FREQUENTLY ASKED QUESTIONS

FREQUENTLY ASKED QUESTIONS

These are some of the questions we are asked frequently regarding concrete, care and repairs.

If your question does not appear on the list, please feel free to reach out to us and ask away.

When is a good time to pour concrete?

A-Concrete Inc has the capability to pour all year around.

How thick should my concrete be poured?

Due to expansive soils the minimum thickness is 4”. Though, depending on the weight to be applied to a slab, can be any thickness.

Does concrete crack?

YES, ALL CONCRETE CRACKS! This is due to the evaporation of water coming out of the concrete mixture as it cures. This is not a reflection of poor workmanship.

What are control joints?

Controls joints are intentional lines placed in the concrete to weaken the slab and help guide the cracks to follow in a straight line along the joint line. This is an attempt to help prevent random cracking, but not all cracks will crack in a straight line or follow the joint line.

How long after concrete is poured can it be walked on?

In most general situations, the following day you can walk on the concrete without damage. However, depending on weather conditions and some other variables it can length or shorten this amount of time.

How long before I can drive or park on my new driveway?

Most driveways that are 4” thick need a cure time of 7 days before it can be driven on. Although different concrete mix designs can be used to decrease this timeframe to 12 hours, if needed. These mix designs are called, 12-hour mix, 24-hour mix and 48-hour mix.

How long does it take to tear out and repour my concrete driveway?

Most driveways can be torn out and replaced within one day.

Should ‘I seal my control joints after they are cut?

They should be sealed with a concrete caulking called Sikaflex, which is self-leveling material that is placed in the control joint.

What can be done to reduce the magnesium chloride damage caused to my driveway?

Magnesium Chloride causes your driveway to spall or chip away. When pouring new driveways, a chemical called AE3, which anti-spalling chemical can be added to the mix design to prevent this chemical from causing spalling damage.

How often do I need to clear seal my colored stamped concrete?

Clear seal should be applied as needed. Typically, the first application should be applied 28 days after the pour and then again, the following year. If proper snow removal is done throughout the winter months, a seal should be only be reapplied every 3-5 years.

How long should my concrete last?

Properly maintained concrete should last 50 years