ASTM C618
E302309
ASTM C618 is a standard specification that defines the requirements for coal fly ash and raw or calcined natural pozzolans used as supplementary cementitious materials in concrete.
All labels observed (2)
| Label | Occurrences |
|---|---|
| ASTM C618 canonical | 2 |
| Standard Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2831393 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: ASTM C618 Context triple: [ASTM C595, relatedTo, ASTM C618]
-
A.
ASTM C595
ASTM C595 is a standard specification issued by ASTM International that defines requirements for blended hydraulic cements used in concrete and other construction applications.
-
B.
ASTM C150
ASTM C150 is a widely used ASTM standard that specifies the requirements for portland cement used in concrete and other construction applications.
-
C.
ASTM C33
ASTM C33 is a standard specification that defines the quality and grading requirements for fine and coarse aggregates used in concrete construction.
-
D.
ASTM C1157
ASTM C1157 is a performance-based standard specification for hydraulic cement that classifies and evaluates cements by their strength and durability characteristics rather than by composition.
-
E.
ASTM C10 (natural cement)
ASTM C10 (natural cement) is a standard specification issued by ASTM International that defines the requirements and testing methods for natural hydraulic cements such as historic Rosendale cement.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: ASTM C618 Target entity description: ASTM C618 is a standard specification that defines the requirements for coal fly ash and raw or calcined natural pozzolans used as supplementary cementitious materials in concrete.
-
A.
ASTM C595
ASTM C595 is a standard specification issued by ASTM International that defines requirements for blended hydraulic cements used in concrete and other construction applications.
-
B.
ASTM C150
ASTM C150 is a widely used ASTM standard that specifies the requirements for portland cement used in concrete and other construction applications.
-
C.
ASTM C33
ASTM C33 is a standard specification that defines the quality and grading requirements for fine and coarse aggregates used in concrete construction.
-
D.
ASTM C1157
ASTM C1157 is a performance-based standard specification for hydraulic cement that classifies and evaluates cements by their strength and durability characteristics rather than by composition.
-
E.
ASTM C10 (natural cement)
ASTM C10 (natural cement) is a standard specification issued by ASTM International that defines the requirements and testing methods for natural hydraulic cements such as historic Rosendale cement.
- F. None of above. chosen
Statements (52)
| Predicate | Object |
|---|---|
| instanceOf |
ASTM standard
ⓘ
construction materials standard ⓘ materials specification ⓘ |
| addressesPerformanceAspect |
durability of concrete
ⓘ
mitigation of alkali-silica reaction ⓘ strength development of concrete ⓘ sulfate resistance of concrete ⓘ workability of concrete ⓘ |
| appliesToMaterial |
calcined natural pozzolan
ⓘ
coal fly ash ⓘ raw natural pozzolan ⓘ |
| classifiesMaterial |
Class C fly ash
ⓘ
Class F fly ash ⓘ Class N natural pozzolan ⓘ |
| definesUseAs | supplementary cementitious material in concrete ⓘ |
| hasTitle |
ASTM C618
self-linksurface differs
ⓘ
surface form:
Standard Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete
|
| includesSection |
chemical requirements
ⓘ
classification ⓘ materials and manufacture ⓘ ordering information ⓘ packaging and marking ⓘ physical requirements ⓘ referenced documents ⓘ sampling and testing ⓘ scope ⓘ |
| industrySector |
cement and concrete industry
ⓘ
construction ⓘ |
| objective | to ensure quality and uniformity of fly ash and natural pozzolans for concrete ⓘ |
| publishedBy | ASTM International ⓘ |
| relatedToStandard |
ASTM C150
ⓘ
ASTM C311 ⓘ ASTM C33 ⓘ ASTM C595 ⓘ |
| specifiesProperty |
air entraining effect
ⓘ
available alkali content ⓘ chemical requirements ⓘ density ⓘ fineness ⓘ loss on ignition ⓘ moisture content ⓘ physical requirements ⓘ soundness ⓘ strength activity index ⓘ sulfur trioxide content ⓘ water requirement ⓘ |
| standardNumber | C618 ⓘ |
| usedBy |
cement manufacturers
ⓘ
civil engineers ⓘ concrete producers ⓘ specifying agencies ⓘ |
| usedIn |
blended hydraulic cement systems
ⓘ
concrete ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: ASTM C618 Description of subject: ASTM C618 is a standard specification that defines the requirements for coal fly ash and raw or calcined natural pozzolans used as supplementary cementitious materials in concrete.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.