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MARKETSINFORMATIONNorlite, LLC |
MasonryProduct PropertiesBlendingNorlite block mix is a controlled varying combination of 3/8" and fine (3/16" - 0) aggregates. These aggregates should be stored in separate silos equipped with calibrated feeders for the specific purpose of providing aggregate blends compatible with available natural sand to produce a desired block texture. Typical Sieve Analysis
|
Sieve No. |
Percent Retained (Cumulative) |
Percent Passing |
ASTM C 330 |
---|---|---|---|
1/2 | 0 | 100 | |
3/8 | 0 | 90-100 | |
4 | 13.8 | 86.2 | 65-90 |
8 | 35.4 | 64.6 | 35-65 |
16 | 57.9 | 42.1 | - |
30 | 75.4 | 24.6 | - |
50 | 85.5 | 14.5 | 10-25 |
100 | 91 | 9 | 5-15 |
The density of a masonry unit can be the determining factor of fire resistance, labor productivity, acoustical properties and energy efficiency.
Various correlations have been made between the density and resistance values of masonry. However, there is some confusion between the density of a masonry unit and the weight of the unit.
The following chart contains a convenient method of estimating the density of various masonry units given the oven dry weight of the unit.
APPROXIMATE OVEN DRY WEIGHT
OF BLOCK |
||||||
HOLLOW UNIT | LIGHTWEIGHT | MEDIUM WEIGHT | ||||
NUMBER OF CORES | 80 #/ cu.ft. |
85 #/ cu.ft. |
95#/ cu.ft. |
105#/ cu.ft. |
115 #/ cu.ft. |
|
6x8x16 | 2 Core | 18 | 19 | 21 | 23 | 25.5 |
8x8x16 | 2 Core | 22.3 | 23.5 | 26.5 | 29 .0 | 32 |
10x8x16 | 2 Core | 27.5 | 29 | 32 | 35.5 | 39 |
12x8x16 | 2 Core | 31.8 | 33.5 | 37.5 | 41.5 | 45 |
APPROXIMATE BATCH WEIGHTS FOR ABOVE DENSITIES ASTM C-90 LOAD BEARING - 50 FT3 BATCHES | ||||||
Cement | 450 | 450 | 450 | 450 | 450 | |
Norlite | 2600 | 2400 | 2000 | 1700 | 1000 | |
Sand | 700 | 1425 | 2100 | 3000 | ||
Yield - 8 Block " | 136 | 150 | 146 | 144 | 140 | |
Dry Weight | 22.4 | 23.5 | 26.5 | 29 | 32 |
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