ACI 224.1R-07

The causes of cracks in concrete structures are summarized. The procedures used to evaluate cracking in concrete and the principal techniques for the repair of cracks are presented. The key methods of crack repair are discussed, and guidance is provided for their proper application.



Keywords: alkali-silica reaction; alkali-carbonate reaction; autogenous healing; concrete; consolidation; corrosion; cracking (fracturing); drying shrinkage; epoxy resins; evaluation; grouting; heat of hydration; mass concrete; methacrylates; mixture proportion; overlay; plastic; polymer;precast concrete; prestressed concrete; reinforced concrete; repair; resins;settlement shrinkage; shrinkage; slab-on-ground; specification; thermal expansion; volume change.

This product replaces:ACI 224.1R-93(R1998) - Causes, Evaluation, and Repair of Cracks in Concrete Structures

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ACI 224.1R-07
ACI 224.1R-93(R1998)

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PrefaceChapter 1--Causes and control of cracking

1.1--Introduction1.2--Cracking of plastic concrete1.3--Cracking of hardened concrete

Chapter 2--Evaluation of cracking
2.1--Introduction2.2--Determination of location and extent of concretecracking2.3--Selection of repair procedures

Chapter 3--Methods of crack repair
3.1--Introduction3.2--Epoxy injection3.3--Routing and sealing3.4--Near-surface reinforcing and pinning3.5--Additional reinforcement3.6--Drilling and plugging3.7--Gravity filling3.8--Grouting3.9--Drypacking3.10--Crack arrest3.11--Polymer impregnation3.12--Overlay and surface treatments3.13--Autogenous healing

Chapter 4--References
4.1--Referenced standards and reports4.2--Cited references