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In order to find a reasonable way to use the waste corn husk, waste degummed corn husk fibers were used as reinforcing material in one type of composite material. And polylactic acid particles were used as matrix material. The composite materials were prepared by mixing and hot-pressing process, and they were processed into the micro-slit panel. Th...
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The moisture absorption behavior of flax fiber-reinforced epoxy composites is deliberated to be a serious issue. This property restricts their usage as outdoor engineering structures. Therefore, this study provides an investigation of moisture in flax fibers on the performance of the flax/epoxy composite materials based on their shear responses. Th...
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... They contribute significantly to pollution due to their CO2 emissions during manufacturing and create disposal-related ecological challenges. The adoption of locally sourced materials in the construction sector has emerged as a vital solution to address the economic challenges faced by developing nations [3,4]. Given that the building industry is a substantial consumer of both materials and energy resources, as well as a major contributor to pollution and waste generation, the pursuit of sustainable construction has increasingly shifted focus toward the judicious use of industrial and agro-industrial materials [5]. ...
The aim of this study is to experimentally test the stabilization of unexploited clay from the Errachidia region (south-east Morocco) with date palm spathes, with a view to its potential use in construction. The main objective of the present work is to evaluate the thermophysical and mechanical behavior of fiber-stabilized clay blocks. Several samples of spathe-reinforced clay at six different grades (0%, 1%, 2%, 3%, 4%, and 5%) were prepared and tested. Thermal characterization was carried out using the PHYWE House thermal insulation method to determine thermal conductivity and resistance. Mechanical performance was measured in terms of compressive and flexural strength. In addition, the chemical identification of Errachidia clay was studied using the X-ray fluorescence method. The results of the clay identification showed that Errachidia clay meets the minimum requirements for the manufacture of compressed earth bricks and adobe. The results of the thermophysical tests showed that the addition of date palm spathes had a positive influence on the lightness and thermophysical properties of the clay samples stabilized by the spathes. In terms of mechanical test results, the flexural and compressive strengths of clay blocks stabilized with date palm fibers continue to increase up to a fiber content of 3%. After this content, mechanical performance decreases with the addition of spathes and no improvement is detected. Consequently, a fiber content of 3% represents the optimum content for stabilizing Errachidia clay. At this content, stabilized clay blocks show optimal mechanical performance and improved thermal properties compared to reference samples. However, increasing the percentage of fiber mass leads to an increase in water absorption and a decrease in density. Clay compounds reinforced with date palm spathe can be considered as environmentally friendly building materials.
... They contribute significantly to pollution due to their CO2 emissions during manufacturing and create disposal-related ecological challenges. The adoption of locally sourced materials in the construction sector has emerged as a vital solution to address the economic challenges faced by developing nations [3,4]. Given that the building industry is a substantial consumer of both materials and energy resources, as well as a major contributor to pollution and waste generation, the pursuit of sustainable construction has increasingly shifted focus toward the judicious use of industrial and agro-industrial materials [5]. ...
The aim of this study is to experimentally test the stabilization of unexploited clay from the Errachidia region (south-east Morocco) with date palm spathes, with a view to its potential use in construction. The main objective of the present work is to evaluate the thermophysical and mechanical behavior of fiber-stabilized clay blocks. Several samples of spathe-reinforced clay at six different grades (0%, 1%, 2%, 3%, 4%, and 5%) were prepared and tested. Thermal characterization was carried out using the PHYWE House thermal insulation method to determine thermal conductivity and resistance. Mechanical performance was measured in terms of compressive and flexural strength. In addition, the chemical identification of Errachidia clay was studied using the X-ray fluorescence method. The results of the clay identification showed that Errachidia clay meets the minimum requirements for the manufacture of compressed earth bricks and adobe. The results of the thermophysical tests showed that the addition of date palm spathes had a positive influence on the lightness and thermophysical properties of the clay samples stabilized by the spathes. In terms of mechanical test results, the flexural and compressive strengths of clay blocks stabilized with date palm fibers continue to increase up to a fiber content of 3%. After this content, mechanical performance decreases with the addition of spathes and no improvement is detected. Consequently, a fiber content of 3% represents the optimum content for stabilizing Errachidia clay. At this content, stabilized clay blocks show optimal mechanical performance and improved thermal properties compared to reference samples. However, increasing the percentage of fiber mass leads to an increase in water absorption and a decrease in density. Clay compounds reinforced with date palm spathe can be considered as environmentally friendly building materials. 1. Introduction Owing to the swift urbanization and population expansion, the substantial energy requirements in the foreseeable future pose a looming crisis globally. This escalating demand for energy is driven not only by large-scale development projects but also by routine daily activities. The construction industry, responsible for approximately a quarter of Morocco's yearly energy consumption, is a major contributor to 30% of energy-related CO2 emissions and roughly a third of black carbon emissions [1]. Hence, there is an urgent need for substantial advancements in the realm of sustainable construction, with the objective of achieving a 30% reduction in the energy intensity
... They contribute significantly to pollution due to their CO2 emissions during manufacturing and create disposal-related ecological challenges. The adoption of locally sourced materials in the construction sector has emerged as a vital solution to address the economic challenges faced by developing nations [3,4]. Given that the building industry is a substantial consumer of both materials and energy resources, as well as a major contributor to pollution and waste generation, the pursuit of sustainable construction has increasingly shifted focus toward the judicious use of industrial and agro-industrial materials [5]. ...
... They contribute significantly to pollution due to their CO2 emissions during manufacturing and create disposal-related ecological challenges. The adoption of locally sourced materials in the construction sector has emerged as a vital solution to address the economic challenges faced by developing nations [3,4]. Given that the building industry is a substantial consumer of both materials and energy resources, as well as a major contributor to pollution and waste generation, the pursuit of sustainable construction has increasingly shifted focus toward the judicious use of industrial and agro-industrial materials [5]. ...
The aim of this study is to experimentally test the stabilization of unexploited clay from the Errachidia region (south-east Morocco) with date palm spathes, with a view to its potential use in construction. The main objective of the present work is to evaluate the thermophysical and mechanical behavior of fiber-stabilized clay blocks. Several samples of spathe-reinforced clay at six different grades (0%, 1%, 2%, 3%, 4%, and 5%) were prepared and tested. Thermal characterization was carried out using the PHYWE House thermal insulation method to determine thermal conductivity and resistance. Mechanical performance was measured in terms of compressive and flexural strength. In addition, the chemical identification of Errachidia clay was studied using the X-ray fluorescence method. The results of the clay identification showed that Errachidia clay meets the minimum requirements for the manufacture of compressed earth bricks and adobe. The results of the thermophysical tests showed that the addition of date palm spathes had a positive influence on the lightness and thermophysical properties of the clay samples stabilized by the spathes. In terms of mechanical test results, the flexural and compressive strengths of clay blocks stabilized with date palm fibers continue to increase up to a fiber content of 3%. After this content, mechanical performance decreases with the addition of spathes and no improvement is detected. Consequently, a fiber content of 3% represents the optimum content for stabilizing Errachidia clay. At this content, stabilized clay blocks show optimal mechanical performance and improved thermal properties compared to reference samples. However, increasing the percentage of fiber mass leads to an increase in water absorption and a decrease in density. Clay compounds reinforced with date palm spathe can be considered as environmentally friendly building materials.
... They contribute significantly to pollution due to their CO2 emissions during manufacturing and create disposal-related ecological challenges. The adoption of locally sourced materials in the construction sector has emerged as a vital solution to address the economic challenges faced by developing nations [3,4]. Given that the building industry is a substantial consumer of both materials and energy resources, as well as a major contributor to pollution and waste generation, the pursuit of sustainable construction has increasingly shifted focus toward the judicious use of industrial and agro-industrial materials [5]. ...
The aim of this study is to experimentally test the stabilization of unexploited clay from the Errachidia region (south-east Morocco) with date palm spathes, with a view to its potential use in construction. The main objective of the present work is to evaluate the thermophysical and mechanical behavior of fiber-stabilized clay blocks. Several samples of spathe-reinforced clay at six different grades (0%, 1%, 2%, 3%, 4%, and 5%) were prepared and tested. Thermal characterization was carried out using the PHYWE House thermal insulation method to determine thermal conductivity and resistance. Mechanical performance was measured in terms of compressive and flexural strength. In addition, the chemical identification of Errachidia clay was studied using the X-ray fluorescence method. The results of the clay identification showed that Errachidia clay meets the minimum requirements for the manufacture of compressed earth bricks and adobe. The results of the thermophysical tests showed that the addition of date palm spathes had a positive influence on the lightness and thermophysical properties of the clay samples stabilized by the spathes. In terms of mechanical test results, the flexural and compressive strengths of clay blocks stabilized with date palm fibers continue to increase up to a fiber content of 3%. After this content, mechanical performance decreases with the addition of spathes and no improvement is detected. Consequently, a fiber content of 3% represents the optimum content for stabilizing Errachidia clay. At this content, stabilized clay blocks show optimal mechanical performance and improved thermal properties compared to reference samples. However, increasing the percentage of fiber mass leads to an increase in water absorption and a decrease in density. Clay compounds reinforced with date palm spathe can be considered as environmentally friendly building materials.
... Lyu et al. [38] explored the SAC values of multi-layered composite materials using waste corn husk fibers. In this study, polylactic acid powders served as the lattice, and corn husk was incorporated as a reinforcing agent. ...
... Schematic of fabrication process of samples, A) Influence of flax felt thickness on SAC properties, B) The effect of air cavity depth on SAC properties, C) Effect of slit rate on sound absorption coefficient, D) Effect of thickness of micro-slit panel on SAC properties[38]. ...
In today's modern society, an emerging field that has garnered notable attention pertains to the management of sound. Effective control measures are needed because of the increase in noise pollution from urbanization and industrial growth. Effectively regulating the level of noise across all areas of engineering is imperative. The development of acoustic materials with exceptional absorption efficiency is a frontier area of study for acousticians and architects alike in the acoustic industry. This field has garnered the attention of material scientists owing to the multiple noteworthy characteristic properties it offers. Sound absorption materials commonly consist of conventional chemical and synthetic constituents that require replacement for various justifiable reasons, so substitution of these materials with natural materials is very important. The employment of sustainable, cost-effective, recyclable, and reproducible natural materials instead of conventional materials plays a crucial role in addressing a myriad of environmental concerns. These concerns include, but are not limited to, increasing greenhouse gas emissions (CO 2 levels), potential health risks, pollution of air and natural ecosystems, increasing the temperature (global warming), reduction of fossil fuels and raw materials, and the attainment of modern and ecologically sound cities. The main purpose of this review is to draw attention to the most promising natural sound fibers. Thus, the focus will primarily be on current trends in acoustic natural fibers, recycled materials, and fibers from agricultural wastes. Today, these acoustic fibers are very popular and also drive future directions, particularly by providing the next generation of researchers with considerable opportunities.
... In the studies conducted by Lyu et al. 29 and Akter et al., 30 composites of mortar were produced using treated date palm fibers (MDPFT) and untreated date palm fibers (MDPF). MDPF composites were fabricated by combining water, sand, and Portland cement (CPJ-CEM II/A 42.5) obtained from the LAFARGE factory in M'sila, Algeria, with varying concentrations of 4%, 8%, 12%, 16%, and 20% by weight of both treated DPFT and raw DPF. ...
... In order to investigate the process of water absorption, the methodology outlined in ASTM C642-97, and was followed by. 29,31 The raw and treated MDP7 samples were dried at a constant temperature of T = 60°C prior to the experiment. The water absorption was initiated by capillary action and the percentage of water absorption was determined by measuring the weight difference between the dry samples and the samples of DPF7 (raw and treated) after immersion in water. ...
The utilization of environmentally friendly composite materials for building insulation offers a practical solution to reducing energy consumption. This study explores the application of novel biocomposites, comprising cement, sand, treated (DPFT) and raw (DPF) date palm fibers and their influence on the thermal and mechanical properties of mortars. The samples were prepared with varying weight percentages of date palm fibers (0%− 20%), treated with NaOH, and possessing a fiber length of 7 mm. Water absorption, density, resistance to bending and compression, thermal conductivity and diffusivity were encompassed. The results indicate that incorporating treated fibers has a beneficial effect on the thermal and mechanical properties of the composite when compared to using raw fibers. Additionally, higher proportions of DPF lead to decreased thermal conductivity, diffusivity, and resistance to bending and compression, highlighting the positive impact of DPFT on the composite’s thermal and mechanical attributes. Notably, the treated fiber composite significantly enhances the insulation capacity of the mortar.
... Several researchers have measured the acoustic properties of fibers derived from plant waste from corn cultivation. Lyu et al. [16] have produced a composite material from corn stem fibers immersed in a polylactic acid-based matrix. The composite was made through a hot mixing and pressing process, and panels with micro-cracks, air cavities, and linen felt were prepared from the resulting material. ...
Environmental sustainability and environmental protection are key to shaping the built environment. The use of environmentally sustainable materials in architecture is essential to transform urban centers into modern, sustainable cities, reducing the pollution of air and natural ecosystems, lowering gas emissions, and improving the energy efficiency of structures. In this study, corn processing waste was used as a reinforcing material to create a plaster matrix composite material for use as a sound absorption material. Specimens of two thicknesses were created, and the sound absorption coefficient (SAC) was measured by applying the normal incidence technique. Subsequently, a simulation model for predicting SAC using Artificial Neural Network (ANN) algorithms was utilized to compare the absorption performance of the specimens. The fibers extracted from the corn stem significantly improved the sound absorption performance of the gypsum matrix specimens. This is due to the increase in the porosity of the material caused by the adhesion between the fiber and the plaster which creates air pockets due to the roughness of the fiber. The simulation model appears to be effective in predicting the absorption properties of the material, as indicated by the results.
... Viel et al. [4] selected three types of hemp stalks to prepare composite materials and analyzed them by chemical analysis and scanning electron microscopy (SEM), and the results showed good thermal properties, which verified the feasibility of preparing composite materials with hemp stalks. Lyu et al. [5] used waste corn husk fibers as reinforcement material and PLA particles as the matrix material to prepare sound-absorbing composite materials and investigated the sound-absorbing properties of multilayer structural composite materials. Samaei et al. [6] studied an innovative natural fiber-granular composite made of kenaf fibers and waste rice husk granules. ...
To broaden the application fields of waste hemp stalks, the macromolecular, supramolecular, and morphological structures of waste hemp stalks were analyzed, and the relationship between these properties and the sound absorption properties of the hemp stalks was explored. Then, waste hemp stalk/polycaprolactone sound-absorbing composite materials were prepared by the hot pressing method. The influence of hemp stalk length and mass fraction, and the density and thickness of the composite materials on the sound absorption properties of composites prepared with the hot pressing temperature set to 140 °C, the pressure set to 8 MPa, and the pressing time set to 30 min was investigated. The results showed that, when the sound energy acts on the hemp stalk, the force between the chain segments, the unique hollow structure, and the large specific surface, act together to attenuate the sound energy and convert it into heat and mechanical energy in the process of propagation, to produce a good sound absorption effect. When the hemp stalk length and mass fraction were set to 6 mm and 50%, respectively, and the density and thickness of the material were set to 0.30 g/cm3 and 1.5 cm, respectively, the average sound absorption coefficient of the waste hemp stalk/polycaprolactone sound-absorbing composite material was 0.44, the noise reduction coefficient was 0.42, the maximum sound absorption coefficient was 1.00, and the sound-absorbing band was wide. The study provided an experimental and theoretical basis for the development of waste hemp stalk/polycaprolactone sound-absorbing composite materials, and provided a new idea for the recycling of the waste hemp stalk.
... Berliandika, Yahya and Ubaidillah (2019) have studied the acoustic property of corn husk composite with different mass % and different thickness and found better acoustic absorption in untreated one than in treated one. Lyu et al. (2020) fabricated multilayer composite using corn husk and polylactic acid and investigated the acoustic property which was found to be 1. Sarwati and Mohamed (2021) have investigated the mechanical performance of corn husk fiber bonded with polyethylene matrix with different filler %. ...
The designing of acoustic material with high efficiency absorption is cutting edge research for acoustician as well as architectures’ in the acoustic industries attracts the material scientist due to its numerous significant characteristic properties. Nondestructive technique such as ultrasonic processing is employed for surface modification of corn husk which changes the interfacial as well as skeletal arrangement in interlocking of fibers with polymer chain. Tensile strength of single corn husk fiber before and after surface treatment was observed to be increasing from 332.57 MPa to 345.16 MPa, which confirms the strong fibrillation due to surface treatment. Further the hardness of the fabricated corn husk composite was found to be 23HV as observed in three different places. Thermal conductivity of the samples increases with temperature supporting the validation of the sample for acoustic application. The high sound absorption performance of the composite classified the material as Class-A type with 0.94 absorption coefficient supported by the different characterization and surface analysis of the composite.
