Browsing Master Theses by Keyword "Abu Batubara ( Fly Ash )"
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Pemanfaatan Limbah Debu Batubara, Batu Apung dan Abu Sekam Padi sebagai Bahan Substitusi Semen dan Pasir dalam Pembuatan Batako
(Universitas Sumatera Utara, 2010)Concrete bricks in this study is made of a mixture of cement, sand, fly ash, pumice and ash from rice husk. Variables on this brick is the composition of fly ash substituted for cement ranging from 0 – 30 % of the volume ...