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Tetsunori Inoue and Isamu Fujita
Large amounts of pumice stone generated by the submarine volcanic eruption at Fukutoku Okanoba on 13 August 2021 drifted ashore, affecting ship navigation and fishery operations and posing challenges for disposal and a risk to benthic sea-life. As a new ...
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Vinh Thi Hai Chu, Vinh Duc Bui and Tue Viet Nguyen
Ultra-High Performance Concrete (UHPC) improves the bearing capacity as well as the durability of structural concrete. This study aims to investigate the constituents of UHPC in both phases: aggregate and cementitious materials. The proper ratio of the m...
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Kangyu Wang, Zhenhuan Chen, Zhe Wang, Qianshen Chen and Dihui Ma
Calcareous sand is a special marine soil rich in calcium carbonate minerals, characterized by brittle particles. It is, therefore, widely used as a filling material in the construction of islands and reefs. In this study, a series of cyclic tri-axial tes...
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Ahmed Salih Mohammed, Wael Emad, Warzer Sarwar Qadir, Rawaz Kurda, Kawan Ghafor and Raed Kadhim Faris
It is generally known that the two most crucial elements of concrete that depend on the slump value of the mixture are workability and compressive strength. In addition, slump retention is more delicate than the commonly used slump value since it reflect...
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Masaki Kitazume
Global warming due to greenhouse gas emissions has led to record-breaking heat waves, torrential rains and droughts on a global scale in recent years. For this reason, people around the world are more keenly aware of the need to reduce greenhouse gas emi...
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Euibae Lee, Jeongwon Ko, Jaekang Yoo, Sangjun Park and Jeongsoo Nam
In this study, the drying shrinkage cracking characteristics of concrete containing 30% fly ash were investigated for various dune sand (DS) replacements and unit water contents. In the results of compressive strength, the mixture with a DS-to-fine aggre...
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Daud Andang Pasalli, Sri Tudjono and Ilham Nurhuda
Pit sand generally has a lower silica content than sand sourced from rivers or crushed stones. The effect of this sand on the creep of concrete has not yet been fully studied. Understanding the creep of concrete can help to estimate the behaviour of stru...
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Caijin Xie, Tiejun Tao and Keyu Huang
After removing the mold from the secondary lining concrete of a tunnel, problems such as honeycomb and hemp surface easily occur. To obtain self-compacting fair-faced concrete (SCFFC) that can meet strength requirements and effectively solve the above pr...
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Euibae Lee, Jeongwon Ko, Jaekang Yoo, Sangjun Park and Jeongsoo Nam
In this study, the compressive strengths of concrete were investigated based on water content and aggregate volume fractions, comprising dune sand (DS), crushed sand (CS), and coarse aggregate (CA), for different ages. Experimental data were used to anal...
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Talal S. Amhadi and Gabriel J. Assaf
Soil characteristics are paramount to design pavements and to assess the economic viability of a road. In the desert, such as that found in southern Libya, the very poor quality of soils leads to important pavement distress such as cracks, rutting, potho...
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