Contractors World


The UK and Ireland's only FREE to READ digital publication for construction, demolition, mining and quarrying industries

Contractors World UK & Ireland
2012 Vol 2 No 2
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SITE EQUIPMENT What's New

Vision Techniques shutter cameraDirty Rearview cameras are next to useless.

Dumptrucks are routinely fitted with rear view cameras and there is a growing trend for them to be fitted to other large pieces of mining, quarrying and construction equipment. Undoubtedly they are a significant safety benefit and will have resulted in eliminated deaths and accidents within the industry.

However, during use, the lens of the cameras can get very dirty and is not always that easy to reach to clean. Vision Techniques has created a variety of innovative camera products to help prevent this situation occurring, eliminating any accidents and potential litigation costs.

These amazing new products include rear view cameras specifically designed to protect against dirt - so there is no need for manual cleaning.

The Vision Techniques shutter camera clears away dirt and protects the lens at the push of a button.
And the company’s exclusive high-quality Wiper System with Jet Wash system serves a similar purpose, representing a revolution in health and safety.

“A number of waste vehicles are now being specified with multi-channel CCTV systems. A clean camera is critical to capturing vital images for evidential purposes. Both Jet Wash and Wiper Cameras can be retro fitted on any type of quarry vehicle.”

Click here for more information >>> Vision Techniques


Photo: Mick Garratt

LaFarge-New concrete designed to set in cold weather

New concrete designed to set in cold weather

Cold weather has always been a problem for contractors pouring concrete. Extreme cold requires use of additives or some form of exterior covering and heating. However, things could change with the new product recently announced by LaFarge.

Chronolia Weathermix can tolerate far colder conditions than standard concrete with an accelerated setting time to allow construction to continue even in wintry weather.

Nick Yell, product development manager in the Readymix division at Lafarge Aggregates & Concrete UK, said the product was a brand new innovation for the UK. “The idea is Weathermix is less sensitive to cold weather conditions than conventional concrete.

“While it is not an anti-freeze concrete, because of its mix design it sets more quickly and produces its heat much better than conventional concrete which means it can be used in winter weather situations where conventional concrete would struggle to set.”

The company is confident that the product can be used for placing in temperatures from +3 to -7º Celsius.
The concrete is mixed at a Lafarge plant and the temperature monitored so that it is more than 5 degrees centigrade before it goes out to the customer.

With the mixing of the readymix truck and the heat generated naturally from the mix the concrete can be placed and as long as it is protected overnight should achieve sufficient maturity to resist ongoing winter conditions.
Nick said, “It is imperative the customer protects the concrete – it is all about trapping the heat in so it will cook and gain strength quickly.

“This is the benefit of Chronolia Weathermix as conventional concrete would actually struggle to set sufficiently in colder temperatures.”

Click here for more information >>> LaFarge Chronolia Weathermix

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Page updated: February 2012

 

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