Davco K11 德高防水胶浆

2023年12月27日发(作者：魏容)

DAVCO K11DESCRIPTION• An alkali-reactive waterproofing product basedon alkali resistant synthetically modifiedcement.• The Davco K11 waterproofing concept is basedon the crystallisation process. Davco K11compounds combine with free water and otherelements in the substrate to produce awaterproof membrane. The unique and highlyeffective components of the Davco K11systems chemically react within the pores andcapillaries upon exposure to the moisture andthe elements. This chemical reaction initiatesthe formation of the crystalline structure withinthe pores and capillaries, to become an integralpart of the structure and block the passage ofwater.• Davco K11 is a brush or spray applied,Portland cement based system forwaterproofing concrete and masonry throughthe crystallisation process. Davco K11waterproofs the positive side or the negativeside of the substrate. Following properapplication, active water pressures force thecrystal forming chemicals deeper into the sub-surface capillaries and pores to form amonolithic bond and become an integral part ofthe • Davco K11 is applied to interior or exteriorbelow grade surfaces and between horizontalstructural slabs and toppings to protect againsthydrostatic water pressure. These surfacesinclude concrete, concrete block, brick andshotcrete.• Davco K11 Can be used in a variety ofinstallations, some examples being:◊ Subway Stations◊ Swimming Pools◊ Mines◊ Fish Hatcheries◊ Tunnels◊ Solar Water Tanks◊ Aquariums◊ Cooling Tower Basins◊ Elevator Pits◊ Basements◊ Planters◊ Floors◊ Manholes◊ Sewage TreatmentPlants• Davco K11 is approved as a mineralwaterproofing layer for the protection ofbuildings against ground moisture, i.e. groundwater under pressure (rising damp etc.) andagainst surface water, rainfall, seepage, and ingeneral against water under a low hydrostaticpressure. It is also approved for the internalcoating of potable water containers up to aheight of 5m, on all sound mineral • IMPORTANT - Ensure any lumps in the DavcoK11 powder are broken up prior to mixing withLanko 751 Lankolatex SBR.• Mix 25kg of Davco K11 powder into 5L ofLanko 751 Lankolatex SBR gauged with 4L ofclean water. Always add Davco K11 powder tothe gauging liquid. Using a mechanical mixermixed until a smooth creamy consistency LE SUBSTRATESDavco K11 may be applied to:• Sound concrete (strength B 15 in accordancewith DIN 1045)• Brickwork (DIN 105/106/398); hollow concreteblocks (DIN 18 153); all pointing must be flushand pre-wetted.• Render at least 10mm thick (DIN 18550 MortarGroup III) applied with a smooth trowel and witha sound and permanent bond to the tions and Footings• Davco K11 should only applied to structureswhich are not subject to conditions that couldresult in warping or movement.•

Settlement should have finished, and thestructure should not be subject to any furthermovement.•

The structure should be free of live es Against External Hydrostatic Pressure• In order to prevent an increase in the level ofwater pressure, the land around the buildingmust be adequately provided with a drainagesystem - e.g. to cope with changes ingroundwater r 2002

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DAVCO K11TYPICAL K-11 APPLICATIONSSURFACE PREPARATION• The surface prior to treatment must be solid,even, porous and free of dust pockets, laitance,moving joints or cracks. Should any cracks ormovement joints be present, please refer toinformation below on methods of treatment. Sharpedges must be removed, and all wall/floor andwall/wall angles rounded by putting in place a filletof sand/cement (3 sand: 1 cement) mixed withdiluted Lanko 751 Lankolatex SBR (mixed 1 partLanko 751 Lankolatex SBR: 4 parts water).

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The surface must be free of bitumen, oil,grease, curing compounds, releaseagents, mould, paints and any othercontaminating nt jointsAll expansion and movement joints should besealed with a suitable joint sealant after applicationof the Davco K11. Consult your ParexDavco(Australia) Pty Ltd state office for advice on the jointsealing method best suited to your TreatmentAll shrinkage and non-moving structural crackshaving a width equal to or less than

0.5 mm will bewaterproofed by the application of Davco cracks wider than 0.5 mm must be routed outto form a 'V' shaped groove with a hand or powerchisel, to a depth and width of approximately 25mm. These larger cracks must be repaired bypriming the chiselled out crack with one coat ofDavco K11. Whilst this primer coat of Davco K11 isOctober 2002

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DAVCO K11still wet, it should be followed by the application ofLanko 731 Repair Mortar to fill the rebate flush withthe concrete cracks cannot be waterproofed with DavcoK11. Consult your local ParexDavco (Australia) PtyLtd office for advice regarding the best method ofwaterproofing live ATION•

The surface must be pre-wetted to saturation andbe thoroughly damp, but have no free water on applying the Davco K11, the substrate shouldappear matt, and there should be no signs ofglistening water on the surface.• The slurry is applied using a brush, broom orspray machine. Ensure the material isthoroughly mixed before applying.• The coating should be applied to the wholesurface in at least two coats. Apply the secondcoat at 90º to the first coat while the first is stillgreen. In no instance should the total thicknessexceed 5mm.• The slurry must not be applied at temperaturesbelow 50C or on frozen surfaces.• Before applying further coatings, e.g. renders,tile adhesives etc onto K11, allow the K11 tofully ng the Coating• The surface must be checked for faults beforeapplying the next coat (e.g., before applicationof screed).After Treatment• After treatment is not obligatory. For at least 24hours after application the Davco K11 must beprotected from rain, harsh sunlight andparticularly from tion of the Coating / Overcoating• Subsequent layers (e.g. renders, tiles, screeds,etc.) may be applied only when the Davco K11has fully hardened. Plasters containing limemust not be applied to Davco K11.

• A key coat, comprising 1 part Lanko 751Lankolatex SBR: 1 part water: 1 part cementshould be brushed onto the surface prior to anyapplication of subsequent TIONS• Davco K11 is a cement-based product andcontains alkali, which can cause ore applicators should wear PVC orsimilar gloves, and safety goggles.• For a full MSDS contact your ParexDavco(Australia) Pty Ltd state office.• For the uses of Davco K11 not mentioned inthese instructions, contact your localParexDavco (Australia) Pty Ltd state GEGround MoistureApprox 2kg/m2Hydrostatic Pressure(2 coats of 1kg/ m2

ea)On the negative sideApprox 4kg/m2CLEAN UPClean tools immediately after use with ING• Davco K11 – Grey 25kg bags

• Lanko 751 Lankolatex SBR - 5 litre and 20 LIFEDavco K11 has shelf life of up to 12 months storedin sealed original containers in a dry place. Notfrost CERTIFICATES• Singapore Institute of Standards and IndustrialResearch: Contact with potable water.• National Organisation for Potable Water andSanitary Drainage, Saudi-Arabia: Waterimpermeability.• Government testing institute for earths andminerals, Clausthal-Zellerfeld: Independentquality control contract.• Institute for concrete and reinforced concrete,official testing station, University of Karlsruhe:Water impermeability in accordance with DIN1048.• Institute of Hygiene for the Ruhrgebiet,Gelsenkirchen: Waterproofing potable watertanks.• Chemical Laboratory, Bubeck: Study of thebacterial colonisation of mortars, and: Study ofthe change in pH volume of water in contactwith concrete and K11 r 2002

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DAVCO K11TEST PROPERTIESResults of Law Engineering Testing Company st MethodCureTimeAdhesionASTME-14928 daysResults (Avg.)118 psi on open structure124 psi on closed structureconcrete74 psi on steel formedconcrete128 psi on clay brick112 psi on concrete brickTensileASTMC – 19028 daysStrength332 psi at 100% ts (Avg.)116psi at 50% ralASTMC – 5807 daysStrength472 psiResults (Avg.)PermeadbilityARMY C.E7 daysResults (Avg.)CRD-C 48-552.6 x 10-8cm/sec (coats)1.7 x 10-8cm/sec (3 coats)Tested at water heads of4.3ft to 178ftTECHNICAL DATAProperties:Pot Life: ≥ 3 hoursInitial Set: ≥ 4 hoursFinal Set:≥ 5 hoursBending StrengthAfter 2 days:≥ 5N/mm2After 28 days:≥ 22N/mm2Compressive StrengthAfter 2 days:≥ 7N/mm2After 28 days:≥ 50N/mm2µ-Value:≥ 100Chloride Content:≥ 0.002%Dynamic E-modulus after 90 days:≤30,000N/mm2Adhesive Strength:≥ 3N/mm2Water impermeability at a water pressure of:a) 15m head of water (for 28days)Impermeableb) 70m head of water (for 24 hours)Impermeablec) 140m head of water on the

Negative side for 200 hoursImpermeableDISCLAIMERThe use of this product is beyond the manufacturer’s control, andliability is restricted to the replacement of material proven faulty. Themanufacturer is not responsible for any loss or damage arising fromincorrect usage. All workmanship must be carried out in accordancewith AS 3740 - information contained herein is to the best of our knowledge trueand accurate. No warranty is implied or given as to its completeness oraccuracy in describing the performance or suitability of the product for aparticular application. Users are asked to check that the literature intheir possession is the latest r 2002

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