TRADECO ® A binder for 7N and 3.6N masonry units mortars BS EN 459.1 HL3.5

Specifically designed to provide today’s builder with a mortar that DOES NOT develop a strength above the one of the masonry units. Elasticity, good water retention, setting time, low capillarity, excellent breathability are the other notable properties of mortars made with TRADECO ®. Its low density produces a high yield.

Main Data
Retained at 90µm < 1%
Retained at 200µm < 0.5%
Dry density (powder) < 600 g/l
Whiteness index Y = 88 (very good reproduction of sand colour)
Tests on mortar prepared according with BS EN459-1 and 459.2 With ISO 679 sand
Compressive strength 7 days 5.5N/mm2 – 28 days 7 N/mm2
Flexural strength 7 days 1.3 N/mm2 - 28 days 2 N/mm2
Test on mortar prepared with 0-3mm common sand at 1:2
binder : sand ratio (1bag+80 litres of sand)
1 : 2.5
1 bag +100 litres sand
Wet density 1600 g/l 1700 g/l
Setting time 2 - 4h 30m 2 – 4h 30m
Water retention 87% 85%
Compressive strength 7 days 3.4 N/mm2– 28 days 4.5N/mm2 2.55 / 3.35
Flexural strength 0.95 N/mm2 – 1.3 N/mm2 0.71 N/mm2 / 0.97 N/mm2
Bonding strength (Tensile) 0.37 N/mm2 - 0.5 N/mm2 0.28 N/mm2 /0.37 N/mm2
Density 7 days 1550 g/l – 28 days 1500 g/l 7 days 1575 g/l - 28 days 1550 g/l
Shrinkage 7 days 0.72 mm.m – 28 days 0.88 mm.m 0.7 - 0.8
Thermal conductivity 28 days λ 0.49 W/m.K tabulated EN 1745 λ 0.49 W/m.K tabulated EN 1745
Expansion coefficient 28days >1 mm/m >1 mm/m
Elasticity Moduli 28 days 5000 MPa 4500 MPa
Capillarity 28 days 0.74 g/dm2 x min1/2 0.8 g/dm2 x min1/2
Vapour Permeability
.8 g.m2/hour.mmHg
0.85g.m2/hour.mmHg
Vapour Resistance µ 0.115 µ 0.11

MORTARS dosages and use
7 N/mm2 masonry or above

Building mortar: 1 bag + 80 litres of sand
Stipple coats on renders (cast on or sprayed on): 1 bag + 70 litres of well graded sharp sand 0-3mm
Renders/plaster base coat
Manual application: 1 bag + 90 litres of well graded sharp sand
Spray application: 1 bag + 80 litres of well graded sand

3.6N masonry units: Building mortar 1 bag + 100 litres of well graded sand
Water addition: 24 litres per bag of 25 kg binder with dry sand.This can vary depending on moisture of site sands
Mixing time: 5 - 6 minutes
Packaging: 25 kg bags (40 bags per pallet)
Shelf life: 12 months properly stored
See Also:  Health and Safety Information for Tradeco ®

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The above details are given for general information purposes and do not constitute a specification.
For further Guidance, contact your St Astier Distributor.

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