Mechanical properties and freeze-thaw resistance of lightweight aggregate concrete using artificial clay aggregate
This work intends to make structural lightweight aggregate concrete by using artificial expanded clay aggregate with different replacement levels from normal coarse aggregate and improve it with a high-performance superplasticizer to increase its strength. The mechanical characteristics covered in t...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2022-04-01
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| Series: | Open Engineering |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/eng-2022-0019 |
| _version_ | 1828381365509292032 |
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| author | Al-Dikheeli Mohammed Riyadh Thaib Hasanein M. Alasadi Layth AbdulRasool |
| author_facet | Al-Dikheeli Mohammed Riyadh Thaib Hasanein M. Alasadi Layth AbdulRasool |
| author_sort | Al-Dikheeli Mohammed Riyadh |
| collection | DOAJ |
| description | This work intends to make structural lightweight aggregate concrete by using artificial expanded clay aggregate with different replacement levels from normal coarse aggregate and improve it with a high-performance superplasticizer to increase its strength. The mechanical characteristics covered in the present work were compressive strength, flexural strength, and splitting tensile strength in addition to freezing and thawing resistance. Different densities were found for all mixes ranging between normal and lightweight concrete and that depends on the replacement of normal aggregate with lightweight aggregates. Mixes with replacement exceeding 25% give compressive strength less than 17 MPa and cannot be regarded as structural lightweight concrete. Modified mixes give higher values of mechanical properties, and also some non-structural lightweight concrete mixes were improved to structural lightweight concrete by using PC-superplasticizer in this study. The research also includes freezing and thawing cycles on reference mixes and lightweight mixes. Lightweight mixes give high durability against freeze-thaw cycles where the reduction in compressive strength was 6.2, 4.6, and 5.5% for 10% rep, 15% rep, and 20% rep mixes, respectively, compared with 32.2% reduction for reference mix. |
| first_indexed | 2024-12-10T04:14:23Z |
| format | Article |
| id | doaj.art-c424e7621b9646d3b3124abf785cfc76 |
| institution | Directory Open Access Journal |
| issn | 2391-5439 |
| language | English |
| last_indexed | 2024-12-10T04:14:23Z |
| publishDate | 2022-04-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Open Engineering |
| spelling | doaj.art-c424e7621b9646d3b3124abf785cfc762022-12-22T02:02:38ZengDe GruyterOpen Engineering2391-54392022-04-0112132333110.1515/eng-2022-0019Mechanical properties and freeze-thaw resistance of lightweight aggregate concrete using artificial clay aggregateAl-Dikheeli Mohammed Riyadh0Thaib Hasanein M.1Alasadi Layth AbdulRasool2Department of Structures and Water Resources, Faculty of Engineering, University of Kufa, Najaf, IraqDepartment of Civil Engineering, Faculty of Engineering, University of Kufa, Najaf, IraqDepartment of Structures and Water Resources, Faculty of Engineering, University of Kufa, Najaf, IraqThis work intends to make structural lightweight aggregate concrete by using artificial expanded clay aggregate with different replacement levels from normal coarse aggregate and improve it with a high-performance superplasticizer to increase its strength. The mechanical characteristics covered in the present work were compressive strength, flexural strength, and splitting tensile strength in addition to freezing and thawing resistance. Different densities were found for all mixes ranging between normal and lightweight concrete and that depends on the replacement of normal aggregate with lightweight aggregates. Mixes with replacement exceeding 25% give compressive strength less than 17 MPa and cannot be regarded as structural lightweight concrete. Modified mixes give higher values of mechanical properties, and also some non-structural lightweight concrete mixes were improved to structural lightweight concrete by using PC-superplasticizer in this study. The research also includes freezing and thawing cycles on reference mixes and lightweight mixes. Lightweight mixes give high durability against freeze-thaw cycles where the reduction in compressive strength was 6.2, 4.6, and 5.5% for 10% rep, 15% rep, and 20% rep mixes, respectively, compared with 32.2% reduction for reference mix.https://doi.org/10.1515/eng-2022-0019lightweight aggregatelightweight concreteflexural strengthfreeze-thaw cycles |
| spellingShingle | Al-Dikheeli Mohammed Riyadh Thaib Hasanein M. Alasadi Layth AbdulRasool Mechanical properties and freeze-thaw resistance of lightweight aggregate concrete using artificial clay aggregate Open Engineering lightweight aggregate lightweight concrete flexural strength freeze-thaw cycles |
| title | Mechanical properties and freeze-thaw resistance of lightweight aggregate concrete using artificial clay aggregate |
| title_full | Mechanical properties and freeze-thaw resistance of lightweight aggregate concrete using artificial clay aggregate |
| title_fullStr | Mechanical properties and freeze-thaw resistance of lightweight aggregate concrete using artificial clay aggregate |
| title_full_unstemmed | Mechanical properties and freeze-thaw resistance of lightweight aggregate concrete using artificial clay aggregate |
| title_short | Mechanical properties and freeze-thaw resistance of lightweight aggregate concrete using artificial clay aggregate |
| title_sort | mechanical properties and freeze thaw resistance of lightweight aggregate concrete using artificial clay aggregate |
| topic | lightweight aggregate lightweight concrete flexural strength freeze-thaw cycles |
| url | https://doi.org/10.1515/eng-2022-0019 |
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