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Ardex A35 25kg

£32.15 per m2 (excl. VAT)

Ardex A35 is a repair compound and is one of the sub-floor preparation products.nnnnThis floor screed is a versatile smoothing compound for levelling uneven floors before laying decorative floor coverings.nnnnArdex A35 self levelling screed is suitable for use over most substrates and adhesive residues.

Description

Ardex A35 is a repair compound and is one of the sub-floor preparation products.nnThis floor screed is a versatile smoothing compound for levelling uneven floors before laying decorative floor coverings.nnArdex A35 self levelling screed is suitable for use over most substrates and adhesive residues.nnARDEX A 35 is a special cement for producing a rapid setting,nrapid hardening and ultra rapid drying floor screed. After onlynone day the compressive strength and tensile bending strengthnof an ARDEX A 35 screed exceeds the acceptable minimumnattained by an ordinary cement screed after 28 days and isnalso dry, irrespective of thickness. ARDEX A 35 can be usednto produce a bonded screed, an unbonded floor screed laidnonto a membrane, or a floating floor screed laid onto a ncompressive quilt/insulating material. Bay divisions andnexpansion joints should be incorporated as for normalncement/sand screeds, taking into account the advice given nin the code of practice for the flooring being subsequentlynapplied (See British Standard Codes of Practice).nThe mortar is mixed and applied in the same way as for normalncement/sand mortar, except that the working time is reducednto approximately 60 minutes at 20°C. ARDEX A 35 can benwalked on 3 hours after application and is dry enough tonreceive floorcoverings after 24 hours at 20°C. However, wherenthe ARDEX A 35 screed is smoothed immediately after napplication with ARDEX A 55 Ultra Rapid Drying Self-LevellingnCompound, vinyl and textile floorcoverings may be applied nafter as little as 4 hours. nNOTE: Where the concrete base is insufficiently dry, or isndirect to ground without an effective protection from risingndamp, the ARDEX A 35 cement and sand screed must be laidnover an effective damp proof membrane, e.g. ARDEX DPM fornbonded screeds, or a suitable sheet membrane for unbondednor floating screeds.nUSEnARDEX A 35 is used to produce bonded, unbonded and floatingnscreeds in internal situations where early foot traffic isnrequired and where rapid drying is essential, e.g. to allownfloorcoverings, ceramic tiles or natural stone tiles to be laidnafter one day irrespective of thickness.nSee overleaf for mix proportions and grades of sand used.nA 1:4 mix is used where a very heavy duty floor is required.nA 1:5 mix is suitable for all normal screeding situations.nARDEX A 35 screeds are not recommended on ground supportednconcrete floor slabs without an effective damp proof membrane,nfor use as a wearing surface, or in wet locations. nSee the SYSTEMARDEX commercial flooring brochure nfor various applications.nTHICKNESSnARDEX A 35 should be applied at the conventional thicknessesnfor normal cement/sand screeds i.e.nMinimum 15mm, (design thickness up to 40mm) nfor bonded screeds. nMinimum 50mm for unbonded screeds.nMinimum 75mm for floating screeds, n65mm in lightly loaded (domestic) locations.nSUBSTRATE PREPARATIONnBonded ScreednThe ARDEX A 35 cement and sand screed can be laid as anbonded screed by applying an ARDEX A 35 grouting slurry tona dry and suitably prepared concrete base. If the concrete isnnot dry, 2 coats of ARDEX DPM may be used prior to applyingnthe ARDEX A 35 screed ‘fresh in fresh’ in a priming layer ofnARDEX R 3 E or a third coat of ARDEX DPM.nTo prepare the grouting slurry dilute ARDEX P 51 with annequal volume of water. Mix the ARDEX A 35 cement with thendiluted bonding agent to produce a creamy consistency ngrouting slurry.nNOTE: If the concrete base is very rough, the grouting slurrynshould be prepared by mixing the ARDEX A 35 cement withnan equal amount of sand prior to mixing with the dilutednbonding agent.nThe ARDEX A35 cement and sand screed mortar must bencompacted onto the base ‘fresh in fresh’, whilst the groutingnslurry is still wet and workable.nUnbonded ScreednFor unbonded screeds it is good practice to ensure that nthe concrete slab surface is reasonably true and flat prior nto applying a separating or damp proof membrane.nFloating ScreednFor floating screeds, place a suitable separating or damp proofnmembrane over the insulation before applying the screed mortar

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