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.
Slab is a 100% water-based acrylic latex caulk for concrete crack repair. Unlike other concrete repair products, it's not sticky and difficult to apply, nor does it dry hard and crack. Slab combines excellent adhesion and superior elasticity to result in a concrete crack repair that lasts.