Assessment of the hygrothermal, microstructural and chemical evolution of a hemp-based cementitious mortar under ETICS total weathering aging protocol

Kosiachevskyi, Dmytro; Abahri, Kamilia; Daubresse, Anne; Prat, Evelyne; Chaouche, Mohend

doi:10.1016/j.conbuildmat.2021.125471

Cited by 7 publications

(4 citation statements)

References 16 publications

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“…Thus, in terms of water resistance, mortars with hemp fibre were the best performers, positioning themselves as the best solution for use in the rehabilitation of external façade cladding [82]. On the other hand, mortars with the addition of hemp in pellet and powder form are more suitable for use as filling mortars under screeds and slope formation.…”

Section: Physical Characterisation Of Mortarsmentioning

confidence: 99%

Feasibility of Ecofriendly Mortars with Different Hemp Additions for Use in Building Sector

Ferrández,

Álvarez Dorado,

Zaragoza-Benzal

et al. 2023

Heritage

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Cement mortars are commonly used in building works for the execution of enclosures and exterior rehabilitation of facades. The incorporation of plant-based additives enables the development of ecofriendly construction materials. In this work, a physical and mechanical characterisation of cement mortars with the incorporation of hemp in three morphologies (fibre, powder and pellet) was conducted. The results show how the additions of hemp powder and pellets with a partial replacement of natural aggregate reduce the final density of cement mortars and their thermal conductivity by more than 16% and 19%, respectively. On the other hand, the addition of hemp fibres reduces shrinkage during the setting of cement mortars, improving their flexural strength and increasing their durability. For this reason, it is possible to recommend the use of these mortars with the addition of natural hemp fibres without prior surface treatment to improve the physical-mechanical properties of these construction materials and extend their application field as ecofriendly materials for masonry work.

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Section: Physical Characterisation Of Mortarsmentioning

confidence: 99%

Feasibility of Ecofriendly Mortars with Different Hemp Additions for Use in Building Sector

Ferrández,

Álvarez Dorado,

Zaragoza-Benzal

et al. 2023

Heritage

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“…Vegetal wastes: coffee waste a,b (3), cork waste a (3), fallen leaves fibres a,b (3), hemp shives a,c (2), rice husk ash a,b (2), wood waste a,b (2), bagasse ash b (1), desiccated and smashed desiccated platanus acerifolia fruits a (1), chopped cane stalks a (1), almond/hazelnut/nut shells a (1), coconut shells a (1), bean and pea pods a (1), curauá fibres e (1), sunflower plant bark and pith a (1), recycled jute fibre c (1), thistle fibre c (1), olive stone e (1) [16,28,35,36,40,45,[57][58][59][60][61][62][63][64][65][66] 3 Animal waste: ground waste seashells b (1) [67] 4…”

Section: Item Wastesmentioning

confidence: 99%

“…Other residues replacing sand were studied, such as straw and fallen leaf fibres [60], hemp shives [62], wood waste, waste polyethylene terephthalate (PET) and particles and pulverized glass fibre-reinforced plastic (GFRP) [64], sunflower plant bark and pith [65], recycled carbon black derived from scrapped off-the-road tires [79], expanded glass [39], recycled pyroclastic aggregates [29] and silicate sawing sludge [82]. It is noteworthy that a study conducted by Coppola et al [81] with foamed plastic waste showed that the presence of plastic aggregates decreased mortar density up to 36% compared to a reference sample, for the maximum investigated natural sand volume replacement.…”

Section: Thermal Performancementioning

confidence: 99%

“…Kosiachevskyi et al [62] studied the performance of mortars with hemp shives before and after accelerated ageing tests. Results show a slight increase in the porosity after the accelerated ageing tests, due to the cracking of the hemp particles/cementitious matrix interface, compensated by carbonation that fills of the pores with calcite.…”

Section: Durability and Fire Resistancementioning

confidence: 99%

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Incorporation of Waste in Thermal Mortars—A Literature Review

Barros,

Barreira,

Maia

et al. 2024

Buildings

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Innovation in construction plays a fundamental role in helping us face current challenges, namely the reduction in energy consumption, the mitigation of the effects of climate change, the depletion of resources, and the generation of waste. Regarding the built environment, improving the thermal properties of the building envelope is one of the growing needs to reduce energy consumption in the building sector. In this context, thermal mortars have been a trend in the construction industry in recent years due to their ability in reducing heat transfer through the building envelope. On the other hand, the addition of waste has been studied as an alternative to improve the thermal properties of mortars and reduce the consumption of primary materials in the construction sector. This work aims to carry out a detailed review regarding the incorporation of waste in thermal mortars through the application of scientometric data analysis and a systematic literature review. To this end, the different residues incorporated into thermal mortars and the various percentages and forms of incorporation were identified throughout the publications gathered in this review. The most studied properties regarding the thermal mortars with the addition of waste were also the subject of study. A comprehensive database of thermal mortars with the incorporation of waste is presented, in which the objectives of the studies, the wastes and forms of incorporation and the measured properties are highlighted. The main results of the analysed researches are deeply discussed and the gaps in this area of the knowledge are identified to point out new directions and possible perspectives for future studies in the field of thermal mortars incorporating waste.

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Experimental Investigation of the Influence of Hemp Particles on Hydration Kinetics of Multicomponent Mineral Binder

Kosiachevskyi¹,

Abahri²,

Daubresse³

et al. 2023

RILEM Bookseries

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Assessment of the hygrothermal, microstructural and chemical evolution of a hemp-based cementitious mortar under ETICS total weathering aging protocol

Cited by 7 publications

References 16 publications

Feasibility of Ecofriendly Mortars with Different Hemp Additions for Use in Building Sector

Feasibility of Ecofriendly Mortars with Different Hemp Additions for Use in Building Sector

Incorporation of Waste in Thermal Mortars—A Literature Review

Experimental Investigation of the Influence of Hemp Particles on Hydration Kinetics of Multicomponent Mineral Binder

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