Effectiveness of wood waste sawdust to produce medium- to low-strength concrete materials

Batool, Farnaz; Islam, Kamrul; Çakıroğlu, Celal; Shahriar, Anjuman

doi:10.1016/j.jobe.2021.103237

Cited by 29 publications

(23 citation statements)

References 27 publications

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“…It shows, however, that sawdust concrete does not have any strength properties inferior to the currently used building materials. Replacing some of the aggregate with sawdust does not change the failure pattern of concrete cylinders under compression [20]. The mechanism of sawdust concrete failure during bending is similar to regular concrete test.…”

Section: Mechanical Propertiesmentioning

confidence: 68%

“…Air content in sawdust concrete depends on the sawdust percentage. This issue has not been well studied yet, however according to [20] the more sawdust used, the higher the air content and its value is in the range of 5.5%-14%.…”

Section: Physical Propertiesmentioning

confidence: 99%

“…The relationship between flexural (f b ) and compressive (f' c ) strength in sawdust concrete depends on the amount of aggregate replaced with sawdust and the class of concrete used. The ratio between those two strengths f b /f' c varies between 0.07 and 0.17 based on the research available [11], [17], [20].…”

Section: Mechanical Propertiesmentioning

confidence: 99%

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Application of sawdust concrete in construction

Kropidłowska

2022

Bud-Arch

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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.

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Section: Mechanical Propertiesmentioning

confidence: 68%

Section: Physical Propertiesmentioning

confidence: 99%

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Application of sawdust concrete in construction

Kropidłowska

2022

Bud-Arch

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“…A big challenge of the building industry is to better manage the waste resulting from the production of building materials in various building stages. In [ 67 ], it was shown that “proper utilization of sawdust in concrete will conserve the environment by reducing the use of natural resources, reducing the volume of waste material, and reducing CO 2 emissions”. Waste can be incorporated into the concrete mixture in the form of flying ash.…”

Section: Discussionmentioning

confidence: 99%

Perspective of Using Magnesium Oxychloride Cement (MOC) and Wood as a Composite Building Material: A Bibliometric Literature Review

Maier

Manea

2022

Materials

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The building industry is known as one of the biggest consumers of natural resources and an important producer of CO2 emissions. The biggest greenhouse gas emissions are recorded in the production of cement and metallic building materials. The purpose of this paper is to investigate if magnesium oxychloride cement (MOC) can be used as an alternative to the ordinary Portland cement in the mixture of wood–cement composite building materials in order to decrease the negative impact of the construction industry on the environment. The research methodology includes bibliometric literature research, a scientometric analysis and an in-depth discussion. The data used for the research were obtained by interrogating the ISI Web of Science database, selected using the guidelines of the PRISMA method and processed with the help of VOSviewer and Bibliometrix software. The research results indicate an increasing interest in this topic; for example, in the last five years, three times more articles were published on the subject of MOC cement than the number of all articles collected in previous years. Compared to ordinary Portland cement, MOC cement presents a good match with wood, so MOC can be a substitute for ordinary cement to manufacture wood-cement particleboard, especially for the wood species that have high incompatibility with ordinary cement.

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“…It was observed from their work that the thermal conductivity coefficient, the workability, density, setting time and compressive strength of the concrete decreases with increase in sawdust content while the general acoustic properties of the concrete was enhanced as revealed by the increase in noise reduction and sound absorption coefficients of the concrete with increase in sawdust content. Farnaz Batool, Kamrul Islam, Celal Cakiroglu, and Anjuman Shahriar [10] produced concrete in which the fine aggregate was partially replaced with untreated sawdust. In their work, they reported that the micrographs from their works showed a wider formation of cracks and interface gaps in the cement matrix, these gaps and cracks were however, found to contract after immersing the concrete in sulphate for a period of 28 days which also improved the compressive strength.…”

Section: Introductionmentioning

confidence: 99%

Properties of Sawdust Concrete

Onyechere

2022

Jour. of build. mater. Sci.

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This work examined the structural properties of concrete obtained bypartially replacing cement with sawdust ash. The sawdust ash which is apozzolan was obtained by burning sawdust which is a waste product fromprocessing of timber in an open air. The burnt ash was passed through a150 µm metric sieve to obtain the ash used. Physical and chemical analysiswere performed on the ash to verify its suitability as a partial substitute forcement in concrete. Chemical analysis was also carried out on the OrdinaryPortland Cement (OPC) sample. Concrete mixes were produced by replacing OPC with 0%, 5%, 10%, 20% and 30% of Sawdust Ash (SDA). Bothfresh and hardened properties of the concrete produced were investigated.The chemical investigation on the ash showed that it contained most ofthe basic compounds found in OPC making it suitable to serve as a partialsubstitute for OPC in concrete. Investigation on the concrete showed thatboth the workability and density of the concrete reduce as the SDA contentincreases. Analysis on the hardened concrete revealed that the compressivestrength of the concrete decreases as the ash content increases for the earlyages of curing. However, from 21 days curing age upwards, the compressive strength decreases as SDA increases up to 10% of SDA at which thecompressive strength jumped to a maximum value, and then starts reducingagain as the percentage SDA increases. Thus, the SDA concrete gained rapid strength at later ages indicating its pozzolanic activity.

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Effectiveness of wood waste sawdust to produce medium- to low-strength concrete materials

Cited by 29 publications

References 27 publications

Application of sawdust concrete in construction

Application of sawdust concrete in construction

Perspective of Using Magnesium Oxychloride Cement (MOC) and Wood as a Composite Building Material: A Bibliometric Literature Review

Properties of Sawdust Concrete

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