Report published by the Building Research Institute in November 2018.
Validation of Methodology for Determination of Shear Behaviour Characteristics of Thermal Insulation Materials in Accordance with EN 12090 for Thickness of Samples Higher than 50 mm and Determination of Reference Relation
Report Subject
Subject of report is solving of project classed to Program of development of testing for year 2018 - Validation of methodology for determination of shear behaviour characteristics of thermal insulation materials in accordance with ČSN EN 12090 for thickness of samples higher than 50 mm and determination of reference relation. Final version is after the settlements of suggestions and comments of opponents.
Project was solved on basis of contract No. 18/1.5/VUPS of 19th April 2018.
Tasks and Specifications of the Project
- Determination of shear strength and shear modulus in accordance with ČSN EN 12090 by double test specimen for samples with different thicknesses of test samples.
- Performance of tests with two most usual thermal insulation products used on ETICS – expanded polystyrene and mineral wool – with thicknesses of samples: 50 mm; 80 mm; 100 mm; 120 mm; 140 mm.
- This task was, during solving of project, changed by settlement to thicknesses (50; 100; 120; 160; and 200) mm, which better correspond with thicknesses of boards that are actually used for ETICS.
For verification of homogeneity of sample unit, the following will be tested:
- Determination of apparent density of whole boards and test specimens in accordance with ČSN EN 1602.
- Determination of compression behaviour in accordance with ČSN EN 826 for EPS samples.
- Determination of tensile strength perpendicular to faces in accordance with ČSN EN 1607 for mineral wool samples.
Apparent density will be determined for all test specimens and all boards used for sampling of each specimen.
Determination of compression behaviour and tensile strength perpendicular to faces will be performed on 3 test samples for each sample material and each thickness.
Totally, the following will be performed:
- 100 determinations of shear behaviour and shear modulus
- 15 determinations of compression behaviour
- 15 determinations of tensile strength perpendicular to faces
- 200 determinations of apparent density of specimens
- Approx. 20 determinations of apparent density for whole boards (related to sampling)
Result of project will be: Report “Validation of methodology for determination of shear behaviour characteristics of thermal insulation materials in accordance with ČSN EN 12090 for thickness of samples higher than 50 mm and determination of reference relation.”
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