Md Isa Mohd Hafizan, Koting Suhana, Hashim Huzaifa, Aziz Salsabila Ab, Mohammed Syakirah Afiza
Center for Transportation Research, Department of Civil Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia.
Faculty of Civil Engineering & Technology, Universiti Malaysia Perlis, Perlis 02600, Malaysia.
Materials (Basel). 2023 Jul 26;16(15):5261. doi: 10.3390/ma16155261.
Using ceramic tile waste as a soil stabiliser in road construction is a potential solution to dispose of the waste material while providing a cost-effective alternative to traditional stabilising agents. The ceramic tile waste, when crushed and mixed with soil, helps to improve the strength and durability of the road base. However, the effectiveness of the ceramic tile waste as a soil stabiliser depends on the type and size of ceramic tiles used and the soil properties being stabilised. This study investigated the effect of ground tile waste on the plasticity, compatibility, and mechanical properties such as the unconfined compressive strength (UCS), indirect tensile test (IDT), flexural test (FS), and microstructural analysis. A range of soil mixtures was prepared by adding the different percentages of fine tile waste (TW): 5% to 40%. Including tile waste in the soil led to a decrease in its water-holding capacity, reducing the optimum moisture content required for optimal compaction. Meanwhile, the maximum dry density increased. The UCS, IDT, and FS improved when the optimum 15% of TW was used in the mixes. However, the strength decreased after 20% of the TW addition. This effect was particularly pronounced in the presence of excessive TW contents in soil samples without a pozzolanic reaction. Reusing tile waste as a soil stabiliser can significantly reduce the costs of purchasing new materials and helps to conserve natural resources and reduce the environmental impact of waste disposal.
在道路建设中使用瓷砖废料作为土壤稳定剂，是一种处理废料的潜在解决方案，同时也是一种比传统稳定剂更具成本效益的替代方案。瓷砖废料经粉碎并与土壤混合后，有助于提高道路基层的强度和耐久性。然而，瓷砖废料作为土壤稳定剂的有效性取决于所用瓷砖的类型和尺寸以及被稳定土壤的性质。本研究调查了磨碎的瓷砖废料对可塑性、相容性以及诸如无侧限抗压强度（UCS）、间接拉伸试验（IDT）、弯曲试验（FS）和微观结构分析等力学性能的影响。通过添加不同百分比（5%至40%）的细瓷砖废料（TW）制备了一系列土壤混合物。在土壤中加入瓷砖废料导致其持水能力下降，降低了最佳压实所需的最佳含水量。与此同时，最大干密度增加。当混合物中使用15%的最佳TW时，UCS、IDT和FS有所改善。然而，添加20%的TW后强度下降。在没有火山灰反应的土壤样品中，当TW含量过高时，这种影响尤为明显。将瓷砖废料重新用作土壤稳定剂可显著降低购买新材料的成本，并有助于保护自然资源和减少废物处理对环境的影响。
