Concrete Strength

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Frost-Protected Shallow Foundations

Correctly placed perimeter insulation eliminates the need for a deep frost footing. A Midwest builder explains this CABO-approved method for building foundations and slabs-on-grade. More

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Practical Engineering: Deciphering the Engineer's Lingo

In this JLC classic, Scott McVicker explains some of the common terms engineers... More

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Controlling Cracks in Concrete Slabs

It’s inevitable: A concrete slab is going to crack. But how much it cracks, and where, depends on the amount of water in the mix, where you place control joints, and how you finish the slab. Here’s what you need to know for good results. More

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Hot-Weather Concreting

Concrete sets up fast in hot, dry weather, increasing the chance that cracks and surface defects will develop. A concrete contractor from the desert Southwest tells how to keep your cool in the heat of a concrete pour. More

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Practical Engineering: Down With Sagging Shelves

Taking the sag out of shelving More

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Cold Weather-Concreting

Cool temperatures can reduce concrete strength unless precautions are taken. Here are the products and techniques that guarantee a successful pour — even when it’s below freezing. More

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Practical Engineering: Concrete and Steel -- An Effective Partnership

Rebar recommendations More

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Q&A: Preventing Stucco Cracks

Q: We often get conflicting information from subs about certain stucco details. Specifically, what’s the best way to avoid cracking? Must the scratch coat cure for 48 hours before applying the brown coat, or can the brown coat go on the same day? How long should the scratch coat cure before the color coat? Also, does one type of lath perform better than another? More

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Letters

Controlling city water pressure, fast framer balances speed with technique More

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Rebar Tips

Steel reinforcing bar is essential for strong concrete. A foundation contractor explains the fine points of proper sizing, handling, and placement of rebar. More

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