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A platform for research: civil engineering, architecture and urbanism
Textile-reinforced mortar: Durability in salty environment
https://orcid.org/0000-0003-0624-9117
https://orcid.org/0000-0003-0025-0045
Abstract Reinforcing a fine-grained cement-based matrix with a textile fabric is an emerging approach in civil engineering, termed Textile Reinforced Mortar (TRM). We propose to load the ultra-high-performance matrix with nano-additives, i.e., a crystalline admixture (CA) or CA plus alumina nanofibers. The mix was designed to yield flow values - in the fresh state - suitable for retrofitting, and to provide high compressive strength. Examination of the durability of the TRM elements exposed to salty environments unexpectedly showed enhanced tensile strength (<81%). This is owing to the growth of salt crystals at the matrix–textile interface resulting in stronger bond strength, as imaged by scanning electron microscopy, identified by acoustic emission measurements, and validated by pull-off tests.
Highlights The developed textile reinforced mortar composites were durable in a salty environment. Nano-additives enhanced the mortar's compressive strength and the stress at the first crack of the textile reinforced mortar. Textile–mortar matrix bond strength was enhanced in samples cured in NaCl solution. Salt-cured vs. tap-water-cured textile reinforced mortars showed more fine cracks with higher energy.
Textile-reinforced mortar: Durability in salty environment
https://orcid.org/0000-0003-0624-9117
https://orcid.org/0000-0003-0025-0045
Abstract Reinforcing a fine-grained cement-based matrix with a textile fabric is an emerging approach in civil engineering, termed Textile Reinforced Mortar (TRM). We propose to load the ultra-high-performance matrix with nano-additives, i.e., a crystalline admixture (CA) or CA plus alumina nanofibers. The mix was designed to yield flow values - in the fresh state - suitable for retrofitting, and to provide high compressive strength. Examination of the durability of the TRM elements exposed to salty environments unexpectedly showed enhanced tensile strength (<81%). This is owing to the growth of salt crystals at the matrix–textile interface resulting in stronger bond strength, as imaged by scanning electron microscopy, identified by acoustic emission measurements, and validated by pull-off tests.
Highlights The developed textile reinforced mortar composites were durable in a salty environment. Nano-additives enhanced the mortar's compressive strength and the stress at the first crack of the textile reinforced mortar. Textile–mortar matrix bond strength was enhanced in samples cured in NaCl solution. Salt-cured vs. tap-water-cured textile reinforced mortars showed more fine cracks with higher energy.
Textile-reinforced mortar: Durability in salty environment
https://orcid.org/0000-0003-0624-9117
https://orcid.org/0000-0003-0025-0045
Abstract Reinforcing a fine-grained cement-based matrix with a textile fabric is an emerging approach in civil engineering, termed Textile Reinforced Mortar (TRM). We propose to load the ultra-high-performance matrix with nano-additives, i.e., a crystalline admixture (CA) or CA plus alumina nanofibers. The mix was designed to yield flow values - in the fresh state - suitable for retrofitting, and to provide high compressive strength. Examination of the durability of the TRM elements exposed to salty environments unexpectedly showed enhanced tensile strength (<81%). This is owing to the growth of salt crystals at the matrix–textile interface resulting in stronger bond strength, as imaged by scanning electron microscopy, identified by acoustic emission measurements, and validated by pull-off tests.
Highlights The developed textile reinforced mortar composites were durable in a salty environment. Nano-additives enhanced the mortar's compressive strength and the stress at the first crack of the textile reinforced mortar. Textile–mortar matrix bond strength was enhanced in samples cured in NaCl solution. Salt-cured vs. tap-water-cured textile reinforced mortars showed more fine cracks with higher energy.
Textile-reinforced mortar: Durability in salty environment
Alatawna, Amr (author) / Nahum, Lior (author) / Sripada, Raghu (author) / Birenboim, Matan (author) / Regev, Oren (author) / Peled, Alva (author)
2022-04-06
Article (Journal)
Electronic Resource
English
INVESTIGATION ON METHODS FOR IMPROVING DURABILITY OF REINFORCED CONCRETE UNDER SALTY CONDITION
| British Library Conference Proceedings | 2002
TENSILE CHARACTERIZATION OF TEXTILE REINFORCED MORTAR
| TIBKAT | 2020