Investigation of metakaolin and steel fiber addition on some mechanical and durability properties of roller compacted concrete

Abu-Bakr, Masood; Mahmood, Hersh F.; Mohammed, Azad A.

doi:10.1016/j.cscm.2022.e01136

Cited by 6 publications

(3 citation statements)

References 5 publications

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“…Although mortar with a 3% WWA component has low densities, no combinations can be categorized as lightweights since their maximum density is 1800 kg/m 3 [ 71 ]. A study also conclude that combination of metakaolin and steel fibers improved durability of concrete for road construction [ 72 ].…”

Section: Durabilitymentioning

confidence: 99%

A Review on Strength and Durability Properties of Wooden Ash Based Concrete

et al. 2022

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The partial replacement of cement in concrete with other building materials has come to light because of research on industrial waste and sustainable building practices. Concrete is made more affordable by using such components, and it also helps to ease disposal worries. Ash made by burning wood and other wood products is one example of such a substance. Many researchers focused on the utilization of wooden ash (WA) as a construction material. However, information is scattered, and no one can easily judge the impact of WA on concrete properties which restrict its use. Therefore, a details review is required which collect the past and current progress on WA as a construction material. relevant information. This review aims to collect all the relevant information including the general back of WA, physical and chemical aspects of WA, the impact of WA on concrete fresh properties, strength properties, and durability aspects in addition to microstructure analysis. The results indicate the WA decreased the slump and increased the setting time. Strength and durability properties improved with the substitution of WA due to pozzolanic reaction and micro-filling effects. However, the optimum dose is important. Different research recommends different optimum doses depending on source mix design etc. However, the majority of researcher suggests a 10% optimum substitution of WA. The review also concludes that, although WA has the potential to be used as a concrete ingredient but less researchers focused on WA as compared to other waste materials such as fly ash and silica fume etc.

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Section: Durabilitymentioning

confidence: 99%

A Review on Strength and Durability Properties of Wooden Ash Based Concrete

et al. 2022

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“…A large amount of familiarity with a disease entity is necessary for accessibility criteria, which are subsequently used as a reminder or memory when a remarkable characteristic or expression is observed during clinical encounters. Those two algorithms do not take prevalence into account [13].…”

Section: Heuristicsmentioning

confidence: 99%

Critical analysis of methodology and cognitive errors in clinical and emergency decisions in medicine

Chahda

Amro

2022

ijhs

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Clinical decision making CDM) is a type of qualitative research that looks at the cognitive processes in designing healthcare decisions. Choosing the right choice could have significant effects. Triage is a domain where judgment calls need to be aware of the actions they are performing, the reasons for it, and what steps to take to have a good result. The utilization of technological advances and an examination of client classification techniques are useful concepts that facilitate wise decisions. The constant aspect of the decision-making process is emphasized in the handling of patients. A crucial viewpoint for urgent care and critical decision-making involving mistakes has been offered.

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“…As the proportion of metakaolin and steel fiber rises, permeability consistently decreases. However, freezing and thawing RCC, especially with added steel fiber, reduces weight and compressive strength [4].…”

Section: Introductionmentioning

confidence: 99%

Assessment of strength and dynamic elastic modulus of roller compacted concrete with Metakaolin as supplementary cementitious material through ultrasonic pulse velocity method

Samanasa,

Varun Teja,

Byagari

2024

J. Phys.: Conf. Ser.

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Experimental studies on roller compacted concrete (RCC) paving mixes using ultrasonic pulse velocity (UPV) technique were presented in this paper. Mix was proportioned using soil compaction principles and Metakaolin (MK) was used as partial replacement of cement in the ranges of 5% to 30%. Compressive, tensile, flexural strengths, UPV and dynamic elastic modulus values were determined at curing period 24 hours to 90 days. The UPV values of RCC control mix at 1 day are lower for all combination of mixes. But, the UPV values are considerably increased after 3,7, 14,28 and 90 days of curing. Empirical relationships were proposed between UPV, strength and Dynamic Elastic properties of concrete. A new regression equation was proposed to evaluate dynamic elastic modulus of RCC in terms of curing age and proportion of cement replacement with Metakaolin. The equation was (E d )t = 97.16(𝑡)0.05 + 0.05(Mk) − 62.

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Investigation of metakaolin and steel fiber addition on some mechanical and durability properties of roller compacted concrete

Cited by 6 publications

References 5 publications

A Review on Strength and Durability Properties of Wooden Ash Based Concrete

A Review on Strength and Durability Properties of Wooden Ash Based Concrete

Critical analysis of methodology and cognitive errors in clinical and emergency decisions in medicine

Assessment of strength and dynamic elastic modulus of roller compacted concrete with Metakaolin as supplementary cementitious material through ultrasonic pulse velocity method

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