Mechanical and hygrothermal behavior of clay – Sunflower (Helianthus annuus) and rape straw (Brassica napus) plaster bio-composites for building insulation

Brouard, Yoann; Belayachi, Naïma; Hoxha, Dashnor; Ranganathan, N.; Méo, Stéphane

doi:10.1016/j.conbuildmat.2017.11.140

Cited by 81 publications

(59 citation statements)

References 34 publications

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“…Shoots and seed hulls can be merged with other lots and used by various sectors processing non-food crops such as (1) biorefineries for bio-oil (Casoni et al, 2015), biofuel (Ziebell et al, 2013;Zhao et al, 2016) and bioethanol (Dhiman et al, 2017) via the production of fermentable sugars (Ruiz et al, 2013;Liguori et al, 2016;Tavares et al, 2016), (2) bioconversion into branched-chain fatty acids (Dulermo et al, 2016) (3) solid fuel production (Alaru et al, 2013), (4) syngas and biogas production (Zabaniotou et al, 2010;Graß et al, 2013;Hesami et al, 2015), (5) energy production by co-firing with coal (Kułazynski et al, in press), (6) organic fertilizers for marginal land and Cu-deficient soils as compost or biochar amendment (Evangelou et al, 2015;Colantoni et al, 2016;Saleh et al, 2016); and (7) insulation ecomaterial and biocomposites (Mati-Baouche et al, 2016;Liu et al, 2017;Brouard et al, 2018).…”

Section: Discussionmentioning

confidence: 99%

Phytomanagement and Remediation of Cu-Contaminated Soils by High Yielding Crops at a Former Wood Preservation Site: Sunflower Biomass and Ionome

et al. 2018

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This long-term field trial aimed at remediating a Cu-contaminated soil to promote crop production and soil functions at a former wood preservation site. Twenty-eight field plots with total topsoil Cu in the 198-1,169 mg kg −1 range were assessed. Twenty-four plots (OMDL) were amended in 2008 with a compost (made of pine bark chips and poultry manure, OM, 5% w/w) and dolomitic limestone (DL, 0.2%), and thereafter annually phytomanaged with a sunflower-tobacco crop rotation. In 2013, one untreated plot (UNT) was amended with a green waste compost (GW, 5%) whereas 12 former OMDL plots received a second compost dressing using this green waste compost (OM2DL, 5%). In 2011, one plot was amended with the Carmeuse basic slag (CAR, 1%) and another plot with a P-spiked Linz-Donawitz basic slag (PLD, 1%). Thus six soil treatments, i.e., UNT, OMDL, OM2DL, GW, CAR, and PLD, were cultivated in 2016 with sunflower (Helianthus annuus L. cv Ethic). Shoots were harvested and their ionome analyzed. At high soil Cu contamination, the 1M NH 4 NO 3-extractable vs. total soil Cu ratio ranked in decreasing order: Unt (2.35) > CAR (1.02), PLD (0.83) > GW (0.58), OMDL (0.44), OM2DL (0.37), indicating a lower Cu extractability in the compost-amended plots. All amendments improved the soil nutrient status and the soil pH, which was slightly acidic in the UNT soil. Total organic C and N and extractable P contents peaked in the OM2DL soils. Both OMDL and OM2DL treatments led to higher shoot DW yields and Cu removals than the GW, CAR, and PLD treatments. Shoot DW yields decreased as total topsoil Cu rose in the OMDL plots, on the contrary to the OM2DL plots, demonstrating the benefits to repeat compost application after 5 years. Shoot Cu concentrations notably of OMDL and OM2DL plants fitted into their common range and can be used by biomass Mench et al. Phytomanagement of Cu-Contaminated Soils processing technologies and oilseeds as well. In overall, there is a net gain in soil physico-chemical properties and underlying soil functions. HIGHLIGHTS-Compost incorporated into Cu-contaminated soils improves the sunflower growth.-Soil organic matter increases in compost-amended soils.-Extractable soil Cu decreases in compost-amended soils.-Shoot Cu removal by sunflower reaches 26-88 g Cu ha −1 year −1 .

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Section: Discussionmentioning

confidence: 99%

Phytomanagement and Remediation of Cu-Contaminated Soils by High Yielding Crops at a Former Wood Preservation Site: Sunflower Biomass and Ionome

et al. 2018

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“…Acoustical performance for building materials can be evaluated by using three major parameters (sound level, equivalent sound absorption area (A) and sound absorption coefficient (α)) which were represented in figures (8)(9)(10). These figures reveal that all samples that were tested have close acoustical performance, as well as offer good acoustic insulation property.…”

Section: Acoustic Insulation Testmentioning

confidence: 99%

“…Increasing the value of thermal resistance for roof through covering the roof by white paint or using plastic tiles over the roof [3], or, by covering the building roof by grasses or by a layer of water in order to reduce the heat that transfer through roof [4]. Using composite materials as an insulators are now a research growing interests, some of these research interest in inorganic based materials such as using composite materials that consist of fiberglass and polyester resin as thermal insulators for roofs [5], and others interest in using organic based materials such as using sunflower stalks particles and chitosan as an insulating composite material [6], using corn stalk particles with epoxy resin as insulation composite material [7], using hemp fiber with polyurethane composite [8] or using straw and sunflower with clay for thermal insulation [9]. The present investigation aims to show the possibility of using composite materials as secondary roofs, through studying and comparing their mechanical, acoustical and thermal behaviors with conventional secondary roofs.…”

Section: Introductionmentioning

confidence: 99%

Mechanical and Acoustic Properties of Composite Material in a Secondary Roof to Reducing the Cooling Load

Hussein¹,

Mohammed²,

Kadhom³

2018

ETJ

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The present investigation aims to perform experimental study to show the feasibility of application composite materials as secondary roofs, as well as their capability for reducing cooling load in building. Moreover, compare some of their mechanical properties and acoustic insulation with conventional secondary roofs. Three basic models, which are common, were chosen for the construction of buildings' roofs in Baghdad (concrete and concrete tiles as basic components of the first model, brick and clay tiles as basic components of the second model and brick and normal tiles as basic components of the third model). In addition, three composite materials were used in present work (fiber glass+ Nylon 66, fiber glass+ one layer of date palm cortex and fiber glass+ two layers of date palm cortex). The gypsum plates have been selected as a conventional secondary roofs when performing calculations and comparison. The results show that using proposed composite materials leads to significant reduction in cooling load by about 69.56 %, 65.3 % and 65.5 % respectively for the three models. In addition, the comparison of acoustic insulation shows that the proposed materials offer good acoustic insulation. Moreover, these materials able to afford external shocks better.

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“…Some of their results were published in a high quality compilation [5]. Different light earth mixes were recently studied by different research teams, mostly focusing on thermal and hygrothermal properties, using straw [6], coco [7], typha [8], hemp [9], rape straw and sunflower [10]. A raw comparison between hemp-clay [9,11] and hemp-lime [12,13,14] shows these mixes have rather similar thermal and hygrothermal performances, but hemp-clay has a 20 times lower embodied energy.…”

Section: Introductionmentioning

confidence: 99%

Acoustical properties of hemp concretes for buildings thermal insulation: Application to clay and lime binders

Degrave-Lemeurs

Glé

Ménibus³

2018

Construction and Building Materials

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Mechanical and hygrothermal behavior of clay – Sunflower (Helianthus annuus) and rape straw (Brassica napus) plaster bio-composites for building insulation

Cited by 81 publications

References 34 publications

Phytomanagement and Remediation of Cu-Contaminated Soils by High Yielding Crops at a Former Wood Preservation Site: Sunflower Biomass and Ionome

Phytomanagement and Remediation of Cu-Contaminated Soils by High Yielding Crops at a Former Wood Preservation Site: Sunflower Biomass and Ionome

Mechanical and Acoustic Properties of Composite Material in a Secondary Roof to Reducing the Cooling Load

Acoustical properties of hemp concretes for buildings thermal insulation: Application to clay and lime binders

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