Geopolymer belongs to the family of aluminosilicate polymers. The production of geopolymer generally involves the combination of silicon and aluminium atoms in a hydroxide-promoted activation, followed by a condensation reaction to form an aluminosilicate gel which gives the final hardened binder. Reactivity of geopolymer system is influenced by nature of alkaline activator, ratio of silicon to aluminium, curing time, pH and degree of polycondensation. Fly ash and ground granulated blast furnace slag have been utilized for the synthesis of geopolymers at ambient condition which does not require energy. The investigation aims at assessing the reactivity of geopolymer through various approaches such as degree of reactivity (by means of insoluble residue), infra-red spectroscopy and free alkali content involving various activators and admixtures. The results show that potassium based geopolymer with higher level of alkalinity shows more reactivity. Energy required for the production of geopolymer pastes with sodium silicate as activator ranges from 3.65 to 4.37 MJ/kg, with potassium silicate as activator ranges from 2.24 to 4.45 MJ/kg as against 4.79 MJ/kg for ordinary Portland cement paste. For geopolymer pastes using high volume fly ash 4% less carbon foot print is possible compared to ordinary Portland cement paste.

地质聚合物属于硅铝酸盐聚合物家族。地质聚合物的生产通常涉及硅原子和铝原子在氢氧化物促进的活化作用下的结合，然后进行缩合反应以形成硅铝酸盐凝胶，从而得到最终的硬化粘合剂。地质聚合物体系的反应性受碱性活化剂的性质，硅与铝的比例，固化时间，pH值和缩聚度的影响。粉煤灰和磨碎的高炉矿渣已经用于在不需要能量的环境条件下合成地质聚合物。该研究旨在通过各种方法评估地质聚合物的反应性，例如反应度（通过不溶性残留物），红外光谱法和涉及各种活化剂和混合物的游离碱含量。结果表明，具有较高碱度的钾基地质聚合物显示出更高的反应性。用硅酸钠作为活化剂生产地聚合物浆料所需的能量在3.65至4.37 MJ / kg之间，而用硅酸钾作为活化剂的生产范围在2.24至4.45 MJ / kg之间，而普通波特兰水泥浆料则为4.79 MJ / kg。对于使用高粉煤灰的地聚合物浆，与普通波特兰水泥浆相比，碳足迹减少了4％。