KAJIAN BETON MUTU TINGGI MENGGUNAKAN SLAG SEBAGAI AGREGAT HALUS DAN AGREGAT KASAR DENGAN APLIKASI SUPERPLASTICIZER DAN SILICAFUME

Abstract

The Purposes of this research were detects correlation prosentase subtitusi aggregate slag concrete quality optimum, where does soft aggregate use and coarse from slag as proper aggregate to fulfill a concrete construction with special spesification. aggregate use slag can optimize deposit solid slag from steel fusion factory be tall quality concrete aggregate, this research uses slag in the place of soft aggregate and coarse by using method doe then subtitution prosentase mixture as big as 0%,20%,40%,60%,80% and 100% from heavy sand and broken stone, with sikament. ln 1% and sikafume 3% from heavy cement. cylinder formed test thing with age that soaking system treatment 28 days. Research result demoes compressive strength highest achieved in prosentase slag 60%, that is 671.57 kg/cm2 or rise as big as 9.2 % from prosentase slag 0%, in tensile strength highest achieved in prosentase slag 60%, that is 43.62 kg/cm2 or rise 8.5% from prosentase slag 0%, for smallest value porosity testing in prosentase slag 60%, that is 0.98% lower 13.8% from prosentase slag 0%. at the height of subtitusi slag value modulus elasticity inclined more lower, value modulus bottommost elasticity in subtitusi slag 60% as big as 20056 mpa.