Performance Enhancement of Fly Ash-Based Self Compacting Geopolymer Concrete Using Pre-heating Technique

Mazumder, Endow Ayar; M, L. V. Prasad

doi:10.1007/s40996-023-01046-5

Cited by 6 publications

(3 citation statements)

References 25 publications

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“…Preheating the concrete ingredients, such as aggregates and water, can help maintain the concrete's temperature during placement and reduce the risk of early freezing [180]. This practice ensures the proper setting and curing of the concrete in cold weather conditions [181].…”

Section: Preheated Ingredientsmentioning

confidence: 99%

An Overview of Smart Materials and Technologies for Concrete Construction in Cold Weather

Nilimaa

Zhaka

2023

Eng

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Cold weather conditions pose significant challenges to the performance and durability of concrete materials, construction processes, and structures. This paper aims to provide a comprehensive overview of the material-related challenges in cold weather concrete construction, including slow setting, reduced curing rate, and slower strength development, as well as frost damage, early freezing, and freeze–thaw actions. Various innovative materials and technologies may be implemented to address these challenges, such as optimizing the concrete mix proportions, chemical admixtures, supplementary cementitious materials, and advanced construction techniques. The paper also examines the impact of weather-related challenges for personnel, equipment, and machinery in cold environments and highlights the importance of effective planning, communication, and management strategies. Results indicate that the successful implementation of appropriate strategies can mitigate the challenges, reduce construction time, and enhance the performance, durability, and sustainability of concrete structures in cold and freezing temperatures. The paper emphasizes the importance of staying updated about the latest advancements and best practices in the field. Future trends include the development of smart and functional concrete materials, advanced manufacturing and construction techniques, integrated design, and optimization of tools, all with a strong focus on sustainability and resilience.

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Section: Preheated Ingredientsmentioning

confidence: 99%

An Overview of Smart Materials and Technologies for Concrete Construction in Cold Weather

Nilimaa

Zhaka

2023

Eng

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“…The proposed method will increase the in-situ casting capabilities of AAS/geopolymer concrete by utilizing an asphalt plant commonly used in the construction of hot mix asphalt pavements. This approach will also result in shorter curing times and relatively lower curing temperatures, leading to significant energy savings [11]. Moreover, the utilization of preheated materials in the production of AAS will result in increased early-age strength, enabling early opening to traffic for concrete pavement and providing protection against early frost damage.…”

Section: Figure 3 Strength Development and The Effect Of Preheating O...mentioning

confidence: 99%

“…[9] found that preheating fly ash and fine aggregate resulted in geopolymer mortars with higher compressive strength when a larger amount of supplied heat energy was provided. Mazumder and Prasad [11] investigated the effect of preheating in self-compacting geopolymer concretes by mixing fly ash and alkali activator at room temperature and then heating the mixture at 85°C for 15, 20, 25, and 30 minutes before combining it with the aggregate. They determined that the preheated self-compacting geopolymer concrete exhibited 31% higher compressive strength than one cured at 60°C for 48 hours and achieved 99% energy savings.…”

Section: Introductionmentioning

confidence: 99%

Malzemelerin Isıtılarak Kullanılması ile Alkali-Aktive Cürufların Erken-dönem Dayanım Gelişimlerinin İyileştirilmesi

KARAASLAN

2023

Çukurova Üniversitesi Mühendislik Fakültesi Dergisi

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Alkali-activated cements have gained attention as sustainable alternatives to Portland cement-based concretes. This study aims to enhance the early strength development of alkali-activated slag (AAS) mortars by preheating the alkali activator, ground granulated blast furnace slag, and aggregates to temperatures reaching up to 65°C before their utilization. Preheating at 50°C enhances both early and ultimate strength of AAS, compared to specimens that were not subjected to preheating. Similarly, preheating at 65°C results in a substantial increase in early strength but leads to some strength reduction after three days. SEM and FTIR analyses reveal that preheating at 50°C improves the interfacial transition zone between paste and aggregate, reduces microcracks, and promotes alkali activation. Furthermore, FTIR analysis confirms the occurrence of hydration reactions in AAS upon contact with water.

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Probabilistic Estimation for Mechanical Properties of Self-Compacting Geopolymer Concrete Using Machine Learning Technique

Mazumder

Prasad

2023

Arab J Sci Eng

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Performance Enhancement of Fly Ash-Based Self Compacting Geopolymer Concrete Using Pre-heating Technique

Cited by 6 publications

References 25 publications

An Overview of Smart Materials and Technologies for Concrete Construction in Cold Weather

An Overview of Smart Materials and Technologies for Concrete Construction in Cold Weather

Malzemelerin Isıtılarak Kullanılması ile Alkali-Aktive Cürufların Erken-dönem Dayanım Gelişimlerinin İyileştirilmesi

Probabilistic Estimation for Mechanical Properties of Self-Compacting Geopolymer Concrete Using Machine Learning Technique

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