RANCANGAN BETON NORMAL FC’ 19,3 MPA MENGGUNAKAN AGREGAT HALUS DAERAH GRADASI NO.2 DENGAN CAMPURAN VARIASI AGREGAT KASAR

The quality of an aggregate in a concrete mixture is one the factors that affect concrete. Geographically, Payakumbuh City and District 50 cities are passed by several rivers where river's products used local community as building material. This research uses quantitative approach, method experiment. results this study found average compressive strength normal fc was 19.3 Mpa at age 14 days using coarse from Halaban river, value 21.68 Mpa. Bukik Limbuku river 20.98 MPa Batang Agam 20.35 conclusion although gradation not include SNI standart, but after mixing - Agam, more than fc. '19.3 Mpa.Keywords: Material, Concrete Quality, Compressive Strength, Gradation.