Hygric buffer and acoustic absorption of new building insulation materials based on date palm fibers

Belakroum, R.; Gherfi, A.; Bouchema, K.; Gharbi, Abderrezak; Kerboua, Y.; Kadja, Mahfoud; Maalouf, Chadi; Mai, T.H.; Wakil, Nadim El; Lachi, Mohammed

doi:10.1016/j.jobe.2017.05.011

Cited by 51 publications

(20 citation statements)

References 19 publications

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“…The sound absorption coefficient of the bio-composite depends on the pore distribution, the connectivity between the various porous networks, and the type of the binder [ 15 , 33 ].…”

Section: Resultsmentioning

confidence: 99%

“…For the medium frequencies, the sound absorption coefficient of the composite was 0.6. At the same frequency, the sound absorption coefficient of the hemp–starch and cork composites was found as 0.4 and 0.28, respectively [ 13 , 15 , 33 ].…”

Section: Resultsmentioning

confidence: 99%

“…Potato starch ( Figure 3 a) has a high polymerization degree, which gives a viscous binder and provides a good mechanical property for the S-BP composite. Starch was used as a binder to make several bio-composites, such as hemp–starch and palm date fibers-starch [ 8 , 10 , 11 , 33 ]. It can stick the particles together and ensure the transmission of shear forces between the fibers.…”

Section: Methodsmentioning

confidence: 99%

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Hygrothermal and Acoustical Performance of Starch-Beet Pulp Composites for Building Thermal Insulation

et al. 2018

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This article deals with the elaboration and the characterization of an innovative 100% plant-based green composite made solely of beet pulp (BP) and potato starch (S). Using this type of material in insulation applications seems a good solution to reduce the CO2 gas emissions in building. The influence of the starch amount on composite characteristics was studied. Four mixtures were considered with different S/BP mass ratios (0.1, 0.2, 0.3 and 0.4). The physical properties of these materials were studied in terms of porosity, apparent and absolute densities, thermal conductivity, and hygric properties. The influence of humidity content on acoustical properties was studied as a function of frequency. Test results show a real impact of both starch and humidity contents on the hygrothermal and acoustical properties of the studied material due to the porosity. The composite with the lowest amount of starch (S/BP = 0.1) seems to be the optimal composition in terms of the hygrothermal and acoustical behaviors.

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“…The sound absorption coefficient of the bio-composite depends on the pore distribution, the connectivity between the various porous networks, and the type of the binder [ 15 , 33 ].…”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Hygrothermal and Acoustical Performance of Starch-Beet Pulp Composites for Building Thermal Insulation

et al. 2018

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“…Overall, these nanocellulosic materials have a very high water holding capacity due to their extremely large surface area and the presence of hydroxyl groups, which trap and bind the water molecules respectively [62]. Due to this property, nanocellulose is being used in hydrogels and aerogels for multiple applications as they confer enhanced properties in terms of mechanical strength, insulation [31], and absorbance [32], [51] ( Table 2). Nanocellulose is also being used as a reinforcement agent in nanocomposite materials due to hornification (i.e.…”

Section: Nanocellulosementioning

confidence: 99%

Synthetic biology for the development of bio-based binders for greener construction materials

2019

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“…The natural fiber-based composites have numerous implementations in different industries since they are good acoustic absorbers and thermal insulators. Furthermore, they can be used as indoor humidity regulators for building through using coatings and layers of natural composites in interior walls' structure [1,2]. Natural fiber-based composites have the potential to be implemented in civil engineering applications such as manufacturing materials for the construction of buildings when the durability and structural performance are considered.…”

Section: Introductionmentioning

confidence: 99%

Critical Review of the Parameters Affecting the Effectiveness of Moisture Absorption Treatments Used for Natural Composites

Al-Maharma

Al-Huniti

2019

J. Compos. Sci.

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Natural composites can be fabricated through reinforcing either synthetic or bio-based polymers with hydrophilic natural fibers. Ultimate moisture absorption resistance at the fiber–matrix interface can be achieved when hydrophilic natural fibers are used to reinforce biopolymers due to the high degree of compatibility between them. However, the cost of biopolymers is several times higher than that of their synthetic counterparts, which hinders their dissemination in various industries. In order to produce economically feasible natural composites, synthetic resins are frequently reinforced with hydrophilic fibers, which increases the incompatibility issues such as the creation of voids and delamination at fiber–matrix interfaces. Therefore, applying chemical and/or physical treatments to eliminate the aforementioned drawbacks is of primary importance. However, it is demonstrated through this review study that these treatments do not guarantee a sufficient improvement of the moisture absorption properties of natural composites, and the moisture treatments should be applied under the consideration of the following parameters: (i) type of hosting matrix; (ii) type of natural fiber; (iii) loading of natural fiber; (iv) the hybridization of natural fibers with mineral/synthetic counterparts; (v) implantation of nanofillers. Complete discussion about each of these parameters is developed through this study.

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Hygric buffer and acoustic absorption of new building insulation materials based on date palm fibers

Cited by 51 publications

References 19 publications

Hygrothermal and Acoustical Performance of Starch-Beet Pulp Composites for Building Thermal Insulation

Hygrothermal and Acoustical Performance of Starch-Beet Pulp Composites for Building Thermal Insulation

Synthetic biology for the development of bio-based binders for greener construction materials

Critical Review of the Parameters Affecting the Effectiveness of Moisture Absorption Treatments Used for Natural Composites

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