The Experts below are selected from a list of 132 Experts worldwide ranked by ideXlab platform
T Langlet - One of the best experts on this subject based on the ideXlab platform.
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a novel anisotropic analytical model for effective thermal conductivity tensor of dry lime hemp concrete with preferred spatial distributions
Energy and Buildings, 2019Co-Authors: Anh Dung Tranle, Sytuan Nguyen, T LangletAbstract:Abstract This article develops a novel mathematical model using multi-scale homogenization approach to model the effective thermal conductivity tensors of a hemp shiv particle and lime hemp concrete (LHC). This Bio-Based Material is an environmentally-friendly Material that is used more and more in building construction. The thermal conductivity of lime hemp concrete which is generally either cast or sprayed, cannot be expressed as a scalar due to its anisotropic microstructure. The paper develops a novel model to predicting effective thermal conductivity tensor of lime-hemp concrete that takes into account the anisotropy and the size of hemp shiv, the preferred spatial distributions due to fabrication process and the imperfect particle-binding interfaces. Two probability density functions are used for modeling the particle size distributions of hemp shiv and the preferred alignment distribution of hemp particles. A good agreement is obtained between the model and experimental data provided in the literature. The presented analytical solutions offer a suitable tool for a fast optimization of the thermal conductivity of hemp concrete. Such promising future is very useful for the building design, in particular in three-dimensional (3D) simulation models.
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characterization and comparison of hygric properties of rape straw concrete and hemp concrete
Construction and Building Materials, 2016Co-Authors: M Rahim, O Douzane, G Promis, T LangletAbstract:Abstract The use of plant particles as aggregates in construction Materials provide a very good hygric performance, and offers a real contribution to sustainable buildings. This paper focuses on the hygric properties of a new Bio-Based Material called “rape straw lime concrete” in comparison with a “hemp lime concrete” which is used to validate the experimental protocol of this work. The tests are conducted on the sorption isotherm, the water vapor permeability, the capillary water absorption and the moisture buffer capacity which is estimated from the moisture buffer value determined under equilibrium condition. The results showed that the Materials have very interesting hygric properties and exhibit an excellent moisture buffer capacity.
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characterization of flax lime and hemp lime concretes hygric properties and moisture buffer capacity
Energy and Buildings, 2015Co-Authors: M Rahim, O Douzane, G Promis, B Laidoudi, A Crigny, B Dupre, T LangletAbstract:Abstract Bio-Based Materials are increasingly recommended because they have a low environmental impact and correspond perfectly to high environment quality buildings. This article presents the moisture properties of a new Bio-Based Material called flax lime concrete (FLC) and of hemp lime concrete (HLC), which is used to validate the experimental protocol of this work. The moisture properties (sorption isotherm, water vapor permeability, moisture diffusivity) and moisture buffer capacity estimated from the moisture buffer value were determined to gain knowledge about the behavior of these Materials under equilibrium and dynamitic conditions. The results showed that both Bio-Based Materials have high hygric performance and exhibit an “excellent” moisture buffer capacity according to the classification proposed by the Nordtest project.
M Ramesh - One of the best experts on this subject based on the ideXlab platform.
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kenaf hibiscus cannabinus l fibre based bio Materials a review on processing and properties
Progress in Materials Science, 2016Co-Authors: M RameshAbstract:Abstract The non-wood plants became an alternative solution or source of fibrous Material in this millennium due to increasing population and industrialization along with better education. In a view to reduce the cost of production and the harmful destruction of our environment, so many research work has been carried out and still ongoing as to the possibility of using natural fibres for the development of high performance engineering products. It is for the reason that this paper is geared through reviewing the published results and brings out converging problems associated with kenaf; a very important natural fibre with favourable mechanical properties and insight into the use of composite reinforcement has been addressed. The overview of the developments made in the area of kenaf fibre reinforced composites in terms of their market, manufacturing methods, matrix combinations, environmental effects, chemical treatments, physical properties, and fracture characteristics are addressed. Several critical issues and suggestions for future work are discussed, for the bright future of this Bio-Based Material through value addition to enhance its use. Emphases are given on the summary of the literature and presentation of the effect of the kenaf fibres on the final products.
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kenaf hibiscus cannabinus l fibre based bio Materials a review on processing and properties
Progress in Materials Science, 2016Co-Authors: M RameshAbstract:Abstract The non-wood plants became an alternative solution or source of fibrous Material in this millennium due to increasing population and industrialization along with better education. In a view to reduce the cost of production and the harmful destruction of our environment, so many research work has been carried out and still ongoing as to the possibility of using natural fibres for the development of high performance engineering products. It is for the reason that this paper is geared through reviewing the published results and brings out converging problems associated with kenaf; a very important natural fibre with favourable mechanical properties and insight into the use of composite reinforcement has been addressed. The overview of the developments made in the area of kenaf fibre reinforced composites in terms of their market, manufacturing methods, matrix combinations, environmental effects, chemical treatments, physical properties, and fracture characteristics are addressed. Several critical issues and suggestions for future work are discussed, for the bright future of this Bio-Based Material through value addition to enhance its use. Emphases are given on the summary of the literature and presentation of the effect of the kenaf fibres on the final products.
M Rahim - One of the best experts on this subject based on the ideXlab platform.
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characterization and comparison of hygric properties of rape straw concrete and hemp concrete
Construction and Building Materials, 2016Co-Authors: M Rahim, O Douzane, G Promis, T LangletAbstract:Abstract The use of plant particles as aggregates in construction Materials provide a very good hygric performance, and offers a real contribution to sustainable buildings. This paper focuses on the hygric properties of a new Bio-Based Material called “rape straw lime concrete” in comparison with a “hemp lime concrete” which is used to validate the experimental protocol of this work. The tests are conducted on the sorption isotherm, the water vapor permeability, the capillary water absorption and the moisture buffer capacity which is estimated from the moisture buffer value determined under equilibrium condition. The results showed that the Materials have very interesting hygric properties and exhibit an excellent moisture buffer capacity.
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characterization of flax lime and hemp lime concretes hygric properties and moisture buffer capacity
Energy and Buildings, 2015Co-Authors: M Rahim, O Douzane, G Promis, B Laidoudi, A Crigny, B Dupre, T LangletAbstract:Abstract Bio-Based Materials are increasingly recommended because they have a low environmental impact and correspond perfectly to high environment quality buildings. This article presents the moisture properties of a new Bio-Based Material called flax lime concrete (FLC) and of hemp lime concrete (HLC), which is used to validate the experimental protocol of this work. The moisture properties (sorption isotherm, water vapor permeability, moisture diffusivity) and moisture buffer capacity estimated from the moisture buffer value were determined to gain knowledge about the behavior of these Materials under equilibrium and dynamitic conditions. The results showed that both Bio-Based Materials have high hygric performance and exhibit an “excellent” moisture buffer capacity according to the classification proposed by the Nordtest project.
G Promis - One of the best experts on this subject based on the ideXlab platform.
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characterization and comparison of hygric properties of rape straw concrete and hemp concrete
Construction and Building Materials, 2016Co-Authors: M Rahim, O Douzane, G Promis, T LangletAbstract:Abstract The use of plant particles as aggregates in construction Materials provide a very good hygric performance, and offers a real contribution to sustainable buildings. This paper focuses on the hygric properties of a new Bio-Based Material called “rape straw lime concrete” in comparison with a “hemp lime concrete” which is used to validate the experimental protocol of this work. The tests are conducted on the sorption isotherm, the water vapor permeability, the capillary water absorption and the moisture buffer capacity which is estimated from the moisture buffer value determined under equilibrium condition. The results showed that the Materials have very interesting hygric properties and exhibit an excellent moisture buffer capacity.
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characterization of flax lime and hemp lime concretes hygric properties and moisture buffer capacity
Energy and Buildings, 2015Co-Authors: M Rahim, O Douzane, G Promis, B Laidoudi, A Crigny, B Dupre, T LangletAbstract:Abstract Bio-Based Materials are increasingly recommended because they have a low environmental impact and correspond perfectly to high environment quality buildings. This article presents the moisture properties of a new Bio-Based Material called flax lime concrete (FLC) and of hemp lime concrete (HLC), which is used to validate the experimental protocol of this work. The moisture properties (sorption isotherm, water vapor permeability, moisture diffusivity) and moisture buffer capacity estimated from the moisture buffer value were determined to gain knowledge about the behavior of these Materials under equilibrium and dynamitic conditions. The results showed that both Bio-Based Materials have high hygric performance and exhibit an “excellent” moisture buffer capacity according to the classification proposed by the Nordtest project.
O Douzane - One of the best experts on this subject based on the ideXlab platform.
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characterization and comparison of hygric properties of rape straw concrete and hemp concrete
Construction and Building Materials, 2016Co-Authors: M Rahim, O Douzane, G Promis, T LangletAbstract:Abstract The use of plant particles as aggregates in construction Materials provide a very good hygric performance, and offers a real contribution to sustainable buildings. This paper focuses on the hygric properties of a new Bio-Based Material called “rape straw lime concrete” in comparison with a “hemp lime concrete” which is used to validate the experimental protocol of this work. The tests are conducted on the sorption isotherm, the water vapor permeability, the capillary water absorption and the moisture buffer capacity which is estimated from the moisture buffer value determined under equilibrium condition. The results showed that the Materials have very interesting hygric properties and exhibit an excellent moisture buffer capacity.
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characterization of flax lime and hemp lime concretes hygric properties and moisture buffer capacity
Energy and Buildings, 2015Co-Authors: M Rahim, O Douzane, G Promis, B Laidoudi, A Crigny, B Dupre, T LangletAbstract:Abstract Bio-Based Materials are increasingly recommended because they have a low environmental impact and correspond perfectly to high environment quality buildings. This article presents the moisture properties of a new Bio-Based Material called flax lime concrete (FLC) and of hemp lime concrete (HLC), which is used to validate the experimental protocol of this work. The moisture properties (sorption isotherm, water vapor permeability, moisture diffusivity) and moisture buffer capacity estimated from the moisture buffer value were determined to gain knowledge about the behavior of these Materials under equilibrium and dynamitic conditions. The results showed that both Bio-Based Materials have high hygric performance and exhibit an “excellent” moisture buffer capacity according to the classification proposed by the Nordtest project.