Dissertation/ Thesis
Development of a new eco-concrete based on soil and plant fibers : study of mechanical behavior and durability ; Développement d’un nouveau éco-béton à base de sol et fibres végétales : étude du comportement mécanique et de durabilité
| العنوان: | Development of a new eco-concrete based on soil and plant fibers : study of mechanical behavior and durability ; Développement d’un nouveau éco-béton à base de sol et fibres végétales : étude du comportement mécanique et de durabilité |
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| المؤلفون: | Ngo, Duc Chinh |
| المساهمون: | Institut de Mécanique et d'Ingénierie (I2M), Université de Bordeaux (UB)-Institut Polytechnique de Bordeaux-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Arts et Métiers Sciences et Technologies, Université de Bordeaux, Nadia Saiyouri, Zoubir Mehdi Sbartaï, Jacqueline Saliba |
| المصدر: | https://theses.hal.science/tel-01780067 ; Autre. Université de Bordeaux, 2017. Français. ⟨NNT : 2017BORD0885⟩. |
| بيانات النشر: | CCSD |
| سنة النشر: | 2017 |
| المجموعة: | Institut National de la Recherche Agronomique: ProdINRA |
| مصطلحات موضوعية: | Soil concrete, Clayey soil, Hemp fibers, Compressive strength, Ultrasonic method, Shrinkage, Béton de terre, Sol argileux, Fibres de chanvre, Résistance à la compression, Ultrason, Retrait, [SPI.OTHER]Engineering Sciences [physics]/Other |
| الوصف: | The ecological design of structures and the sustainable development is nowadays of high importance in the construction industry. Thus, alternative building materials such as soil concrete containing a proportion of various ecological components are of high importance nowadays. The aim of producing ecological concrete is to reduce the consumption of cement and thus the CO2 production, to provide alternatives to the impoverishment of resources and to reduce the energy consumption in the production process.In recent years, many changes have been observed in the construction methods with the aim to replace traditional concrete by alternative construction materials such as concrete containing a high proportion of various ecological component called "green" while maintaining acceptable properties for the desired application. For instance, constructions made of cost effective raw soils are of real interest since the thermal and acoustic properties are more important than that of ordinary concrete. However, more researchs are needed in order to have a better understanding of their mechanical properties and their durability.This study aims to optimize the composition of a new ecological concrete constituted of upgraded excavated soil. Several soil concrete mixtures, composed of different proportions of clayey soil, sandy soil and small quantities of cement, lime and hemp fibers have been tested. The mineralogy and chemical composition of clayey soil was studied by X-ray diffraction (XRD) analysis, and by Environmental Scanning Electron Microscopy (ESEM) coupled with the X-Ray Energy Dispersive Spectrometry (EDS). The casting of the concrete mixtures has been realized by vibration, as ordinary concrete, to obtain the required workability on construction sites.Compressive tests have been carried out on samples at different curing time and conditions. The ultrasonic non-destructive technique has been used for monitoring the hardening of soil concrete in function of the curing conditions. As soil concrete presents important ... |
| نوع الوثيقة: | doctoral or postdoctoral thesis |
| اللغة: | French |
| Relation: | NNT: 2017BORD0885 |
| الاتاحة: | https://theses.hal.science/tel-01780067 https://theses.hal.science/tel-01780067v1/document https://theses.hal.science/tel-01780067v1/file/NGO_DUC_2017.pdf |
| Rights: | info:eu-repo/semantics/OpenAccess |
| رقم الانضمام: | edsbas.8987BA14 |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |