57_TZI_ASO-SEB_Strengths and grading curves_4824_EN.pdf
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<h1>57_TZI_ASO-SEB_Strengths and grading curves_4824_EN.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>Additional technical information no. 57</p> <p>ASO®-SEB <br />Strengths and grading curves <br />ASO-SEB is an optimised drying, fast-hardening binder <br />to produce cement-based screeds with early readiness <br />to receive and high strength. It is suitable as a wearing <br />surface or substrate for tiles, boards, textile coverings, <br />parquet, or PVC. With ASO-SEB it is possible to produce <br />cement-based screeds with the minimum quality CT-C25-F4 <br />per DIN EN 13 813 by working in accordance with the <br />technical data sheet for Cement-based screeds. The <br />aggregate used has a significant influence on the water <br />demand, the binder requirement and the strength. The <br />following information is intended to provide an estimate <br />of the strengths that can be achieved with the aggregates <br />available on site.</p> <p>1/4</p> <p>The following diagrams show the typical grading curves <br />of aggregates commonly used for screed production. <br />These are aggregates rich with fine parts, which require a <br />greater quantity of water and binding agent in comparison <br />to the optimum grading curve between A8-B8 close to B8. <br />However, in accordance with investigations by the institute <br />for building material testing and flooring research (“IBF”), use <br />of such aggregates stands at almost 70 % nationwide. Such <br />aggregates are generally good to apply and smooth, but <br />they require a greater quantity of water and binding agent <br />in order to achieve similar strengths as with optimum grains. <br />Our investigations with the adjacent typical representatives <br />of aggregates rich with fine parts have shown that ASO-SEB <br />in conjunction with grading curves around C8 and above <br />can be used to produce good screeds if the formula is <br />correspondingly adjusted (binder and added water).</p> <p>ASO®-SEB <br />Strengths and grading curves</p> <p>Standard grading curves for aggregates up to 8 mm</p> <p>90,0 <br />80,0 <br />70,0 <br />60,0</p> <p>Screen throughput in %</p> <p>100,0</p> <p>C8</p> <p>B8 <br />Sand <br />customer</p> <p>50,0</p> <p>A8</p> <p>40,0 <br />30,0 <br />20,0 <br />10,0 <br />Screen mesh in mm</p> <p>0,0 <br />C8 <br />B8 <br />A8</p> <p>0,0 <br />0,0 <br />0,0</p> <p>0.125 mm <br />8,0 <br />5,0 <br />2,0</p> <p>0.25 mm <br />21,0 <br />11,0 <br />5,0</p> <p>0.5 mm <br />39,0 <br />26,0 <br />14,0</p> <p>1 mm <br />57,0 <br />42,0 <br />21,0</p> <p>2 mm <br />71,0 <br />57,0 <br />36,0</p> <p>4 mm <br />85,0 <br />74,0 <br />61,0</p> <p>8 mm <br />100,0 <br />100,0 <br />100,0</p> <p>Standard grading curves for aggregates up to 8 mm</p> <p>90,0 <br />80,0 <br />70,0 <br />60,0</p> <p>Screen throughput in %</p> <p>100,0</p> <p>C8</p> <p>B8 <br />Sand <br />customer</p> <p>50,0</p> <p>A8</p> <p>40,0 <br />30,0 <br />20,0 <br />10,0 <br />Screen mesh in mm</p> <p>0,0 <br />C8 <br />B8 <br />A8</p> <p>0,0 <br />0,0 <br />0,0</p> <p>0.125 mm <br />8,0 <br />5,0 <br />2,0</p> <p>0.25 mm <br />21,0 <br />11,0 <br />5,0</p> <p>0.5 mm <br />39,0 <br />26,0 <br />14,0</p> <p>2/4</p> <p>1 mm <br />57,0 <br />42,0 <br />21,0</p> <p>2 mm <br />71,0 <br />57,0 <br />36,0</p> <p>4 mm <br />85,0 <br />74,0 <br />61,0</p> <p>8 mm <br />100,0 <br />100,0 <br />100,0</p> <p>ASO®-SEB <br />Strengths and grading curves <br />90,0 <br />80,0 <br />70,0 <br />60,0 <br />50,0</p> <p>Screen throughput in %</p> <p>100,0</p> <p>Grading curve up to 8 mm, Weser gravel Bodenwerder <br />C8</p> <p>B8 <br />A8</p> <p>40,0 <br />30,0 <br />20,0 <br />10,0</p> <p>Screen mesh in mm</p> <p>0,0 <br />C8 <br />B8 <br />A8</p> <p>0,0 <br />0,0 <br />0,0</p> <p>0.125 mm <br />8,0 <br />5,0 <br />2,0</p> <p>Weser gravel, Bodenwerder 0 - 8 mm</p> <p>0,6</p> <p>6,1</p> <p>0.25 mm <br />21,0 <br />11,0 <br />5,0</p> <p>0.5 mm <br />39,0 <br />26,0 <br />14,0</p> <p>1 mm <br />57,0 <br />42,0 <br />21,0</p> <p>2 mm <br />71,0 <br />57,0 <br />36,0</p> <p>4 mm <br />85,0 <br />74,0 <br />61,0</p> <p>8 mm <br />100,0 <br />100,0 <br />100,0</p> <p>7,7</p> <p>30,4</p> <p>52,1</p> <p>63,5</p> <p>85,5</p> <p>98,6</p> <p>90,0 <br />80,0 <br />70,0 <br />60,0</p> <p>Screen throughput in %</p> <p>100,0</p> <p>Grading curve up to 8 mm, Weser gravel</p> <p>Page 1</p> <p>C8</p> <p>B8 <br />A8</p> <p>50,0 <br />=> increased <br />binder and water <br />requirement</p> <p>40,0 <br />30,0 <br />20,0 <br />10,0</p> <p>Screen mesh in mm</p> <p>0,0 <br />C8 <br />B8 <br />A8</p> <p>0,0 <br />0,0 <br />0,0</p> <p>0.125 mm <br />8,0 <br />5,0 <br />2,0</p> <p>0.25 mm <br />21,0 <br />11,0 <br />5,0</p> <p>0.5 mm <br />39,0 <br />26,0 <br />14,0</p> <p>1 mm <br />57,0 <br />42,0 <br />21,0</p> <p>2 mm <br />71,0 <br />57,0 <br />36,0</p> <p>4 mm <br />85,0 <br />74,0 <br />61,0</p> <p>8 mm <br />100,0 <br />100,0 <br />100,0</p> <p>Weser gravel, Rinteln, brand: Reese 0 - 8 mm</p> <p>0,3</p> <p>1,5</p> <p>8,2</p> <p>44,2</p> <p>64,2</p> <p>71,3</p> <p>81,2</p> <p>98,6</p> <p>Page 1 <br />3/4</p> <p>48/24 WKD/KK</p> <p>ASO®-SEB <br />Strengths and grading curves <br />The baseline strength values in accordance with prEN 13892--2 have been determined with the aggregates with <br />damp earth consistency. Under construction site conditions, the strength class is generally reduced by one class. <br />Aggregate 0‒8 mm</p> <p>Mix ratio</p> <p>Strength class *)</p> <p>Plön district</p> <p>1: 4</p> <p>after 24 h <br />after 48 h <br />after 7 d <br />after 28 d</p> <p>CT-C35-F5 <br />CT-C40-F5 <br />CT-C40-F6 <br />CT-C50-F7</p> <p>1: 5</p> <p>after 24 h <br />after 48 h <br />after 7 d <br />after 28 d</p> <p>CT-C16-F3 <br />CT-C25-F4 <br />CT-C25-F4 <br />CT-C35-F7</p> <p>1: 4</p> <p>after 24 h <br />after 48 h <br />after 7 d <br />after 28 d</p> <p>CT-C20-F4 <br />CT-C35-F6 <br />CT-C40-F7 <br />CT-C40-F7</p> <p>1: 5</p> <p>after 24 h <br />after 48 h <br />after 7 d <br />after 28 d</p> <p>CT-C7-F2 <br />CT-C20-F4 <br />CT-C25-F4 <br />CT-C30-F6</p> <p>1: 4</p> <p>after 24 h <br />after 48 h <br />after 7 d <br />after 28 d</p> <p>CT-C30-F5 <br />CT-C40-F5 <br />CT-C40-F7 <br />CT-C50-F7</p> <p>1: 5</p> <p>after 24 h <br />after 48 h <br />after 7 d <br />after 28 d</p> <p>CT-C7-F2 <br />CT-C20-F3 <br />CT-C20-F4 <br />CT-C30-F6</p> <p>Rhine sand, <br />Manheim district</p> <p>Weser gravel, <br />Bodewerder/Rinteln</p> <p>*) Information applies to +23°C and 50 % relative humidity <br />In the case of screeds that are required to satisfy a certain screed quality in accordance with DIN 18560 or <br />DIN EN 13813, a performance test/confirmation test is necessary. This must be performed before starting the work.</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 cases <br />that go beyond the scope of application described here. A legally binding written confirmation is required to make them binding. The product description does not release the user from their <br />duty of care. In the event of uncertainty, create a test area. The release of a new version shall render the existing version invalid. <br />4/4</p> <p>48/24 WKD/KK</p>
