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Sand on the Tar Roads.

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Radman
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Re: Sand on the tar road near Olifants?

Unread postby Radman » Thu Jul 26, 2012 1:22 pm

Scipio wrote:Having driven that sandy road the past 2 days a few times, I can safely say that the road is dangerous, with ridges of sand, and it should be "broomed" with the broom contraption that is just lying on the side of the road about 3 k's out from camp on the right hand side. :thumbs_up:



Have to agree with you here Scips seeing that we drove that road quite a few times when we were up at letaba in June it is dangerous :big_eyes:
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viewtopic.php?style=2&f=27&t=62809

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Re: Sand on the tar road near Olifants?

Unread postby mikef » Thu Jul 26, 2012 10:29 pm

The tar roads in Kruger are constructed and maintained using a process of "sand sealing".

Refer to the linked pdf below for a in depth discussion:
http://asac.csir.co.za/capsa/Documents/053.pdf

This does seem to explain most of the instances where I have seen sand covering the tar roads.

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Re: Sand on the tar road near Olifants?

Unread postby DinkyBird » Fri Jul 27, 2012 9:28 am

What I have also found interesting is that the sand remains on the tar for a long time after. I have been on a trip and seen them doing the road works, and driven on the 'freshly' laid sand, then returned a good while after, to find the road still has sand on it.
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Sand on tar road

Unread postby HelenD » Mon Oct 13, 2014 2:40 pm

Can anyone tell me why there is sand on the main tar road around Satara?

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Elsa
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Re: Sand on the Tar Roads.

Unread postby Elsa » Mon Oct 13, 2014 3:25 pm

Warm welcome to the forum Helen! :clap:

Its done to protect and seal the surface of the tar but you will find all the answers in this topic. :thumbs_up:
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RobertT
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Re: Sand on the Tar Roads.

Unread postby RobertT » Mon Oct 13, 2014 4:30 pm

This is SA, we use sand to protect our tar and private security companies to protect our police. :lol: :lol: :lol:

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Re: Sand on the Tar Roads.

Unread postby Friedrich von Hörsten » Tue Oct 14, 2014 8:14 pm

Originally I heard that it was used to help animals negotiate the tar without slipping...? They often add this sand years after the tar has been done (H5/H1-1 junction a few years ago)... I thought it looked more dangerous for animals to slip on the thin layer of sand on a hard tar surface below (on the road between Tshokwane and Satara).

Looks more natural, but not very practical... usually brings new weeds to the roads too.

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Ernest J
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Re: Sand on the Tar Roads.

Unread postby Ernest J » Tue Oct 14, 2014 8:17 pm

RobertT wrote:This is SA, we use sand to protect our tar and private security companies to protect our police. :lol: :lol: :lol:


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Re: Sand on the Tar Roads.

Unread postby Bossiemal » Sat Dec 20, 2014 9:04 am

Its time for the sand :pray: . The excessive temperatures is causing bleeding to the roads surface. It is quite evident where vehicles have stopped or made u turns. Vehicles tyres has also picked up these bleeding spots and has removed the sand seal, exposing the road layer works which will cause potholes if there is water ingress to these spots. :doh: . We need to protect the infrastructure.

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ice
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Kruger Main Roads - Tar or Asphalt?

Unread postby ice » Thu Dec 25, 2014 8:33 am

everybody always calls Kruger's main roads "tar roads" but are they really made of tar? Or rather of asphalt?

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Re: Kruger Main Roads - Tar or Asphalt?

Unread postby Imberbe » Fri Dec 26, 2014 1:09 am

In SA asphalt roads are routinely referred to as tar roads.

Here is more information: viewtopic.php?style=2&f=67&t=64284&hilit=sand

KNP has an excellent road system.
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