| Records |
Author  |
Avudaiappan, S.; Cendoya, P.; Arunachalam, K.P.; Maureira-Carsalade, N.; Canales, C.; Amran, M.; Parra, P.F. |
| Title |
Innovative Use of Single-Use Face Mask Fibers for the Production of a Sustainable Cement Mortar |
Type |
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| Year |
2023 |
Publication |
Journal of Composites Science |
Abbreviated Journal |
J. Compos. Sci. |
| Volume |
7 |
Issue |
6 |
Pages |
214 |
| Keywords |
cement; face mask; polypropylene; UPV; sorptivity |
| Abstract |
Due to the COVID-19 epidemic, biomedical waste management has overwhelmed both developed and developing nations. It is now a critical issue that has to be addressed with minimal possible adverse impact on the environment. This study introduced a technique of recycling face masks into polypropylene fibers for use in concrete. This proposed recycling process provides complete disinfection of contaminated clinical waste and offers the opportunity to transform the characteristics of an end product. Microfibers manufactured from recycled medical masks were subjected to testing. According to the results, polypropylene is the primary component of this research program. Two batches of concrete were made, one with the inclusion of masks as polypropylene fibers and another that performed as a control mix. The modified mortar was compared to the control mix in split tensile, flexure, compressive strength, and water absorption. Compressive strength was found to be improved by about 17%, and tensile strength to be increased by around 22% when mask fibers were incorporated. This research introduced a novel approach for disposing of waste masks and established the preliminary viability of upcycling trash face masks towards mortar concrete production. |
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Edition |
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| ISSN |
2504-477X |
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| Notes |
WOS:001017485400001 |
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| Call Number |
UAI @ alexi.delcanto @ |
Serial |
1826 |
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| Author |
Puentes, J.; Parra, P.F.; Magna-Verdugo, C.E.; Cendoya, P.; Avudaiappan, S. |
| Title |
Effects of Using High-Strength Reinforcement in the Seismic Performance of a Tall RC Shear Wall Building |
Type |
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| Year |
2023 |
Publication |
Buildings |
Abbreviated Journal |
Buildings |
| Volume |
13 |
Issue |
4 |
Pages |
960 |
| Keywords |
high-strength reinforcement; shear wall; pushover analysis; fragility curves; SPO2IDA |
| Abstract |
Chile's reinforced concrete (RC) design is based on ACI 318-08, where high-strength reinforcement is not allowed in seismic force-resistant members. In 2019, new requirements adopted by ACI 318 permitted the incorporation of high-strength reinforcement in walls. This study compared the seismic performance of two Chilean 20-story residential buildings on soft soil, one designed with traditional Grade 60 and the other with high-strength Grade 80 reinforcement. The performance was assessed in terms of the probability of exceeding the ASCE 41 limit states during a 50-year lifecycle. Analyses showed that both buildings had similar seismic performance. However, the reduction in reinforcement in the Grade 80 building was close to 18%. It is concluded that using high-strength reinforcement in a typical wall building implies a significant reduction in the reinforcement used without affecting the seismic performance. |
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Edition |
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| ISSN |
2075-5309 |
ISBN |
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Conference |
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| Notes |
WOS:000982798100001 |
Approved |
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| Call Number |
UAI @ alexi.delcanto @ |
Serial |
1788 |
| Permanent link to this record |
