Recently geopolymer technology possesses not only great efficiency in immobilizing heavy metal wastes but also produces valuable materials that can be applied in building sectors. The aim of this study is to examine the capability of geopolymers in the immobilization and entrapping of heavy metals bearing materials. The study will focus on the evaluation of optimum ratio of heavy metal that can affect and densify the produced composite. The studied mortar’s binder was made from blast furnace slag, while the used fine aggregates were air-cooled slag < 1 mm. However, the used activator was 8% sodium hydroxide. The studied heavy metals’ bearing materials were barium sulfate, lead phosphate, lead slag and electric arc furnace dust used as partial replacement of blast furnace slag. The physico-mechanical characterization of each set of samples was conducted using XRD, FTIR, SEM, compressive strength and bulk density. Results demonstrated that barium sulfate can be efficiently used up to 2%, lead phosphate up to 1%, lead slag up to 5% and electric arc furnace dust up to 10%.

最近，地质聚合物技术不仅在固定重金属废物方面具有很高的效率，而且还生产出可用于建筑领域的有价值的材料。这项研究的目的是检验地聚合物在重金属承载材料固定和截留方面的能力。该研究将集中于评估可能影响和致密化复合材料的重金属的最佳比例。所研究的砂浆粘合剂是由高炉矿渣制成的，而使用的细骨料是风冷的<1 mm炉渣。但是，所使用的活化剂是8％的氢氧化钠。研究的重金属轴承材料为硫酸钡，磷酸铅，铅渣和电弧炉粉尘，可部分替代高炉渣。使用XRD，FTIR，SEM，抗压强度和堆积密度对每组样品进行物理力学表征。结果表明，硫酸钡的有效利用率高达2％，磷酸铅的含量高达1％，铅渣的含量高达5％，电弧炉粉尘的含量高达10％。