Tests on Emulsion

Storage Stability after 24 hours (%)

Code: This test is done as per IS: 8887-2004

Procedure:

• i) Bring the bitumen emulsion to room temperature (20 to 30°C). Place a 500 ml representative sample in each of the two glass cylinders. Stopper the cylinders and allow them to stand undisturbed, at laboratory air temperature (20 to 30°C), for 24 h.
• ii) After standing for this period, remove approximately 55 ml from the top of the emulsion by means of the pipette or siphon without disturbing the rest. Thoroughly mix each portion.
• i) Weigh 50±0.1 g of each sample into separately weighed 600 or 1 000 ml glass beakers, each beaker having previously been weighed with the glass rod. Adjust the temperature of the oven to 163 + 2.8°C.
• iv) Then place the beakers containing the rods and sample in the oven for 2 h. At the end of this period remove each beaker and thoroughly stir the residue. Replace in the oven for 1 h, then remove the beakers from the oven, allow cooling to room temperature, and weigh, with the rods.
• iv) After removal of the sample, siphon off the next 390 ml (approximate) from each of the cylinders. Thoroughly mix the emulsion remaining in the cylinders and weigh 50 ±0.1 g into separate weighed 600 or 1000 ml glass beakers. Determine the bituminous residue of these samples in accordance with step 2.

Uses:

Used to Determination of Storage Stability of Bitumen emulsion.