Statements (37)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:building
gptkb:cement |
| gptkbp:alternativeTo |
Blended cement
Pozzolanic cement Sulphate-resisting cement |
| gptkbp:availableOn |
Different grades (33, 43, 53)
|
| gptkbp:color |
Gray
|
| gptkbp:component |
Gypsum
Clinker |
| gptkbp:compressiveStrength |
28-day: 33-53 MPa
|
| gptkbp:contains |
Dicalcium silicate
Tetracalcium aluminoferrite Tricalcium aluminate Tricalcium silicate |
| https://www.w3.org/2000/01/rdf-schema#label |
Ordinary Portland Cement
|
| gptkbp:hydrationProduct |
Calcium hydroxide
Calcium silicate hydrate |
| gptkbp:inventedBy |
gptkb:Joseph_Aspdin
1824 |
| gptkbp:marketedAs |
gptkb:OPC
|
| gptkbp:namedAfter |
Portland stone
|
| gptkbp:producedBy |
Worldwide
Calcination of limestone and clay |
| gptkbp:riskFactor |
gptkb:Alkaline
Irritant Respiratory hazard |
| gptkbp:setInPeriod |
Final: 10 hours (max)
Initial: 30-45 minutes |
| gptkbp:standardizedBy |
gptkb:EN_197-1
ASTM C150 |
| gptkbp:usedFor |
Construction
Mortar production Concrete production Plaster production |
| gptkbp:bfsParent |
gptkb:Emami_Cement
gptkb:JSW_Cement |
| gptkbp:bfsLayer |
7
|