Empirical Equation for Mechanical Properties of Lightweight Concrete Developed Using Bottom Ash Aggregates
Abstract The mechanical properties of lightweight aggregate concrete developed with the use of bottom ash aggregate (LWAC-BA) as a partial or full replacement of lightweight aggregate differ from those of general lightweight concrete made using natural fine and/or coarse aggregates. The mechanical p...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2022-05-01
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| Series: | International Journal of Concrete Structures and Materials |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s40069-022-00514-y |
| _version_ | 1818007192215748608 |
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| author | Hye-Jin Lee Sanghee Kim Hak-Young Kim Ju-Hyun Mun Keun-Hyeok Yang |
| author_facet | Hye-Jin Lee Sanghee Kim Hak-Young Kim Ju-Hyun Mun Keun-Hyeok Yang |
| author_sort | Hye-Jin Lee |
| collection | DOAJ |
| description | Abstract The mechanical properties of lightweight aggregate concrete developed with the use of bottom ash aggregate (LWAC-BA) as a partial or full replacement of lightweight aggregate differ from those of general lightweight concrete made using natural fine and/or coarse aggregates. The mechanical properties of LWAC-BA are difficult to predict using the existing equations proposed by codes or researchers. Therefore, in this study, empirical equations using nonlinear regression analysis are proposed to predict the mechanical properties of lightweight concrete mixed with bottom ash aggregate, based on the collected measured values from other studies (Yang "Development of replacement technology for ready mixed concrete with bottom ash aggregates", 2020; Kim et al. Appl Sci, 10: e8016, 2020; Constr Build Mater 273: e121998, 2021). The collected data include density, compressive strength, elastic modulus, modulus of rupture, splitting tensile strength, and stress–strain relation of LWAC-BA featuring varying amounts of bottom ash fine aggregate and/or coarse aggregate. The proposed empirical equations for each mechanical characteristic are developed considering the replacement volume of bottom ash fine/coarse aggregates. The mean values of the ratios of the measured to predicted values obtained using the proposed equation range from 1.00 to 1.05, with a standard deviation ranging from 0.002 to 0.013, indicating a reasonably positive agreement. |
| first_indexed | 2024-04-14T05:12:27Z |
| format | Article |
| id | doaj.art-481d91c733fa43aabf2af4cb78dae312 |
| institution | Directory Open Access Journal |
| issn | 1976-0485 2234-1315 |
| language | English |
| last_indexed | 2024-04-14T05:12:27Z |
| publishDate | 2022-05-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | International Journal of Concrete Structures and Materials |
| spelling | doaj.art-481d91c733fa43aabf2af4cb78dae3122022-12-22T02:10:29ZengSpringerOpenInternational Journal of Concrete Structures and Materials1976-04852234-13152022-05-0116111010.1186/s40069-022-00514-yEmpirical Equation for Mechanical Properties of Lightweight Concrete Developed Using Bottom Ash AggregatesHye-Jin Lee0Sanghee Kim1Hak-Young Kim2Ju-Hyun Mun3Keun-Hyeok Yang4Department of Architectural Engineering, Kyonggi UniversityDepartment of Architectural Engineering, Kyonggi UniversityDepartment of Architectural Engineering, Kyonggi UniversityDepartment of Architectural Engineering, Kyonggi UniversityDepartment of Architectural Engineering, Kyonggi UniversityAbstract The mechanical properties of lightweight aggregate concrete developed with the use of bottom ash aggregate (LWAC-BA) as a partial or full replacement of lightweight aggregate differ from those of general lightweight concrete made using natural fine and/or coarse aggregates. The mechanical properties of LWAC-BA are difficult to predict using the existing equations proposed by codes or researchers. Therefore, in this study, empirical equations using nonlinear regression analysis are proposed to predict the mechanical properties of lightweight concrete mixed with bottom ash aggregate, based on the collected measured values from other studies (Yang "Development of replacement technology for ready mixed concrete with bottom ash aggregates", 2020; Kim et al. Appl Sci, 10: e8016, 2020; Constr Build Mater 273: e121998, 2021). The collected data include density, compressive strength, elastic modulus, modulus of rupture, splitting tensile strength, and stress–strain relation of LWAC-BA featuring varying amounts of bottom ash fine aggregate and/or coarse aggregate. The proposed empirical equations for each mechanical characteristic are developed considering the replacement volume of bottom ash fine/coarse aggregates. The mean values of the ratios of the measured to predicted values obtained using the proposed equation range from 1.00 to 1.05, with a standard deviation ranging from 0.002 to 0.013, indicating a reasonably positive agreement.https://doi.org/10.1186/s40069-022-00514-ylightweight concretebottom ashempirical equationmechanical propertiesstress–strain curvenonlinear regression analysis |
| spellingShingle | Hye-Jin Lee Sanghee Kim Hak-Young Kim Ju-Hyun Mun Keun-Hyeok Yang Empirical Equation for Mechanical Properties of Lightweight Concrete Developed Using Bottom Ash Aggregates International Journal of Concrete Structures and Materials lightweight concrete bottom ash empirical equation mechanical properties stress–strain curve nonlinear regression analysis |
| title | Empirical Equation for Mechanical Properties of Lightweight Concrete Developed Using Bottom Ash Aggregates |
| title_full | Empirical Equation for Mechanical Properties of Lightweight Concrete Developed Using Bottom Ash Aggregates |
| title_fullStr | Empirical Equation for Mechanical Properties of Lightweight Concrete Developed Using Bottom Ash Aggregates |
| title_full_unstemmed | Empirical Equation for Mechanical Properties of Lightweight Concrete Developed Using Bottom Ash Aggregates |
| title_short | Empirical Equation for Mechanical Properties of Lightweight Concrete Developed Using Bottom Ash Aggregates |
| title_sort | empirical equation for mechanical properties of lightweight concrete developed using bottom ash aggregates |
| topic | lightweight concrete bottom ash empirical equation mechanical properties stress–strain curve nonlinear regression analysis |
| url | https://doi.org/10.1186/s40069-022-00514-y |
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