Precast concrete is a construction product produced by casting concrete in a reusable mold or form which is then cured in a controlled environment, transported to the construction site and lifted into place. In contrast, standard concrete is poured into site-specific forms and cured on site.
What They Are. Semi-monthly payments are payments made twice per month on the 1st and 15th rather than once per month on your regular due date. The balance due remains unchanged; if your mortgage is $1,200 per month, you would make a payment of $600 twice each month.
1 Thus there are 24 semi-monthly pay periods in a year. 2  Semi-monthly periods are also often called bi-monthly periods, a more confusing term because it could also mean âevery other monthâ. 3  Weekly: Workers in some industries are paid weekly. 4  A weekly pay period usually accounts for 52 paychecks a year.