Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Numerical and experimental investigation of the hygrothermal properties of corn stalk and magnesium phosphate cement (MPC) based bio-composites
https://orcid.org/0000-0002-1251-2316
https://orcid.org/0000-0003-2862-3392
Highlights The proposed multi-phase model can illustrate the heat and moisture transfer features of plant aggregates concrete. The relative humidity distribution profiles show the aggregates shapes influence the heat and moisture transfer. Effect of aggregate volume fractions is greater than that of aggregate shapes. Temperature significantly affects the time to reach equilibrium state and moisture transfer.
Abstract This study includes the experimental and numerical investigation of the hygrothermal properties of magnesium phosphate cement (MPC) and corn stalk (CS) based bio-composites. Bio-composites were formulated using large size and small size corn stalk aggregates. Corresponding numerical models were established to investigate the effect of corn stalk aggregate on the hygrothermal properties of bio-composites. The validity of the numerical models was confirmed by comparing the experimental and numerical results. Hygrothermal properties of bio-composites were predicted through the heat and moisture transfer models. It was observed that numerical results showed satisfactory and close results with the experimental values. Finally, by using the proposed model, the effects of aggregates with different shapes and different volume fractions on heat and moisture transfer were studied. Results showed that the presented model is promising, and it can well evaluate the aggregates effect. The numerical results also showed that the aggregates effect can significantly affect the heat and moisture transfer. At the same time, the temperature effect cannot be ignored when predicting the heat and moisture transfer of the material. With increasing temperature, the aggregate effect will be relatively weakened. Meanwhile, based on this numerical model, the effect of temperature on sorption isotherm and relative humidity distributions in the bio-composites can be well predicted.
Numerical and experimental investigation of the hygrothermal properties of corn stalk and magnesium phosphate cement (MPC) based bio-composites
https://orcid.org/0000-0002-1251-2316
https://orcid.org/0000-0003-2862-3392
Highlights The proposed multi-phase model can illustrate the heat and moisture transfer features of plant aggregates concrete. The relative humidity distribution profiles show the aggregates shapes influence the heat and moisture transfer. Effect of aggregate volume fractions is greater than that of aggregate shapes. Temperature significantly affects the time to reach equilibrium state and moisture transfer.
Abstract This study includes the experimental and numerical investigation of the hygrothermal properties of magnesium phosphate cement (MPC) and corn stalk (CS) based bio-composites. Bio-composites were formulated using large size and small size corn stalk aggregates. Corresponding numerical models were established to investigate the effect of corn stalk aggregate on the hygrothermal properties of bio-composites. The validity of the numerical models was confirmed by comparing the experimental and numerical results. Hygrothermal properties of bio-composites were predicted through the heat and moisture transfer models. It was observed that numerical results showed satisfactory and close results with the experimental values. Finally, by using the proposed model, the effects of aggregates with different shapes and different volume fractions on heat and moisture transfer were studied. Results showed that the presented model is promising, and it can well evaluate the aggregates effect. The numerical results also showed that the aggregates effect can significantly affect the heat and moisture transfer. At the same time, the temperature effect cannot be ignored when predicting the heat and moisture transfer of the material. With increasing temperature, the aggregate effect will be relatively weakened. Meanwhile, based on this numerical model, the effect of temperature on sorption isotherm and relative humidity distributions in the bio-composites can be well predicted.
Numerical and experimental investigation of the hygrothermal properties of corn stalk and magnesium phosphate cement (MPC) based bio-composites
https://orcid.org/0000-0002-1251-2316
https://orcid.org/0000-0003-2862-3392
Highlights The proposed multi-phase model can illustrate the heat and moisture transfer features of plant aggregates concrete. The relative humidity distribution profiles show the aggregates shapes influence the heat and moisture transfer. Effect of aggregate volume fractions is greater than that of aggregate shapes. Temperature significantly affects the time to reach equilibrium state and moisture transfer.
Abstract This study includes the experimental and numerical investigation of the hygrothermal properties of magnesium phosphate cement (MPC) and corn stalk (CS) based bio-composites. Bio-composites were formulated using large size and small size corn stalk aggregates. Corresponding numerical models were established to investigate the effect of corn stalk aggregate on the hygrothermal properties of bio-composites. The validity of the numerical models was confirmed by comparing the experimental and numerical results. Hygrothermal properties of bio-composites were predicted through the heat and moisture transfer models. It was observed that numerical results showed satisfactory and close results with the experimental values. Finally, by using the proposed model, the effects of aggregates with different shapes and different volume fractions on heat and moisture transfer were studied. Results showed that the presented model is promising, and it can well evaluate the aggregates effect. The numerical results also showed that the aggregates effect can significantly affect the heat and moisture transfer. At the same time, the temperature effect cannot be ignored when predicting the heat and moisture transfer of the material. With increasing temperature, the aggregate effect will be relatively weakened. Meanwhile, based on this numerical model, the effect of temperature on sorption isotherm and relative humidity distributions in the bio-composites can be well predicted.
Numerical and experimental investigation of the hygrothermal properties of corn stalk and magnesium phosphate cement (MPC) based bio-composites
Zhang, Xuhao (Autor:in) / Riaz Ahmad, Muhammad (Autor:in) / Chen, Bing (Autor:in)
04.02.2020
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Experimental Investigation Concrete Using Magnesium Phosphate Cement, Fly Ash, and Rape Stalk
| Online Contents | 2016
Experimental Investigation Concrete Using Magnesium Phosphate Cement, Fly Ash, and Rape Stalk
| British Library Online Contents | 2016