EcoMortar Premixed natural hydraulic lime building mortars

St Astier Natural Hydraulic Limes (NHL)

Premixed natural hydraulic lime mortars for building, rendering and finishing coats in a variety of colours

See: COLOUR CHART

The absence of cement, ashes and other pozzolanic additions together with its other qualities, make EcoMortar highly suitable for repair and conservation work on traditional, vernacular and historic buildings. In new build the properties of EcoMortar will allow joint free construction, dispersion of condensation and will accommodate small settlement movements.

Ecofriendly characteristics:
- High vapour exchange qualities
- Produced with lower energy than cementitious mixes
- Re-absorption of CO2 in curing
- Will not deteriorate timber
- Possibility of recycling the materials used in building
- Elimination of painted finishes
Colour Chart Link
See: COLOUR CHART

Mechanical characteristics Type C construction grade – Type F Finishing grade
(Medium waterproofing) – Type WP/NHL3.5 (Maximum waterprofing)

  Units EcoMortar C & F
With NHL 3.5
EcoMortar C & F
with NHL2 and WP with NHL 3.5
Dry bulk density kg/m3 1400 1400
Compressive strenght 7 days N/mm2 1.2 1.0
28 days   1.9 1.5
90 days   3.6 3.0
Elasticity Moduli MPa 5000 4000
Vapour Permeability
 
g.m2.hour.mmHg
 
0.85
 
0.89
WP = 0.85

Capillarity

Type C and F

Type WP

 
g.m2.min-1/2
 
 

1 - 2
 

 
2 - 3
0.2

Granulometries (maximum grain size):
EF = 0.8mm    TF= 1.3mm    F= 1.8mm    M= 2.5mm
Type WP only available in EF and TF.

Range:

C Grade F Grade WP Grade
ECOMORTAR C NHL3,5 EF 020 ECOMORTAR F NHL3,5 EF 020 ECOMORTAR WP NHL3,5 EF 020
ECOMORTAR C NHL3,5 TF 020 ECOMORTAR F NHL3,5 TF 020 ECOMORTAR WP NHL3,5 TF 020
ECOMORTAR C NHL3,5 M 020 ECOMORTAR F NHL3,5 M 020  
ECOMORTAR C NHL2 EF 020 ECOMORTAR F NHL2 EF 020  
ECOMORTAR C NHL2 TF 020 ECOMORTAR F NHL2 TF 020  
ECOMORTAR C NHL2 M 020    

Available in a wide range of colours.
When used as a finishing coat make sure that the backing coat is straight, dry and sufficiently hard to accept the finishing coat.
For Roughcast and Harling coarser granulometries are available on special order (G4= 4mm and G5= 5mm).
Packing: 35 kg. Bags
Shelf life: 12 months in dry storage conditions. Re-seal partly used bags immediately.
Preparation: in ordinary drum mixers (mix for about 5 minutes)
Water addition:
EcoMortar Granulometry EF: 6 litres to 6.5 litres per bag of 35 kg.
EcoMortar Granulometry TF, F, M: 5 litres to 6 litres per bag of 35 kg.

Consumption per 35Kg Bag
Renders and Plasters: 2.2 m2 at 10mm thickness
Building: 70 std Bricks (no Frog)
Re-Pointing: 23 linear metres for 10mm x 10mm joints

Application: on clean and dry background not water proofed. Dampen adequately dry or high suction surfaces. Protect against strong rain, frost, drying wind or direct strong sun until sufficient hardening has occurred.
See also “Protecting lime mortars”.

 

For further Guidance, contact your St Astier Distributor.
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