Comparative Study of Physical and Mechanical Properties of Machine and Manually Crushed Brick Aggregate Concrete

Islam, Jahidul; Rahman, Jesika; Nawshin, Sadia; Islam, Mohammad Majharul

doi:10.47981/j.mijst.08(01)2020.188(01-09)

Cited by 6 publications

(4 citation statements)

References 5 publications

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“…Water absorption is analyzed, which is the core of the membrane geopolymer, as per astM c 140 [31]. Water absorption test is utilized to determine water consumed under certain circumstances.…”

Section: Test and Analysis Methodsmentioning

confidence: 99%

Archives of Metallurgy and Materials

Ibrahim,

Wan Ibrahim,

Al Bakri Abdullah

et al. 2021

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EffEct of Solid-to-liquidS and na 2 Sio 3 -to-naoH Ratio on MEtakaolin MEMbRanE GEopolyMERSGeopolymer is synthesized by polycondensation of sio 4 and alo 4 aluminosilicate complexes, tetrahedral frames linked with shared sialate oxygen. this paper studies the effect of the solids-to-fluids (s/l) and na 2 sio 3 /naoh proportions on the preparing of metakaolin inorganic membrane geopolymer. by consolidating a mixture of metakaolin with sodium hydroxide, sodium silicate and foaming agent, the geopolymer membrane was made in required shape about 1 cm and cured at 80°c for 24 hours. after the curing process, the properties of the samples were tested on days 7. sodium silicate (na 2 sio 3 ) and sodium hydroxide (naoh) solution were utilized as an alkaline activator with a naoh fixation fixed at 10 M. the geopolymer inorganic membrane tests were set up with various s/l proportions (0.8, 1.0, 1.2 and 1.4) and na 2 sio 3 /naoh proportions (0.5, 1.0, 1.5, 2.0 and 2.5). aluminium (al) powder as a foaming agent was used to create bubbles in porous structure and provide details on the development of membrane geopolymers. this metakaolin membrane, based on the geopolymer, was synthesized by a suspension that depends on the fast cementing mechanism of high-temperature slurries. Porous geopolymeric circles provided a homogeneous composition and quantitative distribution of pores. the water absorption, density, impact toughness testing and microstructure analyses were studied. however, considering the promising results, an adjustment in the mix design of the metakaolin inorganic membrane geopolymer mixtures could increase their mechanical properties without negatively affecting the mechanical properties and porosity, making these sustainable materials a suitable alternative to traditional porous cement concrete.Keywords: Geopolymer; metakaolin membrane; porous geopolymer; solid-to-liquid (s/l) ratio and na 2 sio 3 /naoh ratio 4 GheorGhe asachi technical uniVersity of iasi, faculty of Materials science and enGineerinG, 700050, iasi, roMania

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Section: Test and Analysis Methodsmentioning

confidence: 99%

Archives of Metallurgy and Materials

Ibrahim,

Wan Ibrahim,

Al Bakri Abdullah

et al. 2021

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“…Bangladesh has significantly low rock formations available for using natural stone aggregate, and in most cases, stone aggregates have to be imported at a higher price [46]. Such shortcoming is avoided by adopting burnt brick clay as the filler material in concrete [47]. Many bricks were purchased from the local brickfields and crushed manually into the desired size to form coarse brick aggregate, as shown in Figure 2(a).…”

Section: Brickmentioning

confidence: 99%

Comparative Study of Concrete with Polypropylene and Polyethylene Terephthalate Waste Plastic as Partial Replacement of Coarse Aggregate

Islam¹

2022

Advances in Civil Engineering

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Production of plastic has risen significantly in the last 60 years worldwide, and around 10% of this plastic is turned into solid waste. This plastic becomes an environmental hazard in the absence of appropriate recovery methods. Incorporating waste plastic in concrete is an alternate way to recycle this waste plastic. Polypropylene (PP) and polyethylene terephthalate (PET) are two of the most widely used plastic scarcely recovered and recycled. Therefore, in the present study, both PP and PET are used as a partial replacement (10%, 20%, and 30% by volume) of coarse aggregate. These concretes are compared for three different water-cement ratios (0.42, 0.48, and 0.57). Properties such as workability, density, compressive, and tensile strengths are compared. Concrete with PP aggregate has shown as much as 39% higher compressive strength and 9% lower density than brick aggregate concrete. On the other hand, concrete with PET aggregate has displayed as much as 53% reduction in compressive strength compared to the reference concrete. Furthermore, it demonstrates higher workability and lower density. Equations are proposed to describe relationships between compressive and splitting tensile strengths of concrete, including the effect of plastic aggregate percentages. Cost analysis of the concrete reveals that incorporating waste plastic in concrete is more expensive than the regular brick aggregate concrete. Still, up to 10%, PP can be used in concrete, considering the gain in compressive strength.

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“…One of the possible solutions is to reuse them in such a way where these C&D wastes cannot affect the environment. Various research has been conducted to reuse the alternative materials like recycled stones and crumb rubber (Hossain et al, 2019;Shahjalal et al, 2019;Shahjalal et al, 2021), FRP scrap aggregate (Alam et al, 2013), Poly-Ethylene Terephthalate (PET) (Islam et al, 2018;Islam et al, 2016), brick (Islam et al, 2020) recycled brick (Mohammed et al, 2015), etc.…”

Section: Introductionmentioning

confidence: 99%

Effect of Admixture on Physical and Mechanical Properties of Recycled Brick Aggregate Concrete

Islam¹,

Shahjalal²,

Hasan³

et al. 2021

MIST International Journal of Science and Technology

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With the increasing population of the world, the rate of development of infrastructure is increasing day by day; which has placed a massive demand for natural aggregates. Besides, huge amount of demolished construction wastes are generated all over the world which creates pressure on the environment as well as landfills. Therefore, it is necessary to find a sustainable solution to adopt these C&D wastes as an alternative to natural aggregates for construction purposes. Therefore, the objective of the present study is to explore the influence of superplasticizers while adopting recycled brick aggregate (RBA) in the sustainable concrete application as a coarse aggregate. Six different mixes are considered with 100% replacement of recycled brick aggregate and three diverse water-cement (w/c) ratios, such as 0.40, 0.45, and 0.50. To improve the workability and mechanical characteristics of concrete a superplasticizer is used as an admixture. Fresh properties of concrete, compressive strength at normal and high temperatures, flexural strength and splitting tensile strength are presented. The results indicate that addion of superplasticizer improves slump values and reduces air voids of concrete. Although strengths of RBA concrete are lesser than the virgin brick aggregate concrete, they are still satisfactory in the application for structural concrete and can be also significantly improved by incorporating admixture. Finally, this research will help to recycle the brick aggregate instead of dumping it as waste in a landfill.

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Comparative Study of Physical and Mechanical Properties of Machine and Manually Crushed Brick Aggregate Concrete

Cited by 6 publications

References 5 publications

Archives of Metallurgy and Materials

Archives of Metallurgy and Materials

Comparative Study of Concrete with Polypropylene and Polyethylene Terephthalate Waste Plastic as Partial Replacement of Coarse Aggregate

Effect of Admixture on Physical and Mechanical Properties of Recycled Brick Aggregate Concrete

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