Please use this identifier to cite or link to this item:
|Title:||E-modulus evolution and its relation to solids formation of pastes from commercial cements|
|Abstract:||Models for early age E-modulus evolution of cement pastes are available in the literature, but their validation is limited. This paper provides correlated measurements of early age evolution of E-modulus and hydration of pastes from five commercial cements differing in limestone content. A recently developed methodology allowed continuous monitoring of E-modulus from the time of casting. The methodology is a variant of classic resonant frequency methods, which are based on determination of the first resonant frequency of a composite beam containing the material. The hydration kinetics and thus the rate of formation of solids was determined using chemical shrinkage measurements. For the cements studied similar relationships between E-modulus and chemical shrinkage were observed for comparable water-to-binder ratio. For commercial cements it is suggested to model the E-modulus evolution based on the amount of binder reacted, instead of the degree of hydration.|
|Document Type:||Artigo em Revista Científica Internacional|
|Appears in Collections:||FEUP - Artigo em Revista Científica Internacional|
Files in This Item:
|File||1.13 MB||Adobe PDF||Request a copy from the Author(s)|
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.