Z from: 6 June 2016

Transcription

1 Date: Reference: 06 June 2016 II /12 Approval number: Validity Z from: 6 June 2016 Applicant: BPA-GmbH Behringstraße Herrenberg-Gültstein, Germany to: 6 June 2021 Subject of approval: CEMflex VB - metal sheet for sealing construction joints in sealing concrete constructions for use in facilities for the storage, filling and handling of substances hazardous to water (SFH facilities) in accordance with German water protection provisions The subject of approval named above is herewith granted national technical approval (allgemeine bauaufsichtliche Zulassung). This national technical approval consists of eleven pages and seven annexes.

2 Page 2 of 11 6 June 2016 I GENERAL PROVISIONS 1 With the national technical approval, the fitness for use and the applicability of the subject of approval in accordance with the Building Codes of the federal states (Landesbauordnungen) have been verified. 2 If in the national technical approval requirements are made concerning the special expertise and experience of persons entrusted with the manufacture of construction products and types of construction in accordance with the provisions of the relevant federal state following Section 17, Sub-section 5 of the Model Building Code (Musterbauordnung), it shall be noted that this expertise and experience can also be proven by equivalent verifications from other Member States of the European Union. If necessary, this also applies to verifications presented within the framework of the Agreement on the European Economic Area (EEA) or other bilateral agreements. 3 The national technical approval does not replace the permits, approvals and certificates prescribed by law for carrying out building projects. 4 The national technical approval will be granted without prejudice to the rights of third parties, in particular private property rights. 5 Notwithstanding further provisions in the 'Special Provisions', manufacturers and distributors of the subject of approval shall make copies of the national technical approval (allgemeine bauaufsichtliche Zulassung) available to the user and point out that the national technical approval shall be available at the place of use. Upon request, copies of the national technical approval (allgemeine bauaufsichtliche Zulassung) shall be placed at the disposal of the authorities involved. 6 The national technical approval may be reproduced in full only. Partial publication requires the consent of Deutsches Institut für Bautechnik. Texts and drawings contained in advertising brochures may not be in contradiction to the national technical approval. In the event of a discrepancy between the German original of the national technical approval (allgemeine bauaufsichtliche Zulassung) and this authorised translation, the German version shall prevail. 7 The national technical approval is granted until revoked. The provisions of the national technical approval (allgemeine bauaufsichtliche Zulassung) can subsequently be supplemented and amended, in particular if this is required by new technical findings.

3 Page 3 of 11 6 June 2016 II SPECIAL PROVISIONS 1 Subject of approval and field of application (1) The "CEMflex VB" from BPA-GmbH (hereinafter referred to as the metal sheet) consists of a galvanised steel sheet with a mineral-based coating on both sides. (2) The metal sheet is used in facilities and components of facilities for the storage, filling and handling of specified liquids hazardous to water in accordance with Annex 1. (3) The metal sheet is a band-shaped product which is completely embedded in concrete, reinforced concrete and prestressed concrete components. The accessories CEMflex VB-Ώ stirrups and CEMflex clips can also be used. (4) Once incorporated into the construction, the coated metal sheet provides the sealing function. (5) The metal sheet may be used as an inside seal for construction joints with a maximum gap of 0.1 mm in concrete sealing constructions. (6) In the case of cracks bigger than 0.1 mm, the metal sheet may only be used in conjunction with an injection system holding national technical approval (allgemeine bauaufsichtliche Zulassung) for use in facilities for the storage, filling and handling of liquids hazardous to water (SFH facilities). (7) The metal sheet is used for sealing construction joints in cast-in-place concrete constructions and, in order to maintain its sealing properties, should be undamaged. (8) The metal sheet is used for sealing construction joints against liquids hazardous to water in sealing constructions made of uncoated, liquid-impermeable reinforced concrete with a national technical approval for use in SFH facilities and/or concrete in accordance with the provisions of the Construction Products List (Bauregelliste) A, Part 1, Item No (9) It should be installed at normal environmental, component and material temperatures (usually within a range of -5 C to + 45 C). (10) This national technical approval replaces the determination of product suitability in accordance with German water laws in accordance with Section 63 of the German Water Management Act (WHG/Wasserhaushaltsgesetz) of 31 July 2009 (Federal Legal Gazette/BGBl I p. 2585). (11) The national technical approval is granted without prejudice to testing and approval requirements resulting from other legal areas. 2 Provisions for the construction product 2.1 Properties and composition General The metal sheet shall correspond to the specifications and technical characteristics in the annexes of this national technical approval. Material characteristics, compositions, formulas, measurements and tolerances of the metal sheet and/or coating not specified in this approval shall correspond to the technical documentation and the information deposited with Deutsches Institut für Bautechnik, with the certification body and/or the external surveillance body.

4 Page 4 of 11 6 June Properties (1) With regard to its composition and processing, the steel sheet shall conform to steel sheet DC01 +ZE 25/25 A PC in accordance with DIN EN (2) The metal sheet coating consists of the components set out in Annex 2. It shall: be resistant to the liquids listed in Annex 1 and be adhesive and resistant to ageing. (3) Once incorporated into the construction, the metal sheet shall: be resistant and impermeable to the liquids listed in Annex 1 for "low" and "medium" stress levels (see definition of stress levels in Annex 6). prevent leakages of the liquids listed in Annex 1, under "low" and "medium" stress levels, comply as a minimum requirement with building material class E in accordance with DIN EN and be suitable for use in sealing concrete and reinforced concrete constructions in SFH facilities. (4) In addition, in the area in which it is installed, it shall guarantee that the sealing construction is impermeable to liquids up to a crack width of 0.1 mm maximum above the metal sheet Composition (1) The information on the metal sheet itself and the formula and composition of the coating for the manufacture of the metal sheet are deposited with Deutsches Institut für Bautechnik. Changes to the formula require prior approval from Deutsches Institut für Bautechnik. (2) More details on the characteristic material values of the metal sheet and coating can be found in Annex Manufacture, packaging, transport, storage and marking Manufacture (1) The metal sheet is manufactured by coating zinc-galvanised steel sheets with a mineral coating in an applicator machine and then drying it. Any changes require prior approval from Deutsches Institut für Bautechnik. (2) The metal sheet is coated at the Herrenberg factory of BPA-GmbH. Changes require the prior consent of DIBt Packaging, transport and storage The metal sheet: may be packed and delivered in transport containers. shall be packed and transported in such a way that the serviceability is not affected. In particular, the metal sheet shall be stored in accordance with the specifications of the manufacturer. The specified storage conditions shall be observed. shall be stored until installation in a protected area, on battens or other supports, and protected from dirt, damp and damage. In winter, it shall be stored in such a way that its material temperature at the time of installation is higher than -5 C. 1 DIN EN 10152: Electrolytically zinc coated cold rolled steel flat products for cold forming - Technical delivery conditions 2 DIN EN : Fire classification of construction products and building elements- Part 1:Classification using data from reaction to fire tests

5 Page 5 of 11 6 June Marking (1) The accompanying leaflet or delivery note for the metal sheet shall be marked in the manufacturing plant with the national conformity mark (Ü-Zeichen) in accordance with the Conformity Marking Ordinances (Übereinstimmungszeichen-Verordnungen) of the federal states. The conformity mark may only be applied if the requirements for attestation of conformity given in Section 2.3 are met. (2) In addition, the accompanying leaflet or delivery note shall be marked with the following information: full designation of the construction product: "CEMflex VB metal sheet" for use in SFH facilities in accordance with national technical approval No. Z " and manufacturer name and plant identification mark. 2.3 Attestation of conformity General (1) The attestation of conformity of the metal sheet with the provisions of this national technical approval shall be issued for the manufacturing plant specified in Section in the form of a certificate of compliance based on factory production control and regular external surveillance, including initial typetesting of the metal sheet, in accordance with the following provisions. (2) To issue the certificate of conformity and for external surveillance, including the associated product-testing to be carried out in the process, the manufacturer of the metal sheet shall use an appropriately recognised certification body and an appropriately recognised inspection body. (3) The certification body shall send a copy of the certificate of conformity, which it has issued, as well as a copy of the initial type-testing evaluation report to Deutsches Institut für Bautechnik Factory production control (1) A factory production control system shall be set up and implemented in the manufacturing plant specified in Section Factory production control is understood to be continuous surveillance of production by the manufacturer to ensure that the manufactured construction products satisfy the provisions of this national technical approval (allgemeine bauaufsichtliche Zulassung). (2) The manufacturer shall obtain proof of the identity of the starting materials of the coating from the respective manufacturing plants by means of a test certificate "type 2.2" in accordance with DIN EN and the specifications of the galvanised steel sheet by means of an inspection certificate "type 3.1" in accordance with DIN EN The requirements of Annex 2 shall be observed in the process. In addition, the completeness and correctness of the declarations of conformity, test certificates, inspection certificates and delivery notes supplied with the products shall also be checked as part of the incoming goods inspection. (3) The factory production control for the metal sheet shall at least include the measures listed in Annex 3. (4) The results of factory production control shall be recorded, compared with the requirements in Annex 2 and evaluated. The records shall at least include the following information: product description of the metal sheet sealing system, type of check or test, 3 DIN EN 10204: Metallic products Types of inspection documents

6 Page 6 of 11 6 June 2016 date of manufacture and testing of the metal sheet or the starting material, result of checks and tests as set out in Annex 3 and comparison with the requirements of Annex 2 and signature of the person responsible for factory production control. (5) The records shall be kept for at least five years and submitted to the inspection body used for external surveillance. They shall be submitted to Deutsches Institut für Bautechnik and the competent supreme building authority upon request. (6) If the test result is unsatisfactory, the party responsible for production control shall immediately take the necessary measures to remedy the problem. Metal sheets that do not meet the requirements shall be handled in such a manner that they cannot be mixed up with compliant products. After the deficiencies have been remedied, the relevant test shall be repeated immediately where this is technically possible and necessary to demonstrate that the deficiencies have been remedied External surveillance (1) The factory production control system in the manufacturing plant specified in Section shall be inspected regularly, i.e. at least twice a year, by means of external surveillance. (2) Initial type-testing of the metal sheet shall be carried out within the scope of external surveillance. Sampling and testing shall be the responsibility of the recognised inspection body. (3) The following properties and characteristics shall be determined through individual tests during initial type-testing of the metal sheet: - general condition, - measurements as well as comparison with tolerances, - all key values as shown in Annex 2, - phase composition of the coating and changes to coating mass and coating thickness after 144 h storage in test liquid of media group 1a and media group 4. (4) These tests may be omitted if the usability tests carried out for the national technical approval were conducted on samples taken from ongoing production by an independent third-party representative. (5) External surveillance shall be carried out in accordance with Annex 4 and compared to the properties and characteristic values set out in Annex 2 and Annex 4. (6) The results of certification and external surveillance shall be kept for at least five years. The certification body or inspection body shall present them to Deutsches Institut für Bautechnik and the competent supreme building authority upon request. 3 Provisions for design (1) Verifiable calculations and construction drawings (e.g. joint plans) shall be prepared by a specialised planner taking into consideration water law provisions and expected chemical and mechanical stresses. (2) The possibility of filling cracks after installation using a suitable injection system holding national technical approval shall be taken into consideration during the planning process. (3) The applicant, hereinafter referred to as the approval holder, shall prepare installation and assembly instructions on proper metal sheet installation.

7 Page 7 of 11 6 June 2016 (4) In addition to the DAfStb guideline on concrete construction when dealing with substances hazardous to water (Betonbau beim Umgang mit wassergefährdenden Stoffen 4 ), the following design and dimensioning provisions shall be respected: Construction joints should not be placed in areas of potential contamination. Any unavoidable joints should, where possible, be positioned above the fill level. Where this is not possible, they should preferably be formed at the highest level of the sealed surface. The metal sheet shall withstand any structural movements without damage. Joints shall be made sufficiently stable and impermeable to any relevant media, taking into account mechanical, thermal and meteorological influences. The bond between the concrete and the metal sheet shall have sufficient strength and load-bearing capacity that it is able to absorb any forces that may be imparted to it by or through the metal sheet. The planning and design specifications set out in Annex 5 shall be taken into consideration for establishing the installation depth when planning the metal sheet seal. The metal sheet shall be embedded into the concrete to a depth of half its height on each side. The uncoated concrete, in accordance with Construction Products List (Bauregelliste) A Part 1 Item 15.32, of the sealing construction shall have limited characteristic liquid penetration depths (see Annex 5). A minimum distance to the edge of the building component of 5 cm or a minimum of three times the diameter of the largest aggregate size shall be maintained. Additional instructions and information from the technical approval holder shall be taken into consideration. 4 Provisions for the execution 4.1 General (1) The installation of joint sealing systems may only be carried out by companies that are specialised in these activities within the meaning of Section 3 of the Ordinance on Facilities for Dealing with Substances Hazardous to Water (Verordnung über Anlagen zum Umgang mit wassergefährdenden Stoffen) of 31 March 2010 (Federal Legal Gazette/BGBI. I p. 377), unless, in accordance with the provisions that apply for the facility location, the activities are exempt from the obligation to be carried out by a specialist. In addition, these specialist companies (including their specialised staff) shall be trained and authorised to carry out the aforementioned activities by the approval holder. (2) The joint sealing system shall be installed in accordance with the provisions of this national technical approval and in conformity with the drawings and the installation and execution instructions of the approval holder. 4.2 Installation (1) The specifications drawn up by the approval holder and/or specialist planner (e.g. method, material, position and installation) shall be complied with when installing the metal sheet. (2) The metal sheet shall not move or overturn during the casting of the concrete. (3) Damaged metal sheets or sheets with damaged coating may not be installed. Caution shall be exercised during stripping the formwork and similar activities in order to avoid damage. 4 DAfStb guideline on concrete construction when dealing with substances hazardous to water (Betonbau beim Umgang mit wassergefährdenden Stoffen / BUmwS): , DAfStb, Berlin

8 Page 8 of 11 6 June 2016 (4) The metal sheet shall be positioned in such a way that the concrete in the area of the joint has the same degree of compaction as is standard for the entire concrete area. (5) The metal sheet shall be installed in sealing concrete constructions under consideration of the specifications and diagrams in Annex 5. The metal sheet shall be embedded into the concrete to a depth of half its height. (6) A minimum distance to the edge of the building component of 5 cm or a minimum of three times the diameter of the largest aggregate size shall be maintained. (7) The metal sheet is fixed to the reinforcing bars using the accompanying Ώ-stirrups. (8) The metal sheets are connected to construction joints: - using clamps with an elastomer interlayer (e.g. NBR). The clamping strips on each side shall ensure a clamping area of at least 150 mm. Clamping strips of size 10 mm x 30 mm and three M10 screws shall be used. The elastomer interlayer shall be 2 mm thick (see Annex 6, fig. 1). - by overlapping. The overlap area shall be half the thickness of the building component but at least 300 mm. In order to ensure effective bonding across the entire area, a distance between the overlapping sheet of twice the minimum concrete coverage (c min ) as set out in Clause of the DAfStb guideline "BUmwS" (concrete construction when dealing with substances hazardous to water), Part 1, but at least 50 mm, shall be observed (see Annex 6, fig. 2). An injection hose system suitable for the particular use in SFH facilities is also required, - by clamping the metal sheets directly onto one another using CEMflex clips. The overlap area shall be at least 200 mm (see Annex 6, fig. 3). 4.3 Inspection of the execution (1) The following inspections shall be carried out before, during and after installation of the joint sealing system: - verifying that the correct metal sheet is used in accordance with this approval. - general condition of the metal sheet (e.g. free from damage) before embedding in concrete. For this, the installed metal sheet shall be visually inspected along its entire length. - installation position (respecting the requirements of Section 4.2) and comparison with the joint plan and the installation specifications detailed in the design documents before concreting. - checking that the metal sheets cannot shift or float upwards during concreting. - before concreting, the proper execution of the metal sheet joints shall be checked. (2) Approval for concreting shall be documented in writing and filed with the construction records, taking into consideration the aforementioned inspections. 4.4 Attestation of conformity for the construction technique (1) The attestation of conformity for the construction technique (installed joint sealing system) with the provisions of this national technical approval (allgemeine bauaufsichtliche Zulassung) shall be provided by the installing company in accordance with Section 4.1 (1) by means of a declaration of conformity and the following additional inspections. (2) Verifying if the correct metal sheet was used for proper execution of the joint sealing system. (3) Inspection of execution in accordance with Section 4.3 (4) The results of these inspections shall be recorded and evaluated. The record shall include at least the following data:

9 Page 9 of 11 6 June 2016 Joint sealing system: Approval number: Approval holder: Executed on: Executed by: Note: "metal sheet CEMflex VB" Z BPA GmbH, Behringstraße 12, D Herrenberg- Gültstein Date Full company name Repair only with injection system for use in SFH facilities holding national technical approval (allgemeine bauaufsichtliche Zulassung). Type of inspections or checks (see Section 4.3) Date of inspections and checks Results of inspections and checks and comparison with requirements Signature of the person responsible for inspecting execution (5) The records and declaration of conformity from the installing company shall be handed over to the plant operator for inclusion in the construction records, and presented, upon request, to Deutsches Institut für Bautechnik, the authorised supreme building authority and the expert in accordance with water law. (6) If the test results are unsatisfactory, the installing company shall immediately take the necessary measures to resolve the defect. After elimination of the defect, the inspections or checks shall be repeated immediately - so far as is technically practicable and necessary to prove that the defect has been eliminated. 5 Provisions for use and maintenance 5.1 General (1) Reference is made to the obligation of operators of a facility for the storage, filling and handling of substances hazardous to water to constantly monitor the tightness and functionality of the surface sealing system laid down in Section 1 Para. 2 of the Ordinance on Facilities for Dealing with Substances Hazardous to Water (Verordnung über Anlagen zum Umgang mit wassergefährdenden Stoffen) of 31 March 2010 (Federal Legal Gazette/BGBl. I p. 377). The criteria listed in Section 5.2 in connection with Section 5.3 apply in this regard. (2) The inspection intervals in the operating instructions for the given SFH facility shall be organised by the operator based on the stress duration permissible in accordance with this national technical approval. The results of regular inspections as well as all incidents that deviate from the operating instructions shall be documented. These records shall be presented to the expert in accordance with water law upon request. (3) Drip losses and the accumulations of even small amounts of liquid should be removed from the sealing concrete construction immediately when dealing with substances hazardous to water. Liquids hazardous to water that leak out should be bound immediately with appropriate means. The polluted bonding agent shall be removed and duly recycled or disposed of without causing any damage. Appropriate materials and/or devices are specified in the operating instructions and are constantly ready in sufficient quantity. Reference is made to the applicable legal provisions (e.g. the German Closed Substance Cycle and Waste Management Act (Kreislaufwirtschafts- und Abfallgesetz)) for the disposal and handling of waste materials. (4) When storing the liquids it shall be ensured that, in any liquid that leaked due to an incident is quickly and orderly removed, e.g. for stress level "medium" within 72 hours. (5) The operator of a SFH facility shall be obligated to hire for repairing the joint sealing system only those companies that are specialised in these activities within the meaning of Section 3 of the Ordinance on Facilities for Dealing with Substances Hazardous to Water'

10 Page 10 of 11 6 June 2016 (Verordnung über Anlagen zum Umgang mit wassergefährdenden Stoffen) of 31 March 2010 (Federal Legal Gazette/BGBI. I p. 377), unless, in accordance with the provisions that apply for the facility location, the activities are exempt from the obligation to be carried out by a specialised company. (6) The operator of a SFH facility shall arrange, on the basis of the provisions that apply for the facility location, for tests to be carried out by an expert in accordance with water law (commissioning test, recurring test), see Section 1 (2), Sentence 3 of the Ordinance on Facilities for Dealing with Substances Hazardous to Water (Verordnung über Anlagen zum Umgang mit wassergefährdenden Stoffen) of 31 March 2010 (Federal Legal Gazette/BGBI. I p. 377). The tests shall be executed in accordance with Sections and (7) As far as the relevant ordinances of the federal states do not prescribe tests by an expert in accordance with water law, the operator of a SFH facility shall hire a competent technician for the recurring test of tightness and functionality of the joint sealing system. 5.2 Inspection by officially appointed experts Start-up inspection (1) The expert as specified by water law shall be kept continually informed of the progress of work. This individual shall be given the possibility to participate in the inspections of the metal sheet before and after the installation and to evaluate inspection results. In particular, the expert shall have the opportunity to check the situation of the metal sheet installation before concreting. (2) The final inspection of the condition of the construction joints shall be carried out through a visual inspection of the surface of all joints of the given sealing construction. (3) Construction joint areas shall be inspected for cracks. Cracks wider than 0.1 mm shall be sealed with an injection system holding national technical approval (allgemeine bauaufsichtliche Zulassung) for use in SFH facilities. The provisions of the national technical approval for the injection system used shall apply here. (4) The expert in accordance with water law shall verify the control intervals (in accordance with Section 5.1) provided for in the operating instructions by the operator of the relevant SFH facility Recurring inspections (1) The operator of a facility shall have the joint area inspected with respect to its protective effect one year after the start-up inspection or after any defects were rectified by an authorised expert in accordance with water law (see Section 1 (2), Sentence 3 of the Ordinance on Facilities for Dealing with Substances Hazardous to Water (Verordnung über Anlagen zum Umgang mit wassergefährdenden Stoffen) of 31 March 2010 (Federal Legal Gazette/BGBI. I p. 377), and then - if no defects were found - repeat this test every five years in accordance with Section 1 (2) Para. 2, Note 2 of said Ordinance. (2) The condition of the sealing construction shall be inspected via a visual check of all construction joint areas of the sealing construction in question. Cracks wider than 0.1 mm shall be sealed with an injection system holding national technical approval (allgemeine bauaufsichtliche Zulassung) for use in SFH facilities. The provisions of the national technical approval for the injection system used shall apply here. (3) On the basis of the documentation concerning regular inspections and all incidents deviating from operating instructions, checks shall be carried out as to whether - the inspection intervals were observed, - no incident occurred deviating from operating instructions and

11 Page 11 of 11 6 June stress under the liquids hazardous to water occurred for no longer than the permitted stress levels given in Annex 2 of this national technical approval (allgemeine bauaufsichtliche Zulassung). (4) Additional inspections shall be necessary if doubts arise about the tightness of the joint sealing system. For that purpose, samples (drilling cores) shall be taken from the section affected, if need be. The taking of samples from the ground underneath the joint sealing system can be dispensed with if it can be proven that the joint sealing system was not completely penetrated by liquids hazardous to water. 5.3 Elimination of defects (1) Any defects determined during tests shall be eliminated immediately. For repairing damage, a company in accordance with Section 5.1 (5) shall be contracted which is authorised to carry out concrete repair in SFH facilities using injection systems. (2) Cracks wider than 0.1 mm shall be sealed with an injection system holding national technical approval for use in SFH facilities. The provisions of the national technical approval for the injection system used shall apply here. 5.4 Inspection document A report on the results of inspections shall be prepared for the certificates to be created under occupational safety and water provisions. 6 Repair measures for facilities in operation (1) For repair work, a company in accordance with Section 5.1 (5) shall be contracted which is authorised to carry out concrete repair in SFH facilities using injection systems. (2) Cracks wider than 0.1 mm shall be sealed with an injection system holding national technical approval for use in SFH facilities. The provisions of the national technical approval for the injection system used shall apply here. (3) Any repair shall be planned and carried out by a specialist on the basis of a structural condition assessment and a repair concept based upon it, taking into account this national technical approval and the national technical approval for the specific injection system for use in SFH facilities. The interactions between the sealing construction, the joint sealing system and the injection system shall be taken into account. (4) The repair of the sealing construction shall be carried out on the basis of the provisions of the specific national technical approval (allgemeine bauaufsichtliche Zulassung) for the injection system used. (5) Before the repair, it shall be confirmed that the damage to the sealing construction identified in the structural condition assessment and the causes thereof have been rectified. (6) In the case of major repair measures, the operator shall commission an inspection of the proper condition of the facility by an authorised specialist before the facility is put back into operation. Dipl.-Ing. Gerhard Breitschaft President Beglaubigt

12 of 6 June 2016 List of liquids hazardous to water to which the joint sealing system is impermeable and chemically resistant: - In facilities for the storage, filling and handling of substances hazardous to water (SFH facilities) for stress levels "low" and "medium" in accordance with TRwS in fuel stations in accordance with TRwS 781 to TRwS Group no. Liquids 1 Petrol as per DIN EN 228 with a maximum (bio) ethanol content of 5 vol% as per DIN EN a Petrol as per DIN EN 228 with the addition of bio fuel components as per Directive 2009/28/EC up to a total content of max. 20 vol% 2 Aviation fuels fuel oils EL as per DIN unused combustion engine oils 3 unused vehicle gear oils mixtures of saturated and aromatic hydrocarbons with an aromatic content of 20 wt% and a flash point > 60 C 3b Diesel fuels as per DIN EN 590 with the addition of biodiesel as per DIN EN up to a total content of max. 20 vol% 4 all hydrocarbons and mixes containing benzene with max. 5 vol% benzene, except motor fuels 4b Crude oils 4c used combustion engine oils and used vehicle gear oils with a flash point > 60 C In so far as no other information concerning the liquids listed is given, the substances concerned are in each case technically pure substances or mixes of technically pure substances of the relevant group, but not mixed with water in so far as this is not specifically identified. 1 2 Work sheet DWA-A 786: , Technical Rules for substances hazardous to water (Technische Regeln wassergefährdender Stoffe / TRwS), Execution of sealing surfaces (Ausführung von Dichtflächen) Work sheets ATV-DVWK-A 781: , DWA-A 782: , DWA-A 783: and DWA-A 784: , Technical rules for substances hazardous to water (Technische Regeln wassergefährdender Stoffe / TRwS), Filling stations for motor vehicles, rail vehicles, watercraft and aircraft (Tankstellen für Kraft-, Schienen-, Wasser- und Luftfahrzeuge) CEMflex VB metal sheet for sealing construction joints in concrete sealing constructions for use in SFH facilities Lists of liquids Annex 1

13 of 6 June 2016 Technical values and product characteristics Test subject Property Unit Basis Control values galvanised steel sheet Coating Coated metal sheet Material - DIN EN DC01 + ZE 25/25-A PC Width mm ± 10 % Sheet thickness mm ± 10 % Components (Latex-based binding agent, cement and specific additives) Mixing ratio binder: cement : additives: water - Confirm requirements of the approval holder with test certificate "type 2.2". - Requirements of the approval holder Loss on ignition wt% DIN EN 345-1, procedure A, temperature 550 C Thickness of the coated metal sheet Thickness of coating each side Adhesive tensile strength of coating product to sheet mm mm MPa Suitable measurement method Suitable measurement method based on DIN EN ISO 4624 as per the deposited data as per the deposited data 11.0 ±10 % 1.40 ± % / +20 % 0.50 ± 20 % Appearance - Visual inspection Free from bubbles and cracks CEMflex VB metal sheet for sealing construction joints in concrete sealing constructions for use in SFH facilities Technical data and product characteristics Annex 2

14 of 6 June 2016 Table 1: Factory production control Subject Property Basis Documentation Frequency Control values galvanised steel sheet Coating Metal sheet Material Sheet thickness Width Completeness and correctness of components Mixing ratio for the components Density of fresh mix Loss on ignition Thickness of coating each side Adhesive tensile strength of coating to sheet Appearance Inspection certificate "type 3.1" as per DIN EN or record Test certificate "type 2.2" Requirements of the approval holder DIN EN ISO DIN EN 345-1, procedure A, temperature 550 C Suitable method for measuring thickness based on DIN EN ISO 4624 Visual inspection Record of results of incoming goods inspection Record for each delivery for each batch Annex 2 Record for each batch -- Record 1 per week for each batch or every 1000 m for each batch or every 1000 m Annex 2 CEMflex VB metal sheet for sealing construction joints in sealing concrete constructions for use in SFH facilities Factory production control Annex 3

15 of 6 June 2016 Table 1: External surveillance Subject Property Basis Documentation Frequency Control values galvanised steel sheet Coating Metal sheet Material Sheet thickness Width Completeness and correctness of starting materials Mixing ratio for the components Inspection certificate "type 3.1" as per DIN EN or record Test certificate "type 2.2" as per DIN EN Requirements of the approval holder Inspection on factory production control Twice a year Annex 2 Density of fresh mix DIN EN ISO Loss on ignition Thickness of coating each side Adhesive tensile strength of coating to sheet Appearance Phase composition of the coating Changes to mass and layer thickness of the coating after 144 h storage in MG 4 and MG 1a 2 DIN EN 345-1, procedure A, temperature 550 C Suitable method for measuring thickness based on DIN EN ISO 4624 Visual inspection X-ray diffraction As per test plan 1 Record Annex 2 No deviation from deposited data Changes in mass: +10 % / -5 % Changes in layer thickness: +20 % / -10 % 28 d after removal 1 2 Test programme for coated metal sheets in SFH facilities dated 22/05/2015 Determining changes in mass and layer thickness 28 d after removal from test liquid CEMflex VB metal sheet for sealing construction joints in concrete sealing constructions for use in SFH facilities External surveillance Annex 4

16 of 6 June 2016 Information for planning and dimensioning The characteristic value of the penetration depth e tk in the uncoated concrete shall be smaller than/equal to the installation position of the metal sheet x f. The characteristic value of the penetration depth depends on the type and time of stress, see Annex 6. x f e tk e tk = 1.35 e tm e tm = average penetration depth b Height of metal sheet: h = 150 mm h/2 h/2 x f b 3 x f 2 3 b Fig. 1: metal sheet embedding depth CEMflex VB metal sheet for sealing construction joints in concrete sealing constructions for use in SFH facilities Information for planning and dimensioning Annex 5

17 of 6 June 2016 Authorised overlaps 2 mm elastomer interlayer (e.g. NBR) x x f f 150 mm Fig. 1: Joint of the metal sheets using clamps with elastomer interlayer, as per DAfStb guideline "BUmwS" ('concrete construction when dealing with substances hazardous to water') Distance between metal sheets when overlapping: twice the minimum concrete coverage c min as per Section of the DAfStb guideline "BUmwS" ('concrete construction when dealing with substances hazardous to water'), part one, but minimum 50 mm. x f Half of the construction component thickness, but minimum 300 mm Plans shall include an additional injection hose system holding national technical approval (allgemeine bauaufsichtliche Zulassung) for use in SFH facilities. Fig. 2: Joint of the metal sheets by overlapping, as per DAfStb guideline "BUmwS" ('concrete construction when dealing with substances hazardous to water') Clamping using CEMflex clips x f 200 mm Fig. 3: Joint of the metal sheets by overlapping and clamping CEMflex VB metal sheet for sealing construction joints in concrete sealing constructions for use in SFH facilities Design of overlaps Annex 6

18 of 6 June 2016 For information: Stress levels for stress under substances hazardous to water The stress to the joint sealing system when storing, filling and handling substances hazardous to water is determined depending on the operating conditions in each individual case. It is dependent, amongst other things, on the determined stress period, the frequency of the filling operations and the infrastructure with regard to statutory requirements for the packaging of substances hazardous to water. Within the determined stress period, the leaked liquids shall be identified and removed from the sealing construction. Handling and filling processes will be constantly visually monitored for drip loss and leakage so that measures to eliminate them can be taken immediately. Table 1: Storage of substances hazardous to water Abbreviation Stress level Stress period L 1 low Stress period up to 8 hours 1 L 2 medium Stress period up to 72 hours 1 L 3 high Stress period up to 3 months 1, 2 1) In this period of stress period, the stress is to be identified and removed, the sealant is to be cleaned and (if applicable, after specialist assessment) brought into operation again. 2 In case of stress period of over 3 months, permanent stress shall be assumed and the determinations given in this approval shall not be applied. Table 2: Filling of substances hazardous to water Abbreviation Stress level Frequency A 1 low Filling up to 4 x per annum. A 2 medium Filling up to 200 x per annum. A 3 high Filling without restriction of frequency Table 3: Handling of substances hazardous to water Abbreviation Stress level Measure U 1 low Handling of substances in suitable packing 1 U 2 medium Handling of substances in unsuitable packing 1 1 In accordance with the provisions regarding the statutory hazardous substances requirements for packing of substances hazardous to water. CEMflex VB metal sheet for sealing construction joints in concrete sealing constructions for use in SFH facilities Stress levels Annex 7