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Research on basic mechanical properties of different modulus alkaline excited ECC

The effect of the alkali activator modulus on the mechanical properties and microstructure of two types of fiber-reinforced engineering cementitious composites (alkali-excited ECC) with desert sand as fine aggregate was studied. The alkali activator was prepared by a certain proportion of NaOH and s...

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Main Authors: Che, Jialing, Yang, Renze, Wang, Jun, Liu, Haifeng, Hu, Yun xiang, Doh, Shu Ing
Format: Article
Language:English
English
Published: Elsevier Ltd 2022
Subjects:
T Technology (General)
TA Engineering (General). Civil engineering (General)
Online Access:http://umpir.ump.edu.my/id/eprint/42733/1/Research%20on%20basic%20mechanical%20properties%20of%20different%20modulus.pdf
http://umpir.ump.edu.my/id/eprint/42733/2/Research%20on%20basic%20mechanical%20properties%20of%20different%20modulus%20alkaline%20excited%20ECC_ABS.pdf
http://umpir.ump.edu.my/id/eprint/42733/
https://doi.org/10.1016/j.pce.2022.103233
https://doi.org/10.1016/j.pce.2022.103233
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spelling my.ump.umpir.427332025-01-07T03:58:23Z http://umpir.ump.edu.my/id/eprint/42733/ Research on basic mechanical properties of different modulus alkaline excited ECC Che, Jialing Yang, Renze Wang, Jun Liu, Haifeng Hu, Yun xiang Doh, Shu Ing T Technology (General) TA Engineering (General). Civil engineering (General) The effect of the alkali activator modulus on the mechanical properties and microstructure of two types of fiber-reinforced engineering cementitious composites (alkali-excited ECC) with desert sand as fine aggregate was studied. The alkali activator was prepared by a certain proportion of NaOH and sodium silicate mixture, and the mechanical performance indexes were used for analysis, including compressive/tensile/flexural strength, Poisson's ratio and elastic modulus, flexural toughness ratio and energy performance index (PSH). The results showed that the appropriate alkali activator modulus was conducive to improving ECC mechanical performance. The indexes of the high water-to-binder ratio alkali-excited ECC and the low water-to-binder ratio alkali-excited ECC were the best when the alkali activator modulus of 1.5 and 2, respectively. Under the same modulus of alkali-activator, the compressive and flexural strengths of two types of alkali-excited ECC specimens increased with age, and PSH of low water-to-binder ratio alkali-excited ECC specimens increased with age. SEM results showed that after the action of alkali activator, the substrate surface of alkali-excited ECC was attached with colloidal substances. Combined with EDS and XRD hydration analysis, the hydration products were mainly C–S–H, C-A-H and Ettringite. Elsevier Ltd 2022-12 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/42733/1/Research%20on%20basic%20mechanical%20properties%20of%20different%20modulus.pdf pdf en http://umpir.ump.edu.my/id/eprint/42733/2/Research%20on%20basic%20mechanical%20properties%20of%20different%20modulus%20alkaline%20excited%20ECC_ABS.pdf Che, Jialing and Yang, Renze and Wang, Jun and Liu, Haifeng and Hu, Yun xiang and Doh, Shu Ing (2022) Research on basic mechanical properties of different modulus alkaline excited ECC. Physics and Chemistry of the Earth, 128 (103233). pp. 1-11. ISSN 1474-7065. (Published) https://doi.org/10.1016/j.pce.2022.103233 https://doi.org/10.1016/j.pce.2022.103233
institution Universiti Malaysia Pahang Al-Sultan Abdullah
building UMPSA Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang Al-Sultan Abdullah
content_source UMPSA Institutional Repository
url_provider http://umpir.ump.edu.my/
language English
English
topic T Technology (General)
TA Engineering (General). Civil engineering (General)
spellingShingle T Technology (General)
TA Engineering (General). Civil engineering (General)
Che, Jialing
Yang, Renze
Wang, Jun
Liu, Haifeng
Hu, Yun xiang
Doh, Shu Ing
Research on basic mechanical properties of different modulus alkaline excited ECC
description The effect of the alkali activator modulus on the mechanical properties and microstructure of two types of fiber-reinforced engineering cementitious composites (alkali-excited ECC) with desert sand as fine aggregate was studied. The alkali activator was prepared by a certain proportion of NaOH and sodium silicate mixture, and the mechanical performance indexes were used for analysis, including compressive/tensile/flexural strength, Poisson's ratio and elastic modulus, flexural toughness ratio and energy performance index (PSH). The results showed that the appropriate alkali activator modulus was conducive to improving ECC mechanical performance. The indexes of the high water-to-binder ratio alkali-excited ECC and the low water-to-binder ratio alkali-excited ECC were the best when the alkali activator modulus of 1.5 and 2, respectively. Under the same modulus of alkali-activator, the compressive and flexural strengths of two types of alkali-excited ECC specimens increased with age, and PSH of low water-to-binder ratio alkali-excited ECC specimens increased with age. SEM results showed that after the action of alkali activator, the substrate surface of alkali-excited ECC was attached with colloidal substances. Combined with EDS and XRD hydration analysis, the hydration products were mainly C–S–H, C-A-H and Ettringite.
format Article
author Che, Jialing
Yang, Renze
Wang, Jun
Liu, Haifeng
Hu, Yun xiang
Doh, Shu Ing
author_facet Che, Jialing
Yang, Renze
Wang, Jun
Liu, Haifeng
Hu, Yun xiang
Doh, Shu Ing
author_sort Che, Jialing
title Research on basic mechanical properties of different modulus alkaline excited ECC
title_short Research on basic mechanical properties of different modulus alkaline excited ECC
title_full Research on basic mechanical properties of different modulus alkaline excited ECC
title_fullStr Research on basic mechanical properties of different modulus alkaline excited ECC
title_full_unstemmed Research on basic mechanical properties of different modulus alkaline excited ECC
title_sort research on basic mechanical properties of different modulus alkaline excited ecc
publisher Elsevier Ltd
publishDate 2022
url http://umpir.ump.edu.my/id/eprint/42733/1/Research%20on%20basic%20mechanical%20properties%20of%20different%20modulus.pdf
http://umpir.ump.edu.my/id/eprint/42733/2/Research%20on%20basic%20mechanical%20properties%20of%20different%20modulus%20alkaline%20excited%20ECC_ABS.pdf
http://umpir.ump.edu.my/id/eprint/42733/
https://doi.org/10.1016/j.pce.2022.103233
https://doi.org/10.1016/j.pce.2022.103233
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score 13.235362

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