A Guide to Recycled Concrete for the 2012 Olympic Village
Introduction
Mention the word demolition to almost anyone and the picture that instantly comes to mind is a vision of a building being blown up and collapsing to the ground. Many people have stated that they would love to push the button, to detonate the explosive devices which bring a disused building to the ground. In many cases what comes down, must go up and we are seeing many empty buildings being demolished to make way for future development, often as part of a regeneration project.
For companies who over many years have built their business around the demolition of buildings, the demolition sector is now far more reaching than just blowing up old buildings. Once the building is demolished the huge task of site clearance begins and in a world where consideration of the environmental impacts are high on most peoples agenda, the material residues from demolition need to be separated for recycling purposes. This will include such materials as steel, wood, plastic, brickwork and concrete.
Most of the materials can be bulked up and transported to the appropriate recycling plants for reprocessing. Materials such as bricks and concrete can be crushed and turned into a recycled concrete aggregate product ready for reuse in the construction of new roads or buildings. Increasingly though, through advances in technological development, residues such as concrete to be recycled have to meet a very high specification for reuse in construction projects.
Crushed into different grades of recycled aggregate will determine the future usage potential of the product. Large sizes could be used as decorative rockery products in gardening whilst much finer, almost shingle like product can be used as a bedding for pipe laying or as a layer in road construction. With an increasing number of opportunities identified for the reuse of recycled aggregate, the entire demolition and construction industry is making a significant contribution to sustainable development. Following demolition of a site, many demolition contractors have expanded their service offering to include site clearance services.
Reasons Behind the Increased Focus on Recycling from Construction and Demolition Projects
In 1996, UK Government imposed a tax on all wastes going to landfill. The tax is paid on top of normal gate fees for waste being disposed in landfill and since its introduction the cost has increased on an annual basis. When first introduced, the standard rate of tax for general wastes going to landfill was £7 per tonne and £2 per tonne for inert materials. The tax is designed to encourage commercial and industrial businesses and local authorities collecting from households, to divert waste away from landfill for recycling. In April 2009, the standard rate of landfill tax increased to £40 per tonne and is scheduled to increase each year by £8 per tonne until 2013. The lower rate of tax charged upon any inert materials going to landfill such as concrete and soils, has remained relatively steady in recent years and is currently at £2.50 per tonne.
However, the weight factor alone of a bulk load of these inert materials going directly to landfill will ensure that the entire cost of disposal becomes very expensive and so even in the demolition and construction sector, diverting waste from landfill is a priority. The introduction of landfill tax has been a key driver in encouraging greater diversion of inert materials from landfill, to be used in sustainable development projects.
The first stage of many new build projects requires the demolition of disused property before construction work can begin.
Next time you see a demolition project in progress or pass any construction site during a build programme, it is clear to see the volume of waste being generated. If waste is not in skips, piles of rubble will be stacked high. The placing of concrete waste in skips has been a major problem for waste contractors for many years. Having worked in the waste industry, I have seen skip lorries tipped backwards with the cab of the vehicle up in the air, due to the sheer overloading of waste skips with construction site waste.
Each year, the UK generates around 330 million tonnes of waste and it is estimated that around 90 million tonnes of this is from construction and demolition wastes. This figure has remained fairly constant since 2001. Around two thirds of this waste is usually recycled or reused in land reclamation or agricultural improvement projects. Since the late 1990s there has been a steady rise in the volumes of construction waste being recycled and this has been helped with advances in technology which have led to improved crushing technology to create more widespread use of different grades of recycled aggregates. There has been a real focus upon the UK construction industry to encourage greater recycling of waste on site.
In recent years, the construction industry as a whole has worked hard to encourage construction project managers to place a greater focus upon recycling on site. This has led to an increase in the recycling of all inert materials from site.
Prior to the introduction of the landfill tax all construction site waste including bricks and concrete would be bulked up and transferred to a landfill site for disposal. No consideration was given to recycling. There are now stringent regulations across the sector, coupled with an increase in environmental awareness, as well as the commercial benefits in ensuring that this type of waste is now recycled. There is also greater recognition of the vast array of opportunities to use recycled aggregates within the construction process on future construction projects or in areas such as landscaping or home and garden DIY. Following the demolition process, together the waste concrete, bricks, masonry etc will be transformed into a recycled concrete aggregate.
To recycle concrete aggregate to a high standard and resalable product, it must be entirely free of other contaminants such as wood, paper, card, steel and other general waste materials. The final product must also conform to the requirements of British Standard BS 8500. The process of recycling the concrete can usually be achieved in one of two ways. Some demolition contractors will install a crushing machine on the demolition site, whereas some contractors will prefer to transport the waste to be recycled, back to their own premises for separation for recycling or re-use. On projects where demolition and new construction is to take place at the same location, the contractor is very likely to locate a crushing machine on site to avoid incurring additional transportation costs in taking the material back to a sorting and crushing facility. There is now very sophisticated crushing equipment available to reduce concrete to a very fine specification.
Many well established demolition contractors have had to extend their services to include site clearance services.
The Increasing Demand for High Quality Recycled Aggregate
Before commencing the crushing process, it must be determined what the end product is to be used for to ensure that the recycled aggregate is to meet the required standards. There is huge requirement for recycled concrete aggregate to be used back in the construction process. As a product, recycled aggregate can be used for almost any type of concrete structural work, road surfacing or pipe laying project. Having passed through the crusher the chunks of aggregate will be sorted by size. Bigger pieces may be retained as a decorative product for use in garden rockery projects, or they may be passed back through the crusher to be crushed to a smaller size. The smaller pieces of recycled aggregate may be suitable for use as a gravel on new construction projects, road laying or driveways at home. The crushing machines are now capable of achieving good quality small aggregate grades such as the production of a 20-5mm gravel which can be bagged and used in the garden at home or bought in bulk as part of projects involving new concrete production. The advances in technology mean that the recycling of aggregates for other uses such as a simple gravel product or for use in concrete products has greatly reduced the need to dig quarries to mine for gravel.
The demand for high quality crushed aggregate is increasing. There are key standards in place which are focused upon improving the recycled concrete aggregate industry. Through research and development, more widespread uses are being identified for the use of recycled aggregate. No longer is concrete, just concrete. What we are talking about now are many different grades of recycled aggregate, ranging from the large chunks of aggregate to very specific 6f2 recycled concrete which can be used as a sub-base material for construction jobs, or 20-5mm recycled aggregate, which is a gravel and can be used in road construction or at home on driveways. As well as being used as a mix for road construction, recycled aggregate is being used as bedding for pipe laying or foundation material prior to construction projects commencing. In achieving such good quality grades the 20-5mm recycled aggregate can be used as an aggregate base in road construction and the quality meets the standards required to allow its reuse in concrete production.
One of the important criteria when using recycled aggregate is selecting the right specification for the task. For example, when using 20-5mm coarse graded aggregate as a road base, the thickness of the layer required must be determined to withstand traffic flows. Traffic flow on a motorway will be significantly different to that of a country road. One reason aggregate produced to a 20-5mm specification is used as a road base is that it aids good drainage. Once the recycled aggregate is laid, appropriate layers of asphalt or concrete can be laid over it to create the road surface.
In recent years, in the UK we seem to have more rain than sunshine and therefore the selected aggregate must be able to withstand variances in temperature and conditions e.g. dampness for long periods, torrential downpours, long dry spells. With its good drainage qualities, the recycled 20-5mm product is the perfect choice for many sand and gravel applications including, pipe bedding, driveways and footpaths, landscaping, plus for use in ready mixed and precast concrete products. With its drainage qualities, 20-5mm recycled aggregate is a versatile product.
Following demolition, contractors will use crushing machinery to produce recycled concrete aggregates from the waste bricks and concrete for use in future construction processes.
Recycled Aggregates and the 2012 Olympics
In its bid for the 2012 Olympic Games, London placed sustainability as the focal point of its bid. The bid team identified a major opportunity to increase awareness of climate change and the issues which surround it, and bring it to the World’s attention. With the eyes of the World watching, the Olympic Games present a unique opportunity to communicate key messages about sustainability. Throughout the entire development of the Olympic project, there is a commitment to make 2012 the most sustainable Olympic Games ever held. This focus began when planning the development and build programmes for the facilities and venues, the transport links and network, the hosting of the Games themselves and will end by leaving a long lasting legacy of a sustainable environment.
Since London was awarded the Games, all partners involved in the development requirements, from the construction of the Olympic Stadium, the Olympic Village and transport links to the venues have been focused upon ensuring the use wherever possible of sustainable materials. Across the entire Olympic build programme developers have worked hard to identify suitable sustainable materials for use in the build programme. At the end of the overall project there will be some clearly visible examples of the use of sustainable products.
qually there will be many more much less visible and furthermore, many which will be not visible at all. One of those products which visitors to the games and its many venues will not even think about will be how recycled aggregates have been specified as part of the overall construction project. But developers and specifiers of materials for use in the build programme will be comfortable in the knowledge that they have selected sustainable products including, the most appropriate recycled aggregates as part of the project. With its identified qualities, let’s hope that somewhere in the world wide TV coverage the 20-5mm recycled aggregate gets a mention somewhere, somehow. Imagine being asked to supply recycled aggregate which meets a very specific 20-5mm clean material specification, to help build the 2012 Olympic Village.
Conclusion
How times have changed in recent years for the demolition and construction industry. Companies have had to adapt to meet challenging environmental requirements. As with almost any industry, new regulations and legislation dictate the standards to which your business must aspire, if it is to be successful.
Businesses involved in the production of recycled aggregate are no different. These are classed as processed materials and must conform to a particular product specification which can be used in the construction process. The standard BS8500-2 offers a full specification for the uses of recycled concrete aggregates in concrete, although with such a vast range of recycled aggregates an all encompassing specification for the use of these aggregates is yet to be determined. The most important thing is that the industry does not stand still and wait for the specifications to be finalised. The versatility of recycled aggregates means that demolition contractors operating crushing plants are seeking to identify markets through which to sell their recycled products. The advances in crusher technology and machinery has seen a big increase in the options now available in supplying large chunks of recycled aggregate for landscape gardening use in rockeries, down to a gravel type 20-5mm recycled aggregate with its good drainage qualities for use in road construction and driveways. The demolition and construction industry now places sustainability at the forefront of its future development projects.
The Rhythmic Samba: Unearthing Incomparable Baby Bedding For Your Youngster
Crib bedding is the key part of a stylish nursery for your precious little girl. The first thing in planning the nursery is to search for safe linens that will make that newborn baby’s room look as beautiful as she is. Newly expecting parents will find plenty of useful information to help them decide before purchasing.
If you read up on infant safety, you will learn that you should avoid puffy coverlets and crib bumpers, which have been known to smother sleeping babies. Inappropriately sized linens can pose a choking hazard to your child so it is important your daughters bedding fits to standard crib and toddler bed dimensions.
Baby girl nursery bedding sets are usually held to strict safety requirements by honest vendors, and these sets tend to be the most cost-effective way to help assemble a nursery. Buying an appropriate crib set is certainly enjoyable, but presents a few obstacles that those new to the process of outfitting a baby’s room might not have foreseen.
The sheer amount of linens that are meant for baby girls will make itself apparent after only one online search. It seems as if only the online shopping fanatics are the ones capable to work computers well these days. If you list down your favorite colors and styles, you will be able to restrict the huge alternatives available.
Parents who like conventional furnishing, will get lots of completely charming and baby safe bedding sets to select from. Brown toile baby bedding is maintaining a good record of being used in the nurseries of a huge number of very fortunate little girls. The eighteenth century print was first created in France and its delicacy lends any decor a sense of calm and joy.
Within the last few years, toile has been brilliantly restored and parents consider them to be really pleasing. Nursery designers can choose to go the traditional route with white or blue tulle or they can choose multi-colored sets that have a trendy flare, such as pink and black or brown and green.
Cell Phone Cash Makes It Easy To Make Money
One of the great challenges of life concerns making money. How can you produce that sufficient capital in this economy to live well, pay all the bills, take care of your family, and have funds left over for retirement?
Well, there is no simple answer to this question. The fact is, there are a number of ways to make money in this economy. For example, many Americans dabble in the stock market these days in order to invest for the future. I make money via the Internet with a variety of jobs that involve working from home. This is the way money can be made in the 21st century.
How do you make a living? Did you graduate from college and tackle the job market with a BA or BS in some popular field? This is always a good route simply because it prepares us for the real world, but also makes it much easier for us to attain quality careers. However, many people don’t make enough money to handle everything on their plate.
This is where you should turn to the Internet for help. The World-Wide-Web is loaded with ideas and positions for all sorts of people to increase their income. I make money with Google Adsense. Have you ever tried this? Start your own catering business. A co-worker at my wife’s company sells chocolate treats online. She makes them all by hand in her own kitchen. This is a great idea for a home business, and the best part is she answers to no one. I was shocked at the money she makes this way.
With the Internet on our side, there is no reason why anyone who owns a computer can’t work from home. I make money by doing resumes. Since I achieved a writing degree, I might as well put it to use in any way I can. There are always more people in need of good resumes; so why not take advantage of this great opportunity.
When I told my uncle that I also make money with my cell phone, he was immediately jealous. He said, “Why didn’t I think of that?” If you are trying to find other sources of income, I highly recommend that you check out Cell Phone Cash by Maverick Money Makers. It is literally an untapped market where lots of money can be made.
Think about the number of people around the world with cell phones and that are constantly in need of products and services. There is no reason why you shouldn’t put your talents and dreams to use. Start making money with Cell Phone Cash today. If I can make money this way, so can you.
Rowing Machine Reviews
Ever wondered how a rowing machine works? Look at this…
Rowing machines are engineered to replicate the actual rowing motions used on the water. And just like the real rowing, exercising on a rowing machine tones and strengthens the upper and lower body. Home rowing machines are great for overall toning as well as cardio vascular exercise . Rowing is great for staying in shape, and works all of the major muscles — more so than any other single piece of cardio vascular fitness equipment. Rowing machines are designed to mimic actual boat rowing so that it feels as if you are pushing oars through water as you work the equipment. As an oar is pulled back and pushed forward with a fluid motion in real water, the water acts as the resistance.
Rowing machines are a great transition from endurance and strength excercises , providing a great cardio workout and strengthening your shoulders, arm, back and abdominal muscles. Rowing machines are geared to mirror the actual workout which is performed on water . Like actual rowing, working out with a rowing machine makes both the upper and lower body to exercise . Rowing machines are uncomplicated to use. You simply sit on the seat and move back and forth pushing the handles as you go . Your knees should be slightly when you are closest to the rowing machine’s base, straightening out as you slide back with the rowing stroke. Your knees should stay slightly bent at the furthest point of your stroke and you ought to keep your back straight at all times .
With that said , it’s challanging to find a more complete exercise routine with one piece of exercise equipment.
Purple Gemstones Compliment Your Style
Accessories really make an outfit, and you need to know what suits you. To do this easily, it is becoming more and more popular to use a color consultant to determine what does and does not suit you. And if you are one of those people who have purple, mauve, lilac, lavender, plum, wine, violet, indigo, aubergine, pastel pink or anything in between, co-ordinating your purple outfits with your jewelry has never been easier.
Why? Well because celebrities have made purple gemstones a hot look. And wherever the celebrities go, the High Street and Shopping Malls are sure to follow!
Gemstone amethyst is a hot look!
According to folk lore, Dionysus, the God of Wine was angered when two mortals slighted him. He took revenge by setting two tigers onto the next mortal who passed his way; this was Amethyst, who was on her way to pay tribute to Diana. Diana transformed Amethyst into a gleaming white crystal to prevent her from being torn apart. As Dionysus relented he spilt his wine, staining the white crystal a deep purple color, and creating amethyst gemstone.
Many semi-precious gemstones can be found in large carat weights, from time to time. This is important because it means they can be clustered to create a high impact look! And with bargain hot looks being so easy to find online, why not treat yourself to some sublime purple jewelry!
If you are looking for the perfect hand made amethyst rings at affordable prices, or maybe a choice of hand made, artisan designed unique amethyst necklaces or a selection of amethyst stud earrings in a wide range of styles, please click on the links.
DIY Interior Painting
People decide to paint the interior of their homes for a variety of reasons. Some do it for decor reasons, and others do it because things are starting to look dull and worn. Before you attempt painting the interior on your own, there are several things you need to know to end up with a great new look you love. The benefits of doing it yourself is mainly about saving a lot of money. Take some precautions for safety of those in the home and also be aware of how much you are spending.
Before you start interior painting in any room, you should have it cleared out. You can pile things in the middle of the room if clearing things out is not an option, but having the room empty is a good idea. You should get some good drop sheets so that any spills or drips are caught before hitting the floor. Even the most cautious people have accidents, and you want to protect your belongings. If you do not have a lot of space and have to put everything in the middle of the room, make sure you cover everything completely to avoid having to buy new furniture as well.
Before you start your interior painting, you should make sure your surfaces are clean. This might mean you have to do some scrubbing, but it is going to make the difference between a good job and one that looks awkward in many places. After you have cleaned and dried your surfaces, you can begin your interior painting, but make sure you pay attention to the details. Cut in and paint all of the hard spots with a brush that you can not get to with a roller first, and make sure you learn to make even strokes. It is always a good idea to apply a second coat.
Triathalons–One Guy’s Experience
Let me tell you a little bit about a sport unlike any other. Let me tell you about a sport that is in a category all by itself. Let me tell you about a sport with unappreciated challenges. Let me tell you why it’s not for sissies.
I’d like to talk a little about the sport of triathlon, and why it is the best. First it is made up of three sports in one. To be the best it isn’t good enough to be just a good runner, or a good, cyclist, or a good swimmer. In fact good in any of these categories is simply not good enough for anything but second place, and second in my opinion is just the first looser.
In most triathlons the order is as follows swim, bike, run. I would imagine that you swim first because race organizers and directors wouldn’t want you to drown from fatigue if it were in any other order. However, I have seen it in different order before.
There are a few different types of triathlon. Let me begin with the sprint distance. This is generally about a 300 to 500 meter swim, followed by a 13 to 18 mile bike ride, wrapped up with about a 5k run. Next is the Olympic international distance triathlon. This is a bit longer and tougher. It starts with a mile swim, not a walk in the park some people can’t even make it passed the swim. Then you transition to a 25 to 30 mile bike ride. Don’t misunderstand though; this is no casual ride through your neighborhood. Competitive speeds for top level athletes average 20 plus miles per hour. Then from the bike you make your way to the 10k run to the finish. Last and certainly not least is the grueling ironman. First you begin with an unparalleled swim of 2.4 miles. Then if you’re still standing upright make your way over to the 112 mile bike portion, which is just as long as some of the Tour De France stages, need I say more. Cap this bad boy off with a marathon distance run of 26 miles 385 yards and you’ve done it.
So, what do you think are you up for the challenge?
The author also owns websites about Marquees For Sale and Marquees On Sale. To learn more, check out his site at www.MarqueesForSale.net.
Web Design Calpe
Why Every Local Business in Calpe MUST Have A Website
Do you own a local Calpe business? If you do, then your business absolutely must have a website if you’re hoping to remain competitive in your marketplace. Web design Calpe know that mMany business owners don’t realize this. They think, “sure, if you’re doing business online like Amazon or eBay then obviously you need a website. But I’m not selling my products or services online, just locally, so I don’t have any need for a website design in calpe.” That sounds sensible at first glance, but they couldn’t be more wrong.
Because times have changed, and the way people get information has changed, too. Radically.
Ten years ago, a local company who offered web design in calpe could get by without a website. Back then, the Internet was new, and not every family had a computer hooked up to the worldwide web. And, for many of those people who were online, the Internet was sort of exotic – it was something of a hobby. They would spend their online time in chat rooms talking to new friends all over the world, or looking for Beanie Babies on eBay, or downloading the latest cool game.
Businesses in Calpe these days should be going all out for lead generation. The current economic climate here in Spain means there is just no other way to run a business at the moment. Make sure your website has a lead capture page and that all leads are collected and marketed to effectively.
Nightmares of the water type
What a time I’ve had lately it all started with a problem with my tap leaking well in any case I sought to find a localised plumber in the local telephone directory – who could surface within a week no luck there In Any Event I decided to do a search on google for Newcastle Plumbers. Hit gold with that one there they where online .Anyway I filled in the contact form and within about 15 minutes I received a telephone call to set up an appointment .That’s what I call service.To cut a long story short they came out the very day and where quite a bit cheaper than the firm who would not get to me for about a week.
Not long after the original problem was resolved don’t I get a phone call from a friend stating somebody has crashed into his motorcar from behind and are denying any responsibleness. Not actually certain how that works as they clearly drove into his motorcar. Well hot on my success with google and the phantom plumbers don’t I get online and go searching for a Solicitor in Newcastle for him. Just on the off chance that his insurance policy has some little little clause about legal costs who knows?
On a happier note somebody I know has made up one’s mind to expend some of their redundancy on purchasing a delivery business. Not really certain if they have done as much research as they should ahead of going for it .I have assured them that they require a Accountant in Newcastle to look at the books as these people recognize incisively what they are looking at. For the cost it may well save him thousands if the business is going to close or hopefully the accountant will turn around and say that it seems like a profitable business go for it.
So all in all the last few weeks have been quite eventful around here. Looking forwards to a few dull weeks now with no leakages or phone calls about car accidents.
Benidorm, Alicante & Pamplona Climate & Temperature In Winter, Spring, Summer and Autumn
The Benidorm temperatures in the February winter month fall in the region of a minimum of 7 and a maximum of 14 degrees on average. After winter comes spring and the Benidorm climate warms with mean temperatures in May in the range of 14 to 21 degrees celcius. In August the summertime Benidorm temperature range is from an average low of 21 degrees to an average high of 27 degrees celcius. Average temperatures beging to fall in the autumn so that in November the Benidorm climate has records of mean temperatures of between 11 and 16 degrees low and high respectably.
The Alicante temperatures in the December winter month fall in the region of a minimum of 7.3 and a maximum of 17.6 degrees on average. After winter comes spring and the Alicante climate warms with mean temperatures in March in the range of 8.2 to 19.2 degrees celcius. In June the summertime Alicante temperature range is from an average low of 17.1 degrees to an average high of 27.2 degrees celcius. Average temperatures beging to fall in the autumn so that in September the Alicante climate has records of mean temperatures of between 17.8 and 28.4 degrees low and high respectably.
The climate of Pamplona in the winter is cool with mean temperatures in the night falling to 1.2 degrees in January. In the day time temperatures reach a maximum of 8.4 degrees. Later in the year temperatures in Pamplona in April reach 15.5 degrees by day falling over night to 4.9 degrees celcius. In July the Pamplona temperature is in the range of 13.7 and 27.6 degrees before the Pamplona climate begins to cool in October when the mean maximum temp is just 18.7 degrees. At this time of the year the mean low temp is in the region of 8.4 degrees.