Mechanical and Thermal Properties of Synthetic Polypropylene Fiber–Reinforced Renewable Oil Palm Shell Lightweight Concrete

Loh, Leong Tatt; Yew, Ming Kun; Yew, Ming Chian; Beh, Jing Han; Lee, Foo Wei; Lim, Siong Kang; Kwong, Kok Zee

doi:10.3390/ma14092337

Cited by 15 publications

(9 citation statements)

References 29 publications

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“…This is particularly correct where fibre prolongs concrete's ability to sustain the load and withstand large deformation without fracturing into pieces. Similar behaviour has been reported for PP and PVC fibre OPS lightweight concrete Yew et al, 2016;Loh et al, 2021). The failure pattern of CLLWAC-BPP0% and CLLWAC-BPP0.45%, as shown in Figure 6.…”

Section: 4splitting Tensile Strengthsupporting

confidence: 80%

Mechanical Properties of Barchip Polypropylene Fibre-reinforced Lightweight Concrete Made With Recycled Crushed Lightweight Expanded Clay Aggregate

Yew

Beh

et al. 2021

Front. Mater.

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Concrete is one of the broadly used construction materials in the construction industry. This research intends to recommend the replacement of conventional coarse aggregates with recycled lightweight expanded clay aggregate (LECA) which offers several advantages such as lightweight, low cost, and easy availability. Lightweight concrete (LWC) offers numerous benefits; therefore, many researchers are using lightweight aggregate to produce lightweight structural composites concrete to compensate heavy loads by reducing the concrete self-weight due to lower density of lightweight concrete, improving in thermal properties and fire resistance, saving the cost of transportation and handling of precast units in the site. Different percentages (0, 0.15, 0.30, and 0.45%) of volume fraction of barchip polypropylene (BPP) fibre have been incorporated to improve the mechanical properties of lightweight aggregate concrete (LWA) concrete. In this study, the mixture of crushed lightweight expanded clay aggregate (CLECA) and barchip polypropylene (BPP) fibre have been used to achieve compressive strength between 28 and 37 MPa at 28-days with an oven-dry density ranged between 1900 and 2000 kg/m3. It is found that the inclusion of BPP fibres at an optimum volume fraction concrete enhances the compressive strength, splitting tensile strength and modulus of rupture. The compressive strength of the lightweight aggregate concrete containing 0.45% volume fraction of BPP fibre (CLLWAC-BPP0.45%) had achieved the highest compressive strength of 37 MPa at 28-days with a significant increment of about 31% compared to plain concrete. Hence, the findings of this research showed that the development of eco-friendly lightweight structural composites can be used as an alternative solution for conventional lightweight concrete, infrastructure and marine fields application.

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Section: 4splitting Tensile Strengthsupporting

confidence: 80%

Mechanical Properties of Barchip Polypropylene Fibre-reinforced Lightweight Concrete Made With Recycled Crushed Lightweight Expanded Clay Aggregate

Yew

Beh

et al. 2021

Front. Mater.

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“…Based on the result from figure 2, it can be observed that the compressive strength decreases when the OPS and w/c ratio increase. An inversely proportional relationship is found between slump diameter and compressive strength, which can be explained that OPS absorbed the water from the mortar due to the porous structure [3]. LWFC-CTR can resist higher compressive force compared to LWFC-OPS5.…”

Section: Compressive Strengthmentioning

confidence: 87%

“…In this study, Orang Kuat Type I Ordinary Portland Cement was used in this study, which is in accordance with the standard of ASTM: C150/C150M-12. The specific gravity for this cement was 3.14 g/cm 3 . Local fine sand was used and passing through the 600µm of sieve.…”

Section: Materials and Me Thodsmentioning

confidence: 97%

“…Due to the environmental issues caused by OPS, it is proposed to reuse and chosen as a partial replacement material of aggregate to produce lightweight foamed concrete as OPS is a lightweight aggregate. Limited natural resources such as sands, rocks and gravel can be protected and provide sustainable development of construction [3]. The advantages of using bio-based aggregate in lightweight foamed concrete are to reduce the use of In this research, the oil palm shell acts as a replacement for sand with a volume fraction of 5% under different w/c ratios 0.52, 0.56 and 0.60.…”

Section: Introductionmentioning

confidence: 99%

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Strength and Acoustics Properties of Lightweight Foamed Concrete Incorporating of Bio-Based Aggregate

Yong,

Yew,

Sieng

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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This paper investigates the incorporation of bio-based aggregate in lightweight foam concrete (LWFC). The aim of this research is to determine the strength and acoustics properties of lightweight foamed concrete incorporating 5% bio-based aggregate (LWFC-OPS5). A targeted density of 1100 +/- 100 kg/m3 of LWFC-OPS5 is produced and achieved a compressive strength of 3 MPa. A total of six mixes containing different water to cement (w/c) ratios 0.52, 0.56 and 0.60 with 0% and 5% of OPS replacement were designed. From the result, LWFC-OPS5-0.52 had showed the highest strength properties at 28 days, which are recorded at 3.59 MPa and 1.75 MPa respectively. It also showed the highest density among the LWFC-OPS5 mix design which is 1180 kg/m3 under fresh density conditions. LWFC-OPS5-0.56 has showed the most significant increase in compressive strength and flexural strength at 28 days, which have an increment of 30 - 40% from 7 days’ results. On the other hand, LWFC-OPS5-0.60 has increased about 36.81%, 32.73% and 63.83% compared to LWFC-CTR. All cube specimens have achieved above 3 MPa of compressive strength except LWFC-OPS5-0.60 due to its lowest fresh density. From the acoustics properties test results, LWFC-OPS5-0.56 had showed the maximum sound absorption coefficient. Thus, this research proved that LWFC-OPS5 can be used for different applications such as wall panels, roof tiles, sound barriers and etc.

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“…Furthermore, lightweight foamed concrete is produced by adding foaming agent in which up to 75% of air-voids can be entrapped in mortar mix. According to Loh et al, one of the most popular techniques to produce lightweight concrete is to incorporate lightweight aggregate [34]. From the previous study, high strength lightweight concrete incorporated plant-based aggregate is generally obtained a compressive strength within the range of 40-54 MPa and oven-dry density less than 1900 kg/m 3 [26].…”

mentioning

confidence: 99%

Effect of Pre-Soaking Treatment Method on Plant-Based Aggre-Gate for Production of High-Strength Lightweight Concrete

Yew¹,

Yew²,

Beh³

et al. 2023

Preprint

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This research investigates the effect of pre-soaking treatment on plant-based aggregate using a wet grout binder to formulate a high-strength lightweight concrete (HSLWC). The surface modification utilising a novel grout soaking technique with various water-to-cement (w/c) ratios indicated a new method of approach for the recent development of lightweight plant-based aggregate (LWPA). In this experiment, the fresh and hardened properties of modified LWPA lightweight concrete were assessed by verifying their workability, densities, compressive and split tensile strengths towards the modulus of elasticity. The results showed that pre-soaking plant-based lightweight aggregate (w/c: 0.6, 0.8, 1.0, and 1.2) slightly increased the density of the samples compared to untreated LWPA. The oven-dry density of treated and untreated LWPA is controlled in the range of HSLWC. The outcomes indicated that the workability of the surface- modified LWPA has significant improvement up to 40% in 6 min for (TDS)/0.6 sample compared to the original LWPA. The mechanical properties of the LWPA concrete with surface modification method exhibit substantial increment of compressive strength, split tensile strength, and modulus of elasticity were recorded at 22%, 26%, and 34%, respectively. Significantly, the findings from this scientific method revealed that the pre-soaking treatment method on LWPA has shown to be a highly recommended technique in improving interfacial bonding while performing as one of the most promising solutions to improve the properties of lightweight concrete.

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Mechanical and Thermal Properties of Synthetic Polypropylene Fiber–Reinforced Renewable Oil Palm Shell Lightweight Concrete

Cited by 15 publications

References 29 publications

Mechanical Properties of Barchip Polypropylene Fibre-reinforced Lightweight Concrete Made With Recycled Crushed Lightweight Expanded Clay Aggregate

Mechanical Properties of Barchip Polypropylene Fibre-reinforced Lightweight Concrete Made With Recycled Crushed Lightweight Expanded Clay Aggregate

Strength and Acoustics Properties of Lightweight Foamed Concrete Incorporating of Bio-Based Aggregate

Effect of Pre-Soaking Treatment Method on Plant-Based Aggre-Gate for Production of High-Strength Lightweight Concrete

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