METHOD FOR TESTING STRENGTH OF CONCRETEPROBLEM TO BE SOLVED: To precisely determine the strength in an optional position of hardened concrete in a constructing site.NAGAO HIROYUKI長尾 裕行
Hence, the compressive strength of concrete at the age of 28 days is often used as a quality inspection indicator in engineering [1]. Compression load testing is the usual method for determining the compressive strength of concrete. The test is time-consuming and sample selection is subjective,...
The study aims to develop a new approach of concrete tensile strength test characteristic by minimizing the traditional drawbacks such as load eccentricity, stress or strain non-uniformity and stress concentration in traditional test methods and of a distinguished gauge region which undergoes uniform tens...
While inspecting the compressive strength of concrete by means of a rebound method,the manual calculating is a very large work quantity,and easy to bring about some unnecessary mistakes. 采用回弹法检测混凝土抗压强度时,大量检测数据的手工计算工作量大且容易出错,应用Ex-cel中的VBA工具可以大大简化编程计...
Concrete specimens were tested with different testing methods (direct tension and four-point loading) and four strain rates (106,10–5,10–4, and103s1). The results show that the peak stresses increase with an increase in the strain rate; the strain rate dependence of the peak stress is ...
Comparative testing reveals that high strength concrete (HSC) compressive strength values are greater by 5% when measured on 100 x 200 mm specimens. Moreover, the coefficient of variation on one set of three 100 x 200 mm specimens is as small as, or smaller than that for 150 x 300 mm sp...
non-destructive testing methodsThe aim of this study is to assess the compressive strength values of different concrete classes by using the image processing... C Basyigit,B Comak,S Kihncarslan,... - 《Construction & Building Materials》 被引量: 32发表: 2012年 Reinforced concrete structure: ...
PROBLEM TO BE SOLVED: To simply, quickly, and inexpensively perform an accurately compression strength test for obtaining a measurement result that is equivalent to that of a conventional JIS standard. SOLUTION: In a capping device in a concrete or mortar compression strength testing device consisting...
Methods for Construction Materials2 C 873 Test Method for Compressive Strength of Concrete Cylinders Cast in Place in Cylindrical Molds2 C 1077 Practice for Laboratories Testing Concrete and Concrete Aggregates for Use in Construction and Criteria for Laboratory Evaluation2 C 1231 Practice for Use of...
M Bilgehan - 《Nondestructive Testing & Evaluation》 被引量: 38发表: 2011年 Prediction of concrete compressive strength by combined non-destructive methods The compressive strength of concrete f c is one of most important mechanical parameter in the performance assessment of existing reinforced concrete...