@article{WalbrueckWitzlebenStephan2024, author = {Katharina Walbr{\"u}ck and Steffen Witzleben and Dietmar Stephan}, title = {Design and characterization of geopolymer foams reinforced with Miscanthus x giganteus fibres}, series = {Heliyon}, volume = {10}, number = {16}, publisher = {Cell Press}, issn = {2405-8440}, doi = {10.1016/j.heliyon.2024.e35947}, url = {https://nbn-resolving.org/urn:nbn:de:hbz:1044-opus-85510}, pages = {1 -- 10}, year = {2024}, abstract = {This paper presents the results of the optimisation and characterization of Miscanthus fibre reinforced geopolymer foams based on fly ash and represents an important step forward in the development of a sustainable and environmentally friendly insulation material. Miscanthus belongs to a promising group of renewable raw materials with favourable thermal insulation properties. Design of experiment (DoE) were used to optimize the thermal conductivity and compressive strength of Miscanthus x giganteus reinforced geopolymer foams. In addition, the samples was analyzed using X-ray diffraction (XRD), Field emission scanning electron microscopy (SEM) and Fourier-Transform Infrared Spectroscopy (FTIR). Mixtures with a low thermal conductivity of 0.056 W (m K)−1 and a porosity of 79 vol\% achieved a compressive strength of only 0.02 MPa. In comparison, mixtures with a thermal conductivity of 0.087 W (m K)−1 and a porosity of 58 vol\% achieved a compressive strength of 0.45 MPa. Based on the determined parameters especially due to the low compressive strength, an application as cavity insulation or insulation between rafters is possible.}, language = {en} }