Experimental investigation on the high-volume fly ash ecological self-compacting concrete

Zhang, Zheng; Li, Jiangwei; Li, Zhenghao; Wang, Zhongwen; Cao, Lianghong; Rong, Guocheng; Wu, Miaomiao; Zhao, Deqiang; Zhao, Zhicheng

doi:10.1016/j.jobe.2022.105163

Cited by 9 publications

(2 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As such, when using fly ash in concrete, issues such as activity requirements, particle size distribution, dosage control, curing conditions, and storage and transportation need to be considered. Selecting fly ash that meets the requirements and comprehensively considering various performance indicators of the concrete can improve the performance and stability of the concrete [25].…”

Section: Fly Ashmentioning

confidence: 99%

Early-Age Cracking of Fly Ash and GGBFS Concrete Due to Shrinkage, Creep, and Thermal Effects: A Review

Zhang,

Liu,

et al. 2024

Materials

View full text Add to dashboard Cite

Supplementary cementitious materials (SCMs) are eco-friendly cementitious materials that can partially replace ordinary Portland cement (OPC). The occurrence of early-age cracking in OPC-SCM blended cement is a significant factor impacting the mechanical properties and durability of the concrete. This article presents a comprehensive review of the existing research on cracking in OPC-SCM concrete mix at early ages. To assess the effects of SCMs on the early-age cracking of concrete, the properties of blended cement-based concrete, in terms of its viscoelastic behavior, evolution of mechanical performance, and factors that affect the risk of cracking in concrete at early ages, are reviewed. The use of SCMs in OPC-SCM concrete mix can be an effective method for mitigating early-age cracking while improving the properties and durability of concrete structures. Previous research showed that the shrinkage and creep of OPC-SCM concrete mix are lower than those of conventional concrete. Moreover, the lower cement content of OPC-SCM concrete mix resulted in a better resistance to thermal cracking. Proper selection, proportioning, and implementation of SCMs in concrete can help to optimize the performance and reduce the environmental impact of OPC-SCM concrete mix.

show abstract

Section: Fly Ashmentioning

confidence: 99%

Early-Age Cracking of Fly Ash and GGBFS Concrete Due to Shrinkage, Creep, and Thermal Effects: A Review

Zhang,

Liu,

et al. 2024

Materials

View full text Add to dashboard Cite

show abstract

“…This enhancement in thermal performance was attributed mainly to the incorporation of HVFA, establishing it as a thermal performance enhancer (TPE). Furthermore, utilizing fly ash (FA) in concrete offers multiple benefits, including resource conservation, enhanced rheological properties and lower heat of hydration in concrete and subsequent reduction in concrete cracking 13 – 17 . Consequently, this matrix formulation may possibly be suitable against ETF to attain high residual strengths.…”

Section: Introductionmentioning

confidence: 99%

Effects of aircraft operating fluids and environmental thermal fatigue on fly ash and steel slag based cementitious composites

Tangirala,

Rawat,

Lahoti

2024

Sci Rep

View full text Add to dashboard Cite

This paper investigates the performance of concrete incorporating high-volume fly ash (HVFA) and steel slag aggregates against the detrimental effects of combined cycles of environmental thermal fatigue and exposure to leaked aircraft fluids. A total of 128 cubes and 90 prisms were cast for five mixes and exposed to 60, 120, 180, 240 and 300 combined cycles. The results demonstrate the positive effect of utilization of HVFA which reduces the total amount of portlandite available in the system. The SS aggregates demonstrate a strong interlocking with the surrounding matrix and supply the necessary portlandite for continued pozzolanic reaction. However, their reaction with aircraft fluids causes significant degradation to flexural strength initially, which is redeemed by pozzolanic reaction at a later stage. Hybrid basalt and polypropylene fibres were successful in enhancing the flexural strength and reducing the cracking. The mercury intrusion porosimetry revealed a reduction in pore volume because of HVFA. Scanning electron microscopy and differential scanning calorimetry were also employed to uncover the underlying mechanisms of damage and assess the performance of the cementitious composite.

show abstract

Self-Compacting Concrete Using Supplementary Cementitious Materials and Fibers: Review

Devi,

Vivek

2024

Iran J Sci Technol Trans Civ Eng

View full text Add to dashboard Cite

Experimental investigation on the high-volume fly ash ecological self-compacting concrete

Cited by 9 publications

References 32 publications

Early-Age Cracking of Fly Ash and GGBFS Concrete Due to Shrinkage, Creep, and Thermal Effects: A Review

Early-Age Cracking of Fly Ash and GGBFS Concrete Due to Shrinkage, Creep, and Thermal Effects: A Review

Effects of aircraft operating fluids and environmental thermal fatigue on fly ash and steel slag based cementitious composites

Self-Compacting Concrete Using Supplementary Cementitious Materials and Fibers: Review

Contact Info

Product

Resources

About