BS EN 15815:2011 pdf free download Polymer modified bituminous thick coatings for waterproofing — Resistance to compression
2Normative references
The following referenced documents are indispensable for the application of this document. For datedreferences,only the edition cited applies. For undated references,the latest edition of the referenceddocument (including any amendments) applies.
EN 206-1,Concrete — Part 1 : Specification, performance, production and conformity
FprEN 15814:2011,Polymer modified bituminous thick coatings for waterproofing -Definitions andrequirements
ISO 554,Standard atmospheres for conditioning andor testing — Specifications
Terms and definitions
For the purposes of this document, the terms and definitions given in FprEN 15814:2011 apply.
4Principle
After coating the substrate and conditioning the test specimen is placed in a test rig. After then the surface ofthe coated substrate is stressed with a constant load till a stabilization of the reduction of thickness is reached.
5 Apparatus
5.1 Flat base with a diameter equal to or greater than 10 mm (accuracy of 10 um) to measure the thicknessof layers prior to loading.
5.2Test rig, capable of exerting a constant pressure on a surface over an extended period of time.5.3 Extensometer or vernier calliper (accuracy of 10 um), measuring marks, micrometer.
5.4Metal or a plastic frame or a screed template.
5.5 Concrete supportloading platens with an area greater or equal than 20 cm × 20 cm and with athickness greater or equal than 4 cm thick, minimum 28 days old, minimum quality C 20/25 in accordance withEN 206-1.The upper and lower surfaces of the supportplatens are ground so as to be flat and parallel toeach other.
6 Test specimens6.1General
Squared test specimen with a size of approximately 20 cm x 20 cm.
6.2Preparation
The supports and the components of the polymer modified bituminous thick coatings shall be conditioned priorto the preparation of the specimens in a normal climate of (23±2) °C and a relative humidity of (50±5) % inaccordance with ISO 554 for at least 24 h.
The polymer modified bituminous thick coating shall be prepared at room temperature as specified by themanufacturer of the product and applied to the ground surface of the concrete support over an area of20 cm x 20 cm, also at a room temperature.
The thickness of the wet layer shall be such that the thickness of the dry layer corresponds to that specified bythe manufacturer for each type of use after drying (at least 3 mm or 4 mm) within a tolerance of 10 %. A frameof the appropriate height or screed template,in which the layer is struck off, shall be used to obtain therequired thickness.
The specimens shall be left to dry in a normal climate of (23 ± 2)°C and a relative humidity of (50±5) % inaccordance with ISO 554 for 28 days prior to testing.
6.3 Dimensions of the test specimens
The thickness of the dry layer shall be measured using vernier callipers permitting a reading to 0,1 mm.12 readings shall be taken. The highest and lowest values shall be ignored and the mean value calculatedfrom the remaining 10 values.
6.4Conditioning of test specimens
The test specimens shall be stored for at least 28 days at a normal climate (23 ± 2)°C and a relative humidityof (50 ± 5) % prior to testing.
7 Procedure
7.1Test conditions
The test shall be carried out at (23 ± 2) °℃.
7.2Procedure
The thicknesses of the layer shall be determined at sixteen measuring points distributed evenly over thesurface of the specimen, but at a distance of not less than 2 cm from the edges of the specimen The meanthickness of the dry layer shall then be determined (S”).
A minimum of three specimens shall be tested in each test.Several specimens may be stacked and testedsimultaneously for convenience. The surtace of the coating shall be prevented from achering to the support ofthe specimen above it or to the loading platens by inserting a suitable separating layer (e.g. silicone-coatedpaper) between the specimens.
Specimens tested simultaneously shall be placed in a suitable test rig to prevent any lateral displacement ofthe specimens occurring during the test and to ensure an evenly distributed application of force over the entiresurface of the specimens.
Two gauge marks shall be made on the four sides of the specimen supports and loading platens at a distanceof one third of the side length from the edges to enable the mean change in the thickness of the layers of eachspecimen during the test to be determined.