Enhanced ductility and toughness of desert sand engineered cementitious composites

Economical desert sand engineered cementitious composites (DS-ECCs) using a mixture of cement, fly ash, local desert sand, water, low-cost PVA fibers, and chemical additives were developed, aiming for a further enhancement in ductility and toughness. The mechanical behavior of DS-ECCs for two sand s...

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Main Authors: Wang, Dan, Che, Jialing, Liu, Haifeng, Siew Choo, Chin
Format: Article
Language:English
Published: MDPI 2023
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/38357/
http://umpir.ump.edu.my/id/eprint/38357/1/Enhanced%20ductility%20and%20toughness%20of%20desert%20sand%20engineered%20cementitious%20composites.pdf
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author Wang, Dan
Che, Jialing
Liu, Haifeng
Siew Choo, Chin
author_facet Wang, Dan
Che, Jialing
Liu, Haifeng
Siew Choo, Chin
author_sort Wang, Dan
building UMP Institutional Repository
collection Online Access
description Economical desert sand engineered cementitious composites (DS-ECCs) using a mixture of cement, fly ash, local desert sand, water, low-cost PVA fibers, and chemical additives were developed, aiming for a further enhancement in ductility and toughness. The mechanical behavior of DS-ECCs for two sand samples (from Mu Us and Tengger deserts, China) was determined using uniaxial tension/compression tests and three-/four-point bending tests. The results showed that desert sand-based ECCs with the designed mix ratios had better mechanical properties than the river sand-based ones. Compared with the river sand-based ECCs at 28 and 56 day, the DS-ECCs presented superior ultimate tensile and comparable compression strengths. The excellent ductility was characterized by ultimate tensile and compression strains of 3–7% and over 1%, respectively. Meanwhile, the DS-ECCs showed improved flexural properties with outstanding fracture and bending strengths (4–9 kN and 21–30 kN) and toughness. The findings of this study will further strengthen the mechanical performance of DS-ECCs and broaden their engineering applicability.
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spelling ump-383572023-09-04T07:01:37Z http://umpir.ump.edu.my/id/eprint/38357/ Enhanced ductility and toughness of desert sand engineered cementitious composites Wang, Dan Che, Jialing Liu, Haifeng Siew Choo, Chin T Technology (General) TA Engineering (General). Civil engineering (General) Economical desert sand engineered cementitious composites (DS-ECCs) using a mixture of cement, fly ash, local desert sand, water, low-cost PVA fibers, and chemical additives were developed, aiming for a further enhancement in ductility and toughness. The mechanical behavior of DS-ECCs for two sand samples (from Mu Us and Tengger deserts, China) was determined using uniaxial tension/compression tests and three-/four-point bending tests. The results showed that desert sand-based ECCs with the designed mix ratios had better mechanical properties than the river sand-based ones. Compared with the river sand-based ECCs at 28 and 56 day, the DS-ECCs presented superior ultimate tensile and comparable compression strengths. The excellent ductility was characterized by ultimate tensile and compression strains of 3–7% and over 1%, respectively. Meanwhile, the DS-ECCs showed improved flexural properties with outstanding fracture and bending strengths (4–9 kN and 21–30 kN) and toughness. The findings of this study will further strengthen the mechanical performance of DS-ECCs and broaden their engineering applicability. MDPI 2023-06 Article PeerReviewed pdf en cc_by_4 http://umpir.ump.edu.my/id/eprint/38357/1/Enhanced%20ductility%20and%20toughness%20of%20desert%20sand%20engineered%20cementitious%20composites.pdf Wang, Dan and Che, Jialing and Liu, Haifeng and Siew Choo, Chin (2023) Enhanced ductility and toughness of desert sand engineered cementitious composites. Buildings, 13 (1538). pp. 1-16. ISSN 2075-5309. (Published) https://doi.org/10.3390/buildings13061538 https://doi.org/10.3390/buildings13061538
spellingShingle T Technology (General)
TA Engineering (General). Civil engineering (General)
Wang, Dan
Che, Jialing
Liu, Haifeng
Siew Choo, Chin
Enhanced ductility and toughness of desert sand engineered cementitious composites
title Enhanced ductility and toughness of desert sand engineered cementitious composites
title_full Enhanced ductility and toughness of desert sand engineered cementitious composites
title_fullStr Enhanced ductility and toughness of desert sand engineered cementitious composites
title_full_unstemmed Enhanced ductility and toughness of desert sand engineered cementitious composites
title_short Enhanced ductility and toughness of desert sand engineered cementitious composites
title_sort enhanced ductility and toughness of desert sand engineered cementitious composites
topic T Technology (General)
TA Engineering (General). Civil engineering (General)
url http://umpir.ump.edu.my/id/eprint/38357/
http://umpir.ump.edu.my/id/eprint/38357/
http://umpir.ump.edu.my/id/eprint/38357/
http://umpir.ump.edu.my/id/eprint/38357/1/Enhanced%20ductility%20and%20toughness%20of%20desert%20sand%20engineered%20cementitious%20composites.pdf