Kotsay Galyna, Grabowski Paweł
Faculty of Civil Engineering, Mechanics and Petrochemistry, Warsaw University of Technology, Lukasiewicza St. 17, 09-400 Plock, Poland.
Materials (Basel). 2023 Jul 31;16(15):5392. doi: 10.3390/ma16155392.
The paper determines the properties of geopolymer pastes based on metakaolin and soda-lime waste glass. The density, alkaline activity, strength and microstructure of the reference geopolymer, as well as geopolymers with a 10%, 30% and 50% soda-lime waste glass content instead of metakaolin, were tested. The experimental results indicate that the properties of the geopolymers with waste glass largely depend on the ratio of the liquid to solid substance. Increasing the content of waste glass causes an increase in the fluidity of the geopolymer paste, which in turn allows the amount of water glass, i.e., an activator during the obtaining of geopolymers, to be reduced. On the basis of the conducted tests, it was found that the strength of geopolymers can be increased by adding up to 50% of soda-lime waste glass instead of metakaolin and by having a lower content of water glass.
本文测定了基于偏高岭土和钠钙废玻璃的地质聚合物浆料的性能。对参考地质聚合物以及用10%、30%和50%的钠钙废玻璃替代偏高岭土的地质聚合物的密度、碱性活性、强度和微观结构进行了测试。实验结果表明，含废玻璃的地质聚合物的性能很大程度上取决于液固比。增加废玻璃含量会导致地质聚合物浆料的流动性增加，进而可以减少水玻璃（即地质聚合物制备过程中的一种活化剂）的用量。基于所进行的测试发现，用高达50%的钠钙废玻璃替代偏高岭土并降低水玻璃含量，可以提高地质聚合物的强度。
