Reliability of the evaluation of concrete strength in structure with the number of specimen

Taichiro Kawanishi; Yoshihiro Masuda; Hitoshi Hamasaki

doi:10.3130/aijs.75.469

Reliability of the evaluation of concrete strength in structure with the number of specimen

Taichiro Kawanishi, Yoshihiro Masuda, Hitoshi Hamasaki

Research output: Contribution to journal › Article › peer-review

Abstract

This paper describes the influence of the core specimen's number on the sample mean and the standard deviation of concrete strength in structure. In this study, about 10 ∼ 40 core specimens collected from the three reinforced concrete structures at each floor, built at about 1955 ∼ 1965, are used. As a result, it is revealed that the mode of sample mean at three core specimens almost equals to the population mean, and that the mode of sample standard deviation at six core specimens almost equals to the population standard deviation.

Original language	English
Pages (from-to)	469-474
Number of pages	6
Journal	Journal of Structural and Construction Engineering
Volume	75
Issue number	649
DOIs	https://doi.org/10.3130/aijs.75.469
Publication status	Published - 2010 Mar
Externally published	Yes

Keywords

Core specimen
Sample mean
Sample standard deviation
Strength of concrete in structure

ASJC Scopus subject areas

Architecture
Building and Construction

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