Coplay in Lehigh County, Pennsylvania — The American Northeast (Mid-Atlantic)
Lehigh Valley Rock Suitable for Hydraulic Cement
Saylor Cement Museum
Photographed By Don Morfe, July 5, 2015
1. Lehigh Valley Rock Suitable for Hydraulic Cement Marker
Inscription.
Lehigh Valley Rock Suitable for Hydraulic Cement. Saylor Cement Museum. In the Lehigh Valley rock suitable for hydraulic cement had been found near the present locations of Palmerton and Northampton when the Lehigh Canal was built. Mills to produce hydraulic cement were erected at these sites before the Civil War. It was against this background that David O. Saylor began his experiments for producing Portland cement. As had been true in Europe he learned that by burning certain limestone almost to a melting point, he produced the material which upon further refinement became Portland Cement.
In the Lehigh Valley rock suitable for hydraulic cement had been found near the present locations of Palmerton and Northampton when the Lehigh Canal was built. Mills to produce hydraulic cement were erected at these sites before the Civil War. It was against this background that David O. Saylor began his experiments for producing Portland cement. As had been true in Europe he learned that by burning certain limestone almost to a melting point, he produced the material which upon further refinement became Portland Cement.
Topics. This historical marker is listed in this topic list: Industry & Commerce.
Location. 40° 40.6′ N, 75° 29.777′ W. Marker is in Coplay, Pennsylvania, in Lehigh County. Marker is on North 2nd Street. Touch for map. Marker is at or near this postal address: 245 North 2nd Street, Coplay PA 18037, United States of America. Touch for directions.
3. Sign at the entrance to the Saylor Cement Museum
Photographed By Don Morfe, July 5, 2015
4. First Cement Marker
Credits. This page was last revised on June 16, 2016. It was originally submitted on July 14, 2015, by Don Morfe of Baltimore, Maryland. This page has been viewed 327 times since then and 7 times this year. Photos:1, 2, 3, 4. submitted on July 14, 2015, by Don Morfe of Baltimore, Maryland. • Bill Pfingsten was the editor who published this page.