Research Article | OPEN ACCESS
Physical and Chemical Characteristics of Rice Straw
1Ali Abakar, 2Abdallah Dadi Mahamat, 3Andre Donnot, 3Jean-Louis Tanguier and 3Riad Benelmir
1Departement de Genie Civil, Ecole Nationale Superieure des Travaux Publics (ENSTP),
N’Djamena, Tchad
2Departement de Genie Energetique, Institut National Superieur des Sciences et Techniques d’Abeche (INSTA), BP 130, Abeche, Tchad
3Faculte des Sciences et Technologies, Laboratoire d’Etudes et de Recherches sur les Materiaux Bois (LERMAB), Universite de Lorraine, Campus Aiguillettes - BP 70239-54506
Vandœuvre-les-Nancy, France
Research Journal of Applied Sciences, Engineering and Technology 2020 4:115-121
Received: February 7, 2020 | Accepted: April 27 2020 | Published: August 25, 2020
Abstract
This study aims to determine the physical characteristics of rice straw and highlights the presence of sugar in rice straw. The use of natural fibers as a reinforcement in construction has existed for millennia. They are mixed with clay to make building materials. This addition avoids cracks and sometimes contributes to flexural strength. Researchers have detected a high level of sugar in natural fibers. This sugar contained in the biomass is at the origin of the setting delay and the hardening of the building materials. Another not least significant defect found in natural fiber is its high water absorption potential. This hydrophilic character is due to the intrinsic porosity of the straws. This article aims to determine the physical characteristics of rice straw and highlights the presence of sugar in rice straw. First, the density and water absorption rate of the rice straw were determined. Then chemical tests were carried out to determine the rate of mineral constituents (ash), lignin, hemicellulose and finally the rate of cellulose is deduced. Like most crop straws, rice straw contains a high level of sugar. It also has a very low density compared to other building materials. It is around 450 kg/m3. Rice straw also has a high water absorption rate. The absorption rate absorption rate (At) 5 min of immersion in water, its absorption rate reaches 234%.
Keywords:
Building materials, chemical test, physical test, porosity, rice straw, thermal comfort,
Competing interests
The authors have no competing interests.
Open Access Policy
This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Copyright
The authors have no competing interests.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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