Mix proportion for 1m3 of concrete, mortar

Material	Unit	Concrete mark 250	Mortar mark 100
Cement	Kg	330	300
Golden sand	Litre	475	1110
Macadam 1x2	Litre	880
Fresh water	Litre	185	260

Notes on preservationCements shall be stored in a dry, water-proof place, over 20 cm above the ground and 20 cm away from any walls.

Cements shall not be put directly on the floor. Do not pile up more than 10 bags.First production, first out

Notes on usage

Use clean and non-salt infected sand and gravel.Dry mix cement with sand and gravel before mixing with water.

Protect from rain and sunlight for the first 10 hours after the wet concrete is being poured, and then keep the concrete moist over the next20 days while curing.