10 concrete mix thumb rules you should know

10 concrete mix thumb rules you should know

[ Blog Credits: cegyan ]

 

ADDING 4 LITRES OF WATER TO 1 CUBIC METER OF FRESHLY MIXED CONCRETE WILL:

  • Increase slump about 25 mm.
  • Decrease compressive strength about 1.5 to 2 N/mm2.
  • Increase shrinkage potential about 10%.

IF TEMPERATURE OF FRESHLY MIXED CONCRETE IS INCREASED BY 1 DEGREE CELSIUS:

  • About 4 litres of water per cubic meter maintains equal slump.
  • Air content decreases about 1%.
  • Compressive strength decreases about 1.0 to 1.5 N/mm2.

IF THE AIR CONTENT OF FRESHLY MIXED CONCRETE:

  • Increases 1% then compressive strength decreases about 0.5%.
  • Decreases 1% then yield will decrease about 0.03 cubic meter per 1 cubic meter.
  • Decreases 1% then slump decreases about 12.5mm.
  • Decreases 1% then durability decreases about 10%.

 

[ Blog Credits: cegyan ]

Post A Comment