Tewodros Ghebrab

Structure-Property Relationships for Cement-Based Materials

Development of Structure-Property Relationships for Hydrated Cement Paste, Mortar and Concrete

• Broschiertes Buch

Produktbeschreibung

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.

Produktdetails

• Verlag: VDM Verlag Dr. Müller
• Seitenzahl: 164
• Englisch
• Gewicht: 232g
• ISBN-13: 9783639119305
• ISBN-10: 3639119304
• Artikelnr.: 26080971

Autorenporträt

BSc. in Civil Engineering, Addis Ababa University, Ethiopia
(1992)
MSc. in Structural Engineering, University of New South Wales,
Sydney, Australia (1996)
PhD. in Structural Engineering, Michigan State Universtiy, USA
(2008)