Saint-Astier® NHL 5
Technical data sheet
Conforms to European Norms EN 459 and BS 459
Strength factor: 5 (Eminently hydraulic)
Residue @ 0.09 mm: 7%
Density (volumetric weight) typical: 700 gr. / litre
Available (free) lime Ca(OH)2 after slaking: 20-22%
Shelf life: 8-12 months kept sealed and dry
Contains no additives.
Whiteness index: 67
Surface cover (cm2per gram): 8000
Expansion : < 1mm
Residue of quick lime after slaking: < 1%
Packing: 25kg. Bags
| MORTARS | Compressive strength - N/mm2 | Elasticity Moduli (Mpa) | |||||
|---|---|---|---|---|---|---|---|
|
MIX RATIO |
EN459* |
1 : 2 |
1:2.5 |
1 : 3 |
1 : 2 |
1 : 2.5 |
1 : 3 |
|
7 DAYS |
|
1.96 |
1.00 |
0.88 |
n/a |
n/a |
n/a |
|
28 DAYS |
5* |
2.20 |
2 |
1.5 |
10800 |
1100 |
10000 |
|
6 MONTHS |
|
7.31 |
5.91 |
5.31 |
18000 |
17050 |
16900 |
|
12 MONTHS |
|
9.28 |
8.84 |
6.50 |
18510 |
17280 |
16150 |
|
24 MONTHS |
|
10.81 |
8.81 |
7.8 |
21500 |
18020 |
17430 |
|
Consumption for 1m3
of mortar (kg. +/- 10%) |
|
350 |
280 |
233 |
|
|
|
|
EN 459/BS 459 ( mortar ratio 1:1 by volume, with ISO 679 Sand) |
|||||||
Suitable for
Lime concrete, injection, grouting, rendering, masonry, pointing, capping, mass wall bedding, foundation, sea defence walls, chimney stacks, new build (masonry). Before starting, always try on a small test area.
Mixing
It can be mixed in cement mixers.
Application
Application by spray gun is possible. Please consult us.
Working temperatures
Not below 8oC or above 30oC. Make sure that high suction materials are thoroughly dampened before application. Avoid rapid drying due to high temperatures or strong winds by curing with a light water mist several times a day if necessary. See Protecting Lime Mortar.
Reworking
Possible within 8 hours
Mortar composition
1) For masonry, pointing, capping, mass wall bedding, foundation, sea defence walls, chimney stacs and new build
Depending on the conditions of the background, the fineness of the sand and the size of the joints, binder/sand ratio values vary between 1:1.5 to 1:2.5.
Choose well graded sands (3 or 4mm down to 75 microns). See Sands for limes mortars.
2) Rendering
A. Scratch coat (3 – 5mm) > ratio NHL 5/sand 1:1.5 (cast on recommended)
B. Undercoat (15-20mm) > ratio NHL 5/sand 1:2* (1:2.5 max)
*At this dosage the consumption is approx 0.4 kg. of NHL 5 per m² for each mm of thickness
C. Finishing (5-10mm) > Use NHL 3.5 or NHL 2