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A platform for research: civil engineering, architecture and urbanism
Resonant acoustic evaluation of mechanical properties of masonry mortars
HighlightsAcoustic tests showed lower dispersion and higher elastic moduli than static tests.EDynamic showed a mutual correlation with fc and EStatic.Mixes with greater amount of lime had lower strength and much higher deformability.Lime had a strong influence in the variation of mechanical properties with age.Mortar with lime showed a behavior over time influenced by hydration and carbonation.
AbstractThis study aims to establish relationships between dynamic and static mechanical properties for masonry mortars containing lime. An experimental research was conducted with four mortar mixes of different compositions. Acoustic and compression tests were performed at different ages. Acoustic tests showed lower dispersion and higher elastic moduli than static tests. A good relationship between them was found assuming a power law (R2=0.966). Dynamic elastic modulus showed a mutual correlation with compressive strength and static elastic modulus (R2=0.982). A new equation was proposed to represent mechanical properties vs. age considering the coupling between the hydration and carbonation hardening mechanisms.
Resonant acoustic evaluation of mechanical properties of masonry mortars
HighlightsAcoustic tests showed lower dispersion and higher elastic moduli than static tests.EDynamic showed a mutual correlation with fc and EStatic.Mixes with greater amount of lime had lower strength and much higher deformability.Lime had a strong influence in the variation of mechanical properties with age.Mortar with lime showed a behavior over time influenced by hydration and carbonation.
AbstractThis study aims to establish relationships between dynamic and static mechanical properties for masonry mortars containing lime. An experimental research was conducted with four mortar mixes of different compositions. Acoustic and compression tests were performed at different ages. Acoustic tests showed lower dispersion and higher elastic moduli than static tests. A good relationship between them was found assuming a power law (R2=0.966). Dynamic elastic modulus showed a mutual correlation with compressive strength and static elastic modulus (R2=0.982). A new equation was proposed to represent mechanical properties vs. age considering the coupling between the hydration and carbonation hardening mechanisms.
Resonant acoustic evaluation of mechanical properties of masonry mortars
Haach, Vladimir G. (author) / Carrazedo, Ricardo (author) / Oliveira, Luciane M.F. (author)
Construction and Building Materials ; 152 ; 494-505
2017-07-02
12 pages
Article (Journal)
Electronic Resource
English
Acoustic tests , Elastic modulus , Mortar , Lime , Masonry
Resonant acoustic evaluation of mechanical properties of masonry mortars
| British Library Online Contents | 2017
Resonant acoustic evaluation of mechanical properties of masonry mortars
| British Library Online Contents | 2017
Resonant acoustic evaluation of mechanical properties of masonry mortars
| British Library Online Contents | 2017
Resonant acoustic evaluation of mechanical properties of masonry mortars
| Online Contents | 2017
Mechanical Properties of Masonry Clay Units and Mortars
| British Library Conference Proceedings | 1996