Properties of wood-based composites formulated with aggregate industry waste

Ledhem, A; Dheilly, Rose-Marie; Benmalek, Mohamed Larbi; Quéneudec, M.

doi:10.1016/s0950-0618(00)00037-4

Cited by 54 publications

(42 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Three other effective treatments were tested on wood shavings in Ledhem et al [42]: immersion in boiling water, in linseed oil and in boiling water with lime. During the immersion, the water-soluble substances were extracted.…”

Section: Water Absorption and Dimensional Variations Of The Aggregatementioning

confidence: 99%

“…Flexural modulus was improved by 20% with a 48-h alkaline treatment at 25°C [22]. Boiling water treatment slightly improved the mechanical performances of the composite material according to Ledhem et al [42] but decreased the compressive strength and slightly improved the flexural strength in Fertikh et al [52]. Linseed oil treatments decreased mechanical properties, especially tensile strength [42], by around 11% for the mix with paraffin [54].…”

Section: Mechanical Properties Of Aggregates or Fibers And Compositesmentioning

confidence: 99%

“…With immersion in boiling water, some spine fibers were removed, which led to lower fiber-matrix adhesion [52]. With the linseed oil treatment, the adhesion between fibers and a cement-clay matrix decreased as the treatment intensity increased [42].…”

Section: Aggregate and Fiber Adhesion To The Matrixmentioning

confidence: 99%

See 2 more Smart Citations

Plant aggregates and fibers in earth construction materials: A review

Laborel-Préneron

Aubert

Magniont

et al. 2016

Construction and Building Materials

328

157

View full text Add to dashboard Cite

Earth as a building material is increasingly being studied for its low environmental impact and its availability. Plant aggregates and fibers have been incorporated into the earth matrix in the aim of enhancing performance for thousands of years but scientific studies began quite recently. The present paper reviews the state of the art of research on the influence of these various natural and renewable resources in unfired earth materials such as compressed earth blocks, plasters, and extruded and stabilized blocks. This review, based on 50 major studies, includes characterization of the particles and treatments, and recapitulative tables of the material compositions, and the physical, mechanical, hygrothermal and durability performances of earth-based materials. A lack of references on hygroscopic and durability properties was observed. Future research orientations are thus suggested to promote and develop this type of sustainable material, which provides a solution for saving energy and natural resources. Highlights Earth-based products with plant aggregates as a sustainable material are reviewed.  Physicochemical and mechanical properties of plant aggregates or fibers are reviewed.  Mechanical, hygrothermal and durability performances of the composites are reviewed.  Further investigations are needed to promote these materials.

show abstract

Section: Water Absorption and Dimensional Variations Of The Aggregatementioning

confidence: 99%

Section: Mechanical Properties Of Aggregates or Fibers And Compositesmentioning

confidence: 99%

See 1 more Smart Citation

Plant aggregates and fibers in earth construction materials: A review

Laborel-Préneron

Aubert

Magniont

et al. 2016

Construction and Building Materials

328

157

View full text Add to dashboard Cite

show abstract

“…However, no hygroscopic properties were measured. Looking at other types of bioaggregates, few papers can be found where earth is used as a matrix; they include wood [13][14][15][16][17] corn cob [18], straw [17], oat fibres [19], Hibiscus cannabinus fibres [20,21], coconut coir [22], millet [23], sawdust [24] or phytomass [25]. In these studies, it should be noted that the biomass content was very low in comparison with straw-clay, and this resulted in densities higher than 1000 kg.m -3 in most cases.…”

Section: On the Use Of Earth Mixed With Bio-based Materials In Constrmentioning

confidence: 99%

“…4, together with values of earthbased, bio-based and conventional building material conductivities found in the literature. References are [6,50,54] for hemp concrete, [55] for AAC, [13][14][15] for wood clay, [11] for straw clay, and [16] for straw clay plaster.…”

Section: Thermal Conductivitymentioning

confidence: 99%

From the experimental characterization of the hygrothermal properties of straw-clay mixtures to the numerical assessment of their buffering potential

Labat

Magniont

Oudhof³

et al. 2016

Building and Environment

110

View full text Add to dashboard Cite

. From the experimental characterization of the hygrothermal properties of straw-clay mixtures to the numerical assessment of their buffering potential. Building and Environment, Elsevier, 2016, 97, pp.69 -81. 10.1016/j.buildenv.2015 1 From the experimental characterization of the hygrothermal properties of straw-clay mixtures to the numerical assessment of their buffering potential ABSTRACTThe development of innovative materials has to respond to both environmental and energy concerns. Bio-based materials are relevant because they are made from renewable raw materials and are carbon neutral. Similarly, unprocessed earth has a very low embodied energy. In this paper, the basic hygrothermal properties of straw-clay samples provided by two French companies were determined. Mixes with densities lower than 450 kg.m -3 would be suitable for use as self-insulating material in current construction. In addition, the material showed a high sorption capacity and very high water vapour permeability. The measurements were then implemented in a numerical model in order to simulate the hygric response of a small room. The straw-clay mixture was found to have a moisture buffering effect of the same magnitude as walls made of hemp concrete and largely higher than conventional walls. The influence of various indoor finishing materials was investigated through additional simulations.

show abstract