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R-229 — Concrete
- Material Id
- Concrete
- Record Id
- 229
- Date
- 1/29/1941
- Delta X (in)
- 1.46
- Density (lb/ft3)
- 42.9
- Description
- Aggregate - vermiculite, 4:1 MIX
- Form
- Block
- K W Mk (W/mK)
- 1.237
- Manufacturer
- (Vermiculite Production Corp.)
- Material
- Concrete
- Mean Temp (F)
- 79.6
- R Value per Inch (ft2hF/BTU/in)
- 0.116595
- Rsi per Inch (m2K/W/in)
- 0.020534
- Standard
- Nist Srd 81 API
Source: NIST SRD 81 API