Rudziewicz Magdalena, Maroszek Marcin, Setlak Kinga, Góra Mateusz, Hebda Marek
Faculty of Materials Engineering and Physics, Cracow University of Technology, Warszawska 24, 31-155 Kraków, Poland.
Materials (Basel). 2024 Aug 19;17(16):4106. doi: 10.3390/ma17164106.
The continued global urbanization of the world is driving the development of the construction industry. In order to protect the environment, intensive research has been carried out in recent years on the development of sustainable materials and ecological construction methods. Scientific research often focuses on developing building materials that are renewable, energy-efficient, and have minimal impact on the environment throughout their life cycle. Therefore, this article presents research results aimed at developing a concrete mixture using cement with reduced CO emissions. In the context of increasing ecological awareness and in line with European Union policy, the development of a mixture based on environmentally friendly cement is of key importance for the future development of the construction industry. The article compares the physical properties of two mixtures, their foaming possibilities, and the influence of the added polypropylene (PP) fibers on the strength properties of the produced composites. It was found that bending strength and compressive strength were highest in the material with silica fume and aluminum powder at 5.36 MPa and 28.76 MPa, respectively. Microscopic analysis revealed significant pore structure differences, with aluminum foamed samples having regular pores and hydrogen peroxide foamed samples having irregular pores. Optimizing aluminum powder and water content improved the materials' strength, crucial for maintaining usability and achieving effective 3D printing. The obtained results are important in the development of research focused on the optimization of 3D printing technology using concrete.
全球持续的城市化进程推动着建筑业的发展。为了保护环境，近年来对可持续材料的开发和生态建筑方法进行了深入研究。科研工作通常聚焦于开发可再生、节能且在其整个生命周期内对环境影响最小的建筑材料。因此，本文展示了旨在开发一种使用二氧化碳排放量降低的水泥的混凝土混合物的研究成果。在生态意识不断增强的背景下，且符合欧盟政策，基于环保水泥的混合物的开发对于建筑业的未来发展至关重要。本文比较了两种混合物的物理性能、它们的发泡可能性以及添加的聚丙烯（PP）纤维对所生产复合材料强度性能的影响。结果发现，含有硅灰和铝粉的材料的抗弯强度和抗压强度最高，分别为5.36兆帕和28.76兆帕。微观分析揭示了显著的孔隙结构差异，铝粉发泡样品具有规则的孔隙，而过氧化氢发泡样品具有不规则的孔隙。优化铝粉和含水量提高了材料的强度，这对于保持可用性和实现有效的3D打印至关重要。所获得的结果对于专注于使用混凝土优化3D打印技术的研究发展具有重要意义。
