Konversi Kuat Tekan Beton & Modulus Elastis

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KONVERSI KUAT TEKAN BETON & MODULUS ELASTIS 1 MPa = 10,2 kg/cm2 1 KPa = 1000 MPa 1 KN = 1000 MPa 1 KN = 1000 N BERAT JENIS BETON BJC 24 KN/M3 =2400KG/M3 =2,4 T/M3

Catatan : Mutu K-225 setara fc’ = 19 MPa, dst. Konversi dari mutu K ke fc’ dikalikan 0,083 Modulus elastis untuk beton normal (E = 4700 √ fc’)

RASIO KUAT TEKAN BETON TERHADAP UMUR REFERENSI: PBI-1971 •

Semen Portland Biasa



Semen Portland dengan Kuat Tekan Awal Tinggi

Contoh : Mutu fc’ = 25 MPa (28 hari) saat umur 7 hari = 0,65.25 = 16,25 MPa (Semen biasa), dst.

KUAT TEKAN & FAKTOR PENGALI VARIASI DIMENSI SILINDER BETON REFERENSI: Properties of Concrete, A.M. Neville

Contoh : Hasil uji silinder d = 75 mm h = 150 mm didapatkan fc’ = 20 MPa Kekuatan sebenarnya = 0,943.20 = 18,86 MPa (atau = 1/104% . 20 , karena hasil uji 104% dari yang sebenarnya) Hasil uji silinder d = 150 mm h = 150 mm (d/h = 150/150 = 1,0) didapatkan fc’ = 17 MPa Kekuatan sebenarnya = 0,92.17 = 15,64 MPa

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