Faculty of Engineering, South Valley University, Aswan, Egypt.
Waste Manag. 2011 Dec;31(12):2431-9. doi: 10.1016/j.wasman.2011.07.015. Epub 2011 Aug 11.
Management of natural aggregate resources has become one of the most important challenges in construction, especially for high demand applications such as roads. Incinerator bottom ash (IBA), which is produced from burning domestic waste, has been considered a useful solution to the shortage of natural resources. In this research, IBA was mixed with limestone to produce an acceptable blend for use as a road foundation layer. Novel and traditional additives were adopted to improve the mechanical properties of IBA blends. The study focused on the treatment effect of additives on the mechanical characteristics of IBA blends under monotonic and cyclic triaxial stresses. The investigation evaluated fundamental material properties, including resilient modulus, initial Young's modulus and Poisson's ratio. Two nonlinear empirical models were adopted to depict the experimental resilient modulus results of the IBA blends. An approach has been proposed to predict realistic and representative values of resilient modulus for the material. In addition, a new relationship has been established between Young's modulus, resilient modulus and Poisson's ratio. Triaxial test results revealed that additives are more efficient with the control limestone blend than with the IBA blends. Novel additives, such as enzyme I and silica fume, produced a noticeable improvement in IBA properties in comparison to traditional additives.
天然骨料资源的管理已成为建筑领域面临的最重要挑战之一，尤其是在道路等高需求应用领域。焚烧炉底灰（IBA）是由燃烧城市垃圾产生的，它被认为是解决自然资源短缺的一种有效方法。在本研究中，IBA 与石灰石混合，制成可用于道路基础层的可接受的混合物。采用新型和传统添加剂来提高 IBA 混合物的力学性能。本研究重点研究了添加剂对单调和循环三轴应力下 IBA 混合物力学特性的处理效果。该研究评估了基本材料性能，包括回弹模量、初始杨氏模量和泊松比。采用了两个非线性经验模型来描述 IBA 混合物的实验回弹模量结果。提出了一种预测材料真实和代表性回弹模量值的方法。此外，还建立了杨氏模量、回弹模量和泊松比之间的新关系。三轴试验结果表明，与控制石灰石混合物相比，添加剂对 IBA 混合物的效果更好。与传统添加剂相比，新型添加剂，如酶 I 和硅灰，可显著改善 IBA 的性能。
