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BS EN 1429:2013 Bitumen and bituminous binders. Determination of residue on sieving of bituminous emulsions, and determination of storage stability by sieving, 2013
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Principle
- 5 Reagents and materials [Go to Page]
- 5.1 Solution Sa
- 5.2 Solution Sc
- 5.3 Efficient rinsing agent
- 5.4 Ethanol
- 96 % minimum or methylated spirit 99 %.
- 6 Apparatus
- 7 Sampling
- 8 Procedure for the determination of residue on sieving [Go to Page]
- 8.1 General
- 8.2 Residue on the 0,500 mm sieve
- 8.3 Particles between 0,500 mm and 0,160 mm
- 9 Procedure for the determination of the storage stability by sieving after n days storage period [Go to Page]
- 9.1 Carefully rinse a conical flask (6.8) with solution Sa (5.1) or Sc (5.2) as appropriate. For very viscous emulsions which are slow to pass through the aperture of the 0,500 mm sieve, use a 500 ml conical flask (6.9).
- 9.2 Weigh enough of the bituminous emulsion prepared according to Clause 7 (approximately 250 g) into the conical flask. Record the mass mE,n days to the nearest 1 g (6.4).
- 9.3 Store the closed flask in a dark room at ambient temperature for n days.
- Following storage, measure the residue on sieving as described below.
- 9.4 Wash the 0,500 mm sieve (6.1) with rinsing agent (5.3) and then with ethanol or methylated spirit (5.4).
- 9.5 Place the sieve on the sieve pan (6.3) and dry in the oven (6.12) for not less than 1 h.
- 9.6 After drying, allow the sieve and the sieve pan to cool in the desiccator (6.13).
- 9.7 Weigh the sieve and the sieve pan together. Record the mass, m5, to the nearest 0,01 g (6.5).
- 9.8 Wet the sieve cloth with solution Sa (5.1) or Sc (5.2) as appropriate.
- 9.9 Drain it thoroughly and place it on a funnel which is mounted over the bottle (6.10).
- 9.10 Pour the emulsion through the wetted sieve. For very viscous emulsions which have been stored in a 500 ml flask, first dilute the emulsion by adding approximately 200 ml of the Sa or Sc solution.
- 9.11 Rinse the conical flask with solution Sa or Sc over the sieve until the washings run clear. Drain the flask thoroughly. If a significant amount of emulsion stays adhering to the walls of the flask, report “Broken emulsion” in the test report unde...
- 9.12 Wash the residue on the sieve with solution Sa or Sc until the washings run clear. Finally wash with water. Drain the sieve thoroughly.
- 9.13 Place the sieve on the sieve pan. Dry the sieve and the sieve pan in the oven (6.12) for at least 2 h and then cool in the desiccator (6.13) for approximately 30 min.
- 9.14 Weigh the sieve with its sieve pan and residue and record the mass, m6, to the nearest 0,01 g (6.5).
- 10 Calculation [Go to Page]
- 10.1 For residue on the 0,500 mm sieve
- 10.2 For particles between 0,500 mm and 0,160 mm
- 10.3 For residue on the 0,500 mm sieve after n days storage
- 11 Expression of results
- 12 Precision [Go to Page]
- 12.1 Repeatability
- 12.2 Reproducibility
- 13 Test report [Go to Page]
