Evaluation of Steel Industrial Slag as Partial Replacement of Cement in Concrete

Jalil, Affan; Khitab, Anwar; Ishtiaq, Hamza; Bukhari, Syed Hassan; Arshad, Muhammad Tausif; Anwar, Waqas

doi:10.28991/cej-2019-03091236

Cited by 20 publications

(7 citation statements)

References 8 publications

(10 reference statements)

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“…Additionally, the replacement produces much dense microstructure [9]. Jalil et al studied the effect of industrial steel slag as partial replacement of cement in concrete: They have reported that the fine slag powder (passing sieve#200) could enhance the mechanical properties in comparison with the control specimens [10]. Munir et al studied the effect of rice husk ash as partial replacement of cement in concrete: They have reported that RHA replacement (10-40% by cement weight) effectively suppresses the alkali-silica reaction expansion [11].…”

Section: Introductionmentioning

confidence: 99%

Green non-load bearing concrete blocks incorporating industrial wastes

et al. 2020

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In this study, use of glass powder and marble powder as partial replacement of cement in various proportions (5%, 10%, and 15% by weight) in manufacturing of non-load bearing hollow concrete blocks is investigated. The manufactured blocks were evaluated for various characteristics as per ASTM C140/C140M, such as compressive strength, dry density and water absorption. Marble powder is obtained during sawing, cutting, shaping and polishing of marble, and it is normally rendered as solid waste. A huge quantity of discarded glass is dumped in landfills, world over. The mean dry densities of marble powder and glass powder used in this work are 2656.2 kg/m 3 and 2547.4 kg/m 3 , respectively, making them lighter than ordinary cement. The optimum value is found to be 10% replacement of cement (by mass) by the waste materials. It is found that the compressive strength increases by 40% and 18%, dry density decreases by 4% and 5% and water absorption increases by 28% and 36%, if 10% cement is replaced by marble powder and glass powder, respectively. It can be concluded from the results that the non-load bearing hollow concrete blocks with improved compressive strength and light weight can be manufactured by using glass powder and marble powder. Recycling of solid wastes like marble powder and glass powder in concrete is advantageous: It will not only address the waste management issues, but will also result in saving the quantity of cement in concrete, which itself is environmentally hazardous material.

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Section: Introductionmentioning

confidence: 99%

Green non-load bearing concrete blocks incorporating industrial wastes

et al. 2020

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“…Concrete, which is the most used construction material thanks to its superior properties [ 1 ], increases production every year, and it is estimated that it reaches approximately 11 billion metric tons annually [ 2 , 3 , 4 ]. Cement, which constitutes 10–15% of concrete by volume [ 4 , 5 ], is the most expensive component of concrete and causes the main environmental and energy consumption problems [ 6 , 7 ].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Performance of Different Types of Fibrous Concretes Produced by Using Wollastonite

2022

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Production of cement and aggregate used in cement-based composites causes many environmental and energy problems. Decreasing the usage of cement and aggregate is a crucial and currently relevant challenge to provide sustainability. Inert materials can also be used instead of cement and aggregates, similar to pozzolanic materials, and they have positive effects on cement-based composites. One of the inert materials used in cement-based composites is wollastonite (calcium metasilicate-CaSiO3), which has been investigated and attracted attention of many researchers. This article presents state-of-the-art research regarding fibrous concretes produced with wollastonite, such as mortars, conventional concrete, engineered cementitious composites, geopolymer concrete, self-compacting concrete, ultra-high-performance concrete and pavement concrete. The use of synthetic wollastonite, which is a novel issue, its high aspect ratio and allowing the use of waste material are also evaluated. Studies in the literature show that the use of wollastonite in different types of concrete improves performance properties, such as mechanical/durability properties, and provides environmental–economic efficiency. It has been proven by studies that wollastonite is a material with an inert structure, and, therefore, its behavior is similar to that of a fiber in cementitious composites due to its acicular particle structure.

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“…During the past few decades, researchers have proposed several agricultural and industrial wastes that could partially replace concrete ingredients, saving natural resources to a large extent. Jalil et al (2019) used industrial steel slag as partial replacement of cement in ordinary concrete [3]: They have reported that fine slag powder (passing through sieve #200) could lead to better mechanical properties than those of the control specimens. Khan et al (2020) used waste rubber tire particles as partial replacement of sand in ordinary concrete [4]: Their study revealed that uniform dispersion of fine and rough rubber particles at low dosage (5%) could lead to enhanced adhesion with surrounding cement paste and increase the compressive strength.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Concrete with Partial Replacement of Cement by Waste Marble Powder

et al. 2021

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This study aims to evaluate concrete having Waste Marble Powder (WMP) as partial replacement of cement. Marble is the metamorphic form of limestone (CaCO3) and WMP was chosen as substitute of cement on account of its high calcium oxide content. WMP is by-product of marble industry and is an environmental burden. The manufacturing of cement is also environmentally hazardous owing to emission of greenhouse gases. Thus, the recycling of WMP in place of cement in concrete offers two ecological advantages. Thirdly, WMP has a specific gravity of 2.6 against that of 3.15 for cement, which reduces the weight of the finished products. Based on the previous studies, five different concrete mixes were prepared having 0, 5, 10, 15 and 15% replacement levels. The samples were evaluated both through destructive and non-destructive tests. Destructive tests included compressive, tensile and flexural strengths, whereas non-destructive tests comprised of ultrasonic pulse velocity (UPV) and rebound hammer. It was observed that the workability decreases with WMP inclusion owing to its higher water absorption, which inhibits lubrication of cement particles. The concrete strength improves up to a replacement level of 10% by mass of cement on account of densification created by the finer WMP and un-hydrated cement particles, which act as hard inclusions. Beyond 10%, the concrete strength starts declining due to insufficient quantity of cement matrix, binding the WMP particles. Schmidt rebound numbers authenticate the compressive strength results: The number increases up to 10% replacement level and beyond 10% it decreases. The results of UPV indicate that the velocity increases with increase in WMP content: The increase is attributed to compactness of the composite with finer WMP particles. Doi: 10.28991/cej-2021-03091637 Full Text: PDF

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Evaluation of Steel Industrial Slag as Partial Replacement of Cement in Concrete

Cited by 20 publications

References 8 publications

Green non-load bearing concrete blocks incorporating industrial wastes

Green non-load bearing concrete blocks incorporating industrial wastes

Evaluation of the Performance of Different Types of Fibrous Concretes Produced by Using Wollastonite

Evaluation of Concrete with Partial Replacement of Cement by Waste Marble Powder

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