Utilization of modified corn stover powder as sustainable binder into eco-friendly mortar
Corn stover powder is a type of agricultural waste, and its incineration causes several problems, such as environmental pollution and resource waste. Therefore, it is imperative to address the resource utilization problem of corn stover powder. In this study, modified corn stover powder (MCSP) is pr...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-06-01
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| Series: | Results in Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S259012302500862X |
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| author | Zhi-hai He Di-ping Hong Yuan-yuan Jiang Wen-qiang Zhai Rui-qian Wu Wei Tang Bao-ju Liu |
| author_facet | Zhi-hai He Di-ping Hong Yuan-yuan Jiang Wen-qiang Zhai Rui-qian Wu Wei Tang Bao-ju Liu |
| author_sort | Zhi-hai He |
| collection | DOAJ |
| description | Corn stover powder is a type of agricultural waste, and its incineration causes several problems, such as environmental pollution and resource waste. Therefore, it is imperative to address the resource utilization problem of corn stover powder. In this study, modified corn stover powder (MCSP) is prepared by calcining corn stover powder at 600 °C for 2 h. The effects of MCSP as a supplementary cementitious material on the fluidity, setting time, compressive strength, shrinkage and microstructure of cement-based materials are investigated, and the corresponding ecological evaluation is conducted. The findings demonstrated that with the MCSP dosage increases, the fluidity of the mortar reduces and the setting time of the pastes generally shortens. Meanwhile, incorporating 5 % MCSP improves the 28-d compressive strength of the mortar by 18.4 % compared with the ordinary mortar. Incorporating 5 % MCSP refines the pore structure of mortar and increases the hydration product content, thus decreasing the drying shrinkage of the mortar. The autogenous shrinkage of the mortar decreases with increasing MCSP dosage. Furthermore, the cost, CO2 emission and energy consumption of the MCSP mortar decrease with MCSP dosage increasing. The recycling of MCSP is beneficial to produce green and low-carbon mortar. |
| format | Article |
| id | doaj-art-c211efa5f6ca42c48442bc9fc36422dd |
| institution | OA Journals |
| issn | 2590-1230 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Engineering |
| spelling | doaj-art-c211efa5f6ca42c48442bc9fc36422dd2025-08-20T02:12:08ZengElsevierResults in Engineering2590-12302025-06-012610478510.1016/j.rineng.2025.104785Utilization of modified corn stover powder as sustainable binder into eco-friendly mortarZhi-hai He0Di-ping Hong1Yuan-yuan Jiang2Wen-qiang Zhai3Rui-qian Wu4Wei Tang5Bao-ju Liu6College of Civil Engineering, Shaoxing University, Shaoxing 312000, PR China; Key Laboratory of Rock Mechanics and Geohazards of Zhejiang Province, Shaoxing 312000, PR ChinaCollege of Civil Engineering, Shaoxing University, Shaoxing 312000, PR ChinaCollege of Civil Engineering, Shaoxing University, Shaoxing 312000, PR ChinaCollege of Civil Engineering, Shaoxing University, Shaoxing 312000, PR China; Corresponding author.College of Civil Engineering, Shaoxing University, Shaoxing 312000, PR ChinaDepartment of Architecture and Design Art, Shaoxing Vocational and Technical College, Shaoxing 312000, PR ChinaSchool of Civil Engineering, Central South University, Changsha 410075, PR ChinaCorn stover powder is a type of agricultural waste, and its incineration causes several problems, such as environmental pollution and resource waste. Therefore, it is imperative to address the resource utilization problem of corn stover powder. In this study, modified corn stover powder (MCSP) is prepared by calcining corn stover powder at 600 °C for 2 h. The effects of MCSP as a supplementary cementitious material on the fluidity, setting time, compressive strength, shrinkage and microstructure of cement-based materials are investigated, and the corresponding ecological evaluation is conducted. The findings demonstrated that with the MCSP dosage increases, the fluidity of the mortar reduces and the setting time of the pastes generally shortens. Meanwhile, incorporating 5 % MCSP improves the 28-d compressive strength of the mortar by 18.4 % compared with the ordinary mortar. Incorporating 5 % MCSP refines the pore structure of mortar and increases the hydration product content, thus decreasing the drying shrinkage of the mortar. The autogenous shrinkage of the mortar decreases with increasing MCSP dosage. Furthermore, the cost, CO2 emission and energy consumption of the MCSP mortar decrease with MCSP dosage increasing. The recycling of MCSP is beneficial to produce green and low-carbon mortar.http://www.sciencedirect.com/science/article/pii/S259012302500862XModified corn stover powderCement-based materialsMechanical propertiesMicrostructureEcological evaluation |
| spellingShingle | Zhi-hai He Di-ping Hong Yuan-yuan Jiang Wen-qiang Zhai Rui-qian Wu Wei Tang Bao-ju Liu Utilization of modified corn stover powder as sustainable binder into eco-friendly mortar Results in Engineering Modified corn stover powder Cement-based materials Mechanical properties Microstructure Ecological evaluation |
| title | Utilization of modified corn stover powder as sustainable binder into eco-friendly mortar |
| title_full | Utilization of modified corn stover powder as sustainable binder into eco-friendly mortar |
| title_fullStr | Utilization of modified corn stover powder as sustainable binder into eco-friendly mortar |
| title_full_unstemmed | Utilization of modified corn stover powder as sustainable binder into eco-friendly mortar |
| title_short | Utilization of modified corn stover powder as sustainable binder into eco-friendly mortar |
| title_sort | utilization of modified corn stover powder as sustainable binder into eco friendly mortar |
| topic | Modified corn stover powder Cement-based materials Mechanical properties Microstructure Ecological evaluation |
| url | http://www.sciencedirect.com/science/article/pii/S259012302500862X |
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