Statements (50)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:cement
|
| gptkbp:alternativeTo |
natural cement
|
| gptkbp:color |
gray
white |
| gptkbp:component |
concrete
marble stucco grout |
| gptkbp:compressiveStrength |
high
|
| gptkbp:contains |
aluminates
calcium silicates ferrites |
| gptkbp:developedBy |
gptkb:Joseph_Aspdin
|
| gptkbp:environmentalImpact |
CO2 emissions
|
| https://www.w3.org/2000/01/rdf-schema#label |
Portland cement
|
| gptkbp:mainIngredient |
gypsum
clinker |
| gptkbp:namedAfter |
Portland stone
|
| gptkbp:patent |
1824
|
| gptkbp:practicedWorldwide |
true
|
| gptkbp:producedBy |
calcination of limestone and clay
|
| gptkbp:riskFactor |
alkaline
can cause skin irritation |
| gptkbp:setInPeriod |
final: 10 hours (typical)
initial: 45 minutes (typical) |
| gptkbp:standardizedBy |
gptkb:ASTM_International
gptkb:EN_197-1 |
| gptkbp:type |
hydraulic
|
| gptkbp:usedFor |
construction
concrete production mortar production |
| gptkbp:usedIn |
gptkb:water
bridges dams reinforced concrete roads tunnels buildings foundations plaster marine structures precast concrete airport runways industrial floors masonry units pavements render tile grout |
| gptkbp:bfsParent |
gptkb:cement
|
| gptkbp:bfsLayer |
5
|