| HISTORY OF ASPHALT |
1900
Frederick J. Warren filed a patent for "Bitulithic" pavement, a mixture of bitumen and aggregate ("bitu" from "bitumen" and "lithic" from "lithos," the Greek word for rock). The first modern asphalt facility was built in 1901 by Warren Brothers in East Cambridge, Mass.
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1907
Production of refined petroleum asphalt outstripped the use of natural asphalt. As automobiles grew in popularity, the demand for more and better roads led to innovations in both producing and laying asphalt. Steps toward mechanization included drum mixers and portland cement concrete mechanical spreaders for the first machine-laid asphalt.
1942
During World War II, asphalt technology greatly improved, spurred by the need of military aircraft for surfaces that could stand up to heavier loads. |
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