ASO-SEM_206543_Englisch.pdf
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<h1>ASO-SEM_206543_Englisch.pdf</h1> <p>Technical data sheet <br />ASO®-SEM <br />Accelerated screed mortar with high strength</p> <p>Material number</p> <p>Contents</p> <p>Unit of quantity</p> <p>Packaging</p> <p>Colour</p> <p>206543001</p> <p>25</p> <p>KG</p> <p>Bag</p> <p>Cement grey</p> <p>Areas of application <br />For producing rapid setting cement-based screeds <br />For producing bonded screeds, separating layer screeds or as floating screed on an insulating layer <br />Layer thicknesses of 10 to 80 mm depending on the construction method <br />Heated and unheated design <br />For interior and exterior use</p> <p>Product features <br />Cementitious screed mortar <br />CT-C40-F6-A9 after DIN EN 13813 <br />Rapid setting <br />Pot life of approx. 45 minutes <br />Can be tiled with ceramic tiles after approx. 24 hours <br />Foot traffic after approx. 14 hours <br />Very low emission - EMICODE® EC 1PLUS</p> <p>SCHOMBURG GmbH & Co. KG · Aquafinstr. 2–8 · D-32760 Detmold (Germany) · Tel. +49-5231-953-00 · Fax +49-5231- 953-333 · schomburg.com <br />1/5</p> <p>20/05/2025</p> <p>Technical data sheet <br />ASO®-SEM <br />Advantages <br />rapid construction progress <br />In particular can easily be removed and smoothened <br />Sealed screed surface</p> <p>Technical Data <br />Material properties <br />Pre-blended dry mortar <br />Powdered <br />< 4 mm <br />approx. 2.1 kg/dm³ <br />after 3 days <br />≥ 6 N/mm² <br />A1fl <br />approx. 40 N/mm² <br />Vapour permeable</p> <p>Base material <br />Consistency <br />Grain size max <br />Bulk density of fresh mortar <br />Heating, screed after <br />Flexural strength (28 days, DIN EN 13813) <br />Reaction to fire in accordance with Directive 96/603/EC <br />Compressive strength (28 days, DIN EN 13813) <br />Vapour diffusion behaviour</p> <p>Mixing <br />approx. 2 - 3 minutes <br />approx. 1.5 l</p> <p>Mixing time <br />Water addition</p> <p>Application <br />approx. 5 - 25 °C <br />approx. 45 minutes <br />approx. 20 kg/m² <br />Forced paddle mixer <br />Free fall mixer <br />approx. 14 hours <br />approx. 24 hours <br />approx. 5 - 25 °C <br />approx. 24 hours <br />approx. 7 days</p> <p>Substrate temperature <br />Pot life <br />Consumption pro m² and cm layer thickness <br />Mixing method, machines, tools <br />Foot traffic after <br />Ready for covering with tiles <br />Application temperature <br />Overcoat after <br />Hardening time / full resilience</p> <p>Material rate <br />Material consumption rate according to the area of application <br />Minimum nominal thickness in accordance with DIN 18560 or ZDB data sheet "Coverings on cement and calcium sulphate screeds": <br />under tiles</p> <p>45 mm on insulation or separating layer</p> <p>under parquet, carpet, linoleum or PVC</p> <p>30 mm on insulation or separating layer</p> <p>general</p> <p>10 mm bonded</p> <p>In living spaces with a surface load of ≤ 2.0 kN/m², the minimum nominal thickness can be reduced to ≥ 35 mm.</p> <p>Processing equipment <br />Machine application <br />ASO®-SEM can be mechanically applied. For precise information, see the additional Technical Information No. 43.</p> <p>SCHOMBURG GmbH & Co. KG · Aquafinstr. 2–8 · D-32760 Detmold (Germany) · Tel. +49-5231-953-00 · Fax +49-5231- 953-333 · schomburg.com <br />2/5</p> <p>20/05/2025</p> <p>Technical data sheet <br />ASO®-SEM <br />Suitable covering <br />Tiles <br />Boards <br />Textile covering <br />Parquet <br />PVC</p> <p>Preparing the substrate <br />Measures for substrate preparation <br />1. The substrate must correspond to the load-bearing capacities in accordance with DIN EN1991-1-1. <br />2. In areas with water impact class W0-I to W3-I in accordance with DIN 18534 and the ZDB data sheet [*1], screed produced with ASO®-SEM <br />pre-blended dry mortar is applicable for use if a suitable SCHOMBURG bonded waterproof system has been applied.</p> <p>Substrate moisture content</p> <p>Preparing the surface <br />With a water addition of 1.5 litres to 25 kg ASO-SEM, an ambient and substrate temperature of +23 °C, a relative humidity of 50% and a <br />layer thickness of 5 cm, the screed is ready for laying with tiles after one day.</p> <p>Application <br />Application <br />1. With bonded screeds, first brush ASOCRET-HB-FLEX into the prepared, e.g. abraded concrete substrate. <br />2. Apply the screed to the wet slurry coat. The relevant guidelines for cement-based screeds after DIN18560 and DIN 18353 apply for <br />processing. <br />3. The dimensions of surfaces must be such that the application can be completed within this pot life. <br />4. Higher temperatures shorten the pot life. Lower temperatures increase the application and hardening times. <br />5. Mixing, application, and processing must be completed in immediate sequence.</p> <p>SCHOMBURG GmbH & Co. KG · Aquafinstr. 2–8 · D-32760 Detmold (Germany) · Tel. +49-5231-953-00 · Fax +49-5231- 953-333 · schomburg.com <br />3/5</p> <p>20/05/2025</p> <p>Technical data sheet <br />ASO®-SEM <br />Mixing recommendations for mixing and conveying machines <br />1. In conventional mixing and conveying machines with a 220 l mixing vessel, e.g. the EstrichBoy from Brinkmann, PFT, Putzmeister Mixokret, or <br />similar, a total 250kg of ASO®-SEM is mixed with 15 l of tap water. This equates to a mixing vessel level of approx. 80% - as recommended by <br />the machine manufacturers in general. <br />2. Half-fill the mixing drum with 125 kg ASO®-SEM and approx. 10 l water. <br />3. Then top up the remaining 125 kg ASO®-SEM and add 5 l water. <br />4. The total mixing time is approx. 2 - 3 minutes. <br />5. Adjust the consistency to earth-moist to stiff-plastic by adding water. <br />6. Protect the fresh screed to prevent it drying out too rapidly, e.g. due to heat or draughts. <br />7. Tiles are ready for laying after one day if the following prerequisites are met: * water addition of 1.5 litres to 25 kg ASO®-SEM*, ambient and <br />substrate temperature of +23 °C*, relative humidity of 50% * layer thickness of 5 cm <br />8. A moisture measurement must be carried out using the CM method to check the moisture content.</p> <p>Cleaning tools <br />Rinse tools with water immediately after use.</p> <p>Storage conditions <br />Storage <br />Store in a cool and dry place. Min. 12 months in the original canister. Promptly use opened container.</p> <p>Disposal <br />Product residues can be disposed of in accordance with disposal code AVV 17 01 01.</p> <p>Notes <br />All values given in the TM apply at +23°C and 50% relative humidity. <br />Observe the technical data sheets of the products mentioned before starting work. <br />ASO®-SEM can crystalline bind approx. 6% of its weight to water. Water quantities that exceed this volume must evaporate and therefore <br />delay the readiness to receive tiles and boards! <br />If moisture rises from the substrate, effective waterproofing is essential prior to laying the screed! <br />The installation location must be ventilated. However, draughts and direct solar radiation should be avoided during application and the <br />hardening process. The indoor temperature and floor temperature must be at least +5°C during application, and during the following week! <br />Air dehumidifiers may not be used during the first 3 days! <br />A moisture measurement must be carried out using the CM method to assess whether it is ready to receive. <br />Do not add any other cement or binder! <br />Low temperatures, high humidity and heavy layer thicknesses delay hardening, drying and extend the time until ready to receive tiles. (Also <br />see the BEB data sheet “Building climate preconditions for drying screeds”). Tests showed that the crystalline binding of the water is slower at <br />low temperatures (+5 to +10°C), meaning that the screed was only ready to receive tiles after a longer period of time! <br />Water that is pressed out of the surface of the screed indicates excessive water addition (more than 1.5 l water/25 kg ASO®-SEM)! <br />If the selected mixing time is too short or mixing is not sufficiently intense, this is not guaranteed to disperse all constituents sufficiently. The <br />screed will not be ready to receive tiles and boards quickly, and it will no longer exhibit a high strength! <br />Border, field, building separation and movement joints should be carried over to or installed at the designated location; suitable means (e.g. <br />edge strips) should be used to detach them! Crack control joints should be cut in up to a third of the introduced layer thickness!</p> <p>Relevant regulations <br />Planning, inspection of substrates and building site circumstances, laying, grouting and subsequent <br />care of the work must be done in accordance with the relevant DIN standards and recognised rules of <br />technology (e.g. the ZDB Data sheets of the Zentralverband Deutsches Baugewerbe e.V.(German <br />construction Association) in the latest version. <br />Observe applicable safety data sheet! <br />GISCODE: ZP1</p> <p>SCHOMBURG GmbH & Co. KG · Aquafinstr. 2–8 · D-32760 Detmold (Germany) · Tel. +49-5231-953-00 · Fax +49-5231- 953-333 · schomburg.com <br />4/5</p> <p>20/05/2025</p> <p>Technical data sheet <br />ASO®-SEM <br />Explanations <br />Conformity / Declaration / Verification</p> <p>Impact classes and typical applications in accordance with DIN 18534-1</p> <p>Impact classes for container in accordance with DIN 18535</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 <br />in the case 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 <br />does not release the 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.</p> <p>SCHOMBURG GmbH & Co. KG · Aquafinstr. 2–8 · D-32760 Detmold (Germany) · Tel. +49-5231-953-00 · Fax +49-5231- 953-333 · schomburg.com <br />5/5</p> <p>20/05/2025</p>
