KUAT TEKAN BETON MUTU TINGGI DENGAN VARIASI MERK BAHAN TAMBAH SUPERPLASTICIZER
ISNANDI, FAJAR DIMAR
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Along with the development of technology, especially in the field of structure. Concrete is still the main choice of building structural elements, because of the superiority of concrete in strength, fire resistance, easy obtain constituent materials and low price. Hight quality concrete is needed on bridges and high-rise buildings. Hight strength concrete can be obtained by adding superplasticizer. The function of the superplasticizer is to facilitate the process of work as well as to improve the quality of the concrete. The purpose of this study was to determine the compressive strength of high quality concrete with a variety of brands of ingredients added superplasticizers at the age of 7 days, 14 days and 28 days. Making test specimens refers to the American Concrete Institute Method. The research uses a cylindrical test objects 15 cm x 30 cm. The results showed that at the age of 7 days the Bestmittel brand variation obtained the highest average value of 40.47 MPa, at the age of 14 days the variety of Viscocrete 1003 brands obtained the highest average value of 45.06 MPa and at the age of 28 days the Viscocrete brand variation 1003 obtained the highest average value of 46.58 MPa.