Pengaruh Dimensi Benda Uji Terhadap Kuat Tekan Beton K-175

Abstract

The compressive strength is the concrete main mechanical characteristic can be found out through the compressive test research in the laboratory to the test object both in cube and cylinder shapes, in which the standard cylinder measure is 15 cm x 30 cm, and the cube is 15 cm x 15 cm x 15 cm and 20 cm x 20 cm x 20 cm. To find out the information about the concrete compressive strength price by the concrete test object measure, it will be conducted the researches in the laboratory to obtain the mixture composition determining in 28 days the age of concrete. The variations of the concrete measure made in 5 cm x 5 cm x 5 cm, 10 cm x 10 cm x 10 cm, 15 cm x 15 cm x 15 cm and 20 cm x 20 cm x 20 cm in cube dimensional variation, by the quantity of each test object of 5 objects in each test object measure. It was through the standard testing procedure of compressive strength and using the standard formulas for calculating the average compressive. Then, it was obtained the compressive test data that the measure increment of dimensional test object generated the average compressive strength increment, through the cube test object by each measure: 5 cm x 5 cm x 5 cm, 10 cm x 10 cm x 10 cm, 15 cm x 15 cm x 15 cm and 20 cm x 20 cm x 20 cm obtained the average compressive strength of each: 5.8 MPa, 13.4 MPa, 25 MPa, and 44.6 MPa.