Physical & mechanical data
| NHL 5 | NHL 3.5 | NHL 2 | |
|---|---|---|---|
|
Combined Silica bands |
12-16 |
8-12 |
4-8 |
|
Available lime % |
15-20 (>3) |
20-25 (>9) |
50-60 (>15) |
|
Density (gr/litre) |
650/750 (600-1,000) |
600/660 (500-900) |
450/520 (400-600) |
|
Surface cover (cm2 per gram) |
8,000 |
9,000 |
11,000 |
|
Granulometry:
Residue @ 0.09mm |
7% |
6.5% |
5% |
|
Whiteness Index (Y) |
67 |
72 |
76 |
|
Compressive strength* |
*5-9 (5-15) |
*3.5- 8 (3.5-10) |
*2-5 (2-7) |
|
Flexural strength N/mm2* |
2.30 |
2 |
1 |
|
Soundness ( max. 2mm)** |
<1mm |
<1mm |
<1mm |
|
Set, beginning (1-15 h) *** |
3-4 |
5-6 |
8-10 |
FIGURES IN BRACKETS AND ITALICS REFER TO THE EU 459-1 NORMS
* N/mm2 @ 28days. Measured in accordance with EU Norm EN 459 on EU Std. Mortars @ 1:1.3 mix ratio. Values vary depending on dosages and sands used.
** Expansion (soundness) measured according to EN459-2/5.3.2.2 and French Norm NFP15-311, not using Le Chatellier Test which allows expansion value of up to 20mm.
*** On mortars. Not on lime paste.
| Tests on common mortar mixes | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
Binder : Sand Ratio |
1 : 2 |
1 : 2.5 |
1 : 3 |
||||||
|
|
NHL5 |
NHL3.5 |
NHL2 |
NHL5 |
NHL3.5 |
NHL2 |
NHL5 |
NHL3.5 |
NHL2 |
|
Set (beginning) hours |
3 |
5 |
8 |
3 |
6 |
9 |
3 |
6 |
9 |
|
Elasticity Moduli
28 days N/mm |
10800 |
9010 |
9025 |
11000 |
9000 |
9800 |
10000 |
8970 |
9000 |
|
6 months |
18000 |
16250 |
12600 |
17050 |
13505 |
12030 |
16900 |
12450 |
11800 |
|
12 months |
18510 |
15280 |
12515 |
17280 |
13620 |
12030 |
16150 |
13150 |
11900 |
|
24 months |
21500 |
17480 |
13375 |
18020 |
13785 |
12000 |
17430 |
13670 |
11750 |
|
Compressive strength |
|
||||||||
|
7 days N/mm2 |
1.96 |
0.75 |
0.62 |
1 |
0.57 |
0.53 |
0.88 |
0.53 |
0.47 |
|
28 days |
2.2 |
1.88 |
1.48 |
2 |
1.47 |
1.36 |
1.5 |
1.34 |
1.25 |
|
6 months |
7.31 |
7.1 |
3.84 |
5.91 |
5.34 |
3 |
5.32 |
3.94 |
2.88 |
|
12 months |
9.28 |
7.5 |
4 |
8.44 |
5.9 |
2.9 |
6.5 |
3.9 |
2.9 |
|
24 months |
10.81 |
8.63 |
4.25 |
8.81 |
6.00 |
3.00 |
7.8 |
3.97 |
2.75 |
|
|
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|
Permeability (vapour exchange)
Gr. of air x m2 x hour x mmHG |
0.55 |
0.62 |
0.68 |
0.6 |
0.64 |
0.7 |
0.69 |
0.7 |
0.71 |
|
Shrinkage mm.m |
0.17 |
0.59 |
0.75 |
0.13 |
0.44 |
0.60 |
0.15 |
0.25 |
0.51 |
|
Capillarity g.min |
0.88 |
1.18 |
3.05 |
2.54 |
4.7 |
7.84 |
4.61 |
6.3 |
8.7 |