Behavior of adhesively bonded engineered wood – Wood chip concrete composite decks: Experimental and analytical studies

Fu, Qiuni; Yan, Libo; Ning, Ting; Wang, Bo; Kasal, Bohumil

doi:10.1016/j.conbuildmat.2020.118578

Cited by 36 publications

(12 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Beech wood sawdust. Source: [7] The available literature does not specify which types of wood are used to obtain sawdust with the best results as a material for the production of sawdust concrete. The available research shows use of chips from -for example -juniper, beech (Fig.…”

Section: Sawdustmentioning

confidence: 99%

“…Due to the lower value of the thermal conductivity coefficient than in regular concrete, it is possible to produce elements of thermal insulation layers [5], [9]. Due to the greater stiffness as well as acoustic and fire resistance compared to wooden elements, sawdust concrete can be used as a substitute for wood in the renovation of older buildings [7]. Thanks to its sound-absorbing properties, sawdust concrete can be used in elements that would simultaneously have a barrier and soundproofing function, e.g.…”

Section: Use In Constructionmentioning

confidence: 99%

“…Attempts were made to create composites of wood and sawdust concrete. Slabs made of such a composite, glued with epoxy or polyurethane, met the requirements for stiffness and flexural strength [7].…”

Section: Other Perspectivesmentioning

confidence: 99%

See 2 more Smart Citations

Application of sawdust concrete in construction

Kropidłowska

2022

Bud-Arch

View full text Add to dashboard Cite

Sawdust concrete is a type of lightweight concrete in which some of the mineral aggregate is replaced by sawdust - a by-product of wood processing. It is not a new material, but its potential is not utilised to its full degree. Taking into account the most important advantages of sawdust concrete - lower density and greater thermal and acoustic insulation than ordinary concrete - it is worth to consider the possibilities of its usage in construction wider than currently . In order to present the properties of sawdust concrete, the review of contemporary technical literature has been performed. For the production of sawdust concretes mineralized sawdust from various types of trees, ordinary cements, mineral aggregates and water, are used. The usage of additives and admixtures is also allowed. The properties of the finished sawdust concrete are mainly influenced by the proportion of its components, especially the amount of fine aggregates replaced by sawdust. The construction products made of sawdust concrete are characterized by a low coefficient of thermal conductivity λ and soundproofing properties. In bending tests, a simply supported sawdust concrete beam behaves similar to a regular concrete beam, cracks first appear in the tension zone. Tensile strength, compressive strength and Young's modulus of sawdust concrete products depend on the proportion of components and the method of sawdust preparation before applying in the sawdust concrete-mix. Compared to ordinary concrete, the obtained values for sawdust concrete are lower, but partially fall within the ranges for the lower classes of ordinary concrete. There are several possible applications of sawdust concrete in construction. One of the perspectives is to use it to build walls in buildings that require soundproofing between rooms, or to replace wood with it when renovating old buildings. However, further tests of sawdust concrete are needed in terms of the most favourable composition for its mechanical properties, and to define the standards according to which sawdust concrete elements should be produced.

show abstract

Section: Sawdustmentioning

confidence: 99%

Section: Use In Constructionmentioning

confidence: 99%

See 1 more Smart Citation

Application of sawdust concrete in construction

Kropidłowska

2022

Bud-Arch

View full text Add to dashboard Cite

show abstract

“…In addition, the application of pozzolans reduces the heat of hydration, improving shrinkage and reducing the cracking susceptibility of the material. The whole world knows about these properties and applies pozzolans on cement, generating the so-called composite cement, standardized by Brazilian and international standards [ 22 , 23 , 24 ].…”

Section: Introductionmentioning

confidence: 99%

Clay Ceramic Waste as Pozzolan Constituent in Cement for Structural Concrete

Barreto¹,

Stafanato

Marvila³

et al. 2021

Materials

View full text Add to dashboard Cite

Ceramic-based wastes generated from different industrial activities have increasingly been reused as construction material incorporated into concrete. In general, these wastes just replace common concrete aggregates such as sand and gravel. In the present work, waste from clay brick industries composted of kaolinite minerals were for the first time evaluated for their potential to be reused as the pozzolan constituent of a cement for structural concrete. Initial standard testes revealed that the clay ceramic waste (CCW) displays high pozzolanicity. Concrete was then produced with 10 and 20 wt.% of CCW mixed with ordinary Portland cement (OPC) as its pozzolan constituent. Compression strength of these concretes and of pure OPC as a control sample were determined in standard tests after 14 and 28 days of curing. In addition, the corresponding density, water absorption, capillarity and percentage of voids were measured together with the evaluation of microstructural indices by scanning electron microscopy. The initial tests confirmed that the CCW is indeed an effective pozzolanic potential due to a chemical effect by reacting with CH to generate C–S–H. Moreover, the technological results proved that CCW might effectively replace the pozzolan cement constituent for structural concrete.

show abstract

“…However, mechanical fasteners are unable to ensure a rigid connection and result in a relative slip between the timber and concrete. An almost perfectly rigid connection can be provided using adhesives to bond a concrete layer to timber (Brunner et al 2007;Negrão et al 2010;Kanócz and Bajzecerová 2015;Schmid et al 2016;Fu et al 2020). Although multiple studies on TCC with an adhesive connection have been performed, the bonding of wood and concrete using adhesive is not yet common in practice.…”

Section: Introductionmentioning

confidence: 99%

Normal stress distribution of timber-concrete composite panels with an adhesive shear connection under thermal and humidity loadings

Bajzecerová

Kanócz

Kormaníková

et al. 2021

BioRes

View full text Add to dashboard Cite

Humidity and temperature conditions have a substantial influence on the stresses and total deformation of timber-concrete composite panels, especially in terms of the high rigidity of the shear connection. In the present research, the normal stresses that resulted from the hygrothermal load of timber-concrete composite panels with an adhesive shear connection were analyzed. Three timber-concrete composite panel specimens were placed in controlled climate conditions. Strains in two orthogonal directions were measured. The stress distribution resulted from an approximate analytical calculation model. The results show that the highest stresses occurred near the shear connection. An increase in timber moisture content by 2.1% was predicted to result in exceeding the flexural tensile strength in the concrete perpendicular to the timber grain direction. At an outdoor temperature range, stresses influenced only by the temperature alone will possibly not cause a failure of timber or concrete. Under winter environmental conditions, the stress in timber can possibly reach 12% of the bending strength of the timber used.

show abstract

Behavior of adhesively bonded engineered wood – Wood chip concrete composite decks: Experimental and analytical studies

Cited by 36 publications

References 10 publications

Application of sawdust concrete in construction

Application of sawdust concrete in construction

Clay Ceramic Waste as Pozzolan Constituent in Cement for Structural Concrete

Normal stress distribution of timber-concrete composite panels with an adhesive shear connection under thermal and humidity loadings

Contact Info

Product

Resources

About