*Proceeding Paper* **Geopolymers—Base Materials and Properties of Green Structural Materials †**

**Tarreck Mahaman Manssour Issa 1, Mateusz Sitarz 2,\* , Katarzyna Mróz <sup>2</sup> and Marcin Rózycki ˙ <sup>2</sup>**


**Abstract:** Nowadays, most industrial solid waste, agriculture waste, and natural minerals are piled up, which not only occupies land resources, but also has a dangerous impact on the environment. The responsible management and recycling of these materials can have significant environmental benefits, while also providing a means of accessing raw materials for the creation of geopolymers. Geopolymers are new, environment-friendly, cementless materials and alternative construction materials to ordinary Portland cement. They not only have excellent mechanical properties, but also have valuable properties, e.g., high-temperature resistance. This paper summarizes the feasibility studies in terms of base materials and properties of today's developing geopolymers. This paper also highlights the significance of developing sustainable materials for civil engineering.

**Keywords:** geopolymers; precursors; activator solutions; environment
