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Tarmac Topblock
Dense, Lightweight Aggregate and Aircrete Blocks
Tarmac Topblock, part of Tarmac's Building Products group, is the UK's leading
manufacturer of concrete blocks with specifications to match the most demanding
of building requirements. With a unique product range including dense,
lightweight aggregate and aircrete blocks, Tarmac Topblock is able to offer
a product for every application from an extensive network of production
facilities.
The blocks featured here represent a selection of the products available.
To request specific information on the full range, visit our website
www.topblock.co.uk or contact Tarmac Topblock Marketing on 01375 656210.
Durox Aircrete Blocks
Supabloc 400 and Supabloc
Durox Supabloc 400 (2.8N/mm2) is primarily used for the loadbearing inner
leaf of external cavity walls. Other key applications are solid walls,
loadbearing and non-loadbearing walls. Supabloc (3.5N/mm2) is primarily used
to form the loadbearing inner leaf of cavity walls. Other key applications
are solid walls, below dpc, and partitions both loadbearing and non-loadbearing.
Supabloc 4, 7 and 10
Durox Supabloc 4 may be used to form cavity separating walls. Other key
applications include the rendered outer leaf of cavity walls, below dpc,
and in situations where 4N/mm2 compressive strength is demanded. Supabloc
7, and 10 meet the compressive strength criteria specified in the Building
Regulations Approved Document A. Suitable for multi-storey applications,
it may be used in outer and inner leaves of cavity walls, internal partitions
(loadbearing and non-loadbearing), below dpc, and in cavity separating walls.
For details of cavity separating wall constructions using Supabloc 4 and
7 which comply with the latest ROBUST DETAILS RD E-L, please consult our
Technical Services Department for details of recommended designs for separating
walls.
System 500, 600 and 700
Durox System is recognised as a Modern Method of Construction (MMC) combining
the thermal efficiency of larger format Durox aircrete with the significant
productivity gains associated with the use of thin layer mortars. System
is produced in three strengths, 3.5, 4 and 7N/mm2, and in a range of coursing
heights. Its primary applications are the inner leaf of external walls and
solid external walls as well as cavity separating walls* conforming to Robust
Detail E-WM-7.
Foundation Blocks
Durox Foundation blocks form a solid wall below dpc, to support solid or
cavity walls. Because of its excellent insulating properties, the product
provides perimeter insulation to ground floors. Construction time may be
halved compared to cavity construction. Wall ties and cavity fill are no
longer needed and the risk of collapsed cavities is eliminated. The wall
also becomes stable soon after laying. Durox Foundation blocks are available
in 3.5 and 7N/mm strength.
Floor Blocks
Durox Floor blocks are suitable for use in beam and block ground and internal*
floors. They are light and quick to install, and form an immediate working
platform which will also provide effective sound and thermal insulation.
Coursing bricks or slips are available for use with this product. When installed
as a ground floor they contribute towards the thermal insulation of the floor
by reducing the amount of additional insulation that is required. Independent
tests show that the sound reduction (Rw) of a beam and Floor block internal
floor exceeds the requirements of the Building Regulations.
*refers to internal floors in houses
Dense, Lightweight Aggregate and Aircrete Blocks
Coursing Bricks
Durox Coursing bricks complement Durox blocks and should be used for general
coursing work and infilling small areas of wall. The use of coursing bricks
is advised in Durox walls to avoid introducing cold bridging. Coursing slips
are designed specifically for use in combination with floor blocks. They
can be used to fill in the void beneath the floor blocks at the beam bearings,
or as a coursing brick where the floor bears directly onto the inner leaf.
Appearance
Durox blocks have a white, medium textured surface suitable for direct finishes,
such as render, plaster and dry-lining on dabs. Proprietary projection finishes
may also be applied. Each product type is shrink-wrapped for protection and
easy identification on site.
Toplite GTI/Standard/’7’
Toplite aircrete is suitable for a wide range of applications on both loadbearing
and non-loadbearing constructions. Good levels of thermal insulation are
combined with loadbearing strength and low weight to provide a versatile
range of walling blocks. Good durability is achieved by the unique micro-cellular
structure of aircrete confirming its suitability for walls above and below
ground.
Appearance
Toplite blocks have a white, medium textured surface. Each product type is
supplied in shrink-wrapped packs for protection and easy identification on
site.
Toplite GTI offers a high level of thermal insulation reducing the amount
of additional insulation. It is ideally suited for the construction of inner
leaves and solid external walls.
Toplite Standard and ‘7’ are suitable for applications above and
below ground including external and separating walls. For details of wall
construction which comply with the latest robust details RD E-WM-6, please
consult our Technical Services Department.
Toplite ‘7’ is recommended for more demanding loadbearing applications.
All Toplite products have excellent working characteristics. They are light,
easy to handle and quick to install. They can be easily cut, chased and nailed
into.
Hemelite
Hemelite Standard are lightweight concrete blocks suitable for the construction
of walls above and below ground and for beam and block floor systems. They
have a proven high level of technical performance and provide a strong background
for the application of surface finishes and fixings.
Hemelite is produced in solid, cellular and hollow block types as defined
in BS 6073 (to be replaced with BS EN771-3) and is available in a range of
sizes and strengths between 3.5N/mm2 and 10N/mm2. For details of wall
construction which comply with the latest robust details RD E-WM-2 and 4,
please consult our Technical Services Department.
Appearance
Standard grade blocks are light to dark grey and have a textured surface
suitable for plastering or rendering. Paint Quality grade blocks are light
to dark grey and have a close textured surface. The colour and texture of
blocks may differ according to factory of origin.
Topcrete
Topcrete Standard are dense concrete blocks suitable for the construction
of walls above and below ground and for beam and block floor systems. They
are extremely durable, and have excellent load bearing and sound insulation
properties combined with low movement characteristics.
Topcrete RPW (Residential Party Wall) blocks are solid units intended for
the construction of ‘slender’ separating walls in non domestic
residential buildings. They allow the party wall to be built to a 190mm
thickness, a 12% saving in space compared to conventional solid masonry walls
and even greater if compared to cavity walls. They offer high loadbearing
capability that is ideally suited to multi-storey buildings.
Topcrete blocks provide a strong background for the application of surface
finishes and fixings.
Topcrete is produced in solid, cellular and hollow block types as defined
in BS 6073 (to be replaced with BS EN771-3) and is available in a range of
sizes and strengths. For details of wall construction which comply with the
latest robust details RD E-WM-1 and 3., please consult our Technical Services
Department.
Appearance
Standard grade blocks are light to dark grey and have a textured surface
suitable for plastering or rendering. Paint Quality grade blocks are light
to dark grey and have a close textured surface. The colour and texture of
blocks may differ according to factory of origin.
Tarmac Topblock Ltd
Millfields Road
Ettingshall
Wolverhampton
WV4 6JP Technical Services: 0870 242 1489
E-mail: technical.services@tarmac.co.uk
Website: www.topblock.co.uk
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Fixings :: ARDEX UK - Sub-Floor
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Finishes :: Monodraught - Flue
Vents and natural Daylighting Systems
Schott - Fire Resistant Glazing ::
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systems
OWA - Suspended Ceilings ::
Osma - Underfloor Heating
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Pilkington - Low E Glass
:: Kingspan - Off Site Modular
Buildings
RMC Panel Products - Thermabate Cavity
Closers :: Wards of Bristol
- Architectural Signage
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Drainage :: Capital
Marble - Natural Stone and Ceramics
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Gilberts - High Performance Louvres
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Insulations ::
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Services Consultants
Colman - Quality Architectural Louvres
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and Sanitaryware
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& finishes :: ICEL
- Electrical Generators and Power Systems
Tyco Thermal Controls - Under floor
Heating :: Abacus -
External House and street Lighting Furniture
Marley - Floor coverings and floor finishes
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Levolux - Solar shading with external
louvres :: Kludi - Sanitary ware
and Accessories
Artemide - Architectural Lighting ::
Marshall-Tufflex
- Rain water goods and services
AET - Partitions suspended
ceilings and raised floors ::
Kingspan - High Performance
Insulations
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Panels and WC Cubicles
Polyflor - Safety Flooring and Contract Flooring
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Kitchen Ventilation systems
Task Systems - Workstations and Office
Furniture :: Polyflor - Vinyl Floor
Covering systems
L S Longden - Quality Timber doors ::
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