Development of Self-Consolidating High Strength Concrete Incorporating Treated Palm Oil Fuel Ash

Alsubari, Belal; Shafigh, Payam; Jumaat, Mohd Zamin

doi:10.3390/ma8052154

Cited by 58 publications

(29 citation statements)

References 24 publications

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“…10-50% substitution of OPC by burnt POFA made stronger concrete. 20% replacement made a rise over 20% in 56 days [4]. The similar positive effect is expected in the case of mortar.…”

Section: Strengthsupporting

confidence: 74%

“…It increases SiO2 content, reduces carbon and loss of ignition content and gives finer particles with 52% more surface area. Study showed a constant up trend in slump flow till 50% replacement of OPC by treated POFA and final slump flow was 730mm for concrete [4]. A similar improvement is expected for mortar.…”

Section: Flowabilitysupporting

confidence: 70%

“…Burnt POFA was a little better than ground POFA. After 1800 hours' exposer, 10% treated POFA saved about 25% loss; while 50% treated POFA had a mass loss less than 2% [4].…”

Section: Acid Resistancementioning

confidence: 95%

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Recent trends in development of self‐flowing mortar incorporating supplementary cementitious materials

Sakir

Kaish

Mutalib

2016

Proceedings of 2nd International Electronic Conference on Materials

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Self-flowing mortar (SFM) is being popular in recent time. Its' easy-placement nature makes it suitable for narrow or congested reinforced places. To comply with modern-age needs, many supplementary cementitious materials (SCMs) are gaining importance nowadays. Using industrial and agricultural wastes as SCM, ensures proper management of many hazardous materials and saves cost as well. Incorporation of these two techniques can offer cost-effective and environment-friendly solutions to many construction problems. Many researchers studied the effect of different SCMs on mortar properties in recent years. The objective of this study is to summarize the findings of recent experiments. This will help the experts of this field to optimize their mix design easily, as well as, the researchers to find the research gap and determine the direction of their future studies.

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“…10-50% substitution of OPC by burnt POFA made stronger concrete. 20% replacement made a rise over 20% in 56 days [4]. The similar positive effect is expected in the case of mortar.…”

Section: Strengthsupporting

confidence: 74%

Section: Flowabilitysupporting

confidence: 70%

See 1 more Smart Citation

Recent trends in development of self‐flowing mortar incorporating supplementary cementitious materials

Sakir

Kaish

Mutalib

2016

Proceedings of 2nd International Electronic Conference on Materials

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“…This extra volume of binder can absorb more water, which in turn affected the workability of concrete. Comparable results were also reported by Alsubari et al (2015) [46] specifically that an increase in the replacement level of POFA with low specific gravity affects the workability of concrete. Further, Sata et al (2007) [24] attributed the reduction in slump to the high absorbency of POFA that resulted in lower slump values.…”

Section: Workabilitysupporting

confidence: 72%

Evaluation of Industrial By-Products as Sustainable Pozzolanic Materials in Recycled Aggregate Concrete

et al. 2017

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Abstract:The utilization of traditional supplementary cementitious materials (SCMs) has become more intense in the concrete industry due to their better long-term properties. This research evaluates the fresh and hardened properties of concrete that was developed using a high amount of recycled aggregate (RA) incorporated with sustainable SCMs. Rice husk ash (RHA), palm oil fuel ash (POFA) and palm oil clinker powder (POCP) were used as SCMs at 10%, 20% and 30% cement replacement levels to investigate their positive role in the performance of RA concrete. The results showed that the 10% replacement level of cement by RHA produced the highest strength at all ages tested. Although POFA and POCP were found to negatively affect the strengths at an early age, the hardened properties showed improvement after a relatively long curing time of 90 days. In addition, the targeted compressive strength of 30 MPa was achieved by using SCMs at levels up to 30%. Overall, the sustainable SCMs can reduce the quantity of cement required for concrete production, as well as reduce the conventional cement with the industrial by-products, which are considered as waste materials; thus, the concrete produced using up to 30% of SCMs as a replacement for cement could be considered as more environmentally-friendly concrete.

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“…With the advancement of superplasticising technology over the past decades, lower W/CM ratio could be achieved while the concrete could remain highly workable, and this can be translated to high-strength performance. However, though different high-strength SCC mixes had been developed in laboratories [15,16], the same range of strength has not yet been commonplace in practice. One of the main reasons of limited strength is that the W/CM ratio has not been minimised by effective utilisation of SP.…”

Section: Introductionmentioning

confidence: 99%

Development of Sustainable High-Strength Self-Consolidating Concrete Utilising Fly Ash, Shale Ash and Microsilica

Ng¹,

Rudžionis²,

Ng³

et al. 2018

Sustainable Buildings - Interaction Between a Holistic Conceptual Act and Materials Properties

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With high flowability and passing ability, self-consolidating concrete (SCC) does not require compaction during casting and can improve constructability. The favourable properties of SCC have enabled its widespread adoption in many parts of the world. However, there are two major issues associated with the SCC mixes commonly used in practice. First, the cement content is usually at the high side. Since the production of cement involves calcination at high temperature and is an energy-intensive process, the high cement content imparts high embodied energy and carbon footprint to the SCC mixes. Besides, the exothermic reaction of cement hydration would cause high heat generation and early thermal cracking problem that would impair structural integrity and necessitate repair. Second, the strength is usually limited to around grade 60, which is considered as medium strength in nowadays achievable norm. With a view to develop sustainable high-strength self-consolidating concrete (HS-SCC), experimental research utilising fly ash (FA), shale ash (SA), and microsilica (MS) in the production of SCC has been conducted, as reported herein.

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Development of Self-Consolidating High Strength Concrete Incorporating Treated Palm Oil Fuel Ash

Cited by 58 publications

References 24 publications

Recent trends in development of self‐flowing mortar incorporating supplementary cementitious materials

Recent trends in development of self‐flowing mortar incorporating supplementary cementitious materials

Evaluation of Industrial By-Products as Sustainable Pozzolanic Materials in Recycled Aggregate Concrete

Development of Sustainable High-Strength Self-Consolidating Concrete Utilising Fly Ash, Shale Ash and Microsilica

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