Kniha Structure-Property Relationships for Cement-Based Materials Tewodros Ghebrab

Structure-Property Relationships for Cement-Based Materials

Jazyk: Angličtina
Vazba: Brožovaná
Vydavatel: VDM Verlag
Dostupnost: Skladem u dodavatele
Odesíláme za 14-21 dnů
1 583
A mechanistic approach was adopted to develop models §for the mechanical properties of hydrated ceme...

Informace o knize

Jazyk
Angličtina
Vazba
Kniha - Brožovaná
Vydáno
2009
Stránek
164
EAN
9783639119305
ISBN
3639119304
Enbook ID
06820757
Vydavatel
Hmotnost
249
Rozměry
152 x 229 x 10

Kompletní popis

A mechanistic approach was adopted to develop models §for the mechanical properties of hydrated cement §paste (hcp), mortar and concrete. These models §reflect the fundamental structure of concrete, and §represent a departure from the predominantly §empirical models available for cement-based §materials. The intrinsic elastic modulus and §fracture toughness of hcp were determined based on §the interatomic interactions between calcium §silicate hydrate particles, which are the primary §binder among the hydration products of cement. The §elastic modulus model of hcp was developed §by introducing the effect of elliptical capillary §pores into the corresponding intrinsic model. The §fracture toughness model of hcp was also developed §by introducing the energy dissipation associated §with the C-S-H/C-S-H debonding and the phononic §frictional pullout of calcium hydroxide (CH) §crystals , with the latter phenomenon found to be §the major contributor. The strength of hcp was §determined using the elastic fracture mechanics §principles. Experimental results and available §empirical models were used to evaluate the models.

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