ACI 214 : 1977(R1989)

Chapter 1 Introduction
Chapter 2 Variations in strength
   2.1 General
   2.2 Properties of concrete
   2.3 Testing methods
Chapter 3 Analysis of strength data
   3.1 Notation
   3.2 General
   3.3 Statistical functions
   3.4 Strength variations
   3.5 Standards of Control
   3.6 Standards of control
Chapter 4 Criteria
   4.1 General
   4.2 Data used to establish minimum required average
       strength
   4.3 Criteria for strength requirements
Chapter 5 Evaluation of data
   5.1 General
   5.2 Numbers of tests
   5.3 Rejection of doubtful specimens
   5.4 Additional test requirements
   5.5 Basic quality-control charts
   5.6 Other evaluation techniques
Chapter 6 References
   6.1 Referenced standards and reports
   6.2 Cited references
Appendix A Examples of CUSUM technique
   A.1 Introduction
   A.2 Theory
   A.3 Calculations
   A.4 Analysis and comparison with conventional control
       charts
   A.5 Management considerations of interference
   A.6 Establishing limits for interference
   A.7 Difficulties with CUSUM chart

Statistical methods provide valuable tools for assessing results of strength tests, and such information is also of value in refining design criteria and specifications. Discusses briefly the numerous variations that occur in the strength of concrete and presents statistical methods useful in interpreting these variations.