The density of cement can be anywhere from 62 to 81 pounds per cubic foot, depending on the type of cement. General purpose cement, for example, can have a density up to 81 pounds per cubic foot.
There is another type of cement called builder's cement, which can have a density of anywhere from 62 to 78 pounds per cubic foot. Bulk density is not important for cement because, when thrown in water, the liquid fills in the spaces in between the particles where the air would normally be.
General purpose cement and builder's cement have different relative density ranges because they are fundamentally different kinds of cement. General purpose cement, also sometimes referred to as GP cement, is considered straight cement, made from cement clinker, gypsum and limestone. This type of cement is used in many different settings for construction of buildings and various other structures. Builder's cement, which is also sometimes referred to as general purpose blended cement, is different from regular general purpose cement because it contains a nominal mass of fly ash. This type of cement is known to maintain its strength for a longer period of time with improved workability and a lower carbon footprint.Learn More
Installing a cement board is a great way to add a solid, durable base for a ceramic tile floor: It is permanently bound to the tile with thin-set mortar, according to The Family Handyman. To install cement board on a floor, prepare a solid, squeak-free sub-floor. Ensure that the sub-floor is rock solid before laying a 1/2-inch cement board.Full Answer >
Cement dries in stages that take about 30 days to complete. It takes one to two days for cement to dry enough for people to walk on and five to seven days before people can drive on it.Full Answer >
Calcium aluminate cement is cement formed from the combination of limestone and alumina at high temperatures. It is used in specialized cement applications where resistance to extreme temperatures, mild acids and alkalies, sulfates and water are necessary. It is also used in situations where rapid strengthening is required.Full Answer >
Cut cement board by marking the cut, running a utility knife along the mark to cut the mesh overlay and snapping the board backwards to break it along the sliced line. Turn the board over, and cut the mesh on the other side at the break to complete the process.Full Answer >