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Pengaruh Penambahan Abu Kayu Damar Batu (Agathis Alba) pada Campuran Semen Portland dan Agregat Sebagai Aplikasi Beton K175
(Universitas Sumatera Utara, 2018)
Making K175 concrete by using the addition of damar batu ash as cement substitute with 28-day immersion time. This research was conducted to determine the effect on physical and mechanical properties of K175 concrete with ...