About: http://webisa.webdatacommons.org/358765054

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	Such additives have been classified as cement superplasticizers" and include, for example, compounds such as naphthalene sulfonate-formaldehyde condensates, lignin sulfonates and the like.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com