Filed under General by Doc on June 2, 2009 at 8:47 am
no comments
Introduction
The definition of the word ‘demolish’ is deliberate and controlled collapse of a structure. In the late 1970′s Fred Dibnah became the most famous steeplejack in Britain when his work on demolishing tall chimneys without the need for explosives was shown on Television. Fred was an specialist on repairing tall chimneys, so when it came to taking them down he knew just how to do it. He would cut an alcove at the base of the chimney, and then place wooden props to support the structure. By carefully positioning the props, the chimney would collapse in the right direction when the wood was set alight and burned away. Once he was nearly crushed when he miscalculated demonstrating how dangerous demolition work is.
The actual word to demolish only came into being in 1570, and was used after that to mean the deliberate taking down or destroying of a building or structure. Although in fact the process of demolition in some form or other has been occurring for thousands of years. Buildings have been destroyed either by natural disturbances of the Earth’s crust or during battles or attacks on towns for as long as there have been structures. The remaining ruins would be removed and rebuilt or used for other buildings nearby and must be the first examples of recycling.
Preserving the past – preparing the future.
To preserve Britain’s history of agriculture the land between built up areas of the villages and towns is protected from development of urban sprawl. This land is known as Green Belt and is preserved for farming which is vital to the continuing economy of the country. By containing the Green Belt, urban areas are squeezed to provide housing, so developers have to be more creative to find suitable sites.
Britain is a country with a very dense population per square mile. The amount of land available for development is limited compared to other countries. Therefore there is always a high demand for space on which to build. Taking down old and unused buildings and replacing them with new is one way to counteract this shortage.
Land that may be disused industrial and commercial sites, but could be contaminated with hazardous waste or pollution, are called Brownfield sites. Once the land has been cleaned up they are potentially valuable for redevelopment. Both Glasgow and South Wales created gardens out of old industrial sites and put in Shopping centres to attract visitors.
Greyfield sites are distinct from Brownfield sites in that they do not have the environmental concerns of toxic waste. The term greyfield comes from the large areas of asphalt which had once been car parks of commercial urban properties. Their value is in the fact that the infrastructure such as roads, electricity, water, sewage, and gas is already in place. These urban areas are underutilised or abandoned and are valuable because require very little remedial work to be utilised. Cities such as Leeds and Manchester have had a massive programme of converting the old warehouses or factories into apartments, shops and restaurants, retaining the original shell and refurbishing the interior into desirable accommodation.
The Demolition process
A skilled demolition contractor will have taken careful consideration of the points below.
• The construction and size of the building.
• What items are valuable for re-use?
• How will the old site be re-used?
• How is the waste to be disposed of?
• Electricity water, sewage and gas mains.
Hydraulic excavators and bulldozers can be used to undermine the walls at the base, so that the structure will topple; at the same time controlling the manner and direction of the fall. Safety issues are paramount, and clean-up strategies are also taken into account when determining how the building will be demolished.
Traditional Demolition
Once all the services were disconnected, the men and machinery would go in and just knock down the walls. The whole structure would collapse and the resulting debris would be piled onto lorries and disposed of in landfill sites. Concrete foundation would be broken up by pneumatic drills and the site would be cleared of rubbish. However today demolition practices are subject to strict planning, safety and monitoring regulations and are highly controlled by the local authority.
Deconstruction and Recycling
The new approach to demolishing buildings is known as deconstruction – a green approach. Landfill sites are in short supply so the aim when demolishing a building is to diminish the amount of waste remaining.
Small structures such as two or three storey houses can be dismantled quite easily. The work may be a painstaking task of dismantling by hand – brick by brick – or beam by beam but by going carefully valuable materials are preserved for re-use. The value of deconstruction is that 90% or more of waste is saved from going into landfill sites and reclaimed materials can be re-used and recycled for future buildings. The farmer opposite my house sold his barns in the farm yard for housing; when the builder demolished the barns he cleaned up the bricks and reused them for the wall around the farmhouse thus retaining the character of the farm.
Modern techniques and machinery allows demolition companies to efficiently segregate waste types on or off-site. Construction materials are recycled and re-used whenever possible in the new structure making significant savings in project costs as well as being good for the environment.
Concrete can now be rapidly broken up with a new machine called a guillotine.Crushed material from the demolition can be used as a sub-base for the new building foundations or used on other sites where construction is underway.
Copper pipes, lead, roof tiles or slates, floor tiles, wiring and doors, and wood panelling are valuable objects that are saved for recycling and re-use. Many specialist firms sell reclaimed old or antique building items in most towns and cities.
Tall Buildings
Tower blocks and chimneys are the type of tall buildings that may need to be demolished. The demolition of tall buildings necessitates expert techniques. The tallest building to be demolished lawfully was in 1967/8 of the Singer Building in New York. The collapse of the World Trade Centre after the 9/11 attack in 2001 illustrates the terrible devastation that occurs if the demolition is uncontrolled and haphazard.
In the demolishing of tall buildings and large structures a wrecking ball on a crane can be used, but is rarely practiced because the swinging ball is rather uncontrollable. The proximity of other buildings is a determining factor which prevents the use of explosives to implode a tall structure. So ‘High Reach’ demolition excavators are used where other methods are not possible to demolish the top part of a tall building. Once it is down to a manageable height demolition can continue in the usual way. The various methods of demolishing tall buildings are by implosion using explosives, controlled collapse and piecemeal. To control the dust produced in demolition, water hoses and spray equipment are sometimes used and then it is called a wet demolition.
Explosions
The use of explosives in demolition is very specialist work and getting it wrong would be catastrophic. If for instance there is atmospheric pressure from low cloud above the implosion site, the shockwave may spread outwards instead of upwards causing the wave of energy and sound to break windows. If an implosion is not prepared correctly the danger may be damage to surrounding buildings where flying debris may cause injury to spectators.
For many people when they think about demolition they may have in mind the use of explosives in the dramatic collapse of a tall building. This process is actually called implosion using explosives. Implosion is essential for dense urban areas as it brings down a tall building so that the surrounding environment is damaged as little as possible. The collapse takes only seconds for the building to fall into its own footprint.
Because of the dangers of working with explosives they will only be used when other methods are too costly or impractical. Where there is a partial collapse of a building and there are still primed explosives that failed to go off, workers are in great danger because the remaining structure is highly unstable. At the same time the demolition has to continue to secure the safety of the site.
Health and Safety
The work of demolition is a much more technical and complicated process than most people would appreciate. The job is highly dangerous and requires experienced and skilled operators to carry out the work. It is essential that personnel working in the industry are adequately trained. Health and safety awareness is crucial in demolition services so it is advisable for operatives to have gained a Certificate of Competence in Demolition to ensure safety for both workers and public alike. All demolition work is regulated by the Construction, Design and Management Regulations.
Sequence of Demolition
An incorrect sequence of dismantling will result in premature collapse of a building because the stability of any structure is reliant on the interdependence of its component parts. Think of a house of cards and what happens if one of the supporting cards is removed.
There is a strict sequence of events before any demolition can take place. Councils throughout the country will have their own specific list for planning approval in their area, but a typical order would be as follows:-
• Provision of Information
Information must be provided about the construction of the structure to be demolished. Details of its previous use and the appropriate demolition methods to be used, including disposal of hazardous substances, have to be submitted by the demolition company.
• Survey of Demolition
A thorough survey of the site to identify any structural problems, as well as risks associated with hazardous or flammable substances, will need to be discussed in detail with the authorities. (E.g. A disused garage where petrol has been stored is a potential fire hazard so preventative measures will need to be taken).
• Preferred and Safe Method of Work
A reputable demolition company will be able to select the appropriate method of disposal showing the outline dismantling process. Planning is essential for meticulous monitoring. The authorities will require a detailed statement of the safety procedures to used, and all parties involved need to agree the methods before any demolition can take place.
• Preparation and Planning
Issues such as asbestos abatement, rodent baiting, dealing with hazardous substances, disconnecting utilities, and making safe any electric, gas or other services have to be shown in the planning stage. There is a lot of preparation to be done before even starting work on demolishing the building itself.
• Protection of the Public
Safety cannot be compromised so where there are heavily populated areas around the demolition site the protection of the public is paramount. Any health hazards will need to be assessed and temporary services arranged, and people disturbed will have to be informed.
Before dismantling works begin ensure your demolition contractor has used a similar process to gain demolition planning approval.
Conclusion
The aim in demolition is to eliminate an unwanted house as safely and quickly as possible and in our modern environment efforts are made to recycle or re-use most of the old material. This is not a new idea although the word itself is relatively modern. On the borders between England and Scotland after the Romans left, a large part of Hadrian’s Wall was hauled away and use was made of the beautifully dressed stone to construct the new buildings in the towns and villages nearby and some are still standing today.
Demolition work by its nature is a very hazardous business and demolishing any building is a complex and skilled process. Next time you see demolition work occurring on a building give a thought to the people who work in a dangerous situation daily and how much is involved in the meticulous planning, regulations compliance, care and skill that goes on to carrying out the project to clear the way for our future.
Filed under General, Reviews by Doc on June 2, 2009 at 6:18 am
no comments
Most people today spend hours driving to and from school or work each week. They find themselves with a commute which they cannot change. Although they have to travel each day, that doesn’t mean they can’t be productive while traveling or at least enjoy the time spent on the road. Another fact is that more and more people today own an Apple iPod mp3 player.Â
Of course most everyone bought the iPod for the capability of playing your favorite music but there are many other uses of this great invention. College students can record their class lectures and transform them to mp3 format and play them back via their iPod mp3 player. In fact, there are thousands of books are available on cd in mp3 format today also. Obviously there is a huge variety of music which can be downloaded as single songs and full albums for your mp3 players also. You’ll be amazed at the huge variety of ipod mp3 player accessories available.
As most cars today have better then average sounding audio systems, it would be great to be able to play your recorded lectures or music through your car sound system. A few years back you could spend a day searching specialty stores looking for the right ipod car adapter for your specific vehicle, but those days are over. I’ve found a website which offers great ipod adapter information as well as the largest variety of iPod mp3 music adapters and accessories I’ve ever seen.
Finding the correct mp3 music player adapter isn’t very difficult. If you have an after market receiver like Clarion or Pioneer, just select the correct brand ipod adpater. Of course if you have the original manufacturer’s receiver, just find an adapter made for your specific vehicle be it Ford or Honda or whatever. This is actually quite easy when you have access to a good variety of brands. You will find vehicle specific adapters made by USA Spec, Soundgate and various other manufactures to apply to just about any brand of car or truck.
Once you get your ipod adapter, you’ll be able to listen to your favorite music, audiobooks, lectures, podcasts and more right through your car’s sound system. Your commute will become more productive and enjoyable and will seem much shorter.
Filed under Reviews by Doc on June 2, 2009 at 4:49 am
no comments
When I was a kid growing up on the Jersey shore, I recall there hardly was a day that went by in the summer when I wasn’t out on someone’s boat. Back when gas was cheap, we’d spend all day long riding on the local bays and rivers}. In those days, the only option for music was bringing along a decent portable transistor radio. Boy how things have changed since those simple times. Today most boat audio systems would compete with your high end car or truck’s sound system. In fact the huge range of available marine accessories and especially boat electronics can be a bit over whelming.Â
Today it would be near impossible to find yourself on someone’s boat which didn’t have a good stereo system. The single biggest mistake that boat owners make is buying a standard auto sound system and installing it into their boat using the same installation techniques they used when they upgraded their car’s sound system. This usually proves to be a complete waste of their hard earned money since standard mobile audio and video products are not made to stand up to the harsh marine environment. Just speak to any sales person in a custom car sound shop along any shore area and see how many customers come in with receivers or speakers completely ruined after one season of use in their boats. Don’t make that mistake, when installing a video or audio system in a boat, always be sure to spend a few bucks more and buy marine grade electronics. You will find excellent prices and selection of all boat accessories online
Today’s boat receivers are capable of playing CD’s, MP3, WMA files and many will receive satellite radio and have connections for your MP3 player as well. Remember that unlike the relatively controlled sound level in your car or truck, the boat environment has a lot of competing noise to overcome. In most cases you’ll see the wisdom of installing an audio power amplifier to provide your speakers enough power to overcome the noisy boat environment.
Although these audio and video components might be called marine grade, you should be aware that this usually means the products are made with materials that will prohibit corrosion and they are not really water proof. So care has to be given as to the location of your installation. This is a good reason to consider the wired remote control units which enables the amplifier and receiver to be mounted inside a cabin while the remote can be outside where you spend most of your time. Of course your speakers have to be out on deck as well since this is where most of your time will be spent. So care should be taken to install them in locations where they will not be exposed to constant splashing from waves. If you intend on installing a good audio system in your boat, be sure to click through and read the entire article on Selecting a Boat Audio System.
Â
Filed under General by Doc on June 2, 2009 at 4:10 am
no comments
A few years ago you had very few choices in what type of bicycle you would ride. Most bicycles were simple single speed bikes with coaster brakes. Your top speed or long distance riding was dependent upon your leg power and nothing more. I remember when the first mountain bicycles made their way to the market with straight handlebars which provided a more upright riding position. The only problem I noticed was the hard ride provided by the standard mountain bike tires.
Somewhere around mid early nineties, some of the big name bicycle manufacturers started with basic versions of what we now call hybrid bicycles. In the beginning they simply took a popular road bike and changed out the handle bars and tires. Most shipped with a tire the same size or just a bit larger then their road bikes, only with a bit of more aggressive tread. Generally speaking the early hybrids were a bit more comfortable then the standard road touring bike but their tires were not great for streets and only good for gravel or dirt paths off road.
Today, it isn’t difficult to get confused between terms like mountain bikes, comfort or cruiser bicycles and hybrid bicycles. Comfort bikes are generally for soft and easy riding with seats we’d refer to as old fashioned cruiser style bicycles. These are comfortable for easy riding along asphalt roads, dirt paths and beach areas. You’ll probably tire of this bike quickly if you want to do any distance riding or use your bike for commuting to work or school. But they are great for short trips.
The typical mountain bikes today provide a good upright sitting position with adjustable seat height and handle bars. They might provide from 18 to 24 speeds via handle bar twist grip shifters. Most mountain bikes will have front fork suspension and many will also have rear wheel suspension. There are various schools of thought on the value of front and rear suspension. Some riders feel it provides too soft a ride for serious hill climbing while others appreciate the smoother ride. The simple truth is that most who ride mountain bikes never do any serious off road riding or hill climbing but buy this style bicycle due to the appearance or upright riding position.
A hybrid bicycle are somewhat of a multi-purpose bicycles that incorporates features of mountain bikes as well as road bikes. Unfortunately, the price is usually more expensive a bit higher then mountain bikes. A good alternative to buying a new hybrid might be just to upgrade your current bike. Most all bike owners will saved their bicycles years after they stop riding. The first thing to consider is where you can find a good variety of bicycle parts for sale. I suggest reading the entire article to help you decide if a Mountain Bike or Hybrid is Best for you.
Filed under General by Doc on June 1, 2009 at 8:09 am
no comments
Traditionally, deer hunting blinds are used to spot and hunt deer in the wild, hidden among the trees of wooden areas where deer tend to feed and drink.
However, most of these have been commercial products erected in specific deer hunting grounds that are highly commercialized and often part of a deer farm or preserve, where hunters pay to use the land, stay in a cabin or lodge, and make use of blinds on the property.
Of course, some people have long found that they can catch deer practically in their own backyards, hunting in woods near their homes. The problem has arisen with the inability to hide adequately and keep from spooking the deer by making noise or leaving scents down on the ground. However, there are ways to avoid both situations with prefabricated deer hunting blinds. No longer do you have to struggle to build your own blind or pay to use one elsewhere. Instead, you can use a prefabricated construction set and build your own blind.
These units simplify the angles and tower construction so that you can build a rock solid blind on your own, and best of all, they are often easily disassembled and reassembled so that you can transport them to other exciting deer hunting locations for use. Look for steel brackets on your prefabricated deer hunting blinds to assure their sturdiness upon construction, and look for units that offer custom sleeves into which leg posts and framing can easily slide for safety, security, and ease of assembly.
Ultimately, you should be sure that whatever deer hunting blinds you are looking at come with detailed assembly and disassembly instructions so that there are no questions and the safety of the unit is not compromised by guesswork. Also, don’t settle for an expensive setup when you can find something of the same quality for less money. There are plenty of inexpensive units available so that you don’t have to waste time and money. Keep in mind also that deer hunting blinds should assess the basic needs of a hunter and do not need to be luxurious or any particular beautiful color. Green and brown blend in with the woods, camouflaging the hunting ground blinds for deer, and your interior comfort is of no concern to wild animals.
If you’ve ever been involved in hunting deer and sat in a hunting blind for hours on end, you’ll realize that the important elements are visibility and your ability to see the deer from all sides and their inability to see you. Since these elements can easily be accomplished with a small amount of money by opting for one of many prefabricated deer hunting blinds, there is no reason to spend a lot of extra time on building your own or extra money either renting one from someone else or buying one with a lot of “fluff”.
Filed under General by Doc on June 1, 2009 at 7:52 am
no comments
Do you want to know what to eat to get a six pack? Please do not undermine the importance of diet to achieve the perfect six pack abs or any type of muscle definition. You will need to bulk up on protein and cut out the carbohydrates if you want to attain the perfect abs.
This doesn’tt mean that you have to lose piles of weight, but it does mean that you have to lose your belly fat, which will get seriously in the way of your perfect abs. If you are overweight, you should want to take the tips found in this article to get rid of the weight and work towards sculpting your body. You will not only look better, but will be doing your health a favor at the same time. The main thing is that you want to diet for muscle.
So, what to eat to get a six pack? You certainly do not want to starve yourself as this will not do anything to help muscle definition. You need to eat sensibly when you are seeking the perfect abs or any other type of body building. And make no mistake about it – you are body building when you are trying to get a six pack. This is part of sculpting your body muscles so that they look attractive and are well defined.
Foods that are high in protein are good for bulking up muscle and also losing fat. These foods tend to trick the body into thinking that it is getting more fuel that it is actually receiving. You should embark on a high protein diet if you want to build up your abdominal muscles.
You will notice that body builders and athletes drink raw eggs. While this may be disgusting to you, there is a lot of protein in those raw eggs that gives the athlete or body builder strength. The body builder will need this in order to bulk up. You need to remain strong if you are going to define your abdominal muscles so that you have a firm six pack. This has only been a teaser of what to eat to get a six pack.
Nothing contained in this article is intended to be used as medical advice and it is not intended to be used to diagnose, treat, cure or prevent any disease, nor should it be used for therapeutic purposes or as a substitute for your own health professional’s advice.
Filed under General by Doc on June 1, 2009 at 7:03 am
no comments
Every woman or man desires to look good and young despite the age.
One of the fastest growing fitness programs these days are facial exercise. It is all natural. People who practice facial exercises are mostly to get rid of the unwanted wrinkles. Not only that, it can also redefine the cheekbones, jaw lines as well as the nose. The papery skin around the neck and under the eyes is alleviated in the process. The lips become fuller and the nose is more defined. Achieve all these at a lesser cost.
Exercising in a gym can firm up the body and the skin. It holds true to the muscles in the face. Since most of the facial muscles are directly attached to the skin, firming results would be faster. Programs on facial exercises are based on muscle resistance training.
According to studies, there are fifty-seven muscles in the face and neck wherein twenty-six are voluntary. Tensions and stress of life can be housed in the face. The tensed facial muscles will inhibit the flow and circulation of blood.
Facial toning exercises may increase blood circulation to the face which will permit more oxygen and more nutrients to reach the cells and whisking the old and damaged ones. The ability of the skin to absorb moisture is then increased and thus revealing a healthy and cleaner skin.
As with any exercise routine, there are certain things you need to avoid when doing the facial exercise plan.
•do not scrub face to strenuously
•during facial cleansing, use downward scrubbing motion
•leaning on one’s chin or cheek on the hand
•sipping beverages from straw
•squinting the eyes
As one may worry that signs of aging are already creeping in, face toning exercise can somehow contribute to the positive outlook in one’s life. No matter how developed those lines are, one can still get rid of them.
Filed under General by Doc on June 1, 2009 at 6:53 am
no comments
If your children are born healthy, it’s your responsibility as a parent to ensure they stay that way. Some things, of course, are unpreventable, but childhood obesity is definitely something that is avoidable. It takes good parenting on your part to teach your children how to prevent childhood obesity, to teach them childhood obesity facts and to teach them good food and exercise habits. It’s not difficult to prevent childhood obesity. As long as you set the foundation early, your child will grow up to be a healthy adult with a healthy body weight and a great outlook on life.
Why Prevent Childhood Obesity?
We live in a society where obesity is a growing problem, no pun intended. Obesity is steadily rising with children as well; and it’s no wonder why. Just walking into your local supermarket will make it painfully obvious. There are rows and rows of sugary cereals and other sugary junk foods that are all marketed for children. Then there are the fast food restaurants that also add to the problem. Childhood obesity increases your child’s risk for acquiring diabetes as well as other diseases, it can lead to bullying at school and shunning from their peers and it can lead to depression as well as low self esteem. These are just some of the reasons why you, as a parent, should teach your child to make good choices as far as their diet and exercise are concerned. So now that you know why you should prevent childhood obesity, you may be wondering how to prevent it.
Teach Your Child Good Habits
Preventing child obesity all comes down to teaching your child good diet and exercise habits. This starts at home. Eat as many meals with your child as possible. Teach them that sugary foods and junk foods are not good for them. They don’t have to refrain from eating these types of foods but they should be taught that these foods are treats. Treats should be just that, they should not be the main staple of their diets. Teach them the importance of including fruits, vegetables, whole grains and protein in their diets. Encourage your kids to exercise. Get them involved in sports and other extra curricular activities and limit the time they spend indoors, as well as the time they spend lounging around watching TV. If you spend teach them these good habits and give them encouraging words as far as how good they’re going, you’ll avoid childhood obesity and they’ll carry these good habits well into their adult lives.
Filed under General by Doc on June 1, 2009 at 6:21 am
no comments
People using article marketing know it is the best free way to get exposure and traffic to their site.
The entire aim of the article is for people interested in it to follow the link, you have put at the foot of the page, to the website of your choice. Popular web sites are the best because it should give your article a good deal of exposure, within a comparatively short time you should start to experience more traffic at your site.
Big, well visited web sites are in general trusted so if your article is accepted, it should improve your reputation as well, This believability will enhance your trust which is very important on the Internet.
If you do this article marketing and submission procedure on a frequent basis, people will start to look for your content and trust your work. This is why it is so important to show people that you know what you are talking about so they trust the material you provide in the area you write about. In time your website’s ranking with Google and other search engines will increase from the number of incoming links you have, by default this will increase the number of organic visitors you receive that have searched for something your site has information on.
If you have quite a few other sites that have set up links to your website then it increases your sites ranking, which in turn will boost up your traffic stats. This is of course will be completely free advertising and can be done over and over again.
Article marketing not only allows links in the body text of the article but in the resource box at the foot of the page. Your article must have good content if you want it placed in many sites as this in turn will link back to your own website which of course will increase the website ranking. It is not unusual for Google and other search engines to take months before they start to list a website. Ordinarily however, a steady submission of articles can speed the procedure up, especially with the back links from authority web sites.
To grow your sites ranking further, you want to be adding more content (preferably unique) to your site (or blog) all the time if you want your article marketing to work. The traffic you attract have no idea most of the time you are trying to sell them something. The more honest you are about what you are doing, the more people will appreciate it, providing the information you supply is relevant to what they are looking for.
Once on your site it is not a difficult thing to show your visitors what it is you are selling. Doing it this way sees to it the visitor is not mislead and is happy to be shown what you have for sale. This helps with preventing the dreaded refund request that happen on occasion.
It is this process of content marketing that makes sure that you will be operating in your venture for a long time to come, This process must be repeated on a regular basis for it to work. Another benefit is quality websites (like yours will be) have other websites link to them and use their content as well, each time your article is duplicated on other sites it increases the number of people who can use it. Article Marketing is still by far the easiest way to drive visitors to your site and it does not cost much apart from your time, With relevant, quality unique articles, your readers will keep on coming back.
Cool Blog Posts
Page 10 of 10« First...«678910