About: http://webisa.webdatacommons.org/373401106

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	Perlite is a siliceous material that, while not possessing cementing properties, reacts chemically with the hydration of lime to produce a very dense, impermeable concrete.
http://www.w3.org/ns/prov#wasQuotedFrom	prweb.com