ASO-SEM Technical Data Sheet EN 0519.pdf
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<h1>ASO-SEM Technical Data Sheet EN 0519.pdf</h1> <p>SCHOMBURG GmbH & Co. KG <br />Aquafinstrasse 2–8 <br />D-32760 Detmold (Germany) <br />phone + 49-5231- 953-00 <br />fax + 49-5231- 953-108 <br />email export@schomburg.de <br />www.schomburg.com</p> <p>Technical Data Sheet</p> <p>ASO®-SEM </p> <p>Art. no. 2 06543</p> <p>Rapid setting pre-blended dry mortar that is ready <br />to receive tiles and boards quickly <br />produced with the pre-blended dry mortar ASO-SEM is <br />applicable for use if a suitable SCHOMBURG bonded <br />waterproof system has been applied. In swimming pools, <br />wear class B in accordance with the ZDB data sheet <br />[*1], or the water impact classes W1-B to W3-B per <br />DIN 18535, we recommend using screed produced from <br />ASO-EZ4 / ASO-EZ4-PLUS.</p> <p>SCHOMBURG GmbH & Co. KG <br />Aquafinstraße 2–8 <br />D-32760 Detmold <br />19 <br />2 06543 <br />EN 13813 <br />ASO-SEM <br />Cement-based screed mortar for application inside buildings <br />Reaction to fire 96/603/EC <br />Release of corrosive substances <br />Compressive strength <br />Flexural strength </p> <p>Class A1fl <br />CT <br />C40 <br />F6</p> <p>[*1] Refer to notes</p> <p>Technical data: <br />Basis: Special cement, additives, <br />aggregate <br />Colour: Cement grey <br />Water addition: 1.5 l / 25 kg ASO-SEM <br />(6.0 % water) <br />Mixing method: Forced paddle mixer, <br />free fall mixer <br />Bulk density <br />of fresh mortar: approx. 2.1 kg/dm3 <br />Layer thickness: up to approx. 60 mm <br />Storage: dry, 12 months in the original <br />unopened container, promptly use <br />opened container <br />Application/ <br />substrate temperature: +5 °C to +25 °C <br />Consumption: approx. 20 kg ASO-SEM <br />per m²/cm screed thickness <br />Packaging: 25-kg container <br />Cleaning: Clean tools and equipment with <br />water immediately after use <br />Classification: EN 13813 CT-C40-F6-A9 <br />Fire class: A1fl, in accordance with resolution <br />96/603/EC <br />Foot traffic after*): approx. 24 hours <br />Fully cured after*): approx. 7 days <br />Pot life*): approx. 45 minutes</p> <p>• High processing reliability <br />• Consistent screed quality <br />• Long working time <br />• Rapid-setting <br />• Walkable after 1 day with tiles and boards*) <br />• For interior and exterior areas <br />• Can be heated after 3 days in accordance with <br />accepted rules of the technology <br />• Dust reduced <br />Areas of use: <br />ASO-SEM is an optimised drying pre-blended dry mortar <br />for producing cement-based screeds that are ready to <br />receive tiles and boards quickly, and with a higher strength <br />than quick setting screed in composite construction, <br />floating fast setting screed on insulation or a separating <br />layer and heated screed, which is suitable for use as <br />a wearing surface or substrate for tiles, boards, textile <br />coverings, parquet or PVC. The general guidelines for <br />cement-based screeds according to DIN 18560 and <br />DIN 18353 apply for processing. The substrate must <br />correspond to the payloads associated with the loadbearing capacities that are in accordance with DIN <br />EN 1991-1-1. <br />In areas exposed to water with wear class A0, A, B0, C <br />per the ZDB data sheet [*1], or the water impact classes <br />W0-I to W3-1 in accordance with DIN 18534, screed</p> <p>*) The specifications apply for +23°C and 50 % relative humidity; higher <br />temperatures shorten, lower temperatures extend the time cited.</p> <p>1/3</p> <p>04/19</p> <p>Minimum nominal thickness per DIN 18560: <br />under tiles</p> <p>45 mm on insulation or separating <br />layer</p> <p>under parquet, carpet, linoleum <br />or PVC</p> <p>30 mm on insulation or separating <br />layer</p> <p>general</p> <p>10 mm bonded</p> <p>e.g. through heat or draughts. With a water addition of <br />1.5 litres to 25 kg ASO-SEM, an ambient and substrate <br />temperature of +23 °C, a relative humidity of 50 % and <br />a layer thickness of 5 cm, the screed is ready for laying <br />with tiles after one day. To check this, perform a moisture <br />measurement with the CM device.</p> <p>Application: <br />To mix, we recommend using the EstrichBoy screed mixer <br />from Brinkmann with 65 mm hose diameter or other <br />conventional screed mixers, e.g. PFT, the Putzmeister <br />Mixokret or similar. Observe the water addition and <br />avoid excess water! The pot life at +20 °C is approx. <br />45 minutes. Mixing, application, and processing must <br />be completed in immediate sequence. The dimensions <br />of surfaces must be such that the application can be <br />completed within this pot life. Higher temperatures shorten, <br />lower temperatures extend the application and hardening <br />times. With bonded screeds, first brush ASOCRET-HB-flex <br />into the prepared - e.g. abraded - concrete substrate. <br />Apply the screed to the wet slurry coat. The general <br />guidelines for cement-based screeds according to <br />DIN 18560 and DIN 18353 apply for processing.</p> <p>Important instructions: <br />• The technical data sheets of the aforementioned <br />products should be observed! <br />• If the selected mixing time is too short or mixing is not <br />sufficiently intense, this is not guaranteed to disperse all <br />constituents sufficiently. The screed will not be ready to <br />receive tiles and boards quickly, and it will no longer <br />exhibit a high strength! <br />• Perform a moisture measurement with the CM device to <br />assess whether it is ready to receive tiles and boards. <br />The following limit values should be complied with: <br />Maximum moisture content of the screed, determined with the <br />CM device <br />Top layer <br />Vapour barrier covering</p> <p>unheated</p> <p>1.8 %</p> <p>2.0 %</p> <p>Water vapour 1.8 % <br />inhibiting</p> <p>2.5 %</p> <p>Water vapour 2.0 % <br />permeable</p> <p>3.0 %</p> <p>Parquet</p> <p>1.8 %</p> <p>2.0 %</p> <p>Laminate floor</p> <p>1.8 %</p> <p>2.0 %</p> <p>Thick layer</p> <p>2.5 %</p> <p>2.5 %</p> <p>Thin-bed</p> <p>2.5 %</p> <p>2.5 %</p> <p>Textile covering</p> <p>Mixing recommendations for mixing and conveying <br />machines: <br />In conventional mixing and conveying machines with <br />a 220 l mixing vessel, e.g. the EstrichBoy from Brinkmann, <br />PFT, Putzmeister Mixokret, or similar, a total 250 kg of <br />ASO-SEM is mixed with 15 l of tap water. This equates to <br />a mixing vessel level of approx. 80 % - as recommended <br />by the machine manufacturers in general.</p> <p>heated</p> <p>Ceramic tiles or natural / <br />artificial stone at +23 °C, <br />50 % r.h.</p> <p>The CM measurement must be completed in accordance with the <br />current working instructions FBH-AD from the technical information <br />“Interface coordination with heated floor constructions”.</p> <p>Proceed as follows here: <br />First, half-fill the mixing drum with 125 kg ASO-SEM and <br />approx. 10 l water. Then fill with the remaining 125 kg <br />ASO-SEM and add 5 l water. The total mixing time is <br />approx. 2 min. Establish a consistency of damp earth to <br />stiff plastic through the water addition. <br />Protect the fresh screed from drying out too rapidly,</p> <p>• Low temperatures, high humidity and heavy layer <br />thicknesses delay hardening, drying and extend the time <br />until ready to receive tiles and boards. (See also BEB <br />data sheet “Building climate preconditions for drying <br />screeds”). Tests showed that the crystalline binding of <br />the mixing water is slower at low temperatures (+5 to</p> <p>2/3</p> <p>04/19</p> <p>• The current relevant regulations are to be observed! So, <br />for example: <br />DIN 18157 <br />DIN 18352 DIN 18531 <br />DIN 18534 <br />DIN 18535 DIN 18560 <br />DIN EN 13813 <br />DIN 1055 <br />The BEB data sheets, issued by the Bundesverband <br />Estrich und Belag e.V. [Federal association for screed <br />and covering] <br />The technical information “Interface coordination with <br />heated floor constructions” <br />The ZDB data sheets, issued by the Fachverband des <br />deutschen Fliesengewerbes [professional association of <br />the German tile trade]: <br /> [*1] “Bonded waterproof systems” <br /> [*3] “Movement joints in cladding and coverings <br />made of tiles and boards” <br /> [*5] “Ceramic tiles and boards, natural stone <br />and artificial stone on cement-based floor <br />constructions with insulating layers” <br /> [*6] “Ceramic tiles and boards, natural stone and <br />artificial stone on heated, cement-based floor <br />constructions”</p> <p>+10°C), meaning that the screed was only ready to <br />receive tiles and boards after 2 days! <br />• Water that is pressed out of the surface of the screed <br />indicates excessive water addition (more than 1.5 l <br />water/25 kg ASO-SEM)! <br />• ASO-SEM can crystalline bind approx. 6 % of its weight <br />to water. Water quantities that exceed this volume must <br />evaporate and therefore delay the readiness to receive <br />tiles and boards! <br />• With rising moisture from the substrate, effective <br />waterproofing is essential prior to laying the screed! <br />• The installation location needs to be ventilated. <br />However, draughts and direct solar radiation should <br />be avoided during application and the hardening <br />process. The indoor temperature and floor temperature <br />must be at least +5°C during application, and during <br />the following week! Air dehumidifiers may not be used <br />during the first 3 days! <br />• Do not add any other cement or binder! <br />• Border, field, building separation and movement joints <br />should be carried over to or installed at the designated <br />location; suitable means (e.g. edge strips) should be <br />used to detach them! Crack control joints should be cut <br />in up to a third of the introduced layer thickness! <br />• Do not add any additives and substances!</p> <p>Please observe valid safety data sheet! <br />GIS CODE: ZP1</p> <p>The rights of the buyer with regard to the quality of our materials are based on our terms and conditions of sale and delivery. Our technical advice team will be happy to advise you in the case <br />of requirements that exceed the scope of the application described here. In order to be binding, a legally binding written confirmation is required. The product description does not release the <br />user from a duty of care. Lay a test area in the event of uncertainty. This version becomes invalid in the event of a new version being issued. <br />3/3</p> <p>CJ/TET/TaB</p> <p>04/19</p>
