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When the road material contains more than 20%-30% clay, will the road surface become too slippery and lose traction?

April 26, 2017clay lose material road slippery traction

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When the road material contains more than 20%-30% clay, will the road surface become too slippery and lose traction?

1 Answer

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Roads constructed with material containing a high level of clay will exhibit slippery surfaces when wet. It is necessary to use as much aggregate as possible not only to increase the overall strength of the road, but also to increase traction in wet conditions.