In today’s market, it is imperative to be knowledgeable and have an edge over the competition. ACI members have it…they are engaged, informed, and stay up to date by taking advantage of benefits that ACI membership provides them.
Read more about membership
Become an ACI Member
Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.
American Concrete Institute
38800 Country Club Dr.
Farmington Hills, MI
Feedback via Email
Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Core Sampling Size in Nondestructive Testing of Concrete Structures
Author(s): A. Di Leo, G. Pascale, and E. Viola
Publication: Special Publication
Appears on pages(s): 459-478
Keywords: calibrating; compressive strength; concrete cores;
evaluation; nondestructive tests; sampling; statistical analysis.
Abstract:In this paper a procedure aimed to assess the characteristic value of actual compressive strength of in-situ concrete is presented. It involves: an evaluation of the homogeneity, which may suggest a subdivision of the structure in parts characterized by different estimated strength levels; a calibration of estimated strength values on the basis of a sample of cores. The experimental values obtained from cores can be utilized to modify the characteristic value of estimated strength: a) by means of an appropriate correcting coefficient; b) statistically through the Bayesian approach, according to which the mean value of the actual strength is considered as a random variable. Consequently, its characteristic value also becomes a random variable. Within the context of the subjectivistic approach to the decision theory, the optimization of the core sampling size is also discussed. Two examples of application of the procedure are reported.
Click here to become an online Journal subscriber