Strength and air permeability of steam-cured expansive concrete: effects of chemical prestress, water-to-binder ratio, and curing condition

Wijaya, Adhitya Leonard; Kajita, Saeko; Tadokoro, Yuji; Uchino, Masayuki; Nakarai, Kenichiro

doi:10.1617/s11527-023-02223-8

Cited by 5 publications

(1 citation statement)

References 100 publications

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“…The acceleration of urbanisation worldwide necessitates the urgent refinement of transportation networks. Prefabricated box culverts, a novel structural component, are gaining widespread attention within the engineering domain due to their rapid construction, minimal environmental impact, and significant economic benefits [1][2][3][4]. However, the unpredictability of high-temperature scenarios in real-world applications, such as fires and high-temperature industrial processes, places emphasis on the safety and temperature distribution of these culverts [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Thermal Effects on Prefabricated Box Culverts and Implications for Joint Performance under Elevated Temperatures

Di,

Wang,

Huang

2023

IJHT

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With the rapid progression of urbanisation and the continual refinement of transportation networks, prefabricated box culverts have increasingly attracted attention as modern structural components. Their rapid construction and environmentally friendly characteristics have rendered them a favoured choice within the engineering community. However, under high-temperature conditions, such as in fires or high-temperature industrial processes, concerns remain about the temperature distribution within these culverts and the subsequent impact on joint performance. Although some studies have addressed the temperature distribution and thermal effects associated with these culverts, most have been grounded in theoretical assumptions or have only engaged in preliminary experiments. In this research, an in-depth analysis of the temperature distribution within prefabricated box culverts under high-temperature conditions and the implications for joint performance is undertaken. Advanced finite element analysis tools are utilised for simulations. The findings provide the engineering community with comprehensive and precise reference data, holding significant implications for the design, construction, and maintenance of future prefabricated box culverts.

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Section: Introductionmentioning

confidence: 99%

Thermal Effects on Prefabricated Box Culverts and Implications for Joint Performance under Elevated Temperatures

Di,

Wang,

Huang

2023

IJHT

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Study on the influence parameters and anti‐abrasion performance of steam‐cured hydraulic concrete for prefabricated water conveyance channel

Ma,

Liu,

et al. 2024

Structural Concrete

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Excessive sediment concentration in water can cause damage to prefabricated concrete channels. This study evaluates the impact of sediment‐laden water flow on the mass loss of concrete after abrasion, incorporating scanning electron microscope‐energy dispersive spectrometer (SEM‐EDS) and X‐ray diffraction (XRD) analyses to assess the effects of four steam‐curing parameters—delay time, heating rate, constant temperature duration, and steam curing temperature—on the abrasion resistance of concrete used in enterprise prefabricated water conveyance channels. The results indicate that the abrasion resistance of concrete for prefabricated channels improves gradually with increases in delay time and constant temperature duration. When the delay time exceeds 3 h and the constant temperature time exceeds 4 h, the concrete's abrasion resistance can reach more than 5 h(g/cm2)−1. Rapid heating rates and excessively high steam curing temperatures adversely affect the concrete's abrasion resistance. However, when the heating rate is controlled within 20°C/h and the steam curing temperature does not exceed 70°C, the concrete's abrasion resistance can achieve more than 5 h(g/cm2)−1. In compliance with the standard DL/T5201‐2021 requirements, it is recommended that concrete with high demands for abrasion resistance should preferentially select steam‐curing parameters within these ranges.

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Effects of CaO-based expansive agent on carbonation resistance of marine concrete

Zhang,

Hua,

et al. 2024

Case Studies in Construction Materials

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Strength and air permeability of steam-cured expansive concrete: effects of chemical prestress, water-to-binder ratio, and curing condition

Cited by 5 publications

References 100 publications

Thermal Effects on Prefabricated Box Culverts and Implications for Joint Performance under Elevated Temperatures

Thermal Effects on Prefabricated Box Culverts and Implications for Joint Performance under Elevated Temperatures

Study on the influence parameters and anti‐abrasion performance of steam‐cured hydraulic concrete for prefabricated water conveyance channel

Effects of CaO-based expansive agent on carbonation resistance of marine concrete

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