This paper describes effects of cement constitution and temperature on chlo
ride binding in cement paste, which is an important subject in relation to
lifetime modelling of reinforced concrete structures. The influence of ceme
nt constitution on chloride binding is investigated by substituting cement
with pure cement clinker: Both theoretical considerations and experimental
data for chloride binding in cement pastes ave presented. A physicochemical
based model to describe the influence of temperature on physical binding o
f chloride is presented Solid-state Al-27 and Si-29 magic-angle spinning nu
clear magnetic resonance spectroscopy has been used for quantification of t
he anhydrous and hydrated aluminate and silicate phases in the chloride-exp
osed cement pastes. The Al-27 isotropic chemical shift and nuclear quadrupo
le coupling is reported for a synthetic sample of Friedel's salt, Ca2Al(OH)
(6)Cl.2H2O.