Thermal insulation potential of non-industrial hemp (Moroccan cannabis sativa L.) fibers for green plaster-based building materials

Charai, Mouatassim; Sghiouri, Haitham; Mezrhab, Ahmed; Karkri, Mustapha

doi:10.1016/j.jclepro.2021.126064

Cited by 61 publications

(19 citation statements)

References 47 publications

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“…There are many additional non-structural building components that could act as temporary carbon storage. Incorporation of natural fibers, biochar, or cork into components such as gypsum board or insulation could decrease the net-CO2 emissions of the building material [119][120][121][122][123]. In some cases, such use could lead to a potential netuptake material [120][121][122][123].…”

Section: Other Building Materialsmentioning

confidence: 99%

“…Incorporation of natural fibers, biochar, or cork into components such as gypsum board or insulation could decrease the net-CO2 emissions of the building material [119][120][121][122][123]. In some cases, such use could lead to a potential netuptake material [120][121][122][123]. As non-structural components, the acceptance of these materials may occur more readily as performance requirements are less stringent.…”

Section: Other Building Materialsmentioning

confidence: 99%

“…As non-structural components, the acceptance of these materials may occur more readily as performance requirements are less stringent. Additionally, a variety of plant biomass has been shown to decrease the thermal conductivity of the materials and, as a result, could contribute to a reduction in the energy load during the use of a building [122,124]. Noting variations in carbon storage ability depending on the biomass resource [120,121] and the typically shorter lifespan of non-structural components relative to the building [125,126], research should verify scenarios under which such materials can act as a meaningful CO2 storage mechanism.…”

Section: Other Building Materialsmentioning

confidence: 99%

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Opportunities and challenges for engineering construction materials as carbon sinks

et al. 2021

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Population growth and urbanization over the coming decades are anticipated to drive unprecedented demand for infrastructure materials and energy resources. Unfortunately, factors such as the degree of resource consumption, the energy-intensive nature of production, and the chemical-reaction driven emissions make infrastructure materials production industries among the greatest contributors to anthropogenic CO2 emissions. Yet there is an often-overlooked potential environmental benefit to infrastructure materials: most remain in use for decades and their long service lives can facilitate extended storage of carbon. In this perspective, we present an overview of recent technological advancements that can support infrastructure materials acting as a global, distributed carbon sink and discuss areas for further research and development. We present mechanisms to quantify the extent to which the embodied carbon will be removed from the carbon cycle for a long enough period of time to provide carbon sequestration and climate benefit. We conclude that it is possible to unlock the vast potential to engineer a carbon sequestration system that simultaneously meets societal need for expanding infrastructure systems; however, complexities in how these systems are engineered must be systematically and quantitatively incorporated into materials design.

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Section: Other Building Materialsmentioning

confidence: 99%

Section: Other Building Materialsmentioning

confidence: 99%

Section: Other Building Materialsmentioning

confidence: 99%

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Opportunities and challenges for engineering construction materials as carbon sinks

et al. 2021

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“…According to the 2019 China Energy Statistics Yearbook, the total energy consumption of the construction industry throughout the year is about 1.43 billion tons of standard coal, which is more than a quarter of the total final energy consumption of China [1][2][3]. In recent years, as the concept of sustainable development has been put forward, the energysaving of buildings has gradually transformed to green buildings, and the industry of green building materials has ushered in a fast growth [4][5][6]. Green building materials can achieve the environmental protection and energy-saving goals by employing new science and technology means, and they have brought fundamental changes to the traditional construction methods, in this way, the issues of building energy-saving, environmental protection, and pollution control have been well integrated [7,8].…”

Section: Introductionmentioning

confidence: 99%

Application of Green Building Materials and Multi-objective Energy-Saving Optimization Design

Liu¹,

Guo²

2021

IJHT

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Green building materials have brought fundamental changes to the traditional construction methods, enabling better environmental protection and energy-saving performance of the buildings. However, due to the various material types and the large property differences, until now there isn’t a uniform evaluation index system (EIS) for green building materials, the existing studies on the green-level evaluation of green building materials during production and use are insufficient, and the research on energy-saving design is just getting started. For this reason, this paper attempted to launch a research on the multi-objective energy-saving optimization design of buildings based on the application of green building materials. First, the quantification method for the environmental impact factors of green building materials was elaborated, and the intervals and standards of the quantification evaluation were given; then, a green building material optimization selection model was constructed, and a multi-objective energy-saving optimization algorithm was proposed; at last, experimental results gave the green levels of a few candidate green building materials and the scores of the environmental impact factors, which had verified the effectiveness of the proposed algorithm.

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“…The addition of natural fibers in plaster strengthens the plaster coating and thus enhances ductility. Over the last decades, lignocellulosic or cellulosic fibers derived/extracted from various plants (abaca, coir, cork, flax, hemp, rice straw, and sisal) have been used in plaster mortars/composites [ 6 , 8 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 ]. The use of a combination of two natural fibers (kenaf and sisal) for the reinforcement of lime plaster was studied in [ 26 ].…”

Section: Introductionmentioning

confidence: 99%

Recycled Cellulose Fiber Reinforced Plaster

et al. 2021

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This paper aims to develop recycled fiber reinforced cement plaster mortar with a good workability of fresh mixture, and insulation, mechanical and adhesive properties of the final hardened product for indoor application. The effect of the incorporation of different portions of three types of cellulose fibers from waste paper recycling into cement mortar (cement/sand ratio of 1:3) on its properties of workability, as well as other physical and mechanical parameters, was studied. The waste paper fiber (WPF) samples were characterized by their different cellulose contents, degree of polymerization, and residues from paper-making. The cement to waste paper fiber mass ratios (C/WPF) ranged from 500:1 to 3:1, and significantly influenced the consistency, bulk density, thermal conductivity, water absorption behavior, and compressive and flexural strength of the fiber-cement mortars. The workability tests of the fiber-cement mortars containing less than 2% WPF achieved optimal properties corresponding to plastic mortars (140–200 mm). The development of dry bulk density and thermal conductivity values of 28-day hardened fiber-cement mortars was favorable with a declining C/WPF ratio, while increasing the fiber content in cement mortars led to a worsening of the water absorption behavior and a lower mechanical performance of the mortars. These key findings were related to a higher porosity and weaker adhesion of fibers and cement particles at the matrix-fiber interface. The adhesion ability of fiber-cement plastering mortar based on WPF samples with the highest cellulose content as a fine filler and two types of mixed hydraulic binder (cement with finely ground granulated blast furnace slag and natural limestone) on commonly used substrates, such as brick and aerated concrete blocks, was also investigated. The adhesive strength testing of these hardened fiber-cement plaster mortars on both substrates revealed lime-cement mortar to be more suitable for fine plaster. The different behavior of fiber-cement containing finely ground slag manifested in a greater depth of the plaster layer failure, crack formation, and in greater damage to the cohesion between the substrate and mortar for the observed time.

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Thermal insulation potential of non-industrial hemp (Moroccan cannabis sativa L.) fibers for green plaster-based building materials

Cited by 61 publications

References 47 publications

Opportunities and challenges for engineering construction materials as carbon sinks

Opportunities and challenges for engineering construction materials as carbon sinks

Application of Green Building Materials and Multi-objective Energy-Saving Optimization Design

Recycled Cellulose Fiber Reinforced Plaster

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