m r бетонд шаардлагатай дүүргэгчийн тоо хэмжээ
· M.Ahmaruzzaman,A review on the utilization of fly ash,Progress in Energy and Combustion Science 36 (2010) 363.15.3.A.B.Mukherjee,B.Zevenhoven,P.Bhatttachaya,K.S.Sajwan,R.Kikuchi,Mercury flow via coal and coal utilization by products: a global perspective,Resource Conservation …