Mechanical and Thermal Properties of Sawdust Concrete

Memon, Ruhal Pervez; Sam, Abdul Rahman Mohd; Awal, Abdul; Achekzai, Lemar

doi:10.11113/jt.v79.9341

Cited by 8 publications

(6 citation statements)

References 14 publications

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“…Nowadays, speedy and meteoric development of composite structure stands in need of better concrete performance and a good quality material [1][2][3]. Though concrete is the most cost effective material but it increases dead load of the building due to its high density [4][5][6]. If the density of concrete is reduced it can lead to a number of advantages, as it then results in the reduction of the cost of handling, constructability and transportation [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

“…In the field of building construction, considerable attention and a number of studies in many countries have been devoted to sawdust concrete as a lightweight concrete. In the Singapore-Malaysia region, to use sawdust in building construction many efforts have been exerted to explore its sustainability as sawdust is abundantly present in such tropical regions and is economical and affordable [4].…”

Section: Introductionmentioning

confidence: 99%

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Mechanical, Thermal and Durable Performance of Wastes Sawdust as Coarse Aggregate Replacement in Conventional Concrete

et al. 2018

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Wood yields a number of by-products and Sawdust is as useful as others. Sawdust is regarded as a waste material and is effectively utilised as sawdust concrete in the construction of buildings. It is capable to be utilised as light-weight concrete and holds the quality of long duration heat transfer. In this study, three different ratios (1:1, 1:2 and 1:3) volume mix proportions of cement to sawdust were adopted to make sawdust concrete. At varied intervals of 7, 28 and 56 days of air curing, thermal and mechanical properties like workability, density, elastic modulus, strength and heat transfer were probed of mentioned sawdust concrete proportions. The resistance to elevated temperatures was also evaluated after 28 days of age; weight loss, residual compressive strength, surface texture and ultrasonic pulse velocity were considered in evaluation process. The findings showed that increase in sawdust volume affected to decrease the workability, strength and elevated temperatures resistance. However, the concrete having higher proportion of sawdust performed competently and well in terms of thermal conductivity. Moreover, a decrease in the heat transfer of sawdust was also observed. Examining the all-embracing mechanical and physical properties, sawdust can be effectively utilised in the construction of buildings.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Mechanical, Thermal and Durable Performance of Wastes Sawdust as Coarse Aggregate Replacement in Conventional Concrete

et al. 2018

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“…When cement, sawdust, and sand were combined in the following ratios: 1:1:1, 1:2:1, and 1:3:1 it was found that the 1:3:1 admixture had low thermal conductance compared to the other mix. Because there is more sawdust in the 1:3:1 mixture than in the other two, there is less heat transfer through that mixture [100,109].…”

Section: Thermal Properties Of Sawdust Compositementioning

confidence: 99%

Utilization of sawdust composites in construction—a review

2023

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This study presents the use of sawdust ash as a substitute in the production of sustainable building materials. Inappropriate dispose of wood-waste causes serious environmental problems as it results in atmospheric degradation, emissions of greenhouse gases and the destruction of aquatic and organic products. This review article combines research results from past studies into the usage of sawdust as an alternative for essential elements in construction composites. The result of this study shows that structural concrete can be manufactured with compressive strengths more than 20 MPa by replacing moderately 5–17% of the sand with sawdust or 5–15% of the cement with sawdust ash. By partially substituting sawdust that ranges between 10 and 30% of sand used in the production of blocks and bricks, sawdust blocks and bricks having compressive strengths greater than 3 MPa can be created. According to the findings of this study, sawdust has the potential to make construction composites that are strong, absorb water, and have an elastic modulus that meet international standards. The study concludes that sawdust composites are intriguing due to having hushed heat conductivity, a prominent sound absorption, as well as efficient sound wadding. From the findings, it is demonstrated that an increase in the utilization of sawdust for construction purposes will reduce the possibility of sawdust as a pollution to the environment, and will also ease the costs of disposal.

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“…Substituting 100% natural aggregate with sawdust increased the sound absorption coefficients from 0.43 to 0.74. This issue can explain by the fact that sawdust provides more interconnecting voids at diverse length scales inside the geopolymer concrete matrix (Memon et al, 2017;Mishra and Jena, 2021). In the high-frequency domain, these permeable materials presented an enhanced sound absorption, especially concerning decreasing the concrete density that led the frequency to change to higher values.…”

Section: Sound Absorptionmentioning

confidence: 99%

Investigating the fresh and mechanical properties of wood sawdust-modified lightweight geopolymer concrete

Nikoo

Hafeez

Faridmehr

et al. 2023

Advances in Structural Engineering

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Geopolymer concrete has developed as a potential alternative to ordinary Portland cement-based concrete, wherein various industrial by-products have been converted as beneficial spin-offs. Apart from appropriate compressive strength in the construction sector worldwide, the durability, sound absorption, thermal conductivity, and weight of concrete are also major concerns. Lightweight geopolymer concretes have gained attention because of their superior strength, durability, lower environmental impact, and sustainable characteristics. In this view, the current study examined the feasibility of using sawdust as a natural fine and coarse aggregate substitution in fly ash (FA)-granulated blast furnace slag (GBFS) based geopolymer concrete. Four mixes with a different percentage of sawdust (25, 50, 75, and 100) substituting natural aggregate were designed to examine the effects of sawdust on fresh and hardened features of geopolymer concrete compared to those conventional FA-GBFS-based geopolymer concrete with natural aggregate. Sodium silicate (NS) and sodium hydroxide (NH) (with NS/NH ratio of 0.75) were utilized to dissolve the alumina silicate from FA and GBFS. Informational models were developed using an experimental dataset to estimate the compressive strength of geopolymer concrete mix designs. Besides, using the weight of the developed network, a global sensitivity (GS) analysis was developed to identify the sensitivity of compressive strength to the waste sawdust content. Test results confirmed that by substituting natural aggregate with 100% sawdust, there was around a 35% decrease in compressive strength. Nevertheless, the sound absorption coefficient was increased by an average of 38% in frequencies range between 1800 and 2500 HZ, and thermal conductivity decreased by around 4.5 times once the natural aggregate was substituted by 100% sawdust.

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Mechanical and Thermal Properties of Sawdust Concrete

Cited by 8 publications

References 14 publications

Mechanical, Thermal and Durable Performance of Wastes Sawdust as Coarse Aggregate Replacement in Conventional Concrete

Mechanical, Thermal and Durable Performance of Wastes Sawdust as Coarse Aggregate Replacement in Conventional Concrete

Utilization of sawdust composites in construction—a review

Investigating the fresh and mechanical properties of wood sawdust-modified lightweight geopolymer concrete

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