7EPA.Using coal in highwa construction:Guide to Benefits and Impact[R].EPA-530-K-05-002,2005,4-7.
8Iyer R S,Scott J A.Power station fly ash a review of value-added utilization outside of the construction industry[J].Resources Conservation & Recycling,2001,31:217-228.
10Prakash S,Mohanty J K,Das B,Venugopal R.Technical note characterisation and removal of iron from fly ash of Talcher area Orissa India[J].Minerals Engineering,2001,14(1):123-126.