ACI 207.3R 94 1994
$32.77
207.3R-94: Practices for Evaluation of Concrete in Existing Massive Structures for Service Conditions (Reapproved 2008)
| Published By | Publication Date | Number of Pages |
| ACI | 1994 | 15 |
Current Methods available for evaluating physical properties of concrete in existing structures to determine its capability of performing satisfactorily under service conditions are identified and discussed. The report recommends project design, operation and maintenance records, and in-service inspection data to be reviewed. Methods for evaluation of test and survey data are presented. Keywords: Alkali-aggregate reaction; alkali-carbonate reaction; cavitation; cements; chemical analysis; concrete cores; concrete dams; concrete durability; cracking (fracturing); elastic properties; erosion; evaluation; extensometers; impact tests inspection; laboratories maintenance; mass concrete; non-destructive tests; nuclear power plants; post-tensioning; pozzolans; resurfacing sampling; seepage: serviceability; spalling. Static tests stresses; surveys; x-ray diffraction.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | CONTENTS |
| 2 | CHAPTER 1— INTRODUCTION 1.1—Scope 1.2—Objective 1.3—Report CHAPTER 2— PRE-INSPECTION AND IN- SERVICE INSPECTION 2.1—Preconstruction evaluation 2.1.1 Project description documents 2.1.1.1 2.1.1.2 2.1.1.3 2.1.2 Contract documents 2.1.2.1 2.1.2.2 2.1.2.3 2.1.3 Regional data 2.1.3.1 2.1.3.2 2.1.3.3 2.1.3.4 2.1.3.5 2.1.4 Site subsurface data 2.1.4.1 2.1.4.2 2.1.4.3 2.1.4.4 2.1.4.5 2.1.4.6 2.1.5 Site surface data 2.1.5.1 |
| 3 | 2.1.5.1.a 2.1.5.1.b 2.1.6 Drainage 2.1.6.1 2.1.7 Environmental 2.1.7.1 2.1.7.2 2.1.7.3 2.1.7.4 2.1.7.5 2.2—Design criteria 2.2.1 Design memorandum or report 2.2.2 Values of static and intermittent loadings, wind, temperature, impact, loads 2.2.3 For hydraulic structures: hydrostatic and hydrodynamic loads 2.2.4 Type of analysis: static, dynamic 2.3—Concrete laboratory records 2.3.1 Materials used 2.3.1.1 2.3.1.1.a 2.3.1.1.b 2.3.1.2 2.3.1.2.a 2.3.1.2.b 2.3.1.3 2.3.1.3.a 2.3.1.3.b 2.3.1.3.c 2.3.1.3.d 2.3.1.3.e 2.3.1.4 2.3.2 Concrete records 2.3.2.1 2.3.2.2 2.3.2.3 2.3.2.4 2.3.2.5 2.3.2.6 2.3.2.7 2.4—Batch plant and field inspection records 2.4.1 Storage and processing of aggregates 2.4.1.1 2.4.1.2 2.4.1.3 2.4.2 Cement, pozzolan, and admixture storage and handling 2.4.3 Forms 2.4.3.1 2.4.3.2 2.4.3.3 2.4.4 Preparation and condition of construction joints 2.4.5 Mixing operation 2.4.5.1 2.4.5.2 2.4.5.3 2.4.5.4 2.4.5.5 2.4.5.6 2.4.6 Method of transporting concrete: Pumps, chutes, conveyor belts, trucks, buckets, etc. 2.4.7 Method of placing concrete 2.4.7.1 2.4.7.2 2.4.8 Concrete protection 2.4.8.1 2.4.8.2 2.4.8.3 2.5—Operation and maintenance records 2.5.1 Operation records 2.5.1.1 2.5.1.2 2.5.1.3 2.5.1.3.a 2.5.1.3.b 2.5.1.3.c 2.5.1.3.d 2.5.1.4 2.5.1.5 2.5.1.6 2.5.2 Maintenance records 2.5.2.1 2.5.2.2 2.5.2.3 2.5.2.4 2.5.2.5 2.6—In-service inspections 2.6.1 General |
| 4 | 2.6.2 Routine inspections 2.6.3 Periodic inspections 2.6.4 Inspection reports and records CHAPTER 3— IN-SITU CONDITION SURVEYS AND TESTING |
| 5 | 3.1—Surface damage surveys 3.1.1 Surface mapping 3.1.1.1 Scope 3.1.1.2 Procedure 3.1.2 Crack surveys 3.1.2.1 Scope 3.1.2.2 Procedure |
| 6 | 3.2—Joint surveys 3.3—Vibration load testing 3.4—In-situ stress determinations 3.4.1 Overcoring 3.4.2 Other methods |
| 7 | 3.5—Supplemental instrumentation 3.5.1 Extensometer points 3.5.2 Borehole extensometers 3.5.3 Joint meter 3.5.4 Electrolevel 3.5.5 Cased inclinometer 3.5.6 Tilt-measuring instruments 3.5.7 Observation wells 3.5.8 Piezometer 3.5.9 Vertical and horizontal control 3.5.10 Weir/flume 3.5.11 Thermocouple/resistance thermometer 3.5.12 Plumb bob 3.6—Geophysical logging |
| 8 | 3.7—Down-hole video camera 3.8—Seepage monitoring 3.9—Nondestructive testing 3.9.1 General 3.9.2 Surveying techniques |
| 9 | 3.9.2.1 Rebound hammer 3.9.2.2 Probe penetration 3.9.2.3 Pulse velocity 3.9.2.4 Acoustic echo techniques |
| 10 | 3.9.2.5 Radar CHAPTER 4— SAMPLING AND LABORATORY TESTING 4.1— Core drilling and testing 4.1.1 Strength and elastic property determination 4.1.1.1 Standard tests 4.1.1.2 Other tests 4.1.1.2.a Dynamic loading 4.1.1.2.b Seismic loading |
| 11 | 4.2—Petrographic analysis 4.2.1 Sampling 4.2.2 Visual examination 4.2.3 Petrographic microscopy 4.2.4 Other petrographic methods 4.3—Chemical analysis |
| 12 | 4.4—Physical tests 4.5—Report 4.5.1 Location, elevation, and orientation of cores tested 4.5.2 List of physical and chemical tests and their results 4.5.3 Photographs of cores as received, photographs and photomicrographs of features of interest, and photomicrographs of thin sections 4.5.4 Conclusions based on test results of condition of concrete CHAPTER 5— DAMAGE 5.1— Origin of distress 5.1.1 Temperature and shrinkage surface cracks 5.1.2 Structural cracking 5.1.3 Cavitation erosion and abrasion 5.1.4 Cement-aggregate reaction |
| 13 | 5.1.5 Environmental distress 5.1.6 Physical and thermal properties 5.2—Considerations for repair and rehabilitation 5.2.1 Estimated service life 5.2.2 Eliminating the cause 5.2.3 Surface protection 5.2.4 Restoring structural integrity CHAPTER 6— REPORT 6.1— General 6.2—Contents of report 6.2.1 Description of the project 6.2.2 Pertinent design criteria for structures of project 6.2.3 Summary of data collected 6.2.3.1 Existing records 6.2.3.2 Visual inspection of concrete |
| 14 | 6.2.3.3 Analysis of existing instrumentation, investigations, inspections, and test records 6.2.3.4 Results and analyses of new investigations and test data 6.2.4 Summary evaluation of concrete 6.2.4.1 Evaluation of portions of structures not requiring immediate repair 6.2.4.2 Evaluation of portions of structures requiring immediate repair 6.2.4.3 Alternative methods of repair CHAPTER 7— REFERENCES 7.1— Recommended references 7.2—Cited references |
