Building System > the External Walls

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Dimensions of the element:

  • Cross section: 7.50cm (width) x 6.5cm (height)
  • Element span: 6 metres (maximum)
  • Weight: 10 kg for every linear metre, maximum 60 kg
  • Concrete: 50MPa
  • Reinforcement strand: 5mm - 8mm steel strand

External Walls' Brief

Walls can be single- or double-layered to allow a cavity for placing insulation material in external walls. Double walls are mostly used in countries with extreme weather conditions, while the single-layer are mostly used in internal partitions.

The cast-on-site edge and corner columns act as jointing material to the Locrete elements in the walls and beams. The outer layer of the external walls acts as the framing shutter for casting the topping on slab elements.

Building External Walls

Locrete walls are constructed by stacking cut to length Locrete elements that are delivered to site with the wire strand extending 5-10 cm on each element end. Wall elements are fitted into pre-fabricated steel shuttering systems which will form the cast-on-site columns with each column fitted with structurally required reinforcement. The walls are built in two planes with 5 cm thick insulation panels fitted into the cavity.

After the construction of the walls to the levels specified in the drawings, the columns are then concreted and left to dry with the result being a load bearing wall with rigid connections at the column points.

The walls have horizontal joints which can be closed by plastering the walls or by placing bituminous lining between consecutive elements or by lining the joint with chemically treated cement-based lining mix.

The external elements of a double-layered external wall are built to a higher level than the roof slab, which allows the concrete topping on the roof to be cast without having to shutter the sides.

Doors and window openings are achieved by supplying Locrete elements cut to size ex-factory and installed, as per the design. These openings can be framed with precast concrete panels, marble; they can be plastered in frame or as part of internal and external wall plastering.

If building a double-wall, five centimetre insulation material in the cavity is enough to meet the heat insulation and energy saving requirements of the construction. This layer can be increased to any thickness to any standard of energy saving. Locrete wall elements span up to six metres and in all cases must be hinged on at least one end into cast-on-site reinforced concrete columns.

All Locrete elements can be cut on site with a hand tool, with elements on the exterior plane of the double wall or single wall able to be cut at the existing slab level to allow resting new slab elements for expansion of the structure.