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- Weight less than 20kg
- Complies with HSE guidelines on manual handling
- 30% lighter than solid equivalent
- Reduces loads on floors and structure
- Cellular format closed edge uppermost for easy mortar
bedding
- Mortar Key to cores assists wall stability
- Manufactured to BS EN 771-3 & Associated Test
Standards
Description
A general purpose cellular masonry unit produced using natural
dense Class 2 aggregates.
It has two rows of cores specifically designed to allow
architects and designers to specify a 140mm wide unit, its
unit weight being less than 20 kg, with strengths of 7.3
& 10.4N/mm2. The standard unit has a textured face,
ideal for rendering, plastering and dry lining.
A Close Textured unit is specifically made for walling to
receive a paint finish or built fair
and left. Colour is light to dark grey.
BS EN 1996-1-1 Categorises units according to void percentages.
Domino Units Group 2.
Application
Intercrete Domino Standard Masonry Units are intended for
use in walls above and below
DPC ground level in soil classification 1 to 3 as defined
in BS5628 Pt3 and BRE digest 363
1999. Close textured units are specifically made for walls
built fair left undecorated or
paint finished.
Format
& Sizes
Cellular format.
(cores blanked off for mortar bedding).
Facework size 440mm x 215mm.
Tolerances as EN771-3 Table 1, EN 772-16 Category D1.
Unit length or height mm +3 -5
Unit width average mm +3 -5
Physical
Properties
Relationship of density/Strength
EN 772-13 Gross Dry Density
7.3N/mm2 1400 kg/m3
10.4N/mm2 1450 kg/m3
Design
Properties
Weight
Standard/Close Textured Weight inc mortar Sq.M
Strength 7.3N/mm2 18.5 kg 199kg
Strength 10.4N/mm2 19.0 kg 204kg
Unit Density 1400-1450 kg/m3
Water
Vapour Permeability
EN 1745 : 2002 Table A3
Water
vapour diffusion
coeffecient μ 5/15
Modulus
of Elasticity
Static modulus of Intercrete
Domino - approx 3-8KN/mm2.
Moisture
Movement
As tested to BS EN 772-14 : 2002
Total movement = 0.38 mm/m Class 1 Aggregate 0.27 mm/m Class
2 Aggregate
Water Absorption
by Capillarity
Test method EN 772-11-No performance determined
Durability against freeze thaw
No performance determined. Not to be exposed
Shear
Bond Strength
Declared Value 0.15N/mm2 BS EN 998-2 Annex C
Thermal
Movement
Coefficients of linear expansion is 10 x 10 -6/0C
Thermal Conductivity
(based on Table 3.1 CIBSE Guide 1999)
| Concrete Density
2000kg/m3 |
W/mK (lamda value)
Moisture Content |
| |
3%
1.33 |
5%
1.43 |
Thermal Resistance
at 3% Moisture Content 'R' m2 K/W
7.3N/mm2 0.20 10.4N/mm2 0.18
Sound
Reduction RW
(Data based on Mass Law)
Standard Close Textured (values in dB)
No
Finish |
Painted |
L/W
Plaster |
Dry
Lining |
Dense
Plaster |
46
|
49 |
49
|
49
|
50 |
NOTE: Sound Reduction of figures
RW (dB) based on fully filled ironed jointwork and
sealed abutments to soffite and structure, (i.e. no air
leakage gaps)
Fire
Resistance
Intercrete Domino Masonry are classified "Euroclass
A1" as defined in EN ISO 1182.
Standard & close textured paint grade 7.3N/mm2 &10.4N/mm2.
Non-Loadbearing
2 1/2 hrs |
Loadbearing (no finishes)
2 hrs |
The application of plaster finish will extend
periods by approx 1/2 hr.
Cutting,
Chasing, Fixing
Mechanical cutting is recommended and essential for masonry
units built fair and reduces wastage.
Chasing dense concrete material is laborious and should
be avoided whenever possible
and is not recommended in codes of practice. If unavoidable
it should be carried out using mechanical means and depth
guides to avoid penetrating into the cores of the unit.
Maximum depth of chase 25mm limit.In plastered and dry lined
walls, surface plastic
conduit strips should be used.
Fixings for domestic fittings can be made using traditional
plugs and screws into the shell
face of the unit. Refer to Interfuse Design Guide for further
information.
Mortar Mix
Unless specified specifically by Engineers the mortar mix
should be Grade 3,
i.e. 1 cement: 1 lime: 6 sand (BS 5628: Part 3: Table 17
and BS 8000: Part 3).
Plasticisers if used are to be added in accordance with
the manufacturers written
instructions. Mortar joint thickness 10mm.
Internal
Finishes
Lightweight Plaster, British Gypsum Carlite Browning backing
coat, 10mm thickness and
Carlite Finishing Plaster 2-3mm thickness.
Dense Plaster backing coat of 1:1:6 cement, lime, sand,
10mm with a setting coat of
gypsum plaster, sirapite or similar, alternatively British
Gypsums Hardwall Plaster. Apply proprietary plaster in accordance
with manufacturers instructions.
Close Textured Units. All types of paints can be applied
following a sealer coat. The most economical finish is two
full coats applied by brush providing a good cover and cleanable
surface. Dry lining, all Gypsum wallboards fixed either
with conventional dabs or screw
fixed to metal firrings.
External
Finishes
Cellular units are not recommended for external leaves or
single leaf walls, however they
can be used in unexposed protected conditions with render
or cladding materials.
Rendering, the surface must be treated with a spatterdash
coat of 1:1 cement and sand,
allow to dry white hard.
Apply a backing coat of 1:1:6 cement, lime, sand ruled out
and scratched 10mm thick, a finishing coat of the same mix
5mm thick finished with a wood float, which could have a
colour additive, completes the finish.
Quality
Control
Interfuse Ltd operate a formalised QA system at both Syston
and Gainsborough plants.
All masonry units are subject to stringent quality control
checks and are tested daily in our
own Laboratory. Copies of test certificates are available
on request.
Delivery Load
Data
Prices quoted per 10 Units (9.88 per m2)
All prices include mechanical off-loading and apply to full
loads.
Load sizes may vary between 19 tonnes Rigid, 20 to 27 tonnes
Artics.
15 tonne loads available with an additional surcharge.
Part loads are subject to special quotation.
Quality Control
Interfuse Ltd operate a formalised QA system at both Syston
and Gainsborough plants.
All masonry units are subject to stringent quality control
checks and are tested daily in our
own laboratory.
A documented factory production control system is in operation
with regular checks made
on raw materials, production and finished units. A stock
control system is in operation with written procedures for
non-conforming products. All products are produced to the
current European Standards.
Marking
Each pack is marked for traceability of product and unit
clarification as given on the
delivery ticket. |
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