Valorization of Wastes from Power Plant, Steel-Making and Palm Oil Industries as Partial Sand Substitute in Concrete

Ong, Seng Kuan; Mo, Kim Hung; Jumaat, Mohd Zamin; Ling, Tung-Chai

doi:10.1007/s12649-017-9937-6

Cited by 17 publications

(6 citation statements)

References 38 publications

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“…The UPV values of the L0OPC35GCBA15 and L8OPC35GCBA15 at 28 days were comparable to the control mix, L0OPC50 and L8OPC50 at 7 days. Ong, Mo [11] also discovered a little variation in UPV values between traditional concrete and CBA concrete. Besides, all the specimens showed increased UPV values at a later curing age due to C-S-H production caused by cement hydration and decreased voids in the mortar [43].…”

Section: Ultrasonic Pulse Velocity (Upv)mentioning

confidence: 87%

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Properties of Concrete Containing Large Volumes of Ground Granulated Blast Furnace Slag and Ground Coal Bottom Ash with Lime Kiln Dust

Ban,

Hui,

Jia

et al. 2023

IOP Conf. Ser.: Mater. Sci. Eng.

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Currently, there is no report on the combined use of ground coal bottom ash (GCBA) and ground granulated blast furnace slag (GGBS) as supplementary cementitious material (SCM) with lime kiln dust (LKD) as an additive in mortar. Hence, the current work aimed to investigate the impact of the addition of LKD on the properties of ternary blended cement mortar consisting of a large volume of GCBA and GGBS as SCM. The total substitution level of cement was up to 80%, where 50% of GGBS was combined with 0 to 30% of ground CBA. LKD was used with a content of 0%, 4% and 8%. A polycarboxylate-ether-based superplasticiser was used to achieve the mortar’s flow diameter of 200 ± 10 mm. Also, the fine aggregate-to-binder and water-to-binder ratios were fixed at 3.0 and 0.4, respectively. The result revealed that the setting time of the mortar increased by increasing the cement replacement level by GCBA. Besides, the setting time was reduced with increased LKD content. All the mortar mixtures are considered good quality according to the ultrasonic pulse velocity (UPV) results. The UPV values decrease with the increased GCBA replacement ratio but increase with extended curing ages. The mortar incorporating up to 15% GCBA achieved comparable or greater strength than the control mortar (50% OPC and 50% GGBS) at a curing age beyond 28 days. Moreover, increased strength performance was noticed with increased LKD content from 0% to 8%.

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Section: Ultrasonic Pulse Velocity (Upv)mentioning

confidence: 87%

“…Besides, coal is one of the world's most essential energy sources, contributing to about 40% of global electricity generation [10]. For example, seven coal-fired power stations generate around 9000 MW of energy [11]. Two waste products developed in coal power plants are coal bottom ash (CBA) and coal fly ash (CFA).…”

Section: Introductionmentioning

confidence: 99%

Properties of Concrete Containing Large Volumes of Ground Granulated Blast Furnace Slag and Ground Coal Bottom Ash with Lime Kiln Dust

Ban,

Hui,

Jia

et al. 2023

IOP Conf. Ser.: Mater. Sci. Eng.

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“…Possible such substitutes are steel slag (Rahmawati & Saputro, 2018), slag from the refining of lead and zinc (Tripathi & Chaudhary, 2016), and rapid cooling electric arc furnace oxidizing slag (Kim, Koh, & Pyo, 2016). Other industrial wastes, such as palm oil clinker, coal bottom ash (Ong, Mo, Alengaram, Jumaat, & Ling, 2018), fly ash (Rafieizonooz et al., 2017), fixated phosphate industry waste (Lieberman et al., 2018), and waste from granite and marble processing (Singh, Tiwari, Nagar, & Agrawal, 2016) can also be used to partially replace sand. Li and Yang (2017) examined how to use demolition waste of old concrete as fine aggregates.…”

Section: Discussionmentioning

confidence: 99%

Do we have enough natural sand for low‐carbon infrastructure?

Ioannidou

Sonnemann

Suh

2020

J of Industrial Ecology

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“…Previous studies have suggested that bottom ash can be used as a mineral admixture for concrete after (1) grinding to increase its pozzolanic reactivity [8], (2) sieving to increase its fineness [9], (3) the addition of a superplasticizer to reduce its water absorption [10], or (4) putting it in a cement kiln as a raw material [11]. However, it is difficult to use raw bottom ash directly as a mineral admixture for concrete because its use generally decreases the workability of fresh concrete due to the angular grain texture [12] and bottom ash has a lower pozzolanic reactivity than fly ash due to its larger particle size [12].…”

Section: Introductionmentioning

confidence: 99%

Use of Coal Bottom Ash and CaO-CaCl2-Activated GGBFS Binder in the Manufacturing of Artificial Fine Aggregates through Cold-Bonded Pelletization

et al. 2020

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This study investigated the use of coal bottom ash (bottom ash) and CaO-CaCl2-activated ground granulated blast furnace slag (GGBFS) binder in the manufacturing of artificial fine aggregates using cold-bonded pelletization. Mixture samples were prepared with varying added contents of bottom ash of varying added contents of bottom ash relative to the weight of the cementless binder (= GGBFS + quicklime (CaO) + calcium chloride (CaCl2)). In the system, the added bottom ash was not simply an inert filler but was dissolved at an early stage. As the ionic concentrations of Ca and Si increased due to dissolved bottom ash, calcium silicate hydrate (C-S-H) formed both earlier and at higher levels, which increased the strength of the earlier stages. However, the added bottom ash did not affect the total quantities of main reaction products, C-S-H and hydrocalumite, in later phases (e.g., 28 days), but simply accelerated the binder reaction until it had occurred for 14 days. After considering both the mechanical strength and the pelletizing formability of all the mixtures, the proportion with 40 relative weight of bottom ash was selected for the manufacturing of pilot samples of aggregates. The produced fine aggregates had a water absorption rate of 9.83% and demonstrated a much smaller amount of heavy metal leaching than the raw bottom ash.

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Valorization of Wastes from Power Plant, Steel-Making and Palm Oil Industries as Partial Sand Substitute in Concrete

Cited by 17 publications

References 38 publications

Properties of Concrete Containing Large Volumes of Ground Granulated Blast Furnace Slag and Ground Coal Bottom Ash with Lime Kiln Dust

Properties of Concrete Containing Large Volumes of Ground Granulated Blast Furnace Slag and Ground Coal Bottom Ash with Lime Kiln Dust

Do we have enough natural sand for low‐carbon infrastructure?

Use of Coal Bottom Ash and CaO-CaCl2-Activated GGBFS Binder in the Manufacturing of Artificial Fine Aggregates through Cold-Bonded Pelletization

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