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.
There are 3,500 calories in a pound so use that number to determine how many pounds you can lose. For example, if you normally burn 2,000 calories per day and you consume 1,500 calories then you will lose 1 pound per week since you created a 500 calorie deficit per day (500 x 7 days = 3,500).