American Concrete Institute

On Site With Pervious Concrete
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On Site With Pervious Concrete

Stormwater runoff flows right through this porous concrete pavement. Read more

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Designing Concrete Basement Walls

An engineer explains how wall thickness, rebar, and proper drainage all affect the ability of poured concrete foundation walls to resist lateral soil pressure. Read more

Concrete Basics
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Concrete Basics

Concrete seems about as straightforward and rugged as any material on site. But... Read more

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A Quick Cure for Problem Soils

Surprise soils can complicate any project. When the excavation turns up weak or expansive clay, this low-strength ready-mix fill can provide a stable base for the foundation without busting the budget. Read more

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Resources

Concrete manuals, a how-to for collecting what you’re owed, curved stairbuilding guide, street map of the U.S. on CD-ROM & more Read 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. Read 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. Read more

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Sub-slab Vapor Barriers

A slab poured directly on top of a vapor barrier dries more quickly on top than on the bottom, causing cracking and curling in the concrete. Here’s one way to solve the problem. Read more

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Letters
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Ordering Ready-Mix Concrete

There’s more to buying concrete than specifying compressive strength. Understanding cement types admixures, and batch-plant basics will help you get the right mix for the job. Read more

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