EN 15037-3:2009

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.SROQLODBetonfertigteile - Balkendecken mit Zwischenbauteilen - Teil 3: Keramische ZwischenbauteileProduits préfabriqués en béton - Systèmes de planchers à poutrelles et entrevous - Partie 3: Entrevous en terre cultePrecast concrete products - Beam-and-block floor systems - Part 3: Clay blocks91.100.30Beton in betonski izdelkiConcrete and concrete products91.060.30Stropi. Tla. StopniceCeilings. Floors. StairsICS:Ta slovenski standard je istoveten z:EN 15037-3:2009SIST EN 15037-3:2009en,de01-julij-2009SIST EN 15037-3:2009SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 15037-3April 2009ICS 91.100.30 English VersionPrecast concrete products - Beam-and-block floor systems -Part 3: Clay blocksProduits préfabriqués en béton - Systèmes de planchers àpoutrelles et entrevous - Partie 3: Entrevous en terre culteBetonfertigteile - Balkendecken mit Zwischenbauteilen -Teil 3: Keramische ZwischenbauteileThis European Standard was approved by CEN on 25 January 2009.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre:
Avenue Marnix 17,
B-1000 Brussels© 2009 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 15037-3:2009: ESIST EN 15037-3:2009

Sampling for initial type testing and for independent testing of consignments . 29A.1 General . 29A.2 Sampling procedure . 29SIST EN 15037-3:2009

Inspection schemes for clay blocks . 31Annex ZA (informative)
Clauses of this European Standard addressing the provisions of the EU Construction Products Directive . 33ZA.1 Scope and relevant characteristics . 33ZA.2 Procedure for attestation of conformity of clay blocks for beam-and-block floor systems . 35ZA.2.1 System of attestation of conformity . 35ZA.2.2 EC Certificate and Declaration of conformity . 35ZA.3 CE marking and labelling. 36ZA.3.1 General . 36ZA.3.2 Simplified label . 37ZA.3.3 Information to be provided with the CE marking . 38Bibliography . 40 SIST EN 15037-3:2009

Figure 1 — Examples of semi-resisting clay blocks 3.3 resisting block block with the same functions as semi-resisting blocks but whose top flange can, under certain conditions, play a role as compression slab in the final floor system (designated RR)
Figure 2 — Example of resisting clay blocks 3.4 nib shape given to the block so that it will bear on the beam 3.5 longitudinal block block where the axis of the perforations are parallel to the beam SIST EN 15037-3:2009

Key 1 web 6 depth of the nib 2 overall length 7 overall width 3 flange (top part of the block) 8 overall height 4 height to nib 9 direction of the beam 5 width of the nib
Figure 3 — Example of a longitudinal block NOTE The flange in the top part of the block may be partially opened. 3.6 transverse block block where the axis of the perforations are perpendicular to the beam NOTE An example of a transverse block is given in Figure 4. SIST EN 15037-3:2009

Key 1 web 6 depth of the nib 2 overall length 7 overall width 3 flange (top part of the block) 8 overall height 4 height to nib 9 direction of the beam 5 width of the nib
Figure 4 — Example of a transverse block NOTE The flange may be partially opened. 3.7 open block non-resisting or semi-resisting block without top flange NOTE An example of an open block is given in Figure 5.
Figure 5 — Example of open block 3.8 gross dry density mass per unit gross volume after drying to constant mass 3.9 complementary block block of shorter length, width or height designed to aid the construction of floors having dimensions which are not multiples of the dimensions of blocks SIST EN 15037-3:2009

2,5 % of the declared value. NOTE Lower range may be declared by the manufacturer. 4.3.1.3 Minimum dimensions 4.3.1.3.1 General The dimensions shall be verified according to 5.1.1. The effective width (minimum bearing width for support on precast beams) of clay block nib shall be greater than:  minimum dimensions Class N1: 15 mm;  minimum dimensions Class N2: 20 mm;  minimum dimensions Class N3: 25 mm. 4.3.1.3.2 Top flange of resisting blocks The top flange of clay resisting blocks shall be at least:  top flange Class TF1: 30 mm thick (see Figure 6);  top flange Class TF2: 50 mm thick. The minimum thickness of the horizontal web, the shell of the top flange and the percentage and dimensions of voids in the top flange shall be declared by the manufacturer. When relevant to the uses also the actual thickness of the top flange shall be declared. SIST EN 15037-3:2009

Figure 6 — Minimum thickness of top flange of resisting blocks (hatched surface) NOTE The clay blocks may have grooves on both sides and on the top and bottom shells. 4.3.1.4 Nominal configuration of blocks The nominal values for the shape shown on Figure 7 shall be declared.
Key 1 width (l) 5 width of the nib 2 height (h) 6 depth of the nib 3 length (L) 7 horizontal part of the slope 4 height to nib
Figure 7 — Nominal dimensions declared for blocks When relevant to the uses for which the blocks are put on the market the following shall also be declared:  shape and pattern of perforation;  thickness of webs and shells;  volume of formed voids as percentage of the length × width × height;  area of the largest of any formed voids in cm2;  minimum width (sb) and minimum depth (st) of recesses (see Figures 8 and 9). SIST EN 15037-3:2009

a) section b) block with single recess Figure 8 — Example of clay block with single recess
a) section b) block with double recess Figure 9 — Example of clay block with double recesses 4.3.2 Surface characteristics Blocks shall not have cracks or spalling which may be detrimental to their mechanical performance. For test method see 5.1.7. 4.3.3 Mechanical resistance 4.3.3.1 General 4.3.3 of EN 13369:2004 shall apply. The manufacturer shall declare which class of mechanical resistance the blocks fulfil. 4.3.3.2 Class R1 The following properties shall be verified by direct load testing made on samples taken following proper statistical criteria (see Annex A and EN 1990:2002): SIST EN 15037-3:2009

EN ISO 140-3. It shall be expressed in the third octave bands 100 Hz to 3 150 Hz and as a single number quantity with spectrum adaptation terms according to EN ISO 717-1. The impact sound insulation of a product shall be estimated by calculation or measured according to
EN ISO 140-6. It shall be expressed in the third octave bands 100 Hz to 3 150 Hz and as a single number quantity with spectrum adaptation terms according to EN ISO 717-2. When sound insulation values are estimated by calculation, details of the calculation models and the input data shall be provided. Complementary information may be found in the relevant standards. Estimates by calculation may be performed according to EN 12354-1:2000, Annex B and EN 12354-2:2000, Annex B. Values may be given in the extended frequency range 50 Hz to 5 000 Hz according to EN ISO 717-1 and EN ISO 717-2. NOTE Values in third octave bands are suitable for calculation of sound insulation in the works according to the detailed model of EN 12354. Acoustic properties depend on the finished floor system (type of blocks, applied elements in upper and/or lower face of the floor, etc.). For design purposes, and in the absence of measurement results, the method given in Annex L of EN 15037-1:2008 may be used (airborne and impact sound insulation). SIST EN 15037-3:2009

Figure 10 — Measurement of width b) Length Take the two measurements as shown in Figure 11. SIST EN 15037-3:2009

Figure 11 — Measurement of length c) Height Take the two measurements as shown in Figure 12.
Figure 12 — Measurement of height 5.1.1.3 Interpretation of results Calculate the length, width and height for the sample as the mean of the values of the individual specimens. All dimensions shall comply with the requirements of 4.3.1, and the values declared by the manufacturer, within the tolerances given in 4.3.1.2.1. NOTE Measurements shown in Figures 10 to 12 may refer to different nominal values. 5.1.1.4 Test report The length, width and height of each specimen shall be noted. 5.1.2 Width and depth of the nib Place the block on a level horizontal surface (the flatness shall be controlled). Take two measurements: one in the middle of each side. Repeat the operation to measure depth. For blocks with asymmetric nib, take two measurements on each side. SIST EN 15037-3:2009

Figure 13 — Measurement of thickness of the top flange 5.1.4 Percentage of voids of the top flange of resisting blocks The measurements shall be done according to EN 772-3 or EN 772-9. 5.1.5 Flatness of the underside When required, the general flatness of the underside is to be tested, preferably using a gauging rod, this being placed at successive pairs of points at the ends of the underside. It shall be measured to an accuracy of 0,5 mm. The deviation is given by the difference between the maximum and the minimum distances between the gauging rod and the underside. 5.1.6 Straightness of the nib edges When required, the straightness of each of the nib edges is to be checked, preferably using a gauging rod, this being placed at the ends of the nibs, first in the horizontal plane and then in the vertical plane. It shall be measured to an accuracy of 0.5 mm. The deviation is given by the difference between the maximum and the minimum distances between the gauging rod and the edge. 5.1.7 Surface characteristics The surface appearance of blocks shall be inspected visually. Defects likely to be detrimental to their mechanical performance shall be rejected. 5.2 Mechanical strength 5.2.1 Resistance to concentrated loads 5.2.1.1 General The test method given in the next paragraph shall apply to determine the characteristic resistance to concentrated loads of clay blocks. SIST EN 15037-3:2009

Key 1 fixed support 2 load P 3 adjustable support Figure 14 — Concentrated load test on clay blocks 5.2.1.4 Interpretation of test results The characteristic resistance to concentrated loads, PRk, shall be verified in accordance with the procedure described in Table 3. The declared value for PRk may be greater than the minimum value of characteristic failure load defined in Table 1 for the type of block concerned. SIST EN 15037-3:2009

Key 1 central line load 2 hinged support Figure 15 — Test arrangement for determining the failure load 5.2.2.3 Evaluation Single values shall be given to the nearest 0,05 kN. 5.2.2.4 Test report The test report shall contain the following information:  manufacturing plant;  type of blocks (LNR, NR, SR or RR);  date of manufacture or some other code;  laboratory and person in charge of testing;  date and place of testing;  test method;  failure load value of the samples;  a statement that the tests were carried out in compliance with this European Standard. SIST EN 15037-3:2009

Figure 16 — Longitudinal compression test on clay resisting or semi-resisting blocks Before the test, the upper and lower faces of the test piece shall be made parallel. They shall have no unevenness in excess of 0,5 mm. To ensure a uniform load distribution over the block, either a spreader plate (cardboard, PTFE etc.) or corrective action (mortar or sulphur capping, grinding etc.) should be used. The load, Q, is applied as shown in Figure 17 and is increased gradually up to failure of the specimen. The loading rate shall not be greater than 2 MPa/s. SIST EN 15037-3:2009

Key 1 rigid plate for uniform spreading of load 3 test piece 2 spreader plate, if necessary 4 test machine bed Figure 17 — Longitudinal compression test - method for applying load The failure load, QR, shall be recorded. The results from the resistance to concentrated loads tests may be used to determine the longitudinal compressive strength after correlation by means of laboratory tests (at least 35). 5.2.3.3 Interpretation of test results The characteristic longitudinal compressive strength, fbk, shall be verified in accordance with the procedure described in Table 4. The longitudinal compressive strength of the samples is determined by dividing the failure load, QR, by the nominal loaded surface area, and is expressed to the nearest 0,1 MPa. The loaded surface area of the specimen, S, is the hatched area in Figure 16. Table 4 — Conformity criteria for determining the longitudinal compression strength of clay blocks Production Number of blocks "n" criterion 1 criterion 2 bnf (MPa) fbi (MPa) At start 3 ≥ fbk + 4 ≥ fbk − 4 during production ≥ 15 ≥ fbk + 1,48 σ ≥ fbk − 4 where n is the number of samples. The strength of a sample is the average of the results obtained with the specimens constituting the sample; bnf is the average strength of all samples over the moving period considered, in MPa; fbi is the lowest strength of all samples, in MPa; SIST EN 15037-3:2009

Key 1 specimen 3 square steel plate 2 supports 4 movable bearer (to prevent torsion) Figure 18 — Principle of transverse testing The specimen shall be installed centrally on the support bearers and the steel plate
(100 mm × 100 mm × 25 mm thick) located centrally on the upper surface of the specimen. A load of 3,5 KN shall be applied at a rate of 7 kN/min and held for 30 s ± 5 s. 5.2.4.4 Test result Breakage of any of the 3 test specimens shall be regarded as a failure. 6 Evaluation of conformity 6.1 General The manufacturer shall demonstrate compliance for his product with the requirements of this European Standard and with the declared values for the product properties by carrying out both: a) initial type testing of the product (see 6.2); b) factory production control (see 6.3). Alternative methods of test to the reference methods specified in this European Standard may be adopted except for the initial type tests and in case of dispute, provided that these alternative methods satisfy the following: c) a relationship can be shown to exist between the results from the reference test and those from the alternative test and d)
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