Effect of heat treatment on mechanical behavior and scaling resistance of slag impregnated low strength recycled compacted concrete

Mostazid, Md. Ibrahim; Sakai, Yuya

doi:10.1016/j.jobe.2023.106084

Cited by 3 publications

(1 citation statement)

References 44 publications

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“…However, to some extent, it may also be detrimental to concrete. Fine steel slag aggregate can be utilized to enhance recycled aggregate concrete [23], as well as recycled low-strength compacted concrete [24] and 3D printed concrete produced using environmentally friendly materials [24].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on the Physical and Mechanical Characteristics of Refractory Concrete Using Heat-Treated Steel Slag Coarse Aggregates

Alkhedr,

Asaad,

Ismail

et al. 2023

Infrastructures

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The aim of this study is to compare the properties of refractory concrete made with thermally treated and untreated steel slag. Five concrete compositions were prepared and investigated in the present work. The first mixture, referred to as the reference, was formulated using dolomite aggregates, whereas the second and third mixtures were developed by replacing natural coarse aggregate with 50 and 100% by weight of thermally untreated steel slag, respectively. The same replacement ratio (50% and 100%) of thermally treated steel slag was used to produce the fourth and fifth mixtures. Specimens of each specimen were placed in a furnace and heated to 400 °C and 800 °C. The mass loss for all the specimens heated to 400 °C was about 8%, while the reference suffered the maximum mass loss at 800 °C, which was 21.6%. The mixture with a 100% substitution of thermally treated steel slag produced the maximum compressive strength when compared to other mixtures at a temperature of 800 °C. The compressive strength of the M5 mixture was 18 MPa versus 10.87 MPa for the reference mixture. Additionally, optical microscope examination of specimens containing thermally treated steel slag revealed less damage than that observed in mixtures with dolomite.

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Section: Introductionmentioning

confidence: 99%

Experimental Study on the Physical and Mechanical Characteristics of Refractory Concrete Using Heat-Treated Steel Slag Coarse Aggregates

Alkhedr,

Asaad,

Ismail

et al. 2023

Infrastructures

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Recycling Gypsum Plaster and Blocks from Debris in Ukraine Through Compaction

Muhaimin,

Liu,

Chen

et al. 2024

Preprint

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Acid Resistance of Geopolymer Concrete – Literature Review, Knowledge Gaps, and Future Development

Mostazid

2024

BEN

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Geopolymer concrete, a sustainable and durable alternative to conventional Portland cement-based concrete, has gained significant attention in recent years. Its reduced carbon footprint and superior mechanical properties make it a viable option for various construction applications. However, acid resistance remains a critical area of concern, particularly in environments where exposure to acidic substances is prevalent. This review paper delves into the acid resistance of geopolymer concrete, providing a comprehensive overview of the latest research findings, methodologies, and advancements in the field. The paper commences by exploring the fundamental principles of geopolymer chemistry. Subsequently, the paper meticulously reviews the experimental results of studies investigating the acid resistance of geopolymer concrete. It focuses on the effects of various acids commonly encountered in industrial and environmental settings, such as sulfuric acid, hydrochloric acid, and organic acids. The paper summarizes the key findings from the reviewed literature, highlighting the strengths and limitations of geopolymer concrete in terms of acid resistance. It identifies the factors that contribute to enhanced acid resistance and suggests potential strategies for further improvement. Furthermore, the paper outlines future research directions, emphasizing the need for long-term studies, the development of standardized testing methods, and the exploration of novel geopolymer formulations with superior acid resistance.

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Effect of heat treatment on mechanical behavior and scaling resistance of slag impregnated low strength recycled compacted concrete

Cited by 3 publications

References 44 publications

Experimental Study on the Physical and Mechanical Characteristics of Refractory Concrete Using Heat-Treated Steel Slag Coarse Aggregates

Experimental Study on the Physical and Mechanical Characteristics of Refractory Concrete Using Heat-Treated Steel Slag Coarse Aggregates

Recycling Gypsum Plaster and Blocks from Debris in Ukraine Through Compaction

Acid Resistance of Geopolymer Concrete – Literature Review, Knowledge Gaps, and Future Development

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