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On the geotechnical trail - 2


Stand D4

CAL Services UK www. cal-services. net CAL Services will be demonstrating the benefits of the new Tomcat pipe and cable locator, for which it is an authorised distributor. The rugged buried utility locator tool has a detachable loud speaker, adjustable sensitivity and easy switching between the three - operating modes with fingertip controls.

The Tomcat can be used as a stand alone passive receiver or with an active frequency signal generator - both are compatible with other brands of 33Khz equipment. The company will also be showing its full range of services, including servicing and reconditioned sales of most make and models of cable locator.

Stand N34 Campbell Scientific www. Campbell Scientific's tough, portable and accurate dataloggers are at the heart of many structural monitoring systems around the world.

Its 'magic boxes' (dataloggers) are used on dams, tunnels, bridges and buildings. Other systems include weather stations, soil moisture profiling, hydrology and telemetry.

Stand B18 Cetco Europe www. Cetco Europe manufactures geosynthetic clay liners (GCLs) which use the sealant properties of sodium bentonite in a range of environmental, civil engineering, water and chemical containment applications. As well as traditional markets of landfill engineering, brownfield encapsulation and secondary containment, Cetco GCLs are finding increased use in surface water impoundments, flood defence and other surface water drainage systems. The firm's newest product, Bentomat CL, is a GCL with a layer of geomembrane laminated to one side for use in severe hydraulic or chemical applications and was was recently used to line the largest area of manmade reed beds in Europe.

Stand H28 Chemtest Chemtest provides high quality, fast response analytical services and monitoring to the environmental and construction industries.

Stand D5 Ciria www. Ciria's research activities cover buildings and facilities, transport, water and utilities. Working both within and across these market sectors, Ciria's work has a broad coverage topical to construction and the environment. Its outputs include books, reports, CD-Roms and multimedia training packs, events and websites. A selection of these will be available to browse and order from its Civils stand.

Stand N14 Civil Engineering Contractors Association www. ceca. co. uk CECA represents more than 300 civil engineering contractors, accounting for up to 80% of all civil engineering carried out in Great Britain. CECA comprises a national body and eight regional associations, including Scotland and Wales. It undertakes regular liaison with government and major clients at local and national level and with the devolved administrations. CECA also liaises with other bodies whose activities relate to their members' interests, such as workload prospects and procurement.

Stand D30 CNS Farnell www. cnsfarnell. com CNS Farnell manufactures test equipment for construction materials and soils, including two penetrometers for site investigation. The soil assessment cone penetrometer measures the resistance to penetration of soils providing a reading in terms of the California Bearing Ratio or Cone Index. Its Dynamic cone penetrometer is used for rapid insitu measurement of the structural properties of road pavements constructed from unbound materials. Another piece of kit, the Clegg impact soil tester, is used for measuring and controlling soil strength and consolidation levels during trench reinstatement. The firm is also the UK distributor for CarlBro's Prima 100 falling weight deflectometer, which can be used to determine bearing capacity and assure the quality of unbound layers.

Stand A23 Cofra UK www. cofra. com At Civils, Cofra UK will be explaining how its GeoflexR PVC sheet piles are an acceptable alternative to other sheet piling systems. While the manufacturer, supplier and installer of geotechnical systems says GeoflexR will never replace steel sheet piling for all projects, it says it can be used instead of lightweight steel and timber piles. The sheet piles can be manually handled and installed by lightweight equipment.

Cofra has worked with May Gurney and others to provide retaining walls to culvert abutments, deep hydraulic barriers in the core of earth flood defence bunds, support to gabion walls and erosion control for inland and sea defences. The firm will also show its band and wick drain systems, its Geolock watertight vertical cut-off wall system and Augeo insitu concrete piles - formed by soil displacement in a pvc tube and used with geogrid and stone load transfer platforms.

Stand C20 Con-Form Contracting www. con-form. co. uk Ground improvement contractor Con-form will be focusing on its new mobile batch plant (GE June 05) and its innovative E-Found foundation (GE July 05). E-Found involves adding lime to marginal soils, particularly weak and desiccated ones and compacting them to provide ground strong enough for pad foundations.

The system was recently used on a contract for Wimpey Homes. The firm's portfolio includes foundation solutions, soil stabilisation and modification, remediation, rolling dynamic compaction, contaminant migration barriers and pavement construction.

Stand M6 Corus Construction & Industrial www. corusconstruction. com Steel manufacturer Corus Construction & Industrial Guidance provides free advice to the construction industry covering all aspects of the design, specification and use of its range of construction products, which includes structural sections and plates for building and civil engineering applications. Advice is provided by the firm's team of regionally based engineers across the UK and Ireland, supported by a design team based at its manufacturing centre in Scunthorpe.

Stand D20 Crossrail www. crossrail. co. uk Cross London Rail Links (Crossrail) is a 50/50 joint venture company formed by Transport for London and the Department for Transport. Crossrail is tasked with promoting and developing two new main line routes through London:

Crossrail line 1 (from Maidenhead and Heathrow in the west to Abbey Wood and Shenfi eld in the east) and Crossrail line 2 (a north east-south west link).

Stand G3 Don & Low www. donlow. co. uk Under the brand name Lotrak, Don & Low has developed a range of geotextiles with mechanical and hydraulic properties suited to a wide range of construction and civil engineering applications. Lotrak is a woven geotextile designed for use in separation, filtration, drainage, erosion protection and reinforcement applications.

Stand F40 Dywidag Systems International www. dywidag-systems. com/uk Dywidag Systems International manufactures and supplies ground anchors, soil nails, hollow bars, rock bolts, mining bolts, minipiles, ductile iron piles and threadbar and strand systems. One of the many systems on show at Civils will be its ductile iron pile, a segmental pile made of high strength ductile cast iron.

Sections are connected by a spigot and socket joint, which is quick to use and offers a high degree of stiffness. Piles are installed using a hydraulic excavator fitted with a jack hammer. Piles can be end bearing - when they are dry driven to a set followed by concreting of the bore, or skin friction - when they are installed by simultaneous driving and grouting with an oversize shoe.

Stand A31 Environment Agency www. environment-agency. co. uk The Environment Agency looks after England and Wales' environment. At Civils 2005 the EA will be providing expert advice to business on hazardous waste regulations and sustainable construction.

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