TÜV Rheinland LGA Bautechnik GmbH
Emblem TÜV Rheinland® (Technical Controll Rheinland, LGA Building technics Ltd) LGA Exact. Correct.
Certified to DIN EN ISO 9001, DIN EN ISO 14001 y OHSAS 18001
REPORT
Nº BBV 1212003
Date: 07.09.2012
Applicant:
BetonSeal GmbH & Co.KG Marienburger Strasse 7 50968 Colonia
Requested the:
04.05.2012 by Mr. Heidrich
Type of test:
Trials of the primer for concrete surfaces Controll#Innerseal to its chemical resistance for biogas plants, as a complemment to the design principles for silage and liquid manure containers made of reinforced concret accordind the requirements described in DIN 11622-2º( Date: October 1999)”
Sample extraction:
by the applicant
Sample delivery:
07.05.2012
Test period:
07.05. to 21.08.2012
Test responsible:
Holger Wöhler
Phone Nº:
+49 911 655-5291
Fax Nº:
+49 911 655-5334
E-Mail:
holger.woehler#de.tuv.com
This report is made up of 3 pages and attachment(s). The result of the tests outlined in this report refer exclusively to the aformentioned sample or material. The result of this report may be reproduced only in its entirety. . A partial reproduction is valid only wit the consent of the TÜV Rheinland LGA Bautechnik GmbH. To acces your request we filed the most relevant data. Data protection is guaranted.
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TÜV Rheinland LGA Bautechnik Tillystrasse 2 90431 Nürnberg Following Phone numbers Manager Reg.of commerce Datos bancarios WEB: www.tuv.com
Page 2 of 3
REPORT
Emblem TÜV Rheinland® LGA Exact. Correct.
Nº BBV 1212003
Date: 07.09.2012
1. Task With date 10.04.2012 the TÜV Rheinland LGA Bautechnik GmbH was commisioned by the company BetonSeal GmbH & Co KG to retested the primer for concrete surfaces Controll#Innerseal to its chemical resistance for biogas plants, with regards to an aqueoous solution of fermentacion acids with a 3 % of lactic acid, a 1,5 % acetic acid and a 0,5 % butyric acid on the one hand and on the other a solution with 7 % of (NH4)2HPO4 and a pH value between 8,5 and 9,0 as a complemment to the design principles for silage and liquid manure containers made of reinforced concret accordind the requirements described in DIN 11622-2º( Date: October 1999)” 2. Method of examination The verification test to the chemical resistence were conducted on two cylindrical samples of concrete sawing(diameter 150 mm). The serrated cores were send by the applicant to the TÜV Rheinland LGA Bautechnik GmbH – Road construction. The primer was conduct in seven spray applications (consumption: 800 g/ m2). According to the applicant instructions the concrete used corresponds to a concret resistence class C 35/45 and exhibition class XA3. According the applicant the cement used is type CEM-I. For the testing of presure were applied and were fixed on each of the cores sawn a cilinder with an inside diametrer of 10 cm. and they were filled with the liquids test. Liquids were subjected to a pressure of 1 bar with compressed air after. Test liquids acted under this pressure the impregnated surface for 3 months. Test were carried out at a room temperature( 20º to 23º C). Then conducted an analysis of the treated surfaces. The characteristics investigated at the end of the storage period are detailled in the following table: State of the serrated cores before treatment Brilliance Shining Colour Grey Stickiness Good Hardness Shore D 69 The following chemical solutions were used for the pressure test: Group type/ Testing liquid Observations After 1 hour Mix of fermentacion acids on the basis of Surface clear up ( whitish ) 3% lactic acid, 1,5% acetic acid and 0,5 % But no change butyric acid Shore D 67 Solution with 7% of (NH4)2HPO4 with a Surface becomes dark ( dark grey ) pH value between 8,5 and 9,0 But no change Shore D 67
Page 2 of 3
REPORT
Emblem TÜV Rheinland® LGA Exact. Correct.
Nº BBV 1212003
Date: 07.09.2012
3. Results and evaluation Impregation system to proven to be effective against the liquid of the test for a period of 3 months.
TÜV Rheinland LGA Bautechnik GmbH Road construction
Signature ( illegible ) Holger Wöhler Qualified engineer Director of testing
Round seal Outside: TÜV Rheinland LGA Bautechnik GmbH Institut of materials testing Inside: Emblem - TÜV Rheinland LGA
Title: Report the Innerseal resistance to acids, according TÜV Rheinland testings