Interesting. I seem to recall that when I lived in Malaysia many decades ago, someone told me that when they laid down the gravel and tar mix for the roads ove

Interesting. I seem to recall that when I lived in Malaysia many decades ago, someone told me that when they laid down the gravel and tar mix for the roads over there, they added a fair bit of rubber sap into it as well. Don't know if it was an urban myth, but the person who told me mentioned that the roads tended to react better to things like heat expansion from the sun's heat and vibration because the final compound was a lot more elastic. He also said that the added rubber provided extra traction for vehicle tyres. Given that rubber is a massive raw produce of Malaysia, I could see that they could do this, but always wondered if it was viable from an engineering standpoint. I mean, the tar/gravel slush mix is quite hot, and I would have thought that raw, unprocessed rubber sap my break down in the mix?