title: High durability cementitious material with mineral admixtures and carbonation curing.
abstract: Nuclear waste repositories need highly durable cementitious materials to function for over thousands of years while resisting leaching and degradation. The durability of cementitious material can be effectively improved by reducing permeability and by changing cement hydrates to a less soluble matrix. This paper describes the properties of carbonated new cementitious materials containing belite-rich cement and gamma-2CaO.SiO2 as main components. In addition, the long-term leaching properties are investigated and compared with ordinary Portland cement by using a predictive leaching model.
authors.affiliation: Kajima Technical Research Institute, Civil Structure and Materials Group, 2-19-1 Tobitakyu, Chofu-shi, Tokyo, Japan. kenzo@kajima.com
authors.forename: K
authors.initials: K
authors.lastname: Watanabe
authors.forename: K
authors.initials: K
authors.lastname: Yokozeki
authors.forename: R
authors.initials: R
authors.lastname: Ashizawa
authors.forename: N
authors.initials: N
authors.lastname: Sakata
authors.forename: M
authors.initials: M
authors.lastname: Morioka
authors.forename: E
authors.initials: E
authors.lastname: Sakai
authors.forename: M
authors.initials: M
authors.lastname: Daimon
mesh_terms: D002244:Carbon / Q000737:chemistry*; D003252:Construction Materials; D008903:Minerals / Q000737:chemistry*
chemical_list: D008903:Minerals; D002244:Carbon