TESTS ON aggregate
Stripping value
Code: This test is done as per IS: 6241:1971.
Procedure:
- i) Take 200 grams of dry and clean aggregates passing 20mm and retained on 12.5mm sieves and heat up to 1500C.
- ii) Take five percent by weight of bitumen binder and heat up to 1600C.
- iii) Mix the aggregates and the binder till they are completely coated and transfer the mixture in to a 500ml beaker and allow to cool at room temperature for about 2 hours.
- iv) Add distilled water to immerse the coated aggregates.
- v) Cover the beaker and keep in a water bath maintained at 400C taking care that the level of water in the water bath is at least half the height of the beaker.
- vi) After 24hours take the beaker out, cool at room temperature and estimate the Extent of stripping visually while the specimen is still under the water.
Uses:
To determine Stripping value of aggregate.