Feasibility Study on Concrete Performance Made by Partial Replacement of Cement with Nanoglass Powder and Fly Ash

Arowojolu, Olaniyi; Fina, Jennifer; Pruneda, Ana; Ibrahim, A.; Mahmoud, Enad

doi:10.1007/s40999-018-0352-6

Cited by 19 publications

(9 citation statements)

References 14 publications

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“…The presence of different types of oxides is due to the oxidation of the rubber at high temperatures and these compounds were expected due to the rubber characteristics and are in agreement with the data described in the literature (LIAO et al, 2007). Also, the presence of SiO2 (26.81 weight%) in mineral ash shows pozzolanic properties (AROWOJOLU et al, 2019). and rubber ash).…”

Section: Aggregate Characterizationsupporting

confidence: 88%

“…The best result for axial compressive strength for the 5% ash content may be explained by the improved and homogeneous packing promoted by the rubber ash particles, which lead to a higher workability of this mix (Table 1). Also, the composition of rubber ash may have contributed to improve the concrete characteristics, due to its high concentration of silica and calcium oxide, which are the main products of cement after hydration (AROWOJOLU et al, 2019).…”

Section: Concrete Performance Evaluationmentioning

confidence: 99%

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Incorporation of rubber ash as a partial substitute of fine aggregates in concrete

Bernardino

Valencio

Ribeiro

et al. 2021

CeN

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The construction industry is responsible for a high consumption of natural resources, demanding high quantities of aggregate materials for use in construction. In addition, large quantities of rubber waste generated worldwide have emphasized the need to find practical reuse applications. The present study partially replaces fine aggregates by ash from a co-processing of milled and burned conveyor belt rubber waste. Test specimens with ash concentrations of 0%, 5%, 10%, 15% and 20%, were made comparing its workability, mechanical axial resistance and absorption of water by capillarity. It was concluded that the partial replacement of sand by 5% of rubber ash has improved the traditional concrete mixture, with better workability, less amount of water, leading to a greater resistance to axial compressive and acceptable absorption of water. Thus, the results confirm that the concrete with incorporation of rubber ash is a potential alternative technology to achieve sustainable development in the construction industry.

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Section: Aggregate Characterizationsupporting

confidence: 88%

Section: Concrete Performance Evaluationmentioning

confidence: 99%

Incorporation of rubber ash as a partial substitute of fine aggregates in concrete

Bernardino

Valencio

Ribeiro

et al. 2021

CeN

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“…This observation may be attributed to the addition of nanoparticles with highly specific surface areas that required more water to become wet [ 38 ]. As opposed to spherical FA particles, the nanoglass particles with angular and irregular shapes could increase the intermolecular friction, thus limiting the workability of the specimen [ 29 , 58 ]. Moreover, WGBNPs tend to occupy the inter-space among mixture particles, sinking the area available for the particle dynamics, thereby requiring a high amount of water for lubricating the mixture, providing adequate workability [ 59 ].…”

Section: Results Analysis and Discussionmentioning

confidence: 99%

“…Many investigations [ 28 , 29 , 30 , 31 , 32 , 33 ] displayed sufficient pozzolanic properties of glass powder and its use as partial replacement for cement, becoming advantageous for improving the overall bulk properties of concrete. Sancheti et al [ 34 ], Elmoaty et al [ 32 ], and Rahman et al [ 30 ] investigated the possibility of implementing GPs as a partial replacement for cement at different contents in the range of 5–25% of the binder weight.…”

Section: Introductionmentioning

confidence: 99%

Effective Microorganisms and Glass Nanopowders from Waste Bottle Inclusion on Early Strength and Microstructure Properties of High-Volume Fly-Ash-Based Concrete

et al. 2022

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In concrete production, the use of high-volume fly ash (FA) as the cement substitute became interesting to achieve more sustainable and eco-friendly construction materials. However, concrete produced using high volumes of FA as cement substitute suffers from various limitations such as low strength at early ages. Considering the engineering solutions and economy of FA-included concrete, it has become vital to address such issues. In this perception, some concrete mixes were designed using more abundant and low-cost local waste materials such as waste glass bottle nanopowders (WGBNPs) and effective microorganisms (EMs) to determine the feasibility of compensating for the strength loss at early ages due to FA inclusion. The proposed mixes contained 10% of EMs as water replacement, 50% of FA, and various percentages of WGBNPs as cement replacement. The effects of EMs and WGBNPs inclusion on the early strength and microstructure properties of the produced FA-based concrete mixes were determined. The results show that the strength indexes of the concrete at all test ages were improved due to WGBNP and EM incorporation. At almost all curing ages, the mechanical performance of the concrete made with 10% EMs and 4% WGBNPs was comparable to that of normal concrete (control mix), wherein the mix containing 6% WGBNPs outperformed the control mix. The microstructure analysis of the studied mixes revealed an increase in the hydration products, structural compactness, and homogeneity due to the synergy of WGBNPs and EMs, especially the specimen made using 10% EMs and 6% WGBNPs. It is established that the proper utilization of EMs and WGBNPs in FA-based concrete can be beneficial for waste recycling and landfill problems, thus lowering environment pollution.

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“…These covers apply the by-products and waste products for the construction industry. Arowojolu et al (2019) suggested that FA and nanoglass powder are commonly used pozzolanic materials owing to their high silicon dioxide content and fineness. FA using as an admixture will improve both the strength and the durability of concrete.…”

Section: Introductionmentioning

confidence: 99%

Assessing the utilisation of industrial waste as aggregate and manufactured sand: microstructural and durability characteristics on high-performance concrete

Kamasani¹,

Siddamreddy²

2022

IJSI

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PurposeUtilising industrial waste, such as fly ash (FA) and bagasse ash (BA), reduces waste management and increases mechanical strength. Concrete is modified with FA and BA in the cool bonded method of concrete preparation.Design/methodology/approachThe study used to partially replace cement with BA powder at proportions 0, 5, 10, 15, 20 and 25% and coarse aggregates are replaced with FA aggregates made with FA and cement using a cold-bonded technique at proportions 0–25%. FA aggregates were made at 10:90, 15:85, 20:80 and 25:75 proportions of cement and FA. The FA aggregates at the best proportion 15:85 was selected as a coarse aggregate by conducting tests like specific gravity, crushing value, impact value and water absorption tests.FindingsThe addition of 30% content decreases porosity by 21% and increases strength significantly at 28 days. Microstructure evolution is carried out to identify material behaviour.Originality/valueMechanical and durable properties such as flexural strength, tensile strength, water absorption test, acid and alkaline tests are conducted on M50 grade concrete after 3–28 days of curing.

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Feasibility Study on Concrete Performance Made by Partial Replacement of Cement with Nanoglass Powder and Fly Ash

Cited by 19 publications

References 14 publications

Incorporation of rubber ash as a partial substitute of fine aggregates in concrete

Incorporation of rubber ash as a partial substitute of fine aggregates in concrete

Effective Microorganisms and Glass Nanopowders from Waste Bottle Inclusion on Early Strength and Microstructure Properties of High-Volume Fly-Ash-Based Concrete

Assessing the utilisation of industrial waste as aggregate and manufactured sand: microstructural and durability characteristics on high-performance concrete

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