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Day: November 5, 2018

Streets Could Cut Urban Flooding by Half

Travertine is cheaper than both water-absorbing asphalt and concrete. Travertine is a form of limestone deposited by mineral springs, especially hot springs. Travertine often has a fibrous or concentric appearance and exists in white, tan, cream-colored, and even rusty varieties. It is formed by a process of rapid precipitation of calcium carbonate, often at the […]