A parametric study for the structural assessment of multi-ring masonry arches considering influencing factors
Session
Civil Engineering, Infrastructure and Environment
Description
The use of sustainable materials in construction has become essential due to their positive impact on the environment. In this study, binary and ternary blended mixtures of micro silica fume (SF) and nano silicon dioxide (NS) concrete mixes were employed. In order to investigate the impact of these materials on the mechanical properties and to improve the durability of concrete. Two groups of mixtures, binary and ternary blended mixes, were used as well as the control mix. In the first group, micro-SF was replaced with 3.5% and 7% by mass of ordinary Portland cement. Whereas, in a ternary blended group, micro-SF and nano silicon dioxide (NS) were replaced with 3.5% and 1%, respectively, by mass of ordinary Portland cement. A slump test was also performed to assess the fresh concrete properties of the mixes. Compressive and split tensile strengths were evaluated at different curing ages. As well, water absorption test, rapid chloride migration test, and chloride penetration test were carried out to investigate the durability properties. Results show that the replacement of cement by SF in binary blended and ternary blended mixtures reduced the workability of concrete mixes and increased the water demand. On the other hand, a considerable increase in the compressive strength, tensile strength, and durability properties of concrete was recorded. Also, the replacement of cement by 7% SF achieved significant improvements in the mechanical and durability properties of concrete.
Keywords:
multi-ring arches, ring separation, limit analysis, sliding mechanism
Proceedings Editor
Edmond Hajrizi
ISBN
978-9951-550-95-6
Location
UBT Lipjan, Kosovo
Start Date
28-10-2023 8:00 AM
End Date
29-10-2023 6:00 PM
DOI
10.33107/ubt-ic.2023.375
Recommended Citation
Anssari, Nora AL and Ameeri, Abbas AL, "A parametric study for the structural assessment of multi-ring masonry arches considering influencing factors" (2023). UBT International Conference. 41.
https://knowledgecenter.ubt-uni.net/conference/IC/civil/41
A parametric study for the structural assessment of multi-ring masonry arches considering influencing factors
UBT Lipjan, Kosovo
The use of sustainable materials in construction has become essential due to their positive impact on the environment. In this study, binary and ternary blended mixtures of micro silica fume (SF) and nano silicon dioxide (NS) concrete mixes were employed. In order to investigate the impact of these materials on the mechanical properties and to improve the durability of concrete. Two groups of mixtures, binary and ternary blended mixes, were used as well as the control mix. In the first group, micro-SF was replaced with 3.5% and 7% by mass of ordinary Portland cement. Whereas, in a ternary blended group, micro-SF and nano silicon dioxide (NS) were replaced with 3.5% and 1%, respectively, by mass of ordinary Portland cement. A slump test was also performed to assess the fresh concrete properties of the mixes. Compressive and split tensile strengths were evaluated at different curing ages. As well, water absorption test, rapid chloride migration test, and chloride penetration test were carried out to investigate the durability properties. Results show that the replacement of cement by SF in binary blended and ternary blended mixtures reduced the workability of concrete mixes and increased the water demand. On the other hand, a considerable increase in the compressive strength, tensile strength, and durability properties of concrete was recorded. Also, the replacement of cement by 7% SF achieved significant improvements in the mechanical and durability properties of concrete.