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Article Dans Une Revue Heat and Mass Transfer Année : 2020

Development of new construction material for thermal insulation of building based on aggregate of waste paper and cement

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Bouchaib Mandili
  • Fonction : Auteur
Mohamed Taqi
  • Fonction : Auteur
Hamid Chakir
  • Fonction : Auteur
Mohamed Errouaiti
  • Fonction : Auteur

Résumé

In this work, a new method of bricks making based on waste paper has been developed for the thermal insulation of buildings. This method involves converting paper waste into aggregates and combining them with a Portland cement binder. A physical and thermal characterization of the Aggregate of Waste Paper (AWP) is carried out, followed by a structural study by Scanning Electron Microscopy (SEM). Six Paper Brick Types are made with the mass dosage variation of the composite. After drying the bricks in the open air for 28 days, experimental investigations were carried out to determine the density, the water absorption, the compressive and flexural strength, and the propagation speed of ultrasonic waves. In addition, a SEM analysis combined with an Energy-Dispersive X-ray spectroscopy analysis (EDX) is performed to examine the adhesion between the AWP and the cement particles. The characterization results of the aggregates showed a low density and thermal conductivity amounting to170kg/m(3) and 0.06 W/m.K, respectively, and the analysis of their microstructure by SEM demonstrated that their structure is composed of randomly distributed fibers. Moreover, the mechanical properties of the paper bricks are more resistant, since the compressive strength varies between 3.43 and 6.43 MPa, and their thermal properties are lower compared to the conventional bricks, from 0,0851 to 0,0978 W/m.K. Therefore, these findings clearly indicate that the newly made bricks represent an innovative solution for thermal insulation in buildings that can also be used as a structural material.
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Dates et versions

hal-03631972 , version 1 (06-04-2022)

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Bouchaib Mandili, Mohamed Taqi, Hamid Chakir, Omar Douzane, Mohamed Errouaiti. Development of new construction material for thermal insulation of building based on aggregate of waste paper and cement. Heat and Mass Transfer, 2020, 56 (6), pp.1753-1765. ⟨10.1007/s00231-020-02811-2⟩. ⟨hal-03631972⟩

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