Unit Weight of Concrete

for any submerged concrete use a unit weight of 150 pcf minus the unit weight of water, 62.4 pcf. So use 87.6 pcf. Convert this to KN/m³ and figure out how many m³ of concrete you have. By the way this is about sophomore level for civil engineering education, very rudimentary to determine the unit weight of submerged concrete. So I am guessing you are just starting out in college or maybe a high school physics class, and this is part of a homework assignment. Therefore, it is up to you to figure out why it is submerged if it is below the water table.

Hello GASI,

http://www.convert-me.com/en/convert/volume

This convertion chart/table will be most helpful. Put one measure in and all the other equivalent weight and or volume are filled as well.

Once you know what you want you can say for instance enter 1 m³ and all other volumes will be entered.

Good luck and happy holiday.......................

Nice Question.... Listen

When you have such a submerged case, water boyancy is to be considered in self weight and over-burden soil calculations. After the loss of self-weight due to water boyancy, you can go with 15 kN/Cu.m for concrete and 12 kN/Cu.m for normal soil [depending on geotech investigation report]. I can send you a sample calculation for a submerged raft case; send me an email at fareed_siddique@yahoo.com.

Fareed