For example, Portland cement concrete holds water, but other types of concrete called "Pervious concrete" allow water to pass, making storm drains unnecessary. For example, a conventional redymix concrete bag of 80 lbs may be listed as having a yield of approximately 0.60 cu ft or a 25 kg bag may have a yield of ~0.01 cu m. With a few simple mathematical transformations we can use this number to arrive at the in place density of the material and complete our calculation of the total mass and number of bags of concrete we would need.

Measure unitMetric (kg/m3)Imperial (lbs/ft3), Length x

2300 kg/m3 I'm Mike Day and I own Day's Concrete Floors, Inc. If you want your building project to stand the test of time, then a good concrete mixture and estimating the amount of concrete you need are solid first steps. Hi, I am Mike Day, owner of Dayâs Concrete Floors, Inc. in Maine,  where I've been working with concrete for 40 years now, and this website is where I can share with you all the knowledge and wisdom I've gained from installing all kinds of decorative concrete, concrete floors, concrete overlays, stained concrete and also fixing cracked or spalled concrete. Conventional concrete has density between 1900 kg/m3 and 2400 kg/m3 and can endure, on day 28 of its pouring, and has a compressive strength between 2500 psi and 7000 psi (pounds per square inch) ~ 200-492 kg/cm2. Here is the table showing the different types of concrete as well as the density or weight per cubic meter (m3). 60lbs 5% How much does a 30' x 30' concrete slab cost, my actual prices from a real concrete contractor.

A concrete driveway costs between \$6 - \$8 dollars per square foot for plain gray concrete and \$10 - \$20 dollars per square foot for decorative concrete. How many cubic meters is a 20kg bag of sand? How to make diy concrete countertops for your kitchen, bathroom, or pool area. 2500 kg/m3, Concrete bag weight The weight of concrete depends on the density of the materials and the amount of air it contains.

of bags required for 01 cum of concrete = 1/0.167 = 6 bags. ready mix concrete) in the calculations it does. 40lbs Concrete bag density lbs/ft3