road features, other than a distinctive reddish colour to its concrete surface, but because it is a first fullscale public

Atlas Copco’s efficient new concrete screed

May 19, 2015

Atlas Copco is offering a versatile, twin-handled, walk-behind, vibrating screed for use in concrete applications. Compact, single-beam vibrating screed allows contractors to level concrete in a variety of applications, including garage floors and driveways as well as in confined areas. The BV30’s interchangeable blades, lightweight aluminum body and rigid screed blade provide maximum versatility, easy handling and stability. Atlas Copco exhibited the BV30 vibrating screed at World of Concrete, Feb. 3-5

Ground penetrating radar used to investigate tunnel deterioration

May 13, 2015

Using ground penetrating radar to determine reason for serious pavement settling in Kentucky-Tennessee tunnel Just a few years after the opening of the Cumberland Gap Tunnel, highway officials noticed moderate to severe settling of the continuously reinforced concrete pavement. The mountain tunnel provides an important link between Kentucky and Tennessee along US25E and the problem looked serious, with many voids discovered beneath the pavement surface. To investigate the problems, the Kentucky Transpor

Training as well as test equipment is a must for emerging markets

April 27, 2015

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

Australian contractor’s stringless slipforming switch

April 27, 2015

An experienced contractor in Australia is benefiting from using stringless controls for slipforming work to boost efficiency. Set up times are shorter using the Topcon technology for stringless paving An Australian contractor is now benefiting from using stringless controls for slipforming work on its Power Curbers machine Statewide Kerbing of Sydney, New South Wales, has been an innovator with different types of slipforming work in Australia. And the firm has taken that one step ahead by using the

Catsurveys introduces mobile GPR that covers 50km a day

March 10, 2015

Catsurveys Group’s latest mobile ground penetrating radar (GPR) unit can cover up to 50km a day to identify underground utilities, buried manholes, chambers, culverts, tunnels and other objects. The mobile GPR uses a multitude of low- and intermediatefrequency antennas to boost the quality of data. Double polarised antennas cover longitudinal and transverse scans to create clear images. The surveys combine GPS and total station theodolite recording to give pinpoint geolocations of all features of interest.

G&Z launching new concrete placer

March 4, 2015

New material placer being introduced by G&Z – Mike Woof writes. Guntert & Zimmerman is now lifting the wraps from its new MP550 material placer, having announced last year that design work was underway. This machine is designed to boost throughput and overall productivity on site, while being versatile, easy to maintain and service and offering low running costs. According to the firm, the MP550 is the most versatile material placer on the market as it can handle a wide variety of concrete slumps as well as

G&Z launching new concrete placer

March 3, 2015

New material placer being introduced by G&Z – Mike Woof writes. Guntert & Zimmerman is now lifting the wraps from its new MP550 material placer, having announced last year that design work was underway. This machine is designed to boost throughput and overall productivity on site, while being versatile, easy to maintain and service and offering low running costs. According to the firm, the MP550 is the most versatile material placer on the market as it can handle a wide variety of concrete slumps as well as

G&Z launching new concrete placer

March 3, 2015

New material placer being introduced by G&Z – Mike Woof writes. Guntert & Zimmerman is now lifting the wraps from its new MP550 material placer, having announced last year that design work was underway. This machine is designed to boost throughput and overall productivity on site, while being versatile, easy to maintain and service and offering low running costs. According to the firm, the MP550 is the most versatile material placer on the market as it can handle a wide variety of concrete slumps as well as

Wirtgen introducing new concrete paver range

March 3, 2015

Wirtgen is introducing a new concrete paver range, the SP90 series. These models will replace the existing SP80 series as well as the SP850. Four basic models have been announced at present, the SP92, SP92i, SP94 and SP94i, although with the range of options and features available, the capabilities offered will be extensive. Paving widths for the machines now range from 2-9.5m, increasing the maximum width and allowing these units to handle a wider array of slipforming tasks than the earlier SP80 Series mod