Page 76 - 2018 DIGITAL BROCHURE
P. 76

TRACKCRETE





            Method of use                                                      Application



            Preparing the surface             Mixing                           General
            Do not use on frozen or over      For optimum results mix using    Place the material as quickly
            heated substrates (outside the    conventional mixing machines.    as possible after mixing using
            range of 0°c-30°c). Prepare the   To no more than 2 litres of clean   traditional tools. A 35mm
            surface in advance to provide an   water per bag, gradually add    minimum thickness of the material
            adequate key. It should be clean,   whilst mixing the TRACKCRETE.    is always necessary. Do not apply
            free from dust and thoroughly     If one bag or less is to be used   additional water to the surface
            dampened. Where necessary         it can be mixed with a rose bud   during finishing as this may cause
            steel or aluminium mesh can be    type paddle attached to an       surface cracking. Once setting
            used. Ensure that a 35mm          electric drill (900rpm, 1000w). Mix   has started DO NOT attempt to
            minimum thickness of material is   vigorously for at least 2 minutes   remix or to smooth the surface,
            obtained.                         after adding all the mixture to the   this will cause the mechanical
                                              water. TRACKCRETE is designed    properties in particular strength
            Priming                           to give a fluid mix but this only   and adhesion to be lost.
            There is no need to prime any     develops after sufficient mixing.
            reinforcement, but if priming is   The mix will appear dry at first.   Concrete repairs
            preferred, any conventional       Continue mixing until fluidity   Remove all loose material from the
            system may be used.               develops. If greater fluidity is   concrete and the reinforcement.
                                              required, more water up to 2.25   It is only necessary to remove the
                                              litres may be used. Exceeding this   loose rust from the reinforcement.
                                              ratio will lead to lower strength,   Prepare the surface as described
                                              longer setting time and the risk of   previously. Fix any necessary
                                              surface cracking. In cold weather   replacement reinforcement and
                                              the set can be accelerated using   formwork. Well dampen the
                                              warm water, likewise in hot      surface with water ensuring there
                                              weather cold water can be used   is no standing water. Mix the
                                              to slow down the set.            material and apply as previously
                                                                               recommended ensuring that the
                                                                               TRACKCRETE is worked around
                                                                               the reinforcement. Protect the
                                                                               surface from direct sunlight or
                                                                               wind until setting has completed.
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