About: http://webisa.webdatacommons.org/342333113

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Hydraulic cement is made from finely ground clinker, which consists of the calcium silicate minerals formed when limestone and other materials are burned at very high temperatures in a kiln.
http://www.w3.org/ns/prov#wasQuotedFrom	enviroliteracy.org