Interfacial characteristics of cement mortars containing aggregate derived from industrial slag waste

Lee, Hyeongi; Hanif, Asad; Usman, Muhammad; Kim, Young‐Hwan; Oh, Hongseob; Kim, Seong-Kyum

doi:10.1080/24705314.2020.1783124

Cited by 7 publications

(3 citation statements)

References 38 publications

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“…Understanding the kind and characteristics of the aggregate used to create concrete is essential in order to forecast how the concrete's characteristic will be in practice. Numerous studies on subjects related to concrete, including self-compacting concrete [8] the incorporation of various natural and synthetic fibers [9,10] nanomaterials [11] and waste materials [12][13][14] have been conducted in the past.…”

Section: Introductionmentioning

confidence: 99%

Utilization of response surface methodology in optimization of locally sourced aggregates

Ogunjiofor¹,

Ayodele²

2023

5003

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This research investigated the optimization of locally sourced aggregate, mixed with variable cement ratios to determine its optimum compressive strength. Samples of standard sizes of local fine and coarse aggregate were obtained at the popular excavation sites. The concrete materials were weighed, batched, mixed, cast and cured using four different mix proportions of 1:2:4, 1.2:2:4, 1.4:2:4 and 1.6:2:4 of cement, fine and coarse aggregate at constant water/cement ratio of 0.5. A total of 48 concrete cubes of 150mmx150mmx150mm were produced, cured for 7, 14, 21 and 28 days and tested. Mathematical model equation relating the compressive strength of the local stone with variability of cement was developed using Response Surface Methodology (RSM). The significance and suitability of the equation was confirmed using the analysis of variance (ANOVA). The ANOVA for the quadratic and Surface Cubic model shows that the adjusted R2 of 0.9808 and F-value of 227.76 in compressive strength of the concrete is confidently accounted for by the independent variable. This demonstrates that the equation's predictions of compressive strength for various concrete structures are accurate. Therefore, utilization of local aggregate is advised for the construction of most of the dominant low-rise residential buildings in Anambra and other neighbouring States.

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Section: Introductionmentioning

confidence: 99%

Utilization of response surface methodology in optimization of locally sourced aggregates

Ogunjiofor¹,

Ayodele²

2023

5003

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“…It has been reported that one ton of clinker production emits 850 kg of CO 2 [ 6 , 7 ]. To make SCC economical as well as durable, many researchers have recommended mineral admixtures such as fly ash [ 8 ], silica fumes [ 9 ], blast furnace slag [ 10 , 11 ], rice husk ash [ 12 , 13 ], bentonite [ 14 ], limestone powder [ 15 ], waste clay products [ 16 ], and copper slag [ 17 ] to be used as cement replacement. When mineral admixtures are added to the concrete as a cement replacement, they either act as a pozzolanic agent or an inert filler material to change the properties of the concrete depending on the nature of the mineral admixture.…”

Section: Introductionmentioning

confidence: 99%

“…Various researchers suggested that the construction industry can become sustainable by using industrial and construction waste as a building material [ 10 , 19 ]. Using this waste will not only reduce the cost of concrete but will also have considerable positive environmental impacts [ 20 , 21 , 22 ].…”

Section: Introductionmentioning

confidence: 99%

Utilization of Solid Waste from Brick Industry and Hydrated Lime in Self-Compacting Cement Pastes

et al. 2021

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The huge amount of solid waste from the brick manufacturing industry can be used as a cement replacement. However, replacement exceeding 10% causes a reduction in strength due to the slowing of the pozzolanic reaction. Therefore, in this study, the pozzolanic potential of brick waste is enhanced using ultrafine brick powder with hydrated lime (HL). A total of six self-compacting paste mixes were studied. HL 2.5% by weight of binder was added in two formulations: 10% and 20% of waste burnt brick powder (WBBP), to activate the pozzolanic reaction. An increase in the water demand and setting time was observed by increasing the replacement percentage of WBBP. It was found that the mechanical properties of mixes containing 5% and 10% WBBP performed better than the control mix, while the mechanical properties of the mixes containing 20% WBBP were found to be almost equal to the control mix at 90 days. The addition of HL enhanced the early-age strength. Furthermore, WBBP formulations endorsed improvements in both durability and rheological properties, complemented by reduced early-age shrinkage. Overall, it was found that brick waste in ultrafine size has a very high degree of pozzolanic potential and can be effectively utilized as a supplementary cementitious material.

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Interaction effect of recycled aggregate type, moisture state, and mixing process on the properties of high-performance concretes

Salas_Montoya,

Chung,

Mira_Rada

2023

Case Studies in Construction Materials

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Interfacial characteristics of cement mortars containing aggregate derived from industrial slag waste

Cited by 7 publications

References 38 publications

Utilization of response surface methodology in optimization of locally sourced aggregates

Utilization of response surface methodology in optimization of locally sourced aggregates

Utilization of Solid Waste from Brick Industry and Hydrated Lime in Self-Compacting Cement Pastes

Interaction effect of recycled aggregate type, moisture state, and mixing process on the properties of high-performance concretes

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