Mixing
- Check the inside of the mixing drum and blades for any concrete/mortar sticking to it.
- Introduce the ingredients in to the mixing drum without hopper in the following sequence:
WATER (¼ Qty) → JELLY/METAL (½ Qty) → SAND (½ Qty) → CEMENT (Full Qty) → JELLY/METAL (Remaining ½ Qty) → SAND (Remaining ½ Qty) → WATER (Remaining ¼ Qty)
- In case of a mixer fitted with hopper, place the measured quantities of coarse aggregates first, then place the sand and cement into the hopper.
- Mix the ingredients for a minimum of 2 minutes.
- In case of inevitable hand-mixing, do it on an impervious platform with 10% extra cement.
- During hand mixing, mix the sand and cement uniformly and spread it over the coarse aggregate and thoroughly mix again until it attains uniform colour.
- Add water in small quantities and mix it until it becomes homogenous.