The effect of Mount Sinabung volcanic ash and the addition of silica fume as a partial substitution of cement weight on the compressive strength of concrete
Fahrizal Zulkarnain
iD
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Department of Civil Engineering, Universitas Muhammadiyah Sumatera Utara, 20238 Medan, Sumatera Utara, Indonesia
Zulkifli Siregar
iD
Department of Civil Engineering, Universitas Muhammadiyah Sumatera Utara, 20238 Medan, Sumatera Utara, Indonesia
Fadzil Mat Yahaya
iD
Faculty of Civil Engineering Technology, Universiti Malaysia Pahang Al-Sultan Abdullah, 26300 Kuantan, Pahang, Malaysia
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