Concrete and cement are not interchangeable terms. Cement is the dry powdered substance that is mixed with sand, gravel and water to create concrete. The gravel component in concrete is sometimes referred to as crushed rock or aggregate. Mixing sand, gravel, water and cement in the right proportion is essential to producing durable, high-quality concrete.
Know the numbers. In order to lose one pound, you will need to burn 3,500 more calories than you consume in a day. How many calories you burn in a given day just by existing will depend on your current weight and level of physical activity. You can calculate this by multiplying your weight by ten.
How many calories do you need to burn to lose one pound? According to the Mayo Clinic, 1 pound of fat is equal to about 3,500 calories, meaning that an individual must burn 3,500 more calories than he consumes in order to lose this amount of weight. When losing weight, water and lean tissue mass can be lost in addition to fat.