Ahmad Jawad, Majdi Ali, Deifalla Ahmed Farouk, Qureshi Hisham Jahangir, Saleem Muhammad Umair, Qaidi Shaker M A, El-Shorbagy Mohammed A
Department of Civil Engineering, Military College of Engineering, Risalpur 4707, Pakistan.
Department of Building and Construction Technologies Engineering, Al-Mustaqbal University College, Hillah 51001, Iraq.
Materials (Basel). 2022 Sep 5;15(17):6152. doi: 10.3390/ma15176152.
According to the authors' best information, the majority of research focuses on other waste materials, such as recycling industrial waste (glass, silica fume, marble and waste foundry sand), etc. However, some researchers suggest dune sand as an alternative material for concrete production, but knowledge is still scarce. Therefore, a comprehensive review is required on dune sand to evaluate its current progress as well as its effects on the strength and durability properties of concrete. The review presents detailed literature on dune sand in concrete. The important characteristics of concrete such as slump, compressive, flexural, cracking behaviors, density, water absorption and sulfate resistance were considered for analysis. Results indicate that dune sand can be used in concrete up to 40% without any negative effect on strength and durability. The negative impact of dune sand on strength and durability was due to poor grading and fineness, which restricts the complete (100%) substation of dune sand. Furthermore, a decrease in flowability was observed. Finally, the review highlights the research gap for future studies.
据作者所知，大多数研究集中在其他废料上，比如回收工业废料（玻璃、硅灰、大理石和铸造废砂）等。然而，一些研究人员建议将沙丘砂作为混凝土生产的替代材料，但这方面的知识仍然匮乏。因此，需要对沙丘砂进行全面综述，以评估其目前的进展以及对混凝土强度和耐久性的影响。该综述展示了关于混凝土中沙丘砂的详细文献。分析时考虑了混凝土的重要特性，如坍落度、抗压强度、抗弯强度、开裂行为、密度、吸水性和抗硫酸盐性。结果表明，沙丘砂在混凝土中的用量可达40%，而不会对强度和耐久性产生任何负面影响。沙丘砂对强度和耐久性的负面影响是由于级配不良和细度不佳，这限制了沙丘砂的完全（100%）替代。此外，还观察到流动性有所降低。最后，该综述突出了未来研究的差距。
