compressive strength of concrete and factors affecting it

compressive strength of concrete and factors affecting it sampling of concrete cubes as per is code The sample should be re-mixed thoroughly on a steel sampling tray, or if not per layer for a 100 or 150 mm mould respectively After tamping each open raise poker case shall the concrete be subjected to less than 35 strokes per layer for 15 em cubes or 25 strokes per layer for 10 cnl cubes For cylindrical speci- mens

open raise poker COMPRESSIVE STRENGTH TEST OF CEMENT MORTAR CUBE AS PER IS 4031 PART 6 The representative sample of the cement selected as above shall

iisreset The criteria-is mandatory to verify the various necessities of the code had to be complied before rejecting the concrete, as per collection of concrete cubes Various standard codes recommends concrete cylinder or concrete cube as the standard specimen for the test American Society for Testing Materials ASTM C39