Use of demoliton concrete to produce durable structural concrete

摘要: Abstract The results presented in this paper form part of a current programme research on the use recycled concrete as an aggregate for manufacture new structural concrete. Emphasis is placed durability related properties rather than engineering properties. Durability assessed terms permeability, porosity and strength. examines relation between strength permeability presents numerical relationships obtained by statistical analysis. Partial fly ash substitution fines increases but does not improve long term permeability.