Exclusive video interview with new Red Rhino owner…

Simon Winfield has taken over Red Rhino; and Demolition News cameras were there first.

In an exclusive interview for www.demolitionnews.com, the new owner of Red Rhino reveals his hopes and aspirations for the compact crusher brand.

Armac puts the lights out…

Armac uses Cat high reach machines on lighting factory demolition

For demolition specialist Armac Group, turning the lights off took on a whole new meaning, when it was awarded a six month contract to demolish an old GE lighting factory next to the A10 in Enfield, London.

Following video courtesy of Finning TV:

Already at the halfway point of the project February saw the start of its most challenging phase, to demolish the seven storey high main GE lighting office building. Located just a few metres from the busy A10 main road connecting Enfield to Jct 25 of the M25, demolishing the main office structure required a very delicate approach, which involved the supply of a specialist 40 metre Ultra High Demolition Rig boom attachment by Caterpillar dealer Finning, for Armac’s Cat 385.
For a high resolution image please click on the image (left) or paste the URL at the base of this email into your web browser

Delivered to site by Finning on 3rd February the ultra high boom was assembled in its three parts onsite. Secured to the end of the ultra high boom was a Caterpillar MP20 work tool capable of delivering 3000kN force.

Complete with cab protection and tilting operator cabin function for greater visibility, the Cat 385 has been joined on-site by Armac Group’s Cat 345 high reach demolition specification excavator with MP15 concrete cutter jaws work tool. Working together across the building from corner to corner in a controlled demolition process, the Cat 385 and Cat 345 excavators ensure the building is taken down safely piece by piece.
With the Cat 385 concentrating its 40 metre reach on the top three floors of the 7 storey structure, the Cat 345 with its 26 metre reach is able to work the lower floors in sequence. With dust suppression equipment used to control any dust falling from the building to prevent it from landing on passing vehicles, the two Caterpillar excavators will be working more than 100 hours to complete the demolition of the main building.

For a high resolution image please click on the image (right) or paste the URL at the base of this email into your web browser
Commenting on the project and the use of its new Cat 385 UHD on-site, Adrian Mclean operations director said: “Because the main office structure was positioned so close to the extremely busy A10, as part of our assessment process, we recognised that we would not be able to use more conventional methods of demolition, due to the risk of falling debris hitting a passing car.

“In order to safely take down the building, we needed to use an excavator with a boom reach of 40 metres. We were therefore faced with a height dilemma as our Cat 345 with high reach boom we already had could only reach up to 26 metres. Recognising we had a 12 metre shortfall, we approached Finning to see if they could source a Cat 385 UHD model. Given the tight programme time constraints of the project, we had to rely on Finning to source and turn around delivery of the machine in order for us to stay on course to deliver the site to our customer.

“Not only did they achieve this, they were also able to assist us with putting the new boom together and realigning the machine, fitting new hydraulic pipes and testing the performance before we put it into action.

“Even though we were able to turn this process around, we did not rush back into the job, as we wanted to make sure our operator had enough time to get to grips with the control and safe movement of the Cat 385 with the new boom. This operator adjustment phase is particularly important, as even though we are fortunate enough to have a very skilled team, when you are used to operating a machine with a 26 metre boom and are then asked to operate a different machine with a 40 metre boom, it takes some getting used to. One of the main challenges for example is simply looking to the end of a longer boom as everything is that much further away!

“After we successfully completed this process we were able to attach the MP20 work tool and put the machine in to action. By the end of February we expect the Cat 385 and Cat 345 to be well into the job as they are working really well together.”

With the site itself measuring some 8 acres Armac Group is also using one of its Cat 320 excavators with various attachments to assist in the demolition of other lower lying buildings and the processing of demolition waste. With the demolition phase due for completion at the end of February the site will then start its rebirth housing a Premier Hotel, Toyota Car dealership and Yellow Box Storage facilities.

Keltbray demands discount…

UK demolition giant demands supplier discounts.

UK trade magazine Construction News is reporting that Keltbray has sent a letter to suppliers asking for a 10 per cent discount on all invoices dated from 1 March onwards.

The demolition and civil engineering contractor says that firms who do not support the measure may face “repercussions on future trading with Keltbray”.

Read the full story here.

SED not keen on criticism…

Negative comments removed from Contract Journal forums

Regular readers will recall that I recently posted an article called “6 reasons why SED 2009 might suck“. As a continuation of this theme, I made my thoughts clear on the forums run by Contract Journal which, coincidentally, is owned by Reed Business Information which also owns the SED show.

After a bit of good-natured to-ing and fro-ing, my posts were edited and then removed altogether due to what was described as “spamming”..

I have, therefore, asked for my profile to be removed from the Contract Journal forum and will be concentrating my efforts on a website where free speech is not just allowed by actively encouraged.

Demolition of Californian food store…

New video showing demolition of a derelict food store in California

We have added the following video because it shows the demolition of a derelict food store from the angle of the local authority, property owner and Dunn Company, the demolition company responsible.

However, we can’t help thinking that this contract could have been just as easily completed with a large sneeze instead of two excavators, such is the condition of the structure.

The Detonators – Online NOW…

Discovery Channel offers online previews of The Detonators

The Discovery Channel has placed some good pieces of its series “The Detonators” online. Unfortunately, due to copyright, we’re unable to embed these videos here but you can view them at very high quality using the links below:

Detonating Cord
Concrete under tension
Power Plant Chimney
How to drop a bridge

Enjoy

Demolition by cannon…

An object lesson in how demolition SHOULD NOT be carried out

Now here’s something you don’t see everyday; demolition by cannon!

Volvo helps contractor Cope…

H. Cope & Sons takes delivery of new Volvo high reach.

A brand new Volvo EC360C Ultra High Reach machine has been delivered to UK demolition contractor H Cope & Sons of Grimsby to take over primary demolition duties on a prestigious rejuvenation project of Grimsby Docks.

Replacing a B version machine, the new EC360C has been supplied to H Cope and Sons with a Volvo designed and manufactured three piece demolition rig giving a maximum pin height of 21 metres and tool weight of 3 tonnes. The Volvo solution to total utilization of the machine from a standard digging machine to high reach demolition tool can be realised in just 30 minutes. The Volvo hydraulic modular joint features two full length pins which engage on the desired equipment – either as backacter, straight boom or demolition boom. A hydraulic joint secures the locking pins to which safety caps are added making the machine ready for operation. Further standard features to the Ultra High reach specification include a hydraulically tilting operator’s compartment; heavy duty belly plates; the Volvo SIPS (side impact protection system); five tonne additional counterweight, double thickness to side panel doors and X3 grab rotation hydraulics in addition to the standard hammer shear hydraulic circuit.

The new EC360C powered by a Volvo 12 litre Tier III engine producing 250 nett hp, joins a fourteen tonne EC140B and twenty one tonne EC210B in H Cope & Sons fleet and was chosen thanks to Volvo’s high level of after sales support for their existing machines. “We had some issues with the EC360’s predecessor but Volvo stood by us and worked them through so we’re pretty impressed with their commitment and support,” said Director Chris Cope, citing in particular the benefit of having a Volvo home based engineer in the vicinity.

The EC360C Ultra High Reach with its revised operating mass of 49.8 tonnes has been put to work demolishing old dwellings and warehouses on Grimsby Docks as part of a significant rejuvenation initiative.

Established as a family concern some forty years ago by founder Horace Cope, the Company is now run by three of his sons – Stephen, Andrew and Chris. With its core activities centred on demolition contracts, the Company also operates a skip hire and recycling division as well as a concrete batching plant servicing Grimsby and North East Lincolnshire.

Damping the dust in DC…

DustBoss equipment controls dust on a mall demolition project in the US capital.

One of the Washington, D.C. area’s most experienced demolition contractors has successfully controlled extensive dust from taking down the old Waterside Mall, a 4-storey, heavily-reinforced concrete structure totaling 111,484 square metres. Crews were able to effectively suppress both surface dust and airborne particles with portable high-performance misting equipment, despite the crowded urban location and close proximity to the local Metro station tunnel entrance — 21 metres from the razed structure — in what has been called a “surgical” demolition project.

Engineers from Wrecking Corporation of America (Alexandria, VA) knew from the outset that the densely populated area and close proximity to remaining structures would require extraordinary precautions. “The Metro station entrance has a way of creating a vacuum,” explained executive VP Terry Anderson. “If the wind is blowing the wrong way, the dust gets sucked right down. The site was also hemmed in on three sides by structures that needed to be preserved, so we had to do a very selective removal, while protecting the entire surrounding area from the nuisance and potential hazard of airborne dust.”

After researching possible solutions, Anderson decided to rent a DustBoss DB-60. As the largest of the suppression designs from Dust Control Technology, the unit atomizes water droplets to the optimum size for particle capture, launching them 60 metres or more with a powerful 18 kW fan that generates nearly 850 cubic metres per minute. With its built-in oscillation, the DB-60 can effectively cover nearly 0.2 hectares with a fine, dust-trapping mist.

The DB-60 is a fully automatic ducted fan design, mounted on a wheeled carriage so it can be easily located to accommodate wind direction or specific work areas. The unit delivers adjustable elevation from 0-50 and a 40 degree oscillation range, providing WCA crews with outstanding coverage.

“The droplet size is critical to effective suppression,” explained Dust Control Technology CEO Edwin Peterson. “Dust particles tend to be in a fairly narrow size range, so the water should be atomized to droplets near that same size for maximum attraction. Our standard models produce droplets from 50-200 microns, but all of our units are designed to be easily customized for targeting specific particle sizes or for cooling applications,” he said. Peterson observed that the nozzles, fan and other components must also be designed to work together for optimum flow, spray angle and delivery pressure to achieve the necessary droplet size, velocity and distribution.
Anderson’s crews run the DB-60 with power from a portable generator and water supplied by a fire hose. A 7.5 kW booster pump elevates water pressure in the DB-60 as high as 200 psi for outstanding particle suppression. It can also be outfitted with a dosing pump to accurately meter odor control additives or surfactants to further enhance binding of dust particles.

WCA began the project in November of 2007, and the old structure did not go easily. “This was one of the more difficult buildings we’ve taken down in some time,” Anderson admitted. He has no explanation for why a decades-old mall was built with 20-inch (51 cm) floor slabs, when the standard is about 23 cm. “We had to fight down every step,” he said. It’s also the largest contiguous building that the company has ever removed.

In addition to the crowded urban environment, the project was complicated by structures that had to be preserved, including a deli attached to the nearby grocery store. Unfortunately, sections of the structure to be demolished were directly on top of it. “We saw cut through the 20-inch slabs of concrete,” Anderson continued. “Then we had to carefully remove all debris, while protecting the integrity of the buildings to remain and controlling the large amounts of dust that were generated by all those activities.”

WCA employed a high-reach excavator for the general demolition work, a 45,359-kg Komatsu PC400 with a 26 metre boom. Kinshofer dedicated shears with 360 degree rotation were used for cutting the extensive amount of reinforcing steel, more than 5,000 tons overall.
Anderson’s crews also made extensive use of a 90-ton truck crane and wrecking ball. “It’s a technology that virtually never breaks down,” he said. “And it leaves a small carbon footprint.” WCA also used a 63,503 kg Caterpillar 365 track-mounted excavator to take down the structures, along with three Hitachi 450 excavators with bucket attachments and four Hitachi 330 excavators with a variety of attachments that included concrete pulverizers and demolition hammers.
WCA performed all concrete crushing and recycling on-site, with an Extec C10 crusher used to process approximately 53,519 cubic metres of material. The crushed product was used for non-structural fill and backfilling.

“By nature, concrete work generates a lot of dust,” Anderson concluded. “We felt we had to take strong measures for control on this project. The DustBoss did such a good job that we decided to purchase the unit,” he added.

Gives a whole new meaning to football training…

C&D offers free football tickets for course bookings

Tipton-based C&D Consultancy is offering FREE football tickets for a series of English Premiership matches at the nearby West Bromwich Albion ground for anyone booking two or more training courses TODAY.

Full details can be found here.