Bonding strength characteristics of FA-based geopolymer paste as a repair material when applied on OPC substrate
Link to publisher's homepage https://www.mdpi.com/
Saved in:
| Main Authors: | , , , , , , , |
|---|---|
| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2020
|
| Subjects: | |
| Online Access: | http://dspace.unimap.edu.my:80/xmlui/handle/123456789/67086 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| id |
my.unimap-67086 |
|---|---|
| record_format |
dspace |
| spelling |
my.unimap-670862020-09-11T00:57:18Z Bonding strength characteristics of FA-based geopolymer paste as a repair material when applied on OPC substrate Warid Wazien, Ahmad Zailani Bouaissi, Aissa Mohd Mustafa Al Bakri, Abdullah Rafiza, Abd Razak Yoriya, Sorachon Mohd Arif Anuar, Mohd Salleh Mohd Remy Rozainy, M. A. Z. Hamzah, Fansuri aissabouaissi@yahoo.fr mustafa_albakri@unimap.edu.my warid.wazien92@yahoo.com arifanuar@unimap.edu.my rafizarazak@unimap.edu.my Fly ash Geopolymer repair material Compressive strength Bonding strength Bonding zone Link to publisher's homepage https://www.mdpi.com/ This investigative study aims to study the mechanical and morphological properties of fly ash (FA)-based geopolymer paste as a repair material when applied on ordinary Portland cement (OPC) overlay concrete. The first part of this study investigates the optimal mix design of FA-based geopolymer paste with various NaOH concentrations of 8, 10, 12, and 14 M, which were used later as a repair material. The second part studies the bonding strength using a slant shear test between the geopolymer repair material and OPC substrate concrete. The results showed that a shorter setting time corresponds to the higher NaOH molarity, within the range of 53 and 30 min at 8 and 14 M, respectively. The compressive strength of FA-based geopolymer paste was found to reach 92.5 MPa at 60 days. Also, from the slant shear test results, prism specimens with 125 mm length and 50 mm wide have a large bond strength of 11 MPa at 12 M. The scanning electron microscopy/energy-dispersive X-ray (SEM/EDX) analysis showed that the OPC substrate has a significant effect on slant shear bond strength, where the presence of free cations of Ca2+ on the OPC substrate surface contributed to the formation of calcium alumina-silicate hydrate gel (C-A-S-H) by building various cross-links of Ca-O-Si. 2020-09-11T00:57:18Z 2020-09-11T00:57:18Z 2020-05 Article Applied Science, vol.10(9), 2020, pages 14 2076-3417 (print) http://dspace.unimap.edu.my:80/xmlui/handle/123456789/67086 https://www.mdpi.com/ https://doi.org/10.3390/app10093321 en MDPI AG |
| institution |
Universiti Malaysia Perlis |
| building |
UniMAP Library |
| collection |
Institutional Repository |
| continent |
Asia |
| country |
Malaysia |
| content_provider |
Universiti Malaysia Perlis |
| content_source |
UniMAP Library Digital Repository |
| url_provider |
http://dspace.unimap.edu.my/ |
| language |
English |
| topic |
Fly ash Geopolymer repair material Compressive strength Bonding strength Bonding zone |
| spellingShingle |
Fly ash Geopolymer repair material Compressive strength Bonding strength Bonding zone Warid Wazien, Ahmad Zailani Bouaissi, Aissa Mohd Mustafa Al Bakri, Abdullah Rafiza, Abd Razak Yoriya, Sorachon Mohd Arif Anuar, Mohd Salleh Mohd Remy Rozainy, M. A. Z. Hamzah, Fansuri Bonding strength characteristics of FA-based geopolymer paste as a repair material when applied on OPC substrate |
| description |
Link to publisher's homepage https://www.mdpi.com/ |
| author2 |
aissabouaissi@yahoo.fr |
| author_facet |
aissabouaissi@yahoo.fr Warid Wazien, Ahmad Zailani Bouaissi, Aissa Mohd Mustafa Al Bakri, Abdullah Rafiza, Abd Razak Yoriya, Sorachon Mohd Arif Anuar, Mohd Salleh Mohd Remy Rozainy, M. A. Z. Hamzah, Fansuri |
| format |
Article |
| author |
Warid Wazien, Ahmad Zailani Bouaissi, Aissa Mohd Mustafa Al Bakri, Abdullah Rafiza, Abd Razak Yoriya, Sorachon Mohd Arif Anuar, Mohd Salleh Mohd Remy Rozainy, M. A. Z. Hamzah, Fansuri |
| author_sort |
Warid Wazien, Ahmad Zailani |
| title |
Bonding strength characteristics of FA-based geopolymer paste as a repair material when applied on OPC substrate |
| title_short |
Bonding strength characteristics of FA-based geopolymer paste as a repair material when applied on OPC substrate |
| title_full |
Bonding strength characteristics of FA-based geopolymer paste as a repair material when applied on OPC substrate |
| title_fullStr |
Bonding strength characteristics of FA-based geopolymer paste as a repair material when applied on OPC substrate |
| title_full_unstemmed |
Bonding strength characteristics of FA-based geopolymer paste as a repair material when applied on OPC substrate |
| title_sort |
bonding strength characteristics of fa-based geopolymer paste as a repair material when applied on opc substrate |
| publisher |
MDPI AG |
| publishDate |
2020 |
| url |
http://dspace.unimap.edu.my:80/xmlui/handle/123456789/67086 |
| _version_ |
1678594078814502912 |
| score |
13.154949 |