QUALITY CONTROL FOR COMPRESSIVE STRENGTH OF CONCRETE BY THE USING SMALL-SIZED SPECIMENS WHICH DIAMETER IS 80mm

For the purpose of productivity improvement which are the working property and the labor saving, this report reviews small sized specimens for compressive strength of concrete. From results of examination, when using the specimens of φ80 by 160mm, effect for test values due to production process and specimen numbers for compressive strength are small using φ100 by 200mm. Furthermore, showed the applicability of small specimens about management technique for the various using materials, mix designs and environment.