دانلود رایگان مقاله لاتین خصوصیات حرارتی مکانیکی مصالح از سایت الزویر
عنوان فارسی مقاله:
خصوصیات حرارتی مکانیکی مواد و مصالح ساختمانی بر اساس لوئی جنوبی
عنوان انگلیسی مقاله:
Thermo-mechanical characterization of a building material based on Typha Australis
سال انتشار : 2017
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مقدمه انگلیسی مقاله:
1. Introduction
The building industry is the main energy consumer in Senegal with 54.7%, according to the Energy Information System of SENEGAL. According to the data base of the Typha-based thermal insulation materials production project in Senegal, in West Africa, 25–30% of the electric produced is consumed by this sector. In addition to energy consumption, it is noted that the most important part of the CO2 emitted comes from houses (49%). Building represents a key sector for the reduction of greenhouse gas emission. Using concrete without insulation increases building energy consumption. Thermal insulation is an important factor for reducing energy consumption as well as reducing CO2 emissions [1–3]. The insulation materials available (polystyrene, polyurethane, glass and rose wool etc.) are mainly imported and are very costly [4]. It is therefore necessary to find insulation materials based on vegetable fibers as an alternative to imported insulation materials. This study deals with the use of Typha australis fibers to make a building material. Typha australis is an aquatic plant which is found on wetland and belongs to the Typhaceae family. This plant which can reach a height up to 3 m [5] is particularly widespread on the valley of Senegal River. Typha australis is nowadays considered as a harmful plant. Indeed, the proliferation of this plant on the valley of Senegal River affects its ecosystem and reduces the socioeconomic activities of populations living along the river. The global objective of our study is to transform the harmful Typha australis as an opportunity by its transformation as a building material. This paper aims to do a mechanical and thermal characterization of building materials based on Typha australis fibers. Several research works have been carried out in order to develop vegetal product based on local materials [1–4]. Meukam et al. [1], in his work, shows that the use of sawdust improves the thermal performances of stabilized earth bricks. The cannabis fibers influence on the physical and mechanical properties of BTC (compressed earth bricks) were studied by Millogo et al. [2]. The authors show an improvement on mechanical performance of the BTC. Bal et al. [3] studied the influence on thermal properties of laterite bricks with millet waste additive. The investigation of the mechanical properties and hygroscopic behavior of compressed earth block filled by date palm fibers was done by Taallah et al. [6]. The thermal behavior of hollow clay bricks made up of paper waste has been studied by [7]. The authors showed that the thermal conductivity of the brick materials with additives reduced from 0.68 W/m K to 0.39 W/m K compared with that of the sample without additives. Cherki et al. [8] studied the thermal behavior of an ecological composite material based on granular cork embedded in plaster. Theirfindings indicated that the composite is better than plaster without cork in term of thermal insulation and lightness. Belkarchouche et al. [9] determined the influence of adding natural fibers (olive pomace) on concrete thermal and mechanical properties. Their results showed that the addition of fibers improve slightly the thermal and mechanical performance. Benmansour et al. [10] evaluate the possibility of using a new material, composed with natural cement, sand and date palm fibers, as insulating building materials. Toguyeni et al. [11] focus their study on the thermal characterization of an insulating board made with lime and vegetable fibers of the Hibiscus sabdariffa. Palumbo et al. [12] studied the possibility of developing insulation materials for the construction sector made of non-industrial crop wastes and natural binders. The authors assessed the thermal behavior, equilibrium moisture content and water vapor permeability of experimental insulation panels obtained. Their results showed that crop wastes can perform adequately as insulation materials. Efendy et al. [13], in their study, performed a physical and mechanical characterization of untreated and chemically treated harakeke fibers. These fibers were compared with those of hemp to assess their use as potential reinforcements in composite materials. Other studies were carried out on concrete materials reinforced with Typha australis. Diatta et al. [14] showed that thermal insulation of concrete materials has been improved with additives. Diagne et al. [15] showed that the mechanical properties of concrete materials are improved by combining Typha, sisal pulp and polypropylene fibers. Georgiev et al. [16] report qualitatively the results of testing different combinations of clay with Typha latifolia fibers for their suitability as a universal plaster. Their authors demonstrated clearly the superior properties of Typha fibers as a reinforcement material for clay plaster mortars. Luamkanchanaphan et al. [17] studied study physical, mechanical and thermal properties of insulation boards prepared from narrow-leaved cattail fibers by using Methylene Diphenyl Diisocyanate (MDI) as a binder. Their test results showed that the insulation boards had good physical and mechanical properties and thermal conductivity values of the board with a density of 200–400 kg/m3 were less than that of fibrous materials and cellular materials.
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کلمات کلیدی:
Thermo-Mechanical Properties of Materials - eolss.net https://www.eolss.net/Sample-Chapters/C05/E6-178-04-00.pdf by AV Marchenko - Cited by 1 - Related articles Thermo-mechanical properties of materials are studied for the prediction of material .... Specific heat capacity of inorganic building materials (concrete, break, ... Thermo-mechanical characterization of bioblends from polylactide and ... onlinelibrary.wiley.com/doi/10.1002/mame.201400241/abstract by MA Abdelwahab - 2015 - Cited by 11 - Related articles Jan 15, 2015 - Macromolecular Materials and Engineering ... Thermo-mechanical characterization of bioblends from polylactide ... School of Engineering, Thornborough Building, University of Guelph ... The incorporation of the chain extender enhanced the tensile properties and modulus characterization of the bioblends. Materials | Free Full-Text | Thermo-Mechanical Characterization of ... www.mdpi.com/1996-1944/9/8/689 by G D’Urso - 2016 - Related articles Aug 11, 2016 - Thermo-Mechanical Characterization of Friction Stir Spot Welded AA7050 Sheets by Means of Experimental and FEM Analyses. Materials | Free Full-Text | Characterization of Thermo-Mechanical and ... www.mdpi.com/1996-1944/7/1/375 by E Ghorbel - 2014 - Cited by 12 - Related articles Jan 13, 2014 - In this paper the effects of the strain rate on the inelastic behavior and the self-heating under load conditions are presented for polymeric ... Materials Characterization by Thermomechanical Analysis https://books.google.com/books?isbn=0803114346 Alan T. Riga, C. Michael Neag - 1991 - Materials There is an alternative way to determine physical and mechanical properties: ... drink, and food cans; a very wide range of building materials; washing machines, ... Thermo-mechanical characterization of a building material ... - ISI-dl isi-dl.com/item/320868 ... wiley.com, worldscientific.com. SEARCH. Thermo-mechanical characterization of a building material based on Typha Australis. sciencedirect.com. Source ... [PDF]Hygro-thermo-mechanical properties of earthen materials for ... https://halshs.archives-ouvertes.fr/hal-01005948/document by M Moevus - Cited by 1 - Related articles Jun 13, 2014 - Keywords: earthen materials, hygro-thermal properties, mechanical ... building materials in the world, it is still difficult to find reliable values for ... Understanding thermo-mechanical properties of a new class of materials https://www.sciencedaily.com/releases/2015/04/150417185957.htm Apr 17, 2015 - Understanding thermo-mechanical properties of a new class of materials ... Based on our work, a large class of materials with arbitrary ... Natera Preps Move into Cancer Dx Market as it Continues Building NIPT Capabilities.
