Effect of cement type and water-to-cement (w/c) ratio on characteristics of lightweight mortars produced with pumice: a comparative study on calcium aluminate (rapid hardening) and ordinary Portland cements

Nodehi, Mehrab; Gencel, Osman; Erdogmus, Ertugrul; Karagöz, Mehmet Erkan; Shi, Jinyan; Mo, Kim Hung; Gholampour, Aliakbar; Ozbakkaloglu, Togay

doi:10.1007/s41062-023-01327-y

Innov. Infrastruct. Solut.

2024

DOI: 10.1007/s41062-023-01327-y

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Effect of cement type and water-to-cement (w/c) ratio on characteristics of lightweight mortars produced with pumice: a comparative study on calcium aluminate (rapid hardening) and ordinary Portland cements

Mehrab Nodehi,

Osman Gencel,

Ertugrul Erdogmus

et al.

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2024

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Cited by 2 publications

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Effect of specimen size and shape on the compressive performance of high strength engineered cementitious composites at elevated temperatures

Rawat,

Zhang,

Lee

2024

Innov. Infrastruct. Solut.

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This study provides detailed insights into the effect of specimen size on the residual compressive strength of hybrid polyethylene-steel fibre reinforced high strength engineered cementitious composite after exposure to elevated temperatures. A mix design with high residual performance was selected and a total of 120 specimens with different cross-section shape (square and circular), aspect ratio (1 and 2) and sizes (cylinders of 40 mm, 75 mm, 100 mm, 150 mm diameter with height to diameter ratio of 2:1, cubes of 50 mm, 75 mm, 100 mm side and prism of size 75 × 75 × 150 mm) were cast. These specimens were subjected to temperatures ranging from 200 to 800 °C and the residual compressive strength and change in microstructure was then analysed after air cooling. Experimental results indicated that cubic specimens experienced less strength loss compared to prism specimens with the same cross-sectional area and the damage was found to decrease with increase in the volume to surface area ratio of the specimens. Furthermore, no spalling occurred in any of the specimens despite the change in specimen size or cross-section. Unlike previous studies that did not present any clear influence of specimen size, the present work established that the residual strength is dependent on aspect ratio and volume to surface area ratio of the specimen. As a result, these findings are valuable for selecting appropriate specimen size in elevated temperature studies and for the development of suitable guidelines to facilitate meaningful comparisons with the existing data.

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Effect of specimen size and shape on the compressive performance of high strength engineered cementitious composites at elevated temperatures

Rawat,

Zhang,

Lee

2024

Innov. Infrastruct. Solut.

View full text Add to dashboard Cite

show abstract

Evaluating the mechanical and durability properties of sustainable lightweight concrete incorporating the various proportions of waste pumice aggregate

Aslam,

Rehman,

Onyelowe

et al. 2024

Results in Engineering

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Effect of cement type and water-to-cement (w/c) ratio on characteristics of lightweight mortars produced with pumice: a comparative study on calcium aluminate (rapid hardening) and ordinary Portland cements

Cited by 2 publications

References 72 publications

Effect of specimen size and shape on the compressive performance of high strength engineered cementitious composites at elevated temperatures

Effect of specimen size and shape on the compressive performance of high strength engineered cementitious composites at elevated temperatures

Evaluating the mechanical and durability properties of sustainable lightweight concrete incorporating the various proportions of waste pumice aggregate

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