Norlite

MARKETS

INFORMATION

Norlite, LLC
628 S. Saratoga Street Cohoes, NY 12047
(518) 235-0030 (phone) (518) 235-0233 (fax) info@norliteagg.com

Masonry

Product Properties

Blending

Norlite 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
88/12 Block Mix

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

Block Weight vs. Density

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
WHEN DENSITY IS:
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