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Insulation R Values: concrete
227 to 413
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) | manufacturer | material | mean temp (F) | r value per inch (ft2hF/BTU/in) | rsi per inch (m2K/W/in) | standard | test method | trade name |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| concrete | 227 | 12/17/1940 | — | 1.4 | 30 | Aggregate - vermiculite, 6:1 mix | Block | 0.956 | Munn and Steele, Inc. | Concrete | 74.8 | 0.150866 | 0.026569 | NIST SRD 81 API | — | Mascrete® |
| concrete | 229 | 1/29/1941 | — | 1.46 | 42.9 | Aggregate - vermiculite, 4:1 mix | Block | 1.237 | (Vermiculite Production Corp.) | Concrete | 79.6 | 0.116595 | 0.020534 | NIST SRD 81 API | — | — |
| concrete | 259 | 11/25/1941 | 4.87 | 1.048 | 65.3 | Aggregate - slag (?) | Block | 1.8923 | — | Concrete | 87.94 | 0.076218 | 0.013423 | NIST SRD 81 API | — | — |
| concrete | 407 | 1/6/1945 | 6.66 | 0.899 | 103.28 | Sample (A) | Block | 3.9516 | U.S. Maritime Commission | Concrete | 83.37 | 0.036499 | 0.006428 | NIST SRD 81 API | ASTM C 177 | — |
| concrete | 408 | 1/8/1945 | 6.33 | 0.934 | 105.59 | Sample (B) | Block | 4.4329 | U.S. Maritime Commission | Concrete | 81.39 | 0.032536 | 0.00573 | NIST SRD 81 API | ASTM C 177 | — |
| concrete | 409 | 1/8/1945 | 5.94 | 0.93 | 109.48 | Sample (C) | Block | 4.6819 | U.S. Maritime Commission | Concrete | 78.66 | 0.030805 | 0.005425 | NIST SRD 81 API | ASTM C 177 | — |
| concrete | 410 | 1/9/1945 | 4.62 | 0.9165 | 118.25 | Sample (D) | Block | 5.8279 | U.S. Maritime Commission | Concrete | 79.44 | 0.024748 | 0.004358 | NIST SRD 81 API | ASTM C 177 | — |
| concrete | 411 | 1/10/1945 | 6.68 | 0.9145 | 99.43 | Sample (E) | Block | 3.9636 | U.S. Maritime Commission | Concrete | 80.35 | 0.036388 | 0.006408 | NIST SRD 81 API | ASTM C 177 | — |
| concrete | 412 | 1/11/1945 | 5.09 | 0.928 | 113.95 | Sample (F) | Block | 5.207 | U.S. Maritime Commission | Concrete | 78.95 | 0.027699 | 0.004878 | NIST SRD 81 API | ASTM C 177 | — |
| concrete | 413 | 1/12/1945 | 5.24 | 0.9 | 105.69 | Sample (G) | Block | 5.0189 | U.S. Maritime Commission | Concrete | 81.46 | 0.028737 | 0.005061 | NIST SRD 81 API | ASTM C 177 | — |
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