ASO-EZ4 TM_GB_1016.pdf
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<h1>ASO-EZ4 TM_GB_1016.pdf</h1> <p>SCHOMBURG GmbH & Co. KG <br />Aquafinstrasse 2–8 <br />D-32760 Detmold (Germany) <br />phone + 49-5231- 953-00 <br />fax <br />+ 49-5231- 953-108 <br />email export@schomburg.de <br />www.schomburg.com</p> <p>Technical Data Sheet</p> <p>ASO®-EZ4 </p> <p>Water repellent special cement</p> <p>Properties: <br />• Water repellent <br />• Protects against efflorescence <br />• Fibre reinforced <br />• Rapid setting <br />• Long working time <br />• Foot traffic after approx. 6 hours <br />• Permits early installation of tiles <br />• For interior and exterior use <br />•C <br /> an be heated to recognised technical regulations <br />after 3 days <br />Areas of application: <br />ASO-EZ4 is a fibre reinforced special cement for the <br />production of water repellent, low shrinkage cementbased screeds and mortars that permits coverings to be <br />installed early. Due to their water repellent properties, <br />screeds and mortars produced with ASO-EZ4 offer <br />increased protection against frost damage and <br />efflorescence. As a water repellent, rapid setting mortar <br />bed when installing natural stone and tiles externally <br />and in wet areas such as balconies, terraces, loggia, <br />stairwells, swimming pools, damp environments, car <br />washes and water containers. <br />Screeds produced with ASO-EZ4 are suitable as either <br />bonded, unbonded, floating or heated screeds, whether <br />as a wearing finish or as a substrate for tiles, slabs or <br />natural stone. For installation the general directives for <br />cementitious screeds to DIN 18560 and DIN 18353 <br />are obligatory. The substrate must be able to take the <br />loading according to DIN 1055. <br />Furthermore drainage mortars can be produced with <br />ASO-EZ4, that can drain off incidental water via its <br />porous microstructure with many voids. At the same <br />time, due to their hydrophobic composition, ASO-EZ4 <br />drainage mortars do not absorb any moisture and <br />inhibit capillary action. <br />In wet duty areas classified A0, B0 in accordance <br />with the ZDB information sheet [*1] screeds produced <br />with ASO-EZ4 should be waterproofed with a suitable <br />SCHOMBURG waterproofing system. In wet duty <br />areas such as e.g. swimming pools, swimming pool</p> <p>Art.-No. 2 05527</p> <p>surrounds and communal showers and wet duty <br />classifications A, B and C in accordance with technical <br />test criteria, screeds produced with ASO-EZ4 should be <br />waterproofed with a bonded SCHOMBURG waterproof <br />membrane. <br />[*1] see advice section</p> <p>Technical Data: <br />Basis: <br />special cement, additives <br />Colour: grey <br />Mixing ratio: <br />ASO-EZ4/aggregate: <br /> <br />1:4 to 1:5 parts by weight <br />Water addition: <br />dependent on the moisture <br /> <br />content of the aggregate <br /> <br />used. 33% by weight (damp <br /> <br />earth consistency) to max <br /> <br />40% by weight (stiff plastic) <br /> <br />relative to the ASO-EZ4 <br /> <br />addition, i.e. 8.25 to <br /> <br />10 litres water per 25 kg <br /> <br />ASO-EZ4; these values refer <br /> <br />to the use of dry aggregate <br />Mix method: <br />Forced paddle mixer, free fall <br /> mixer <br />Bulk density <br />of fresh mortar: <br />approx. 2.2 kg/dm3 <br /> <br />dependent on the aggregate <br /> used <br />Storage: <br />12 months when stored dry in <br /> <br />the original unopened <br /> <br />packaging. Use opened <br /> packaging promptly. <br />Application/ <br />substrate temp: <br />+5° C to +25 °C <br />Packaging: <br />25 kg bags <br />Cleaning: <br />clean tools and equipment <br /> <br />with water immediately after <br /> use <br />Foot traffic after *): <br />approx. 6 hours <br />Fully cured after *): <br />approx. 7 days <br />Working time *): <br />approx. 40 to 60 mins. <br /> <br />(When producing drainage <br /> <br />mortars, the pot life is reduced <br /> <br />to approx. 20 – 40 minutes <br /> <br />due to the lower water</p> <p>1/6</p> <p>10/16</p> <p> <br />demand of the aggregate). <br />Strength*): <br />at a mix ratio of 1:4 by <br /> <br />weight, the use of an <br /> <br />aggregate to DIN 4226 and <br /> <br />a particle size distribution <br /> <br />between A8 and B8 closer <br /> <br />to B8, a strength greater than <br /> C35-F5 is achieved. <br />*) Values refer to +23° C and 65% relative humidity, higher <br />temperatures reduce, lower temperatures extend these given times.</p> <p>approx. consumption, kg/m2 ASO-EZ4 <br />Mixing ratio, parts by weight <br />Screed thickness, cm</p> <p>1 : 4**)</p> <p>1 : 5**)</p> <p>1</p> <p>4.1</p> <p>3.4</p> <p>4</p> <p>16.3</p> <p>13.6</p> <p>5</p> <p>20.4</p> <p>17.0</p> <p>6</p> <p>24.4</p> <p>20.4</p> <p>**) 1:4 parts by weight equal to approx. 1:2.7 parts by volume, <br />1:5 parts by weight equal to approx. 1:3.3 parts by volume</p> <p>Minimum nominal thickness to DIN 18560 <br />Beneath tiles <br />Beneath parquet, carpet, <br />linoleum or PVC <br />In general</p> <p>45 mm on insulation or <br />separating layer <br />35 mm on insulation or <br />separating layer <br />10 mm bonded</p> <p>Product preparation: <br />For preparation we recommend using the Brinkmann <br />screed boy with a 65 mm hose diameter, or other <br />conventional screed mixers PFT, Putzmeister Mixocret <br />or similar. Pay attention to the moisture content of the <br />aggregate and avoid excess water. The working time</p> <p>is approx. 60 minutes at +20 °C. Mixing, application <br />and finishing must follow each other swiftly. Only <br />measure out areas that can be completed within this <br />working time. Higher temperatures reduce and lower <br />temperatures extend the working time and setting time. <br />For bonded screeds firstly brush ASOCRET-HB-flex onto <br />the prepared, e.g. mechanically abraded, concrete <br />substrate. Lay the screed into the wet slurry coat. <br />The general directives for cement-based screeds <br />DIN 18560 and 18353 should be followed for <br />screed laying. <br />Mixing recommendations for mixing <br />and rotary feed machines: <br />In a conventional mixing machine with rotary feed <br />with a 220 litre mix capacity e.g. PFT, Putzmeister <br />Mixocret mix together a total of 200 kg aggregate with <br />50 kg ASO-EZ4. This relates to a mixer capacity of <br />approx. 80% - which is generally recommended by the <br />equipment manufacturers. <br />Please observe the following steps: <br />First half fill the mix vessel with aggregate 0/8 (approx. <br />15 shovels at 7 kg), approx. 5–6 litres of water and <br />50 kg of ASO-EZ4 and mix to a plastic consistency for <br />2 minutes. Then fill the mixing vessel with the rest of the <br />aggregate (dependent on the mixing ratio another 15 <br />shovels at 7 kg) and the remaining water. Dependent <br />on the moisture content of the aggregate a total of <br />approx. 10–20 litres of water will be necessary. The <br />latter value relates to dry aggregate. In general 0/8 <br />aggregate has a moisture content of approx. 4%, <br />therefore 8 litres of water are already contained in <br />200 kg of aggregate, however there are certainly large <br />variations in the quantity. Keep to a total mix time of 4 <br />minutes, as only then are all components dispersed and <br />the final consistency achieved. <br />Mixing recommendation for mortar: <br />Mix ASO-EZ4 to a mix ratio of 1 : 3 by volume <br />(equates to 1 : 4.5 parts by weight) with aggregate (of <br />particle size 0–4 mm diameter) in a suitable compulsory <br />mixer. Minimum mix time 4–5 minutes. Protect the fresh <br />screed from drying out too quickly e.g. through heat <br />or drafts.</p> <p>2/6</p> <p>10/16</p> <p>Readiness to be tiled: <br />The screed is ready to take tiled finishes after three <br />days when installed at 5 cm thick when the ambient <br />and substrate temperatures are at +23 °C and the <br />relative humidity is 50% and when the mixing ratio is <br />1:4 parts by weight and dry aggregate conforming <br />to DIN 4226 is used with a particle size distribution <br />between A8-B8 closer to B8 with consistent grading <br />and with a water addition of 17 litres per 50 kg <br />ASO-EZ4. Confirmation should be sought by measuring <br />the moisture content with a carbide hygrometer (CM). <br />For screeds that need to conform to a particular <br />screed quality in accordance with DIN EN 13813, <br />performance tests will be required. These are to be <br />carried out prior to commencing work. <br />Mixing and application recommendations <br />for water permeable drainage mortars <br />(also known as single grain mortars, <br />mono grain mortars or drain mortars): <br />Mix ASO-EZ4 to a mix ratio of 1:3 by volume (equates <br />to 1:4 parts by weight) with aggregate without fines in <br />a suitable screed mixer. In this context use aggregate <br />e.g. fine flint of particle size 2/5 mm, 5/8 mm, 8/12 <br />mm, or pearl gravel of particle size 4/8 mm. The <br />choice of aggregate is to be made from the desired <br />mortar bed thickness and availability. The water <br />addition is to be varied according to the moisture <br />content of the aggregate. When using dry aggregate <br />approx. 30 to 36% by weight of water related to the <br />ASO-EZ4 addition, i.e. 7.5 to 9 litres of water per <br />25 kg ASO-EZ4 is needed. As a consequence of <br />the low water demand of the aggregate used, very <br />low w/c values are reached. Therefore the pot life <br />of drainage mortars is reduced to approx. 20 – 40 <br />minutes. Only add enough water to the fresh mortar <br />until a damp earth consistency is achieved. The <br />minimum thickness of the mortar bed must be determined <br />by the aggregate used as well as the total construction <br />and the expected service loads. Ensure adequate <br />drainage of the sub-base. <br />The following steps should be taken: <br />Fill a suitable screed mixer with ASO-EZ4 and <br />aggregate in the mixing ratio 1:1 by volume.</p> <p>Subsequently add water and dependent on the screed <br />mixer, mix for 4 to 5 minutes in order to achieve <br />a viscous mortar after this mix time. Now add the <br />remaining two parts of aggregate by volume, mix for <br />a short while until a homogenous drainage mortar with <br />a damp earth consistency is achieved. The consistency <br />is correct when the fresh, lightly glistening mortar can <br />be squeezed together in the hand but falls apart upon <br />opening the hand. Drainage mortars that are too damp <br />lose their ability to drain because the voids between <br />the grains become clogged with binder. Lay natural, <br />concrete slabs or ceramic tiles professionally into the <br />drainage mortar. <br />Different variations are possible: <br />a) Bonded drainage screed on a load bearing <br />concrete slab <br />Brush a bonding slurry of ASOCRET-HB-flex to saturation <br />onto the load bearing substrate that has been laid with <br />adequate falls and e.g. waterproofed with AQUAFIN2K/M. Subsequently install the drainage mortar with a <br />damp earth consistency into the wet bonding coat and <br />strike off to the designed level. Due to the aggregate <br />the drainage mortar is virtually self-compacting and only <br />needs to be lightly tamped. <br />Coat the rear of the slabs/tiles with ASOCRET-HB-flex <br />and lay them into the freshly installed mortar bed and <br />tap into position. Dependent on the finishing material, <br />grouting is carried out with CRISTALLFUGE PLUS, <br />ASO-Flexfuge or HF05-Brillantfuge after 3 days at <br />the earliest. The minimum thickness is 3 cm but also a <br />minimum of 5 times that of the largest particles used. <br />Ensure there is adequate dewatering if the drainage <br />layer. I.e. an adequate fall of min. 2-3% in the sub-base <br />and on the surface of the finishing material is to be <br />designed. To improve the horizontal dewatering effect <br />we recommend variation b. <br />b) Drainage screed on a separating layer on a <br />concrete slab e.g. Aquadrain EK, GUTJAHR <br />Install a drainage mat e.g. Aquadrain EK onto the <br />waterproofed, e.g. with AQUAFIN-2K/M, load <br />bearing substrate. Subsequently apply the drainage <br />mortar in a damp earth consistency, lightly tamp, install <br />edge sections and strike off to the designed level. Coat</p> <p>3/6</p> <p>10/16</p> <p>the rear of the slabs/tiles with ASOCRET-HB-flex and lay <br />them into the freshly installed mortar bed and tap into <br />position. Dependent on the finishing material, grouting <br />is carried out with CRISTALLFUGE PLUS, ASO-Flexfuge <br />or HF05-Brillantfuge after 3 days at the earliest. The <br />minimum thickness is 5 cm but also a minimum of 5 <br />times that of the largest particles used. Ensure there is <br />adequate dewatering of the drainage layer. I.e. an <br />adequate fall of min. 1 to 2% in the sub-base and on <br />the surface of the finishing material is to be designed. <br />c) Bonded or on a separating layer as described <br />in a) or b) onto the pre-installed cured drainage <br />screed <br />Install the natural stone or ceramic finish in a thin-bed or <br />medium-bed adhesive onto the cured drainage screed <br />that has been installed to the designed level, lightly <br />abraded and smoothed. The installation of the tiles is <br />carried out with CRISTALLIT-flex, CRISTALLIT-MULTI-flex <br />or LIGHTFLEX that have each been modified with 2 kg <br />UNIFIX-B per 25 kg (15 kg for LIGHTFLEX). Once the <br />thin-bed or medium-bed adhesive has cured, grout <br />with CRISTALLFUGE PLUS, ASO-Flexfuge or <br />HF05-Brillantfuge. <br />d) Floor finishes in the drainage mortar onto an <br />unbonded mineral-based base layer <br />This type of construction is suitable for light duty areas <br />such as garden paths, terraces, private driveways, <br />private entryways etc. With floor finishes where <br />subsidence is likely choose another construction as <br />described previously. The substrate in question must be <br />load bearing, able to drain and adequately designed <br />for the planned dynamic loads. Advice can be taken <br />from the directives for earthworks and road construction <br />– see “important advice” section. <br />• T he supporting substrate – soil direct to prepared <br />ground or adequately compacted hardcore – should <br />be struck off to falls. With cohesive soil layers, design <br />falls in the substrate ≥ 3% and where necessary <br />provide drainage. In all cases ensure there is <br />adequate dewatering of the sub-base. <br />• In order to avoid penetration from fines in slurry form <br />or from neighbouring soil into the construction – that <br />will eventually impair the drainage – install edge</p> <p>•</p> <p>• <br />•</p> <p>•</p> <p>aprons. Other measures that prevent the backflow of <br />surface water or penetration into the soil such as e.g. <br />channels, edging blocks are also possible. <br />Arrange in layers a compacted cement-based <br />supporting layer e.g. 0/45 mm, 0/32 mm ballast <br />as a capillary breaking layer onto the prepared <br />substrate. Dependent on the trafficking and sub-base <br />an approx. 20 cm (sandy substrate) to 40 cm (loamy <br />substrate) thick compacted supporting layer will be <br />necessary. <br />The supporting layer is subsequently overlapped with <br />the water permeable protective and slip membrane <br />ASO-Systemvlies-02. <br />Subsequently apply the drainage mortar in a damp <br />earth consistency, lightly tamp and strike off to the <br />designed level. The minimum thickness is 6 cm but <br />also a minimum of 5 times that of the largest particles <br />used. Coat the rear of the slabs/tiles with ASOCRETHB-flex and lay them into the freshly installed mortar <br />bed and tap into position. The slabs/tiles must be <br />frost resistant, minimum 3 cm thick and laid to falls of <br />minimum 1.5% or up to 3% for rough surfaces in the <br />direction of the dewatering. <br />Grouting is carried out after a minimum of 3 days <br />with a water permeable grout based on plastic resin.</p> <p>Important advice: <br />• Instead of ASOCRET-HB-flex use an alternative <br />bonding slurry consisting of ASOPLAST-MZ diluted <br />1:1 to 2 with water and screed mortar consisting of <br />1 part by volume of ASO-EZ4 and 2 parts by volume <br />of aggregate of particle size 0-4 diameter. <br />• When installing tiles and pool edging tiles by the <br />thick-bed method, we recommend the pre-blended <br />mortar ASO-EZ4-Plus. <br />• ASO-EZ4 is ready to receive floor finishes quickly <br />because it contains additives that require an <br />especially low water demand. If more water is <br />added than needed to achieve a stiff or stiff plastic <br />consistency, the excess water cannot be bound within <br />the system and must evaporate. This leads to the <br />screed being ready to receive finishes later. <br />• If a shorter mix time is selected or mixing is <br />not intensive enough, then the dispersion of all <br />components is not guaranteed. The readiness to</p> <p>4/6</p> <p>10/16</p> <p>• <br />•</p> <p>•</p> <p>•</p> <p>receive finishes early and high strength are no <br />longer guaranteed. <br />ASO-EZ4 already contains fibres. If additional fibres <br />are to be mixed in, this can lead to delays in the <br />readiness to receive finishes. <br />For installation in areas where there is an inadequate <br />aggregate quality or where storage of the mortar <br />components is not possible or desired, the preblended mortars ASO-EZ4-Plus, ASO-EZ2-Plus, <br />ASO-EZ6-Plus or ASO-EZ-LIGHT are available. <br />Lower temperatures, high humidity and thick <br />screeds delay the setting, drying and achievement <br />of readiness for laying finishes (see also the BEB <br />data sheet “climatic requirements for the drying of <br />screeds”). Trials have shown that at lower temperatures <br />(+5 °C to +12 °C) the binding of the water proceeds <br />at a delayed rate so that the readiness to receive floor <br />finishes was only achieved belatedly. <br />Water that bleeds to the surface indicates too much <br />water or aggregate addition (more than 3.3:1 by <br />volume equating to 5:1 parts by weight), the wrong <br />particle size distribution or inadequate mixing. This</p> <p>results in a sandy surface. <br />• If when smoothed off the surface cannot be <br />adequately closed, this indicates that there are too <br />little fines in the aggregate. Here greater quantities of <br />ASO-EZ4 are required to replace the missing fines. <br />• Where there is rising damp from the substrate, a <br />functioning damp proof membrane is necessary prior <br />to laying the screed. Not relevant in conjunction with <br />finishes on drainage mortars on an unbonded mineralbased supporting layer. <br />• Ventilation on site is necessary. By high temperatures, <br />direct sunlight and drafts, protect the screed from <br />water loss during drying. To ensure ideal hydration of <br />cement, the screed can be protected during the curing <br />phase e.g. with plastic sheeting or with continuous <br />light misting. The interior and floor temperature during <br />application and for 1 week afterwards must be a <br />minimum of +5 °C. De-humidifiers may not be used <br />during the first 3 days. <br />• To determine the screeds readiness to receive finishes <br />carry out moisture measurements using a carbide <br />hygrometer (CM). Keep to the following limits:</p> <p>Maximum moisture content of the screed determined with a carbide hygrometer <br />Floor finish</p> <p>heated</p> <p>unheated</p> <p>Vapour impervious finishes</p> <p>1.8 %</p> <p>2.0 %</p> <p>Vapour barrier</p> <p>1.8 %</p> <p>2.5 %</p> <p>Vapour permeable</p> <p>2.0 %</p> <p>3.0 %</p> <p>Parquet</p> <p>1.8 %</p> <p>2.0 %</p> <p>Laminate flooring</p> <p>1.8 %</p> <p>2.0 %</p> <p>Thick bed</p> <p>2.0 %</p> <p>2.0 %</p> <p>Thin bed</p> <p>2.0 %</p> <p>2.0 %</p> <p>Textile finishes</p> <p>Ceramic tiles, natural stone/ <br />concrete slabs</p> <p>The measurements with the carbide hygrometer are to be carried out in accordance with the current work instructions of the <br />FBH-AD from the technical information “coordination of cut out areas for heated floor constructions”.</p> <p>5/6</p> <p>10/16</p> <p>• T he quality of the aggregate used determines the <br />properties of the screed produced with it. The <br />aggregate must not contain any deleterious or <br />coloured constituents. Aggregate to DIN 4226 with <br />a consistent grading between A and B closer to B to <br />DIN 1045 should be used. If aggregates with other <br />particle size distributions are used, then the binder <br />demand can increase. Aggregates with a grading <br />between B and C to DIN 1045 require a high level <br />of ASO-EZ4. Which grade for which screed thickness <br />should be taken from the following table: <br />Grading </p> <p>Minimum <br />thickness</p> <p>Maximum <br />thickness</p> <p>0 – 4 mm</p> <p>10 mm</p> <p>40 mm</p> <p>0 – 8 mm</p> <p>25 mm</p> <p>80 mm</p> <p>0–16 mm</p> <p>50 mm</p> <p>160 mm</p> <p>• P erimeter, bay, construction and movement joints <br />are to be carried through or incorporated in the <br />designated position and composed of suitable <br />material e.g. edging strip. Crack control joints are to <br />be cut into the top third of the installed screed. <br />• Do not mix with other cements or binders. <br />• Do not add any additives or other materials. <br />• T ake heed of the technical data sheets for the <br />aforementioned products. <br />• T he relevant current regulations are to be observed. <br />E.g. <br /> DIN 18157 <br />DIN 18318 <br />DIN 18332 <br /> DIN 18333 <br />DIN 18352 <br />DIN 18560 <br /> DIN EN 13813 DIN 1055 <br />DIN 1045 <br /> DIN 4226 <br /> The BEB data sheets distributed by the National <br /> Association for Screeds and Finishes <br /> The technical information “coordination of cut out <br /> areas for heated floor constructions” <br /> The ZDB data sheets distributed by the Technical <br /> Association of the German Tile Industry. <br /> [*1] Bonded waterproof membranes <br /> [*2] Ceramic finishes subjected to high mechanical <br /> stress. </p> <p> <br /> <br /> <br /> <br /> <br /> </p> <p>[“3] Movement joints in tiled finishes. <br />[*5] Ceramic tiles, slabs, natural stone and concrete <br />blocks on cement-based screeds over insulation. <br />[*6] Ceramic tiles, slabs, natural stone and concrete <br />blocks on heated cement-based floor constructions. <br />[*7] Exterior finishes. <br />[*8] Advisory handbook for the planning and <br />implementation of drainage and gullies in <br />combination with bonded waterproof membranes. <br /> [*9] External staircases. <br /> [*10] Swimming pool construction. <br /> The technical structural information for natural stone <br /> slabs from the German Association for Natural stone <br /> slabs, especially the information paper DNV 1.4 <br /> floor finishes, external. <br /> Directives for earthworks and road construction: <br /> The “directives for earthworks and road construction”, <br /> RStO-2001. <br /> The ZTV E-StB. 94 “Additional technical contractual <br /> terms and directives for earthworks and road <br /> construction”. <br /> The ZTVT-StB. 95 “Additional technical contractual <br /> terms and directives for supporting layers in road <br /> construction”. <br /> The FGSV-working paper “Paved areas with block <br /> pavers and slab finishes accomplished by bonding”, <br /> draft September 2003 from the Research Association <br /> for road and traffic systems. <br />Please observe a valid European safety data sheet! <br />GISCODE: ZP1</p> <p>This technical data sheet is a translation from the German language version and does not consider local building codes or legal requirements. It shall be used as general <br />reference for the product. Legally binding is only the German technical data sheet or the latest Data sheet from one of our foreign subsidiaries inside their sales territory.</p> <p>6/6</p> <p>WKD/CoS/JD 10/16</p>
