Hydrocarbon, any of a class of organic chemical compounds composed only of the elements carbon (C) and hydrogen (H). The carbon atoms join together to form the framework of the compound; the hydrogen atoms attach to them in many different configurations. Hydrocarbons are the principal constituents of petroleum and natural gas.
Use slab in a sentence. 1  a piece that is flat, broad, and fairly thick: a slab of concrete, a slab of bread.  any of the rough, outer pieces cut from a log, as in sawing it into lumber.
Essentially, a cement slab is a flat, solid pouring of cement that is allowed to dry and harden in place. The most common use for a cement slab is as the foundation for a home, and many contractors believe that a cement slab foundation is the most secure option out there for homeowners.