Cement is a fine, gray powder that is used as a construction binding material. When mixed with water, cement reacts chemically and becomes hard and strong. Cement is categorized as either hydraulic or nonhydraulic, depending on how it mixes with water.Continue Reading
Nonhydraulic cement does not harden underwater or in damp conditions. Certain chemicals are added to make hydraulic cement, which sets underwater or in wet conditions.
Cement is made by combining silicon, aluminum, iron, calcium and other chemicals in a controlled mixture. Other materials added to the mixture include chalk, clay, slate and limestone. When combined, the ingredients form a hard substance that is ground into cement.
Cement is also known as Portland cement. It was invented by Englishman Joseph Aspdin in 1824 and was named for its similarity to limestone from the Isle of Portland. The word cement originated in the time of the Romans, whose term opus caementicium referred to masonry similar to modern concrete.
Portland cement is the main ingredient in concrete, which is made by adding rock, sand and water to form a paste that hardens. Concrete is made stronger by adding more cement and is weakened by adding more water. Concrete is used in most buildings, bridges and tunnels due to its strength. Moisture and pests do not weaken it, and it can withstand most natural disasters, including earthquakes and hurricanes.Learn more about Building Materials
A concrete mixer is a device used in construction that combines cement with water and aggregate to create concrete. These mixers range in size from large commercial trucks to small, portable concrete mixers. The components of a concrete mixer consist of a motor, a rotating drum and a chute.Full Answer >
The wet process of cement manufacturing involves adding water to finely crushed raw material, such as limestone, clay or iron ore, in a proportion of 35 to 50 percent water to 50 to 65 percent raw material to make a slurry that is fed into a cement kiln, whereas no water is added in the dry process. Instead, the raw material is fed into the kiln in its dry state.Full Answer >
Hardie board, or plank, siding is an exterior building material made from sand, cement and cellulose fibers. It needs little maintenance and is durable and sturdy. The siding was developed by the James Hardie company in Australia, but it is available worldwide.Full Answer >
CPVC cement can be used on PVC pipe, although it is recommended to use the correct pipe cement for the pipe material. PVC-specific primer with PVC cement is a better option for PVC piping.Full Answer >