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No, cement cannot be used on its own except for rare circumstances, as it's only a binder to form other products, such as concrete or mortar. Follow the manufacturer's instructions to create a concrete or mortar mix. Concrete, for instance, needs cement, water, and aggregates such as sand and gravel. Using the right amount of water and water temperature is essential to ensure you have the right concrete slump and the mix spreads easily and cures well.

Yes, you should always wet concrete before jackhammering to avoid harmful dust from becoming airborne. According to the U.S. Occupational Safety and Health Administration, they recommend a wet-cut method that involves continuous spraying of the concrete where the jackhammer bit hits. Use a jackhammer with a built-in sprayer attachment, or have a work partner spray the area with a garden hose and spray nozzle.

A floating concrete slab is considered a footing since it distributes the weight of the structure to the soil, but not all concrete slabs are considered footings. For example, a T-shaped slab includes separate footings below the slab that support the concrete above and push the load further down into the ground. In that case, the slab would not be considered a footing.

Yes, using water when drilling concrete can help keep dust from clogging the hole and prevent your drill bit from wearing out, although you don’t need to spray water on the concrete while drilling. Water can also lubricate the bit and help keep it cool since drilling into concrete can generate a lot of friction and heat.