Natural Lime NHL 5 (Chaux 100 naturelle Pure) Product Data
St Astier Natural Hydraulic Limes (NHL)
|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 strengthN/mm2||Elasticity Moduli (Mpa)|
|MIX RATIO||EN459*||1 : 2||1 : 2.5||1 : 3||1 : 2||1:2.5||1 :3|
|Consumption for 1m3
of mortar Kg. +/- 10%
|EN 459/BS 459 ( mortar ratio 1:1 by volume, with ISO 679 Sand)|
Mixing: can be mixed in cement mixers.
Application by spray gun: possible. Please consult us.
Working temperatures: not below 5oC 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".
SUITABLE FOR LATH WORK / LIME CONCRETE/INJECTION/GROUTING See relevant sheets
Reworking: possible within 8 hours
Mortar composition: MASONRY/POINTING/CAPPING/MASS WALL BEDDING/ FOUNDATION/SEA DEFENCE WALLS/CHIMNEY STACS/NEW BUILD (Masonry)
Depending on the conditions of the support/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 also "Applications & Good Working Practices - Sands for Lime Mortars".
A. Scratch coat (3 - 5mm) 1 VOLUME OF NHL 5 : 1.5 VOLUMES OF SAND Cast on recommended
B. Undercoat (15-20mm) 1 VOLUME OF NHL 5 : 2 VOLUMES OF SAND * (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, see relevant sheets
For further Guidance, contact your St Astier Distributor.
Copyright © 2016 CESA, Chaux et Enduits de St Astier