About: http://webisa.webdatacommons.org/175779307

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	As noted, gel strengthening agents other than silica fume can be employed, such as fly ash, manganese oxide fume, ferrosilicon fume and the like.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr