Treatments of plant biomass for cementitious building materials – A review

Vo, Loan T.T.; Navard, Patrick

doi:10.1016/j.conbuildmat.2016.05.125

Cited by 105 publications

(47 citation statements)

References 116 publications

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“…As shown in Figures 6(e) and 6(f ), the surfaces are damaged. e image shows the increase of surface roughness of chemical-modified fibers, the separation of cell wall bundles, the abscission of some tissues, the formation of many cavities, and the exposure of inner fibers, which was consistent with Vo and Navard's findings [39]. Molecular chains of hemicellulose and lignin are disrupted to some extent during the dissolving of extracts.…”

Section: Effect Of Modification Methods On the Microstructure Ofsupporting

confidence: 86%

Effect of Modification Methods of Wheat Straw Fibers on Water Absorbency and Mechanical Properties of Wheat Straw Fiber Cement-Based Composites

Jiang

Cui

et al. 2020

Advances in Materials Science and Engineering

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Five modification methods are adopted for wheat straw fibers (WSFs). e effects of modification methods on the water absorbency of wheat straw fiber/wheat straw fiber cement-based composite (WSFCC) and the mechanical properties of WSFCC are analyzed. e crystallinity, chemical structure, and micromorphology of WSFs and WSFCC 28-day specimens are characterized by XRD, FTIR, and SEM methods. e results show that the water absorption of WSFs modified with sodium silicate solution, pure acrylic acid emulsion, and silicone waterproof emulsion surface spraying is 10.67%, 5.18%, and 1.05% lower than that of unmodified WSFs, respectively. Alkali modification is the ideal method for improving the strength of WSFCC. Establishing a fitting formula of the relationship between water absorption of WSFs and strength of WSFCC specimens has important theoretical and practical guiding significance for development and application of WSFCC.

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Section: Effect Of Modification Methods On the Microstructure Ofsupporting

confidence: 86%

Effect of Modification Methods of Wheat Straw Fibers on Water Absorbency and Mechanical Properties of Wheat Straw Fiber Cement-Based Composites

Jiang

Cui

et al. 2020

Advances in Materials Science and Engineering

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“…Such treatments, as described in the literature, are labour intensive, costly, and often utilise materials of known toxicity or which have handling restrictions associated with workplace health and safety. Vo and Navard [42] draw a very prescient conclusion in this regard: ''A large proportion of [the methods used to overcome issues of biomass durability when embedded in concrete] are effectively helpful in easing the concrete preparation and leading to better final materials. However, most of them, if not all, have little practical value since they are either impossible to be implemented because of the use of chemicals which are not environmentally-friendly or much too expensive.…”

Section: Discussionmentioning

confidence: 99%

“…Gram [41] represents perhaps the first significant study in this regard and Vo and Navard [42] and Pacheco-Torgal and Jalali [43] provide recent and very thorough reviews. Most extant studies focus on 'fibre-reinforcement' or the inclusion of pulp materials in a cementitious composite.…”

Section: Durability Of Bamboo Reinforcement In Concretementioning

confidence: 99%

Bamboo reinforced concrete: a critical review

et al. 2018

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The use of small diameter whole-culm (bars) and/or split bamboo (a.k.a. splints or round strips) has often been proposed as an alternative to relatively expensive reinforcing steel in reinforced concrete. The motivation for such replacement is typically cost-bamboo is readily available in many tropical and sub-tropical locations, whereas steel reinforcement is relatively more expensive-and more recently, the drive to find more sustainable alternatives in the construction industry. This review addresses such 'bamboo-reinforced concrete' and assesses its structural and environmental performance as an alternative to steel reinforced concrete. A prototype three bay portal frame, that would not be uncommon in regions of the world where bambooreinforced concrete may be considered, is used to illustrate bamboo reinforced concrete design and as a basis for a life cycle assessment of the same. The authors conclude that, although bamboo is a material with extraordinary mechanical properties, its use in bamboo-reinforced concrete is an ill-considered concept, having significant durability, strength and stiffness issues, and does not meet the environmentally friendly credentials often attributed to it.

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“…At this stage, the mineralization process was performed and the cylindrical composite prototypes were developed. In general, mineralization procedure for bio-based products is carried out by means of a preparation with a lime and/or cement-based material [44]. Accordingly, this study utilized Portland cement to ensure the cohesion of driftwood particles as a self-sustaining material for building block manufacture (Figure 3).…”

Section: Materials and Sample Preparationmentioning

confidence: 99%

Sustainable New Brick and Thermo-Acoustic Insulation Panel from Mineralization of Stranded Driftwood Residues

et al. 2016

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Abstract:There is considerable interest recently in by-products for application in green buildings. These materials are widely used as building envelope insulators or blocks. In this study, an experimental study was conducted to test stranded driftwood residues as raw material for possible thermo-acoustic insulation panel and environmentally sustainable brick. The thermal and acoustic characteristics of such a natural by-product were examined. Part of samples were mineralized by means of cement-based additive to reinforce the material and enhance its durability as well as fire resistance. Several mixtures with different sizes of ground wood chips and different quantities of cement were investigated. The thermo-acoustic in-lab characterization was aimed at investigating the thermal conductivity, thermal diffusivity, volumetric specific heat, and acoustic transmission loss. All samples were tested before and after mineralization. Results from this study indicate that it is possible to use stranded driftwood residues as building materials with competitive thermo-acoustic properties. In fact, the thermal conductivity was shown to be always around 0.07 W/mK in the unbound samples, and around double that value for the mineralized samples, which present a much higher volumetric specific heat (1.6 MJ/m 3 K) and transmission loss capability. The lignin powder showed a sort of intermediate behavior between the unbound and the mineralized samples.

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Treatments of plant biomass for cementitious building materials – A review

Cited by 105 publications

References 116 publications

Effect of Modification Methods of Wheat Straw Fibers on Water Absorbency and Mechanical Properties of Wheat Straw Fiber Cement-Based Composites

Effect of Modification Methods of Wheat Straw Fibers on Water Absorbency and Mechanical Properties of Wheat Straw Fiber Cement-Based Composites

Bamboo reinforced concrete: a critical review

Sustainable New Brick and Thermo-Acoustic Insulation Panel from Mineralization of Stranded Driftwood Residues

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