Effect of Elastomeric Expandable Additive on Compressive Strength and Linear Expansion of Fly-Ash-Based Strength-Enhanced Geopolymer Cement for Shrinkage-Resistant Oil-Well Cementing
The present study aimed to investigate the effect of an expandable additive on the compressive strength and linear expansion of geopolymer cement, which is an alternative to ordinary Portland cement, for oil-well cementing. Fly-ash-based geopolymer cement samples, with the addition of slag cement as...
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MDPI AG
2022-02-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/12/4/1897 |
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| author | Siti Humairah Abd Rahman Syed Ahmad Farhan Yon Azwa Sazali Luqmanul Hakim Shafiee Nadzhratul Husna Afif Izwan Abd Hamid Nasir Shafiq Nurul Nazmin Zulkarnain Mohd Firdaus Habarudin |
| author_facet | Siti Humairah Abd Rahman Syed Ahmad Farhan Yon Azwa Sazali Luqmanul Hakim Shafiee Nadzhratul Husna Afif Izwan Abd Hamid Nasir Shafiq Nurul Nazmin Zulkarnain Mohd Firdaus Habarudin |
| author_sort | Siti Humairah Abd Rahman |
| collection | DOAJ |
| description | The present study aimed to investigate the effect of an expandable additive on the compressive strength and linear expansion of geopolymer cement, which is an alternative to ordinary Portland cement, for oil-well cementing. Fly-ash-based geopolymer cement samples, with the addition of slag cement as a strength enhancer, were prepared by using an elastomeric expandable additive (<i>R</i>-additive), which consists of styrene–butadiene rubber with a specific gravity of 0.945, at concentrations of 10%, 15%, 20% and 25% by weight of the solid blend, and cured in a water bath at 60 °C and atmospheric pressure, and a curing chamber at 90 °C and 3000 psi, or approximately 20.68 MPa. Mixability, amount of free water and slurry density were studied, and the effects of the concentration of <i>R</i>-additive on the compressive strength (<i>F</i>) and linear expansion (∆<i>l/l</i><sub>0</sub>) of the samples were analyzed. When cured at 60 °C and atmospheric pressure, the highest <i>F</i> of 15.01 MPa was obtained when the concentration of <i>R</i>-additive was 10%, while the highest ∆<i>l/l</i><sub>0</sub> of 0.9985% was obtained when the concentration of <i>R</i>-additive was 25%. An increase in the curing temperature and pressure to 90 °C and 3000 psi (≈20.68 MPa) resulted in the reduction of <i>F</i> from 15.01 to 14.62 MPa and from 10.33 to 9.61 MPa, and the increase in ∆<i>l/l</i><sub>0</sub> from 0.52% to 0.63%, and from 0.99% to 1.32%, when the concentrations of <i>R</i>-additive were 10% and 25%, respectively. The findings suggest that the formulations adopted, which contain <i>R</i>-additive at concentrations ranging from 10% to 25%, fulfilled the requirements of the oil and gas industry. |
| first_indexed | 2024-03-09T22:42:24Z |
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| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-09T22:42:24Z |
| publishDate | 2022-02-01 |
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| spelling | doaj.art-3c0e893f6c5a472587e6080298ded32d2023-11-23T18:35:54ZengMDPI AGApplied Sciences2076-34172022-02-01124189710.3390/app12041897Effect of Elastomeric Expandable Additive on Compressive Strength and Linear Expansion of Fly-Ash-Based Strength-Enhanced Geopolymer Cement for Shrinkage-Resistant Oil-Well CementingSiti Humairah Abd Rahman0Syed Ahmad Farhan1Yon Azwa Sazali2Luqmanul Hakim Shafiee3Nadzhratul Husna4Afif Izwan Abd Hamid5Nasir Shafiq6Nurul Nazmin Zulkarnain7Mohd Firdaus Habarudin8PETRONAS Research Sdn. Bhd., Bandar Baru Bangi 43000, MalaysiaInstitute of Self-Sustainable Building for Smart Living, Universiti Teknologi PETRONAS, Seri Iskandar 32610, MalaysiaPETRONAS Research Sdn. Bhd., Bandar Baru Bangi 43000, MalaysiaPETRONAS Research Sdn. Bhd., Bandar Baru Bangi 43000, MalaysiaInstitute of Autonomous System for Autonomous Facilities, Universiti Teknologi PETRONAS, Seri Iskandar 32610, MalaysiaInstitute of Self-Sustainable Building for Smart Living, Universiti Teknologi PETRONAS, Seri Iskandar 32610, MalaysiaInstitute of Self-Sustainable Building for Smart Living, Universiti Teknologi PETRONAS, Seri Iskandar 32610, MalaysiaPETRONAS Research Sdn. Bhd., Bandar Baru Bangi 43000, MalaysiaPETRONAS Research Sdn. Bhd., Bandar Baru Bangi 43000, MalaysiaThe present study aimed to investigate the effect of an expandable additive on the compressive strength and linear expansion of geopolymer cement, which is an alternative to ordinary Portland cement, for oil-well cementing. Fly-ash-based geopolymer cement samples, with the addition of slag cement as a strength enhancer, were prepared by using an elastomeric expandable additive (<i>R</i>-additive), which consists of styrene–butadiene rubber with a specific gravity of 0.945, at concentrations of 10%, 15%, 20% and 25% by weight of the solid blend, and cured in a water bath at 60 °C and atmospheric pressure, and a curing chamber at 90 °C and 3000 psi, or approximately 20.68 MPa. Mixability, amount of free water and slurry density were studied, and the effects of the concentration of <i>R</i>-additive on the compressive strength (<i>F</i>) and linear expansion (∆<i>l/l</i><sub>0</sub>) of the samples were analyzed. When cured at 60 °C and atmospheric pressure, the highest <i>F</i> of 15.01 MPa was obtained when the concentration of <i>R</i>-additive was 10%, while the highest ∆<i>l/l</i><sub>0</sub> of 0.9985% was obtained when the concentration of <i>R</i>-additive was 25%. An increase in the curing temperature and pressure to 90 °C and 3000 psi (≈20.68 MPa) resulted in the reduction of <i>F</i> from 15.01 to 14.62 MPa and from 10.33 to 9.61 MPa, and the increase in ∆<i>l/l</i><sub>0</sub> from 0.52% to 0.63%, and from 0.99% to 1.32%, when the concentrations of <i>R</i>-additive were 10% and 25%, respectively. The findings suggest that the formulations adopted, which contain <i>R</i>-additive at concentrations ranging from 10% to 25%, fulfilled the requirements of the oil and gas industry.https://www.mdpi.com/2076-3417/12/4/1897compressive strengthexpandable additivefly ashgeopolymer cementlinear expansionordinary Portland cement |
| spellingShingle | Siti Humairah Abd Rahman Syed Ahmad Farhan Yon Azwa Sazali Luqmanul Hakim Shafiee Nadzhratul Husna Afif Izwan Abd Hamid Nasir Shafiq Nurul Nazmin Zulkarnain Mohd Firdaus Habarudin Effect of Elastomeric Expandable Additive on Compressive Strength and Linear Expansion of Fly-Ash-Based Strength-Enhanced Geopolymer Cement for Shrinkage-Resistant Oil-Well Cementing Applied Sciences compressive strength expandable additive fly ash geopolymer cement linear expansion ordinary Portland cement |
| title | Effect of Elastomeric Expandable Additive on Compressive Strength and Linear Expansion of Fly-Ash-Based Strength-Enhanced Geopolymer Cement for Shrinkage-Resistant Oil-Well Cementing |
| title_full | Effect of Elastomeric Expandable Additive on Compressive Strength and Linear Expansion of Fly-Ash-Based Strength-Enhanced Geopolymer Cement for Shrinkage-Resistant Oil-Well Cementing |
| title_fullStr | Effect of Elastomeric Expandable Additive on Compressive Strength and Linear Expansion of Fly-Ash-Based Strength-Enhanced Geopolymer Cement for Shrinkage-Resistant Oil-Well Cementing |
| title_full_unstemmed | Effect of Elastomeric Expandable Additive on Compressive Strength and Linear Expansion of Fly-Ash-Based Strength-Enhanced Geopolymer Cement for Shrinkage-Resistant Oil-Well Cementing |
| title_short | Effect of Elastomeric Expandable Additive on Compressive Strength and Linear Expansion of Fly-Ash-Based Strength-Enhanced Geopolymer Cement for Shrinkage-Resistant Oil-Well Cementing |
| title_sort | effect of elastomeric expandable additive on compressive strength and linear expansion of fly ash based strength enhanced geopolymer cement for shrinkage resistant oil well cementing |
| topic | compressive strength expandable additive fly ash geopolymer cement linear expansion ordinary Portland cement |
| url | https://www.mdpi.com/2076-3417/12/4/1897 |
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