Macadam Videos, Biography, Lyrics


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Macadam Biography

Macadam is a type of road construction pioneered by the Scotsman John Loudon McAdam in around 1820. It consisted of creating three layers of stones laid on a crowned subgrade with side ditches for drainage. The first two layers consisted of angular hand-broken aggregate, maximum size 3 inches (75 mm), to a total depth of about 8 inches (200 mm). The third layer was about 2 inches (50 mm) thick with a maximum aggregate size of 1 inch (25 mm). Each layer would be compacted with a heavy roller, causing the angular stones to lock together with their neighbours. Water-bound macadam This basic method of construction is sometimes known as "water-bound macadam". Although this method required a great deal of manual labor, it resulted in a strong and free-draining pavement. Roads constructed in this manner were described as "macadamized". Tar-bound macadam With the advent of motor vehicles, dust became a serious problem on macadam roads. The vacuum created under fast-moving vehicles will suc

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Macadam discography, Macadam song lyrics

Macadam Lyrics

"Macadam" : Download all the ringtones on your cell
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