### Astm Aggregate Crushing Value Bangladesh

Aggregate crushing = (W2 W1) 100 Value (per cent) Aggregate Crushing Mean Value =.Aggregate Crushing Value = (B A) X 100 where A = weight of oven-dried sample B = weight in 'g' of fraction passing through 2.36 mm IS sieve. 6.Video Aggregate Crushing Value Test.It is recommended that the crushing value of aggregate should be less than 30 . If it is than 30 then 10 finer aggregate is suggested to use. The aggregate whose crushing value is less than 30 can be used for cement concrete road. The aggregate whose crushing value is less than 40 can be used for wearing surface.Aggregate crushing value test of coarse aggregate BS 812-110 1990 3 . Aggregate impact value test of coarse aggregate BS 812-112 1990 4 . Compressive strength test of concrete ASTM C39 C39M 2.3. Preparation of concrete specimen A Typical mix proportion 1 2 4 (cement fine aggregate coarse aggregate) is adopted with a 60 water-cement ratio.