Waste glass is a type of construction and demolition waste, which carries significant environmental burdens and can be recycled. In this study, a foamed alkali-activated glass (FAAG) via the use of milled waste glass was synthesized in low-temperature (i.e., 80°C). The influence of foaming agent (i.e., aluminum powder) content on the foaming process of samples was investigated and optimized in view of their performance. The optimum mix formulation, which is FAAG with 10% aluminum powder was then selected, and followed by the measurement of the water-resistance and absorption, impact resistance and thermal conductivity of the prepared FAAG. X-ray diffraction was also involved to identify the phase formation within the samples. Finally, the environmental impacts related to the preparation of 1 kg FAAG were obtained. Results shows that a type of more sustainable FAAG compared with the commercial product was successfully developed in low-temperature, revealing the low thermal conductivity of ∼0.13 W/(mK) with a density of ∼0.59 g/cm³ and compressive strength of ∼5.52 MPa, which is 97% higher than the commercial product. Meanwhile, in addition to a foaming agent, aluminum powder is also acting as a key component in the geopolymerization of samples, facilitating the formation of aluminosilicate that provides strength.

废玻璃是一种建筑和拆除废物，会带来巨大的环境负担并且可以回收利用。在这项研究中，泡沫碱活化玻璃（FAAG）通过磨碎的废玻璃的使用是在低温（即80°C）下合成的。研究了发泡剂（即铝粉）含量对样品发泡过程的影响，并根据其性能进行了优化。然后选择最佳的混合配方，即含有10％铝粉的FAAG，然后测量所制备的FAAG的耐水性和吸收性，耐冲击性和导热性。X射线衍射还涉及鉴定样品内的相形成。最后，获得了与制备1千克FAAG有关的环境影响。结果表明，与市售产品相比，在低温下成功开发了一种更具可持续性的FAAG，揭示了约0.13 W /（mK）的低热导率和约0.59 g / cm的密度³，抗压强度约5.52 MPa，比市售产品高97％。同时，除起泡剂外，铝粉还在样品的地质聚合中起关键作用，有助于形成铝硅酸盐并提供强度。