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.
Since 3500 calories make 1 pound, you need to burn 3500 calories in a week, in case you want to lose a pound. This means that your caloric intake should be 500 calories less than your daily caloric requirement. In case you plan to work out and diet on a daily basis, this is the right target for you.