Page 15 - Designing Ways 239
P. 15

Keep to the rules
                for successful


               concrete floors


                 he construction of industrial
                 floors,  such as warehousing and
           Tfactory floors, calls for concrete
           with specific characteristics, says Bryan
           Perrie, managing director of The Concrete
           Institute  (TCI),  which  monthly  receives
           huge volumes of appeals for advice
           regarding faulty flooring.
             “It is also important for the tenant or
           property owner to fully brief architects
           and concrete designers about the logistics
           system and loading weights on the floor
           being planned to help define the loading
           criteria for the concrete mix. If incorrect
           information is supplied, the same
           serviceability  criteria used for routine
           slabs could  be selected – with disastrous
           results when handling huge volumes of
           heavy forklift movement and racking,”
           Perrie adds.
             Concrete  for  flooring  calls  for  correct
           design, materials, and proportions.
           Material specifications for all the   placement of concrete and the finishing of   of material selection, environmental
           ingredients of the concrete exist - and   floor slabs.               inconsistencies, as well as handling and
           should be adhered to - as well as South   “A thorough understanding of all the   finishing, are essential to produce a quality
           African Codes of Practice for the actual   characteristics of concrete, the influence   floor. A disregard for any of these factors
                                                                                leads to problems normally encountered
                                                                                too late to be corrected,” he states.
                                                                                  Consistency  by  the  contractor  is  also
                                                                                crucial throughout: receiving the concrete,
                                                                                discharging, placing, consolidating and
                                                                                finishing. Protecting the  concrete while
                                                                                being placed and cured is also vital.
                                                                                  “Lack  of  attention  to  correct
                                                                                proportioning, handling and finishing,
                                                                                inexperienced contractors, all could
                                                                                contribute to a floor with poor durability,
                                                                                strength and aesthetics. Concrete flooring
                                                                                relies on the successful completion of
                                                                                successive phases: understanding what is
                                                                                being  done  in  each  design phase, using
                                                                                the right concrete and equipment, by the
                                                                                right person at the right time,” he adds.
                                                                                  “Concrete Industrial Floors on the
                                                                                Ground’, a one-day training course on
                                                                                all facets of industrial floor design and
                                                                                construction, will be presented online on
                                                                                June 1 by TCI.              dw

                                                                                   www.theconcreteinstitute.org.za






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