it is based on quality of construction and our design strength it is based on quality of construction and our design strength it is based on quality of construction and our design strength
W/c .4/5
Total volume multuplied by the figure .30 . Mart ratio calculate and sum of ratio Example 1:4=5 . 1/5x90Cft
water cement ratoi teel me water cement ratio formula
Slump test
6 divided by 3 = two (2x3=6)Therefore increase ration by 2 ie 2 to 6 is the new ratio.
1:5 (cement:sand) is the best ratio
Water/cement ratio law states that the strength of concrete is only dependent upon water/cement ratio provided the mix is workable.Strength of concrete primarily depends upon the strength of cement paste.Similarly, the strength of the paste increases with cement content and decreases with air and water content.
Why does concrete mix with low water cement ratio resulted in hardened concrete having higher strength than those with high water cement ratio?
Cement send of ratio 1:5 for brick work
If you are talking about shrinkage, then quite a bit. To make concrete, cement and water react together. There is a specific amount of water required to hydrate the concrete. Any water extra must leave the concrete and while it makes the concrete more workable, hurts the concrete is several ways. The volume of the concrete will change by whatever excess water you have added. To get workability, it's always best to use a water reducing admixture.
Formula to calculate the ratio
Approximately 5bags of cement are in 1 cu.m concrete ratio 1:3:6 with 20mm aggregate, water-cement ratio 0.5.