Statistical data of ultimate strength of ready-mixed concrete

Abstract

This research is based on the study of samples of ready-mixed concrete. The samples of ready-mixed concrete. The sample consists of the construction project of the Main Building and Library at Vongchavalitkul University on the primary campus. The process includes taking samples and testing the materials, which followed the ASTM standard. Within this process, the sample were tested for each nominal value of ultimate strength of the ready-mixed concrete by group the age of continuous curing in Moisture for 7, 14 and 28 days.

The methodology of this research was to measure the ultimate strength of the cured concrete tested by British (BS 1881) standards. In order to analyze the data that was tested, statistical information such as the mean, variance, standard deviation and coefficient of variation were observed. In addition, other information data used were the distribution and parameters of the distribution.