Concrete floors are one of the most important elements in modern industrial and commercial buildings. Expectations of clients are high and the performance criteria demanded relies heavily upon the expertise of the specialist concrete flooring contractor.
The quality of a concrete floor depends upon producing a floor slab that has a hard wearing durable surface, meeting a surface regularity, loading requirements and choice of suitable means of crack control.
J K Construction Ltd has the knowledge and experience to offer advice and guidance to assist clients to understand what can be expected of a concrete floor.
Operating in East Anglia J K Construction Ltd regularly carries out internal concrete floors utilising:
We offer advice and guidance for concrete mix evaluation alongside reinforcement and slab depth guidance, as well as joint layout and appropriate tolerance requirements.
J K Construction Ltd provide fully trained steel fixing and set up teams to install membranes, formwork and reinforcement prior to our laying teams arrival on site. This enables pre pour checks to be carried out in advance of pours where quality and attention to detail can be maintained at the highest level.
Our range of expertise includes:
For many years J K Construction Ltd have recognised that external concrete paving has received little guidance in how to construct quality concrete hard standings.
Far too often it has become common practise to allow the contractor to construct the external paving on a piecemeal basis to suit the programme. It is only when the client becomes aware that his investment is failing due to poor detailing, lack of concrete knowledge or inability to achieve designed falls that the so called savings made from not employing a concrete flooring specialist fades into insignificance.
J K Construction Ltd has four golden rules for achieving a quality durable concrete hard standing:
External paving should only be laid on a well rolled and consolidated hardcore sub-base. Free from soft spots and heaving and rutting.
Concrete should be well graded and particular attention taken to cement type and content kg/m3 as well as water/cement ratio. Due to the exposure to numerous freeze/thaw cycle’s provision for either air entrainment or the use of poly fibres should be allowed for to satisfy durability.
It is essential to create falls that enable surface rainwater to disperse quickly to pre- designed gullies and drainage channels. This is particularly important in freezing temperatures to prevent ice forming upon the slab. It is essential that an agreed bay layout be issued taking into account drainage points, docking heights, door access points and high point areas.
Whilst external concrete needs to be both hard wearing and durable the finish must offer some skid resistance to both pedestrian and vehicular movement particularly in wet conditions. Whilst a uniform brush finish can be aesthetically pleasing it is the irregularity of the texture of the surface that offers much more technical benefit.
As with all insitu cast concrete curing is essential to prevent moisture loss. J K Construction Ltd carry out a curing regime utilising spray on acrylic curing membrane to combat the effects of plastic shrinkage reducing potential early drying out of the slab and assisting in reducing the incidence of surface dusting.