Strength and Road Performance of Superabsorbent Polymer Combined with Cement for Reinforcement of Excavated Soil
The process of road construction is often accompanied by a large number of excavation work, and most of the excavated soil has poor engineering performance and needs to be transported away. It has the significance of environmental protection and cost saving to treat the excavated soil as pavement ma...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2021-01-01
|
| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/9170431 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850224050750619648 |
|---|---|
| author | Di Dai Jie Peng Xiaowan Zhao Gang Li Lanlan Bai |
| author_facet | Di Dai Jie Peng Xiaowan Zhao Gang Li Lanlan Bai |
| author_sort | Di Dai |
| collection | DOAJ |
| description | The process of road construction is often accompanied by a large number of excavation work, and most of the excavated soil has poor engineering performance and needs to be transported away. It has the significance of environmental protection and cost saving to treat the excavated soil as pavement materials. The aim of this study is to present laboratory experiments into the mechanical properties, engineering properties, and microstructure of excavated soil stabilized by ordinary Portland cement (OPC) and superabsorbent polymer (SAP). Laboratory experiments were performed to determine unconfined compressive strength (UCS), compactness, durability after wetting and drying cycles, drying shrinkage, and California bearing ratio (CBR). Apart from these, X-ray diffraction (XRD) and scanning electron microscopy (SEM) were used for the microstructure analysis to understand the impact of SAP on cemented excavated soil. It shows that SAP can effectively improve the strength and the compaction of cemented excavated soil with good durability. Although SAP will reduce the CBR value of cemented excavated soil, it still meets the requirements of engineering acceptance. Microscopic analysis shows that SAP absorbs water in the cemented excavated soil and plays a filling role. |
| format | Article |
| id | doaj-art-549157aca87f4eb8be21fc365ccd339c |
| institution | OA Journals |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-549157aca87f4eb8be21fc365ccd339c2025-08-20T02:05:45ZengWileyAdvances in Civil Engineering1687-80861687-80942021-01-01202110.1155/2021/91704319170431Strength and Road Performance of Superabsorbent Polymer Combined with Cement for Reinforcement of Excavated SoilDi Dai0Jie Peng1Xiaowan Zhao2Gang Li3Lanlan Bai4Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing 210098, ChinaKey Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing 210098, ChinaKey Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing 210098, ChinaJSTI Group, Nanjing 210019, ChinaJSTI Group, Nanjing 210019, ChinaThe process of road construction is often accompanied by a large number of excavation work, and most of the excavated soil has poor engineering performance and needs to be transported away. It has the significance of environmental protection and cost saving to treat the excavated soil as pavement materials. The aim of this study is to present laboratory experiments into the mechanical properties, engineering properties, and microstructure of excavated soil stabilized by ordinary Portland cement (OPC) and superabsorbent polymer (SAP). Laboratory experiments were performed to determine unconfined compressive strength (UCS), compactness, durability after wetting and drying cycles, drying shrinkage, and California bearing ratio (CBR). Apart from these, X-ray diffraction (XRD) and scanning electron microscopy (SEM) were used for the microstructure analysis to understand the impact of SAP on cemented excavated soil. It shows that SAP can effectively improve the strength and the compaction of cemented excavated soil with good durability. Although SAP will reduce the CBR value of cemented excavated soil, it still meets the requirements of engineering acceptance. Microscopic analysis shows that SAP absorbs water in the cemented excavated soil and plays a filling role.http://dx.doi.org/10.1155/2021/9170431 |
| spellingShingle | Di Dai Jie Peng Xiaowan Zhao Gang Li Lanlan Bai Strength and Road Performance of Superabsorbent Polymer Combined with Cement for Reinforcement of Excavated Soil Advances in Civil Engineering |
| title | Strength and Road Performance of Superabsorbent Polymer Combined with Cement for Reinforcement of Excavated Soil |
| title_full | Strength and Road Performance of Superabsorbent Polymer Combined with Cement for Reinforcement of Excavated Soil |
| title_fullStr | Strength and Road Performance of Superabsorbent Polymer Combined with Cement for Reinforcement of Excavated Soil |
| title_full_unstemmed | Strength and Road Performance of Superabsorbent Polymer Combined with Cement for Reinforcement of Excavated Soil |
| title_short | Strength and Road Performance of Superabsorbent Polymer Combined with Cement for Reinforcement of Excavated Soil |
| title_sort | strength and road performance of superabsorbent polymer combined with cement for reinforcement of excavated soil |
| url | http://dx.doi.org/10.1155/2021/9170431 |
| work_keys_str_mv | AT didai strengthandroadperformanceofsuperabsorbentpolymercombinedwithcementforreinforcementofexcavatedsoil AT jiepeng strengthandroadperformanceofsuperabsorbentpolymercombinedwithcementforreinforcementofexcavatedsoil AT xiaowanzhao strengthandroadperformanceofsuperabsorbentpolymercombinedwithcementforreinforcementofexcavatedsoil AT gangli strengthandroadperformanceofsuperabsorbentpolymercombinedwithcementforreinforcementofexcavatedsoil AT lanlanbai strengthandroadperformanceofsuperabsorbentpolymercombinedwithcementforreinforcementofexcavatedsoil |