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Concrete In Practice

Concrete In Practice

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Concrete In Practice is a series of one-page information sheets by the National Ready Mix Concrete Association on important technical topics, written in a non-technical “What, Why and How?” format.



Dusting Concrete Surfaces

  • What is dusting?

  • Why do concrete floors dust?

  • How to prevent dusting.

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Scaling Concrete Surfaces

  • What is scaling?

  • Why do concrete surfaces scale?

  • How to prevent scaling.

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Crazing Concrete Surfaces

  • What is crazing?

  • Why do concrete surfaces craze?

  • How to prevent crazing.

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Cracking Concrete Surfaces

  • What is cracking?

  • Why do concrete surfaces crack?

  • How to prevent cracking.

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Plastic Shrinkage Cracking

  • What is plastic shrinkage cracking?

  • Why does plastic shrinkage crack?

  • How to prevent plastic shrinkage cracking.

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Joints in Concrete Slabs on Grade

  • What are joints in concrete slabs?

  • Why construct joints?

  • How to construct joints.

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Cracks in Concrete Basement Walls

  • What types of cracks may occur?

  • Why do basement cracks occur?

  • How to construct quality basements.

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Discrepancies in Yield

  • What is concrete yield?

  • Why do yield problems occur?

  • How to prevent yield discrepancies.

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Low Concrete Cylinder Strength

  • What constitutes low cylinder strength?

  • Why are compressive tests low?

  • How to make standard cylinder tests.

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CIP 10

Strength of In-Place Concrete

  • What is the strength of in-place concrete?

  • Why measure in-place strength?

  • How to investigate in-place strength.

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CIP 11

Curing In-Place Concrete

  • What is curing?

  • Why cure?

  • How to cure.

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CIP 12

Hot Weather Concreting

  • What is hot weather?

  • Why consider hot weather?

  • How to concrete in hot weather.

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CIP 13

Concrete Blisters

  • What are blisters?

  • Why do blisters form?

  • How to prevent blisters.

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CIP 14

Finishing Concrete Flatwork

  • What is finishing?

  • Why finish concrete?

  • How to place concrete.

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CIP 15

Chemical Admixtures for Concrete

  • What are admixtures?

  • Why use admixtures?

  • How to use admixtures.

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CIP 16

Flexural Strength of Concrete

  • What is flexural strength?

  • Why test flexural strength?

  • How to use flexural strength.

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CIP 17

Flowable Fill Materials

  • What is flowable fill?

  • Why flowable fill used?

  • How flowable fill is ordered.

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CIP 18

Radon-Resistant Buildings

  • What is Radon?

  • Why be concerned about Radon levels?

  • How to construct Radon-resistant buildings.

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CIP 19

Curling of Concrete Slabs

  • What is curling?

  • Why do concrete slabs curl?

  • How to minimize slab curling.

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CIP 20

Delamination of Troweled Concrete Surfaces

  • What are delaminations?

  • Why does delamination occur?

  • How to prevent delaminations.

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CIP 21

Loss of Air Content in Pumped Concrete

  • What is air loss in pumping?

  • Why is air lost?

  • How to prevent air loss.

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CIP 22


  • What is grout?

  • Why is grout used?

  • How to specify grout.

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CIP 23


  • What is discoloration?

  • Why does discoloration occur?

  • How to prevent discoloration.

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CIP 24

Synthetic Fibers for Concrete

  • What are synthetic fibers?

  • Why use synthetic fibers?

  • How synthetic fibers work in early age concrete.

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CIP 25

Corrosion of Steel in Concrete

  • What is steel corrosion?

  • Why is steel corrosion a concern?

  • How to prevent steel corrosion.

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CIP 26

Jobsite Addition of Water

  • What is jobsite addition of water?

  • Why is water added at the jobsite?

  • How to add water at the jobsite.

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CIP 27

Cold Weather Concreting

  • What is cold weather?

  • Why consider cold weather?

  • How to place concrete in cold weather.

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CIP 28

Concrete Slab Moisture

  • What is concrete slab moisture?

  • How is slab moisture measured?

  • How to avoid concrete slab moisture.

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CIP 29

Vapor Retarders Under Slabs on Grade

  • What are vapor retarders and when are they required?

  • Why are vapor retarders used?

  • How to place concrete on vapor retarders.

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CIP 30

Supplementary Cementitious Materials

  • What are supplementary cementitious materials?

  • Why are they used?

  • How supplementary cementitious materials affect concrete properties.

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CIP 31

Ordering Ready-Mixed Concrete

  • What is ready-mixed concrete?

  • Why use ready-mixed concrete?

  • How to order ready-mixed concrete.

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CIP 32

Concrete Pre-Construction Conference

  • What is a pre-construction conference?

  • Why have a pre-construction conference?

  • How to conduct a pre-construction conference.

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CIP 33

High-Strength Concrete

  • What is high-strength concrete?

  • Why do we need high-strength concrete?

  • How to design high-strength concrete mixtures.

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CIP 34

Making Concrete Cylinders in the Field

  • What are concrete test cylinders?

  • Why make concrete test cylinders?

  • How to make and cure cylinders.

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CIP 35

Testing Compressive Strength of Concrete

  • What is the compressive strength of concrete?

  • Why is compressive strength determined?

  • How to test the strength of concrete?

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CIP 36

Structural Lightweight Concrete

  • What is structural lightweight concrete?

  • Why use structural lightweight concrete?

  • How to use structural lightweight concrete?

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CIP 37

Self-Consolidating Concrete (SCC)

  • What is Self-Consolidating Concrete?

  • Why use SCC?

  • How is SCC achieved?

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CIP 38

Pervious Concrete

  • What is pervious concrete?

  • Why use pervious concrete?

  • How to install pervious concrete pavement?

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CIP 39

Maturity Methods to Estimate Concrete Strength

  • What is concrete maturity?

  • Why use maturity methods?

  • How are maturity methods used?

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CIP 40

Aggregate Popouts

  • What is popout?

  • Why do concrete popout Occur?

  • How to avoid concrete popout?

  • How to repair concrete popout?

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CIP 41

Acceptance Testing of Concrete

  • What is acceptance of concrete?

  • Why conduct acceptance tests?

  • How should acceptance testing be conducted?

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CIP 42

Thermal Cracking of Concrete

  • What is thermal cracking?

  • Why does thermal cracking occur?

  • How to recognize thermal cracking?

  • How to minimize thermal cracking?

  • How to repair thermal cracking?

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