TY - GEN
T1 - Analysis of Change of Physical Properties of Organic Repair Products due to Fire Exposition
AU - Menéndez, Esperanza
AU - Imamoto, Kei Ichi
AU - Gettu, Ravindra
AU - Noguchi, Takafumi
AU - Hairon, Recino
N1 - Publisher Copyright:
© The authors.
PY - 2020
Y1 - 2020
N2 - Organic repair products for concrete can be exposed to accidental incidents, like fire. The increase of temperature produces a modification in some of their properties. In general, these types of repair products have organic fibers to increase their tixotropic properties, but they are more sensible to the high temperature than the Portland cement or aggregates. In order to analyze the behavior of organic repair mortars with temperature three types of repair mortars are studied. These repair products have the organic components composed by acetate fiber of polyvinyl like Vinyl Acetate Acrylate (VAA), Copolymer of Vinyl Acetate Vinyl Versatate (VeoVA) and Acrylic polymers fibres. The repair products are tested increasing the temperature from 1.7°C /min until 200°C, 400°C or 600°C respectively during 20 minutes. After that, the samples are cooled in four different cooling conditions two of them slow and two others fast, and with and without oxygen. These conditions are used in order to simulate the different conditions that can occur during the cooling after fire. After the testing the visual aspect, the color and brightness and the open porosity is analyzed in each condition of test. In this work the relationship between the temperature of exposition, the cooling conditions and the change in some physical properties are studied.
AB - Organic repair products for concrete can be exposed to accidental incidents, like fire. The increase of temperature produces a modification in some of their properties. In general, these types of repair products have organic fibers to increase their tixotropic properties, but they are more sensible to the high temperature than the Portland cement or aggregates. In order to analyze the behavior of organic repair mortars with temperature three types of repair mortars are studied. These repair products have the organic components composed by acetate fiber of polyvinyl like Vinyl Acetate Acrylate (VAA), Copolymer of Vinyl Acetate Vinyl Versatate (VeoVA) and Acrylic polymers fibres. The repair products are tested increasing the temperature from 1.7°C /min until 200°C, 400°C or 600°C respectively during 20 minutes. After that, the samples are cooled in four different cooling conditions two of them slow and two others fast, and with and without oxygen. These conditions are used in order to simulate the different conditions that can occur during the cooling after fire. After the testing the visual aspect, the color and brightness and the open porosity is analyzed in each condition of test. In this work the relationship between the temperature of exposition, the cooling conditions and the change in some physical properties are studied.
KW - Color change
KW - Fire resistance test
KW - Open porosity
KW - Organic repair mortar
UR - http://www.scopus.com/inward/record.url?scp=85125778142&partnerID=8YFLogxK
U2 - 10.23967/dbmc.2020.193
DO - 10.23967/dbmc.2020.193
M3 - Conference contribution
AN - SCOPUS:85125778142
T3 - Current Topics and Trends on Durability of Building Materials and Components - Proceedings of the 15th International Conference on Durability of Building Materials and Components, DBMC 2020
SP - 145
EP - 152
BT - Current Topics and Trends on Durability of Building Materials and Components - Proceedings of the 15th International Conference on Durability of Building Materials and Components, DBMC 2020
A2 - Serrat, Carles
A2 - Casas, Joan Ramon
A2 - Gibert i Armengol, Vicente
PB - International Center for Numerical Methods in Engineering
T2 - 15th International Conference on Durability of Building Materials and Components, DBMC 2020
Y2 - 20 October 2020 through 23 October 2020
ER -