Abstract
In this study, machine controlled high compaction force was used to produce an innovant, sustainable and energy efficient bio-composite based on magnesium phosphate cement (MPC) as binder and corn stalk as bio-aggregate. Characterization of corn stalk was investigated by water absorption, image processing, scanning electron microscopy (SEM), x-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR) analysis. Mechanical, hygrothermal, aging and microstructural properties of bio-composites were examined. Compressive strength of bio-composites compacted by the machine was considerably higher than the manually compacted bio-composites. Capillary absorption and water absorption of bio-composites were lowered due to high compaction force. Increase in the temperature slightly affected the thermal properties of bio-composites. All the bio-composites were rated from good to excellent hygric regulators based on their moisture buffer performance. Influence of high compaction on the thermal, hygric and moisture buffer properties of bio-composites was discernible. Development of molds was detected on the specimens subjected to higher relative humidity level. Finally, formulated energy-efficient and sustainable bio-composites were classified into structural and insulation grade concrete.
| Original language | English |
|---|---|
| Pages (from-to) | 128-143 |
| Number of pages | 16 |
| Journal | Journal of Cleaner Production |
| Volume | 229 |
| DOIs | |
| Publication status | Published - 20 Aug 2019 |
| Externally published | Yes |
Keywords
- Aging properties
- Bio-composites
- Corn stalk
- Moisture buffer capacity
- Thermal properties
ASJC Scopus subject areas
- Renewable Energy, Sustainability and the Environment
- General Environmental Science
- Strategy and Management
- Industrial and Manufacturing Engineering