Al-Mufti Salah M S, Almontasser Asma, Rizvi Syed J A
Department of Petroleum Studies, Z. H. College of Engineering & Technology, Aligarh Muslim University, Aligarh 202002, India.
Department of Applied Physics, Z. H. College of Engineering & Technology, Aligarh Muslim University, Aligarh 202002, India.
ACS Omega. 2023 May 30;8(23):20389-20403. doi: 10.1021/acsomega.3c00353. eCollection 2023 Jun 13.
In recent years, cheaply available cementitious materials (CMs) are increasingly finding useful applications in construction engineering. This manuscript focused on the development and fabrication of unsaturated polyester resin (UPR)/cementitious material composites to be potentially useful in a variety of construction applications. For this purpose, five types of powders from widely available fillers, i.e., black cement (BC), white cement (WC), plaster of Paris (POP), sand (S), and pit sand (PS), were used. Cement polymer composite (CPC) specimens were prepared by a conventional casting process with various filler contents of 10, 20, 30, and 40 wt %. Neat UPR and CPCs were investigated mechanically by testing their tensile, flexural, compressive, and impact properties. Electron microscopy analysis was used to analyze the relation between the microstructure and mechanical properties of CPCs. The assessment of water absorption was conducted. The highest tensile, flexural, compressive upper yield, and impact strength values were recorded for POP/UPR-10, WC/UPR-10, WC/UPR-40, and POP/UPR-20, respectively. The highest percentages of water absorption were found to be 6.202 and 5.07% for UPR/BC-10 and UPR/BC-20, while the lowest percentages were found to be 1.76 and 1.84% for UPR/S-10 and UPR/S-20, respectively. Based on the finding of this study, the properties of CPCs were found to depend on not only the filler content but also the distribution, particle size, and combination between the filler and the polymer.
近年来，价格低廉的胶凝材料（CMs）在建筑工程中的应用越来越广泛。本论文聚焦于不饱和聚酯树脂（UPR）/胶凝材料复合材料的开发与制备，以期在各种建筑应用中发挥潜在作用。为此，使用了五种广泛可得的填料粉末，即黑水泥（BC）、白水泥（WC）、巴黎石膏（POP）、砂（S）和坑砂（PS）。通过传统浇铸工艺制备了填料含量分别为10%、20%、30%和40%（重量）的水泥聚合物复合材料（CPC）试样。通过测试纯UPR和CPC的拉伸、弯曲、压缩和冲击性能对其进行力学性能研究。采用电子显微镜分析来研究CPC的微观结构与力学性能之间的关系。进行了吸水性评估。POP/UPR - 10、WC/UPR - 10、WC/UPR - 40和POP/UPR - 20分别记录到最高的拉伸、弯曲、压缩上屈服强度和冲击强度值。UPR/BC - 10和UPR/BC - 20的最高吸水率分别为6.202%和5.07%，而UPR/S - 10和UPR/S - 20的最低吸水率分别为1.76%和1.84%。基于本研究的结果，发现CPC的性能不仅取决于填料含量，还取决于填料的分布、粒径以及填料与聚合物之间的组合。
