Insulation R Values: concrete
Insulation R-values and thermal conductivity data from NIST SRD 81 — covers fiberglass, foam, cellulose, mineral wool, and other building insulation materials
| material id | record id | date | delta t (F) | delta x (in) | density (lb/ft3) | description | form | k w mk (W/mK) | material | mean temp (F) | r value per inch (ft2hF/BTU/in) | rsi per inch (m2K/W/in) | test method |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| concrete | 1034 | 7/3/1956 | 23.94 | 0.9782 | 26.5 | Aggregate - vermiculite | Block | 0.8754 | Concrete | 73.56 | 0.164757 | 0.029015 | ASTM C 177 |
| concrete | 1045 | 8/16/1956 | 24.15 | 1.0094 | 19.26 | Aggregate - perlite | Block | 0.5228 | Concrete | 73.64 | 0.275876 | 0.048585 | ASTM C 177 |
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