Quote:
Originally Posted by Woody38
Maybe someone here should talk to a contractor who knows the topic. If that drive was installed properly (most probably weren't) it will last for decades.
If it is porous the job was not done correctly. We had a driveway in our first house (100 yo house) that never had anything done to it and there was no water seeping through. The color changes naturally due to the content.
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As an FYI...I worked for an engineering firm and did roadway inspection including batch plant inspection for a number of years. The reason for the color change is the breakdown of the binding agent in the wear layer and the exposure of internal aggregate....
Dan