Fresh State and Mechanical Properties of Ultra-Lightweight Foamed Concrete Incorporating Alkali Treated Banana Fibre

Nensok, Mohammed Hassan; Mydin, Azree Othuman; Awang, Hanizam

doi:10.11113/jurnalteknologi.v84.16892

Cited by 13 publications

(10 citation statements)

References 24 publications

(34 reference statements)

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“…Since the process in hardened LFC takes place through the pore system, it is especially true for specimens with a greater water-binder ratio, like the control specimens, which have large pore sizes and volumes [35]. Meanwhile, the filling action of the HF decreased the water/binder ratio of the FC, leading to a shallower carbonation depth in the HF-incorporated specimens [36]. Consequently, this resulted in a decrease in both the pore size and volume of LFC, even though the water-binder ratio is still crucial to the FC carbonation process.…”

Section: Depth Of Carbonationmentioning

confidence: 99%

Studies on durability properties of natural fibre-reinforced green lightweight foamed concrete employing industrial hemp fibres

Mydin

Nawi²,

Omar³

et al. 2023

ARAM

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The utilization of natural fibres for the invention of building materials has increased significantly in recent years in the construction industry. Hemp fibre-reinforced concrete, according to research, can provide low-cost building materials for residential and low-rise buildings while achieving sustainable construction and meeting future environmental targets. The purpose of this research was to improve the durability of lightweight foamed concrete (LFC) reinforced with hemp fibre (HF). Six weight fractions of HF were considered specifically 0.0% (control), 0.1%, 0.2%, 0.3%, 0.4% and 0.5%. Besides, three densities of LFC which were 500, 900 and 1300 kg/m3 were cast and tested. The properties evaluated were drying shrinkage, water absorption, depth of carbonation and porosity. From the durability tests, it was observed that the optimal results for water absorption, depth of carbonation and porosity tests were attained with the addition of 0.5% HF into LFC mixes. For the drying shrinkage test, LFC with the weight fractions of 0.3% (500 kg/m3), 0.4% (900 kg/m3) and 0.5% (1300 kg/m3) reveal the optimal drying shrinkage. This research has provided a foundation for further research into HF-strengthening LFC. There is a huge potential to utilize HF in cement-based materials for durability and mechanical properties enhancement. The use of industrial HF might make it possible to reduce fine aggregate while still producing LFC of higher quality. The inclusion of agricultural fibres in LFC will also promote the expansion of farming operations, which will have rewarding economic benefits.

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Section: Depth Of Carbonationmentioning

confidence: 99%

Studies on durability properties of natural fibre-reinforced green lightweight foamed concrete employing industrial hemp fibres

Mydin

Nawi²,

Omar³

et al. 2023

ARAM

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“…For concrete production, however, to maintain concrete quality, the requirement of mineral admixture is promoted nowadays [ 6 , 7 ]. Compared to conventional construction, there are a lot of advantages, like cost savings, reduction in self-weight, excellent fire resistance, etc., associated with the usage of foamed concrete (FC), which pushes to use it in the global building sector [ [8] , [9] , [10] , [11] , [12] , [13] , [14] ]. Typically, FC is referred to as a porous or cellular lightweight material that is suitable for an extensive variety of applications in construction [ 15 , 16 ].…”

Section: Introductionmentioning

confidence: 99%

Enhanced fresh and hardened properties of foamed concrete modified with nano-silica

Othuman Mydin,

Jagadesh,

Bahrami

et al. 2024

Heliyon

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“…The composition of this material consists of Portland cement paste or a cement filler matrix (mortar), with a minimum total volume of 20% [6]. The density of FM can be adjusted within the range of 400 to 1600 kg/m 3 [7]. It possesses various appealing attributes, including effective thermal and acoustic insulation, ease of manufacturing, and self-flowing properties [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Formulating Eco-Friendly Foamed Mortar by Incorporating Sawdust Ash as a Partial Cement Replacement

Majeed

2024

Sustainability

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Utilizing sawdust efficiently to produce construction materials can help safeguard the environment and decrease costs by minimizing the need for traditional resources and reducing carbon dioxide (CO2) emissions. Additionally, recycling sawdust plays an essential role in creating a sustainable ecosystem. Hence, this study aimed to examine the potential use of sawdust ash (SDA) as a partial cement replacement on foamed mortar (FM) properties, including its fresh, mechanical, transport, thermal, and microstructural properties. A variety of FM mixtures were tested for workability, density, consistency, intrinsic air permeability, porosity, split tensile strength, compressive strength, flexural strength, and thermal conductivity by replacing cement with SDA at varying percentages of 0%, 10%, 20%, 30%, 40%, and 50%. The results revealed that FM’s workability was reduced by the introduction of SDA with a higher percentage cement replacement, while the density of the FM mixtures was reduced due to SDA’s specific gravity being lower than that of cement. A linear improvement was observed in the air permeability, sorptivity, and porosity of FM–SDA composites with an increased SDA percentage to 20%. It is notable that these properties started to deteriorate once the cement replacement by SDA surpassed 30%. A noticeable improvement of mechanical strength properties of the FM was found at 20% of SDA content, but they deteriorated when the SDA content was more than 30%. FM blends with higher SDA contents exhibited larger and more apparent voids, according to SEM analysis. In conclusion, incorporating sawdust into formulations emerges as a viable method for FM production. This approach not only mitigates the environmental impact of sawdust disposal but also reduces the need for extracting natural resources in construction material manufacturing.

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Fresh State and Mechanical Properties of Ultra-Lightweight Foamed Concrete Incorporating Alkali Treated Banana Fibre

Cited by 13 publications

References 24 publications

Studies on durability properties of natural fibre-reinforced green lightweight foamed concrete employing industrial hemp fibres

Studies on durability properties of natural fibre-reinforced green lightweight foamed concrete employing industrial hemp fibres

Enhanced fresh and hardened properties of foamed concrete modified with nano-silica

Formulating Eco-Friendly Foamed Mortar by Incorporating Sawdust Ash as a Partial Cement Replacement

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