Only 1 in 10 Homeowners Can Pass This Concrete Quiz

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  What is the main material used to pour a home patio slab?
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  How long until you can walk on freshly poured concrete?
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  What PSI rating is standard for a home driveway?
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  What color does properly mixed wet concrete look?
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  What does it mean when concrete is 'curing'?
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  What happens if you add extra water to the mix?
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  Which bag at Lowe's works best for setting a fence post?
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  Will adding rock salt make concrete stronger?
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  What's the easiest way to mix several bags of concrete?
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  When does it make sense to order ready-mix delivery?
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  Can you add water to concrete that has started setting?
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  What are the main ingredients in a concrete mix?
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  How long do you have to place concrete after mixing?
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  What's the best weather for pouring a concrete slab?
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  Above what air temperature is it generally safe to pour a patio?
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  Can you pour a slab directly onto frozen ground?
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  How thick should the compacted gravel sub-base usually be?
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  How high can concrete safely free-fall from a chute?
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  What does a slump test measure?
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  What's wrong with pouring the whole 8-inch slab in one lift?
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  When is the right time to start bull-floating fresh concrete?
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  Is rebar always needed in a backyard patio slab?
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  What does rebar mainly add to a concrete slab?
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  In a 4-inch patio slab, how deep should the rebar sit?
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  What's the main purpose of an expansion joint?
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  What happens if you strip forms within hours of pouring?
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  Why are rebar ties used at intersections?
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  Is curing concrete the same as letting it dry?
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  How long should new concrete be kept moist?
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  What usually happens if you seal concrete too early?
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  Which is a common way to cure fresh concrete?
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  A typical patio slab usually needs how many trowel passes?
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  Final troweling should begin after…
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  On a hot, dry day, fresh concrete needs…
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  Brooming fresh concrete too early usually causes…
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  A dusty, powdery surface on new concrete is often caused by…
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  Plastic shrinkage cracks usually appear…
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  Which concrete project is usually best left to a pro?
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  In most U.S. cities, which usually needs a permit?
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  Which is a clear red flag when hiring a contractor?
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  Before signing, you should always ask a contractor for…
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  What's the minimum PSI for residential load-bearing concrete?
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  A driveway bid is far lower than other quotes. What's the biggest red flag?
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  How large is usually too big for a typical DIY driveway pour?
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  A properly installed and cured concrete driveway can last about...
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  When under 25% of a driveway is damaged, you can usually...
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  A crack wider than ___ may signal structural damage.
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  Concrete resurfacing only works well if the base is...
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  Rock salt damages concrete mainly through...
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  A crack that goes all the way through the slab is called...
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  Before pouring concrete, the ground base must be...
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  Concrete should stay moist-cured for at least ___ days.
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  After a fresh pour, when can you usually walk on it?
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  What color is most residential concrete?
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  A contractor offers a big cash discount. You should...
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  What four things make up basic concrete?