An energy and carbon footprint assessment upon the usage of hemp-lime concrete and recycled-PET façades for office facilities in France and Italy

Maalouf, Chadi; Ingrao, Carlo; Scrucca, Flavio; Moussa, Tala; Bourdot, Alexandra; Tricase, Caterina; Presciutti, Andrea; Asdrubali, Francesco

doi:10.1016/j.jclepro.2016.10.111

Cited by 59 publications

(28 citation statements)

References 34 publications

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“…Hemp lime is a material that has a chance to revolutionize the world's natural construction as it strongly fits into the trend of renewable resources. It has a negative carbon footprint because during its growth, hemp absorbs more carbon dioxide than is used later to make building materials [3,4]. Hemp lime has high thermal insulation, heat accumulation, vapour permeability, is non-flammable, can be used as a fertiliser after demolition and is 100% decomposable [5,6].…”

Section: Introductionmentioning

confidence: 99%

The Heat Conductivity Properties of Hemp–Lime Composite Material Used in Single-Family Buildings

et al. 2020

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The main goal of the paper is to calculate the heat conductivity for three experimental hemp–lime composites used for structural construction purposes with the use of the experimental stand inside two compartments. Due to current construction trends, we are constantly searching for eco-friendly materials that have a low carbon footprint. This is the case of the analyzed material, and additional thermographic heat distribution inside the material during a fire resistance test proves that it is also a perfect insulation material, which could be applied in addition of popular isolating materials. This paper presents the results of certain hemp–lime composite studies and the potential for using hemp–lime composite for the structural construction industry. Hemp–lime composite heat transfer coefficient, fire resistance, and bulk density properties are compared to those of other commonly used construction materials. The obtained results show that the material together with supporting beams made of other biodegradable materials can be the perfect alternative for other commonly used construction materials.

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Section: Introductionmentioning

confidence: 99%

The Heat Conductivity Properties of Hemp–Lime Composite Material Used in Single-Family Buildings

et al. 2020

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“…Consequently, the design and characterization of innovative eco-friendly building materials has become a priority. The incorporation of bio-based raw materials could be a response to this environmental challenge since they are renewable, mainly by-products of local crops, and carbon neutral (Cherrett et al 2005;Maalouf et al 2016;Pretot et al 2014). Over the last fifteen years, these environmental benefits have contributed to the development of a specific building material called "hemp concrete".…”

Section: Introductionmentioning

confidence: 99%

Impact of Bio-Aggregates Properties on the Chemical Interactions with Mineral Binder, Application to Vegetal Concrete

Bourdot

Magniont

Lagouin

et al. 2019

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Plant concretes were developed and are currently used as filling material in a timber frame. Their properties are strongly related to the bio-aggregates characteristics. In addition, since hemp shiv, the reference bio-based aggregate, has a limited availability, it is necessary to consider alternative bio-aggregates largely and locally available. Thus, this paper focused on identifying and understanding mechanisms of interaction between different bio-aggregates and mineral binders. To address this issue, the first objective was to determine the properties of five hemp shives and two alternative bioaggregates for vegetal lightweight concrete: corn and sunflower bark particles. The study of the chemical interactions between bio-aggregates and a pozzolanic binder was conducted on model pastes mixed with filtered solutions containing bio-aggregates extractives. The mechanical properties of the paste, as well as their hydration and their mineralogical evolution were studied. In the last part, the mechanical behavior of vegetal concretes was assessed. The results highlight a strong relation between the mechanical behavior of pastes and concretes and the extractive content of the different tested bio-aggregates. Finally, pastes appeared as a relatively good model to predict the behavior of concretes by following their early age performances: setting delay and 3-day mechanical strength.

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“…14(a) and 14(b)) and one significant peak on the DTG curves (Figs. 13(a) [4][5][6]. This mass loss is a result of the decomposition of the major components of the fibers.…”

Section: Thermal Degradation Characteristicsmentioning

confidence: 99%

“…The development of sustainable building materials is increasingly linked to the use of raw materials from fast-renewable sources represented by biomass. The utilization of this attractive organic material in building materials preparing allows on the one hand reducing the load on the environment [4], and on the other hand assists the development of societies centered upon bio-based economies, which are characterized by both reduced dependence upon imported fossil fuels or mineral resources and reduced greenhouse gases emissions [5].…”

Section: Introductionmentioning

confidence: 99%

Characterization of Manmade and Recycled Cellulosic Fibers for Their Application in Building Materials

Števulová¹,

Hospodárová²,

Estokova³

et al. 2019

Journal of Renewable Materials

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The aim of this study was to characterize two types of cellulosic fibers obtained from bleached wood pulp and unbleached recycled waste paper with different cellulose content (from 47.4 percent up to 82 percent), to compare and to analyze the potential use of the recycled fibers for building application, such as plastering mortar. Changes in the chemical composition, cellulose crystallinity and degree of polymerization of the fibers were found. The recycled fibers of lower quality showed heterogeneity in the fiber sizes (width and length), and they had greater surface roughness in comparison to high purity wood pulp samples. The high purity fibers (cellulose content > 80.0 percent) had greater crystallinity and more homogeneous and smooth surfaces than the recycled fibers. The presence of calcite and kaolinite in all of the recycled cellulosic fibers samples was confirmed, whereas only one wood pulp sample contained calcite. The influence of the chemical composition was reflected in the fiber density values. Changes in the chemical composition and cellulose structure of the fibers affected the specific surface area, porosity and thermo physical properties of the fibers. More favorable values of thermal conductivity were reached for the recycled fibers than for the wood pulp samples. Testing the suitability of the recycled fibers with inorganic impurities originating from the paper-making processes for their use as fillers in plastering mortars (0.5 wt.% fiber content of the total weight of the filler and binder) confirmed their application by achieving a compressive strength value of 28 day-cured fiber-cement mortar required by the standard as well as by measured more favorable value of capillary water absorption coefficient.

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An energy and carbon footprint assessment upon the usage of hemp-lime concrete and recycled-PET façades for office facilities in France and Italy

Cited by 59 publications

References 34 publications

The Heat Conductivity Properties of Hemp–Lime Composite Material Used in Single-Family Buildings

The Heat Conductivity Properties of Hemp–Lime Composite Material Used in Single-Family Buildings

Impact of Bio-Aggregates Properties on the Chemical Interactions with Mineral Binder, Application to Vegetal Concrete

Characterization of Manmade and Recycled Cellulosic Fibers for Their Application in Building Materials

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