Prediction of the Physical-Mechanical Properties of Roller-Compacted Concrete Pavements under Different Service and Mix Conditions Based on Cement and Water Content
Roller-compacted concrete (RCC) for pavements has experienced problems with its physical-mechanical performance over extended periods due to ambient and in situ curing conditions. Accordingly, this study aimed to present multiple regression equations for calculating the physical-mechanical propertie...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-01-01
|
| Series: | Materials |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1944/17/3/549 |
| _version_ | 1797318502008225792 |
|---|---|
| author | Julián Pulecio-Díaz Miguel Sol-Sánchez Fernando Moreno-Navarro |
| author_facet | Julián Pulecio-Díaz Miguel Sol-Sánchez Fernando Moreno-Navarro |
| author_sort | Julián Pulecio-Díaz |
| collection | DOAJ |
| description | Roller-compacted concrete (RCC) for pavements has experienced problems with its physical-mechanical performance over extended periods due to ambient and in situ curing conditions. Accordingly, this study aimed to present multiple regression equations for calculating the physical-mechanical properties of RCC for pavements under different service and mix conditions. For this purpose, the research included two cement and two water contents, one reduced with admixture, and four combinations of temperature and relative humidity. For model calibration and definition of the equations, cubic and beam samples were fabricated to carry out physical-mechanical tests, such as moisture content, shrinkage, and modulus of rupture. Laboratory-obtained data were studied with the Response Surface Methodology (RSM) to determine the best regression equations. The main findings determined that the behavior of a mixture of RCC at a prolonged ambient exposure time is possible because the surface models and the RSM were consistent with the different service and mix conditions. The models showed an accuracy of 98.99% in detecting shrinkage changes from 12 to 16% cement with 5.65% water in dry to wet ambient conditions. Similarly, moisture content and modulus of rupture had a 98.27 to 98.88% fit. Finally, the drying shrinkage, with mixes of 12% cement and water content variations with water-reducing admixture and superplasticizer effects, had an adjustment of 94.87%. |
| first_indexed | 2024-03-08T03:53:21Z |
| format | Article |
| id | doaj.art-132ba490be3a4682a290a9f21be50988 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-08T03:53:21Z |
| publishDate | 2024-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-132ba490be3a4682a290a9f21be509882024-02-09T15:17:03ZengMDPI AGMaterials1996-19442024-01-0117354910.3390/ma17030549Prediction of the Physical-Mechanical Properties of Roller-Compacted Concrete Pavements under Different Service and Mix Conditions Based on Cement and Water ContentJulián Pulecio-Díaz0Miguel Sol-Sánchez1Fernando Moreno-Navarro2Faculty of Engineering, Universidad Cooperativa de Colombia, Edificio I, Ibague 730006, ColombiaLaboratory of Construction Engineering, Universidad de Granada, C/Severo Ochoa s/n, 18071 Granada, SpainLaboratory of Construction Engineering, Universidad de Granada, C/Severo Ochoa s/n, 18071 Granada, SpainRoller-compacted concrete (RCC) for pavements has experienced problems with its physical-mechanical performance over extended periods due to ambient and in situ curing conditions. Accordingly, this study aimed to present multiple regression equations for calculating the physical-mechanical properties of RCC for pavements under different service and mix conditions. For this purpose, the research included two cement and two water contents, one reduced with admixture, and four combinations of temperature and relative humidity. For model calibration and definition of the equations, cubic and beam samples were fabricated to carry out physical-mechanical tests, such as moisture content, shrinkage, and modulus of rupture. Laboratory-obtained data were studied with the Response Surface Methodology (RSM) to determine the best regression equations. The main findings determined that the behavior of a mixture of RCC at a prolonged ambient exposure time is possible because the surface models and the RSM were consistent with the different service and mix conditions. The models showed an accuracy of 98.99% in detecting shrinkage changes from 12 to 16% cement with 5.65% water in dry to wet ambient conditions. Similarly, moisture content and modulus of rupture had a 98.27 to 98.88% fit. Finally, the drying shrinkage, with mixes of 12% cement and water content variations with water-reducing admixture and superplasticizer effects, had an adjustment of 94.87%.https://www.mdpi.com/1996-1944/17/3/549response surface methodologywater vapor per kilogram of airphysical-mechanical propertiesroller-compacted concrete pavement mixes |
| spellingShingle | Julián Pulecio-Díaz Miguel Sol-Sánchez Fernando Moreno-Navarro Prediction of the Physical-Mechanical Properties of Roller-Compacted Concrete Pavements under Different Service and Mix Conditions Based on Cement and Water Content Materials response surface methodology water vapor per kilogram of air physical-mechanical properties roller-compacted concrete pavement mixes |
| title | Prediction of the Physical-Mechanical Properties of Roller-Compacted Concrete Pavements under Different Service and Mix Conditions Based on Cement and Water Content |
| title_full | Prediction of the Physical-Mechanical Properties of Roller-Compacted Concrete Pavements under Different Service and Mix Conditions Based on Cement and Water Content |
| title_fullStr | Prediction of the Physical-Mechanical Properties of Roller-Compacted Concrete Pavements under Different Service and Mix Conditions Based on Cement and Water Content |
| title_full_unstemmed | Prediction of the Physical-Mechanical Properties of Roller-Compacted Concrete Pavements under Different Service and Mix Conditions Based on Cement and Water Content |
| title_short | Prediction of the Physical-Mechanical Properties of Roller-Compacted Concrete Pavements under Different Service and Mix Conditions Based on Cement and Water Content |
| title_sort | prediction of the physical mechanical properties of roller compacted concrete pavements under different service and mix conditions based on cement and water content |
| topic | response surface methodology water vapor per kilogram of air physical-mechanical properties roller-compacted concrete pavement mixes |
| url | https://www.mdpi.com/1996-1944/17/3/549 |
| work_keys_str_mv | AT julianpuleciodiaz predictionofthephysicalmechanicalpropertiesofrollercompactedconcretepavementsunderdifferentserviceandmixconditionsbasedoncementandwatercontent AT miguelsolsanchez predictionofthephysicalmechanicalpropertiesofrollercompactedconcretepavementsunderdifferentserviceandmixconditionsbasedoncementandwatercontent AT fernandomorenonavarro predictionofthephysicalmechanicalpropertiesofrollercompactedconcretepavementsunderdifferentserviceandmixconditionsbasedoncementandwatercontent |