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Micromechanical Properties of Calcium Leached Engineered Cementitious Composites



Title: Micromechanical Properties of Calcium Leached Engineered Cementitious Composites
Author(s): J. Nemecek
Paper category : conference
Book title: International RILEM Workshop on High Performance Fiber Reinforced Cementitious Composites in Structural Applications
Editor(s): G. Fischer and V. C. Li
Print-ISBN: 2-912143-93-4
e-ISBN: 2912143942
Publisher: RILEM Publications SARL
Publication year: 2006
Pages: 205 - 211
Total Pages: 7
Nb references: 6
Language: English


Abstract: This paper focuses on a micro-scale experimental investigation of cement-based materials reinforced by short random fibers called Engineered Cementitious Composites (ECCs). Degradation processes caused by the calcium leaching and their influence on the micromechanical properties are studied in this contribution. Microstructural observations of this material based on environmental scanning electron microscopy (ESEM) and EDX elementary analyses are presented. The micromechanical investigations of the material are performed by nanoindentation. Special attention is paid to the transitional zone between fiber and surrounding cementitious matrix. The evolution of micromechanical properties and their change with increasing distance from the fiber are measured on chemically non-treated samples and on calcium leached samples.


Online publication: 2005-05-15
Classification: Durability
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/2912143942.022