BS EN 534:2006 pdf download

BS EN 534:2006 pdf download.Corrugated bitumen sheets- Product specification and test methods.
7.2.1.3 Results
Five graphs (one rot each sheet) giving deflection as a function of force shall be produced. The force at an elongation of 3,1 mm shall be read off these graphs. The uniform load for each sheet shall be calculated us$19:
uniform load = force I load area [NIm2)
The result is the arithmetic mean of the five corrugated bitumen sheets, expressed to the nearest 10 N/rn2.
7.2.2 Impact strength
7.2.2.1 Equipment
The equipment is shown in Figure 9 and comprises:
— strong horizontal bench with a minimum height of 700 mm:
— four supports made of a metal square tube profe MSH 601601 5 mm;
— foursupporlsmadeoiwood6of6omm;
— eight clamps;
— sphero-conical bag (ISO 7892) filled with sand having a total mass of 40 kg:
— release hook.
7.2.2.2 Procedur.
The corrugated bitumen sheet shall be laid on the construction and fixed by the four wooden supports, using ciarnps or screws without oompressmg the height of the sheet.
The sack shal be positioned to have a height of tall between the bottom of the sack and the crown of the corrugations, at mid-point between two supports and at the centre of the sheet, depending on the category.
The sack shall be released without any initial momentum,
The test is carried out on five different corrugated bitumen sheets.
7.2.2.3 Results
The sheet shall resist the impact of the bag. The test is deemed to have failed if the sack passes completely through the sheet.
For the test to be passed, all five corrugated bitumen sheet shall pass.
7.3.1.3 Results
The test shall be judged to have passed or tailed using visual assessment.
7.3.2 ProportIon of bitum.n
7.3.2.1 Equipment
The equipment necessary consists of a bitumen extractor apparatus (e.g. Kumagawa or Soxhiet) and a &ing
cabinet Methytene chloride. Tflchloroe1hyiene or Toluene are also required.
7.3.2.2 Procedure
The test pieces shall be puf into the drying cabinet at least for 48 h at 70 C. The test pieces are then weighed to the nearest 0.01 g, this being the mass before extraction.
The test p.eces shall then be placed into the hot extraction apparatus, and extraction shall continue unhi the solvent remains clear.
The test pieces shall then be removed and the solvent allowed to evaporate under a ventilated hood.
When the solvent has evaporated, the test pieces are put into the drying cabinet for at least for 12 h at 105 C. The test pieces are then weighed to the nearest 0,01 g. this being the mass after extraction.
The test is carried out on three df1erent samples.
7.3.2.3 Results
The bitumen content is calculated usrng:
content = [(mass before extraction — mass after extraction) / mass before extraction) x 100 (%J.
The test is passed when all three tested samples meet the requirement
7.3.3 Mass
7.3.3.1 Equipment
The equipment consists of a balance with a precision of ± lOg.
7.3.3.2 Procedure
The total mass of each corrugated bitumen sheet shall be divided by the length (7.1.1) and Width (7.1.2) of the sheet.
The test is carried out on five different corrugated bitumen sheets.
7.3.3.3 Results
The result shall be the arithmetic mean of all five tested conugated bitumen sheets, expressed to the nearest 0,02 kg/m2.
After, the test pieces shah be removed from the water and their surfaces wiped to remove any drops of water, The test pieces are then weighed to the nearest 0.01 g, this being the mass after absorption
The test is carried out on three samples.
7.3.5.3 Results
The water absorption is calculated using:
absorption ((mass after absorption — mass before absorpbon)/mass before absorption] x 100 (%I. The test is passed when all three tested samples meet the requirement.
7.4 Durability
7.4.1 Tearing strength after freezelthaw ageing
7.4.1.1 Procedure
First the frost resistance conditioning procedure (7.4.4) shall be performed on each test piece. Alter the last cycle, the test pieces shall be stored for 24 h at laboratory conditions and then the tearing strength test (7.2.3) shall be performed.
The test Is carried out on five samples.
7.4.1.2 Results
The result is the mean of the five measurements, expressed to the nearest Newton.
7.4,2 Water impermoablllty after fre.zelthaw ageing
7.4,2.1 Procedure
First the frost resistance conditioning procedure (7.4.4) shall be performed on the test plece After the last cycle, the test pieces shall be stored for at least 24 h at laboratory conditions and then the water impermeability test (7.3.1) shall be performed. After (48 * 2) tithe underside of the lest piece shal be examined to see if there is any water penetration.