A comparative assessment of the physical and microstructural properties of waste garnet generated from automated and manual blasting process

Usman, Kabiru Rogo; Hainin, Mohd Rosli; Satar, Mohd Khairul Idham Mohd; Warid, Muhammad Naqiuddin Mohd; Usman, Aliyu; Al-Saffar, Zaid Hazim; Bilema, Munder

doi:10.1016/j.cscm.2020.e00474

Cited by 11 publications

(16 citation statements)

References 36 publications

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“…According to [ 37 ], this phenomenon is caused by the water demand of the garnet. Similar results were presented by Usman et al [ 39 ]; the total water absorption by garnet is lower, which increases the workability of the mix. Muttashar et al [ 38 ] showed that the workability of the mix increased by 29% when 100% of natural aggregate was replaced with garnet.…”

Section: Discussionsupporting

confidence: 89%

“…In addition, the increase in demand for natural sand not only causes its depletion, but also adversely affects the environment by causing, among others, the dredging of river beds, lowering of the water table and destruction of embankments [ 36 , 37 , 38 ]. The solution is to search for alternative aggregates [ 39 , 40 ]. In order to alleviate the pressure on the environment and achieve sustainable development, one of the possible solutions is to reuse waste materials for the production of construction materials.…”

Section: Introductionmentioning

confidence: 99%

“…The mortar containing 100% garnet showed the highest density and compressive strength, and the gamma and neutron radiation transmissions decreased as the proportion of garnet residue increased. Usman et al [ 39 ] used garnets to obtain ordinary and self-compacting geopolymer concrete. This research showed that workability increases with the increase in garnet content.…”

Section: Introductionmentioning

confidence: 99%

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Early-Age Mechanical Properties of 3D-Printed Mortar with Spent Garnet

et al. 2021

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This study determines the effect of spent garnet as a replacement for natural sand in 3D-printed mortar at early ages. Five mixes with different spent garnet amounts were prepared (0%, 25%, 50%, 75% and 100% by volume). The ratio of binder to aggregate remained unchanged. In all mixes the water/binder ratio was assumed as a constant value of 0.375. Tests were performed to confirm the printability of the mix (a path quality test using a gantry robot with an extruder). Determinations of key buildability properties of the mix (green strength and Young’s Modulus) during uniaxial compressive strength at 15 min, 30 min and 45 min after adding water were conducted. A hydraulic press and the GOM ARAMIS precision image analysis system were used to conduct the study. The results showed that an increase in spent garnet content caused a decrease in green strength and Young’s Modulus (up to 69.91% and 80.37%, respectively). It was found that to maintain proper buildability, the recommended maximum replacement rate of natural sand with garnet is 50%. This research contributes new knowledge in terms of using recycled waste in the 3D printing technology of cementitious materials.

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Section: Discussionsupporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Early-Age Mechanical Properties of 3D-Printed Mortar with Spent Garnet

et al. 2021

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“…The global construction industry emits 23% of the total CO 2 produced by global economic activity (Thomas 2018). According to the worldwide cement market report in 2021, world production and consumption of cement are high and progression of the underlying annual growth expansion every year, which has increased steadily since 1970 (Usman et al, 2021). Due to the increased population and lack of ingredients of cement, there is a demand for cement manufacturing (Shaik et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

An investigation on the mechanical and microstructural properties of pigeon pea stalk ash concrete: An approach towards environmental sustainability

Krishnan

Subramanian

2022

Preprint

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The concept of sustainability in agricultural residue management has gained increasing traction around the world in recent years. After harvesting, large volumes of waste are generated that are often dumped into the environment, causing pollution. In addition to preventing environmental degradation, these wastes can also be used in the concrete industry to reduce mineral resource depletion. With this approach, sustainable development is possible. According to the results of this investigation, the effect of pigeon pea stalk ash (PPSA) as a partial replacement of cement in concrete, a series of experimental tests were performed. It has been found that the compressive strength increases for the mixes from 4 to 8% of cement replacement. In contrast, the strength decreases when the percentage replacement of pigeon pea stalk ash with cement exceeds 8%. Based on the experimental results, concrete infused with 8% pigeon pea stalk ash increased its compressive strength by 6.96%. The compressive strength decreased with a further increase in PPSA content. Although the split tensile strength value of PPSA8 concrete was same value compared to the control concrete, even an 8% PPSA concrete has higher strength than other replacement levels. Concrete with 8% PPSA content was observed to have a higher flexural strength than control concrete. PPSA concrete was prepared with pigeon pea stalk waste up to 8% substitution of cement. PPSA concrete has reduced permeability and higher resistance to acid attack. All the strength and durability test results revealed that PPSA concrete type was superior to the control concrete in terms of mechanical qualities and durability characteristics. The present work discusses concrete's improved economic and environmental aspects with incorporated pigeon pea stalk ash. Hence, this study points toward the highest potential use of more concerned about agricultural wastes like pigeon pea stalk ash in green concrete.

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“…Therefore, recently, several types of research have been carried out to examine the validity of the usage of alternative waste material like (reclaimed asphalt pavement, waste cooking oil, plastic, geopolymer, and scrap tires etc.) in the hot-mix asphalt (HMA) pavement, which could minimize the deterioration of the roads [6][7][8][9][10]. Utilizing recycled materials as an eco-friendly substitute is divided into three major classifications: performance, economic, and environmental benefits [11,12].…”

Section: Introductionmentioning

confidence: 99%

Feasibility of Utilizing Waste Polyethylene Terephthalate as Replacement in Asphalt binder Mixture

Almahdi

Ahmeda

Adwan

et al. 2021

Kbes

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The feasibility of utilizing waste material for road construction is encouraging as it can decrease waste material harmful to the environment. Hence, a more sustainable method and a meticulous study of the available admixtures utilized to substitute standard asphalt binders with waste material must be conducted. However, there are several concerns and doubts about the real situation arising from the chemical and physical traits, as well as the mechanical performance issuing from the integration of waste material within the asphalt pavement to alleviate roads surface's permanent deformation. This investigation was carried out to study physical improvements made on ACW-14 bitumen by adding waste Polyethylene Terephthalate (PET) to serve as a partial replacement for bitumen content compared to normal, conventional 80/100 bitumen physical and rheological behavior. PET percentage added to the bitumen content was 10%, 8%, 6%, 4% and 2% of optimum bitumen content weight. The outcomes concluded that the best performance of bitumen on its density, VTM, VFB, flow, stability, and stiffness was achieved when 5.8% of Optimum Modified-Bitumen Content using PET. All the results obtained have been compared according to JKR Standards results, and the conclusion has fulfilled these requirements.

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A comparative assessment of the physical and microstructural properties of waste garnet generated from automated and manual blasting process

Cited by 11 publications

References 36 publications

Early-Age Mechanical Properties of 3D-Printed Mortar with Spent Garnet

Early-Age Mechanical Properties of 3D-Printed Mortar with Spent Garnet

An investigation on the mechanical and microstructural properties of pigeon pea stalk ash concrete: An approach towards environmental sustainability

Feasibility of Utilizing Waste Polyethylene Terephthalate as Replacement in Asphalt binder Mixture

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