Soil–water characteristic curve and permeability function of recycled concrete aggregates coated with oil or wax
Recycled concrete aggregate (RCA) is known to be a hydrophilic material. Anattempt has been made to convert RCA into a hydrophobic material by coatingit separately with oil or wax. Both oil and wax are known to increase thehydrophobicity of soil. Although the soil–water characteristic curve (SWCC) a...
| Main Authors: | , , , , |
|---|---|
| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2019
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/104719 http://hdl.handle.net/10220/48663 |
| _version_ | 1826109457953718272 |
|---|---|
| author | Rahardjo, Harianto Prasad, Arun Krisnanto, Sugeng Leong, Eng-Choon Wang, Chien Looi |
| author2 | School of Civil and Environmental Engineering |
| author_facet | School of Civil and Environmental Engineering Rahardjo, Harianto Prasad, Arun Krisnanto, Sugeng Leong, Eng-Choon Wang, Chien Looi |
| author_sort | Rahardjo, Harianto |
| collection | NTU |
| description | Recycled concrete aggregate (RCA) is known to be a hydrophilic material. Anattempt has been made to convert RCA into a hydrophobic material by coatingit separately with oil or wax. Both oil and wax are known to increase thehydrophobicity of soil. Although the soil–water characteristic curve (SWCC) andpermeability function of coarse-grained aggregates have been investigated, theeffect of the introduction of hydrophobicity (coating it with oil or wax) into thecoarse aggregates to their SWCC and permeability function has not been fullyunderstood. The SWCC indicates that coating RCA with oil or wax modifies thedrying and wetting curves as compared with RCA without any coating. The air-entry values and water-entry values are also modified upon coating. RCAs coatedwith oil or wax were found to prevent ingress of water during the wetting test forSWCC. The permeability function of RCAs is also modified. |
| first_indexed | 2024-10-01T02:18:33Z |
| format | Journal Article |
| id | ntu-10356/104719 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:18:33Z |
| publishDate | 2019 |
| record_format | dspace |
| spelling | ntu-10356/1047192020-03-07T11:43:44Z Soil–water characteristic curve and permeability function of recycled concrete aggregates coated with oil or wax Rahardjo, Harianto Prasad, Arun Krisnanto, Sugeng Leong, Eng-Choon Wang, Chien Looi School of Civil and Environmental Engineering DRNTU::Engineering::Civil engineering Recycled Concrete Aggregate Soil–Water Characteristic Curve Recycled concrete aggregate (RCA) is known to be a hydrophilic material. Anattempt has been made to convert RCA into a hydrophobic material by coatingit separately with oil or wax. Both oil and wax are known to increase thehydrophobicity of soil. Although the soil–water characteristic curve (SWCC) andpermeability function of coarse-grained aggregates have been investigated, theeffect of the introduction of hydrophobicity (coating it with oil or wax) into thecoarse aggregates to their SWCC and permeability function has not been fullyunderstood. The SWCC indicates that coating RCA with oil or wax modifies thedrying and wetting curves as compared with RCA without any coating. The air-entry values and water-entry values are also modified upon coating. RCAs coatedwith oil or wax were found to prevent ingress of water during the wetting test forSWCC. The permeability function of RCAs is also modified. Published version 2019-06-12T03:42:37Z 2019-12-06T21:38:12Z 2019-06-12T03:42:37Z 2019-12-06T21:38:12Z 2018 Journal Article Rahardjo, H., Prasad, A., Krisnanto, S., Leong, E.-C., & Wang, C. L. (2019). Soil–water characteristic curve and permeability function of recycled concrete aggregates coated with oil or wax. Geotechnical Testing Journal, 42(2), 471-484. doi:10.1520/GTJ20170404 0149-6115 https://hdl.handle.net/10356/104719 http://hdl.handle.net/10220/48663 10.1520/GTJ20170404 en Geotechnical Testing Journal © 2018 ASTM International. All rights reserved. This paper was published in Geotechnical Testing Journal and is made available with permission of ASTM International. 14 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Civil engineering Recycled Concrete Aggregate Soil–Water Characteristic Curve Rahardjo, Harianto Prasad, Arun Krisnanto, Sugeng Leong, Eng-Choon Wang, Chien Looi Soil–water characteristic curve and permeability function of recycled concrete aggregates coated with oil or wax |
| title | Soil–water characteristic curve and permeability function of recycled concrete aggregates coated with oil or wax |
| title_full | Soil–water characteristic curve and permeability function of recycled concrete aggregates coated with oil or wax |
| title_fullStr | Soil–water characteristic curve and permeability function of recycled concrete aggregates coated with oil or wax |
| title_full_unstemmed | Soil–water characteristic curve and permeability function of recycled concrete aggregates coated with oil or wax |
| title_short | Soil–water characteristic curve and permeability function of recycled concrete aggregates coated with oil or wax |
| title_sort | soil water characteristic curve and permeability function of recycled concrete aggregates coated with oil or wax |
| topic | DRNTU::Engineering::Civil engineering Recycled Concrete Aggregate Soil–Water Characteristic Curve |
| url | https://hdl.handle.net/10356/104719 http://hdl.handle.net/10220/48663 |
| work_keys_str_mv | AT rahardjoharianto soilwatercharacteristiccurveandpermeabilityfunctionofrecycledconcreteaggregatescoatedwithoilorwax AT prasadarun soilwatercharacteristiccurveandpermeabilityfunctionofrecycledconcreteaggregatescoatedwithoilorwax AT krisnantosugeng soilwatercharacteristiccurveandpermeabilityfunctionofrecycledconcreteaggregatescoatedwithoilorwax AT leongengchoon soilwatercharacteristiccurveandpermeabilityfunctionofrecycledconcreteaggregatescoatedwithoilorwax AT wangchienlooi soilwatercharacteristiccurveandpermeabilityfunctionofrecycledconcreteaggregatescoatedwithoilorwax |