Feasibility test study on ultra-small diameter core sample to detect concrete compressive strength
In this paper,the compressive strength of 30.5mm,35mm and 42mm ultra-small diameter core sam-ples is tested,and the strength change relationship between them and standard cubic specimens and 100mm and 75mm diameter core samples is compared and analyzed,and the feasibility of using ultra-small diameter core samples to detect the compressive strength of concrete is studied.