Analisa Perbandingan Mutu Beton dengan Sumber Material Agregat Halus yang Berbeda

Abstract

Various studies and experiments in the field of concrete as part of efforts to improve the quality of concrete, materials technology and techniques of execution obtained from the research and experiments are intended to answer the demands of an increasingly high against the use of concrete as well as overcoming the constraints that often occur in the execution of work in the field. The use of natural aggregate from a good source can both be one option to solve this problem. The purpose of this study was to determine the extent of the effect of different sources of fine aggregate material on the quality of the concrete compressive strength, samples are cylindrical (o = 15; h = 30), the quality of concrete planned K-600. The total sample of 80 samples. Samples were tested at the age of 7, 14, and 28 days, with the first treatment performed prior to testing. The research result shows that the highest compressive strength of concrete at the age of 7 and 14 days found in concrete mixtures using sand Galunggung in the amount of 500.1 kg / cm2 and 611.4 kg / cm2 and for 28 days / in a stable condition compressive strength the concrete contained in the concrete mix with sand Cimalaka that is equal to 739 kg / cm2. The unit price per m3 of concrete using sand Galunggung Rp 762,127.05 and the unit price per m³ of concrete using sand Cimalaka Rp715,997.05.