|
NHL products are bought by weight but mixed by volume.
Their low density in comparison with other binders means that with the same weight one would produce up to three times the amount of mortar.
|
Binder consumption for 1cu. yard of mortar:
volume /weight comparison
|
|
Average
|
Volumetric Mixes – lbs/cu.yd
|
| Binder |
Density (lbs/cu.yd
|
1:2
|
1:2.5
|
1:3
|
| NHL 5 |
1123
|
561
|
448
|
374
|
| NHL 3.5 |
1028
|
514
|
411
|
342
|
| NHL 2 |
944
|
472
|
378
|
314
|
| Lime Putty |
2276
|
1138
|
910
|
759
|
| OPC/W.Cement |
2444
|
1222
|
978
|
814
|
|
Mortar required per 100 square yards of brickwork with 3/8″ joints.
Brick sizes have been taken to be 8.5″ X 4″ X 2.5″. Mix
ratio 1:2.5.
| Type of wall |
Wall
thickness
|
No. frog
cu. yd
|
Single
frog cu.yd
|
Amount of NHLs in lbs
(No frog/single frog)
|
|
|
|
|
NHL 5
|
NHL 3.5
|
NHL 2
|
| Half brick |
4 inch
|
1.52
|
2.48
|
674/1054
|
622/1020
|
572/937
|
| Cavity |
10 inch
|
3.03
|
4.47
|
1348/2210
|
1246/2041
|
1145/1876
|
| One brick solid |
8.5 inch
|
3.89
|
5.91
|
1730/2591
|
1598/2395
|
1469/2198
|
| one & half brick solid |
13 inch
|
6.25
|
9.16
|
2782/4077
|
2571/3767
|
2360/3460
|
St Astier NHL binders required (in lbs approx.) per 1/16″ per
square yard of render / plaster
using well graded sand # 6 down to #200(0.35of sand per sq. yd per 1/16″
of thickness).
|
Mix ratio
|
NHL 2
|
NHL 3.5
|
NHL 5
|
|
1:1.5
|
1.08
|
1.20
|
1.37
|
|
1:2
|
0.82
|
0.91
|
1.02
|
|
1:2.5
|
0.64
|
0.70
|
0.82
|
|
1:3
|
0.56
|
0.58
|
0.67
|
|
