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Slab Notes

Slab Notes

Plain-English guides on thickness, clay soil, freeze-thaw, curing, cracks, sealing and stamped concrete, written to be read in a few minutes.

A freshly troweled light gray concrete slab with a finishing trowel and a magnesium float resting on it
A Driveway Checklist Before You PourPlanning Your PourA Driveway Checklist Before You PourSlope, base, joints, finish and timing: here are the decisions that make a new driveway work.How to Estimate Yards of ConcretePlanning Your PourHow to Estimate Yards of ConcreteLength times width times thickness, divided by twenty-seven. Here is the simple way to estimate concrete for a slab.Repair or Replace? How to DecideCare and RepairRepair or Replace? How to DecideSome concrete problems are cosmetic and some are structural. Here is a simple way to decide between repair and replacement.How to Seal a Concrete PatioCare and RepairHow to Seal a Concrete PatioSealing protects color and keeps water and salt out. Here is when and how to seal a patio.Stamped Concrete Patterns and Colors: How to ChooseDecorative ConcreteStamped Concrete Patterns and Colors: How to ChooseSlate, cobblestone, brick, wood plank and flagstone each give a different mood. Here is how to pick a pattern and a color.Why Concrete Cracks and What to Do About ItCare and RepairWhy Concrete Cracks and What to Do About ItMost concrete cracks a little. Here is how to tell harmless shrinkage cracks from the ones that signal a problem.How Long Does Concrete Take to Cure?Pour Day and CuringHow Long Does Concrete Take to Cure?Hard to the touch is not the same as fully cured. Here is a typical timeline from pour day to full strength.Hot, Dry and Windy: Pouring Concrete on the Front RangeColorado ConditionsHot, Dry and Windy: Pouring Concrete on the Front RangeLow humidity and steady wind pull water out of fresh concrete fast. Here is how crews keep a pour from drying too quickly.Pouring Concrete in Cold WeatherColorado ConditionsPouring Concrete in Cold WeatherConcrete can be poured in winter when it is protected. Here is what changes and what to expect on a cold pour.Freeze-Thaw and De-Icers: What Winter Does to ConcreteColorado ConditionsFreeze-Thaw and De-Icers: What Winter Does to ConcreteColorado winters swing from sun to hard freeze, and de-icers make it worse. Here is how surface damage happens and how to slow it.Concrete and Colorado Clay Soil: Why the Base MattersColorado ConditionsConcrete and Colorado Clay Soil: Why the Base MattersMuch of the Front Range sits on clay that swells when wet and shrinks when dry. A good base is how concrete survives it.How Thick Should a Concrete Slab Be?Planning Your PourHow Thick Should a Concrete Slab Be?Four inches works for many patios and walks, but cars, trucks and equipment need more. Here is how to match thickness to the job.

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