Kępniak Maja, Chyliński Filip, Łukowski Paweł, Woyciechowski Piotr
Department of Building Materials Engineering, Faculty of Civil Engineering, Warsaw University of Technology, Armii Ludowej 16, 00-637 Warsaw, Poland.
Instytut Techniki Budowlanej, Filtrowa 1, 00-611 Warsaw, Poland.
Materials (Basel). 2024 Aug 12;17(16):4007. doi: 10.3390/ma17164007.
The objective of the research outlined in this paper is to propose an eco-friendly solution that simultaneously contributes to improving the characteristics of polymer composites. The analyzed solution entails the use of recycled aggregate from crushed concrete rubble. The authors conducted experiments to test the consistency, density, flexural strength, compressive strength, and microstructure of polymer concrete (PC) with different proportions of recycled aggregate (RA). It was found that PC with RA had a higher compressive strength, 96 MPa, than PC with natural aggregate, 89.1 MPa, owing to the formation of a double-layer shell of resin and calcium filler on the surface of porous RA grains. Using a resin with a lower viscosity could improve the performance of PC with RA by filling the cracks and penetrating deeper into the pores. RA is a valuable material for PC production, especially when it contains porous grains with poor mechanical properties, which are otherwise unsuitable for other applications. This article also highlights the environmental and economic benefits of using RA in PC, as it can reduce waste generation and natural resource consumption.
本文概述的研究目标是提出一种环保解决方案，该方案同时有助于改善聚合物复合材料的特性。所分析的解决方案需要使用破碎混凝土 rubble 的再生骨料。作者进行了实验，以测试不同比例再生骨料（RA）的聚合物混凝土（PC）的稠度、密度、抗弯强度、抗压强度和微观结构。结果发现，含有 RA 的 PC 的抗压强度为 96 MPa，高于含有天然骨料的 PC 的抗压强度 89.1 MPa，这是由于在多孔 RA 颗粒表面形成了树脂和钙填料的双层壳。使用较低粘度的树脂可以通过填充裂缝并更深入地渗透到孔隙中来改善含有 RA 的 PC 的性能。RA 是 PC 生产的一种有价值的材料，特别是当它含有机械性能较差的多孔颗粒时，否则这些颗粒不适用于其他应用。本文还强调了在 PC 中使用 RA 的环境和经济效益，因为它可以减少废物产生和自然资源消耗。
