The use of fly ash as a cement substitute may reduce the increasing cement demand and prevents an increased emission of carbon dioxide (CO₂) into the atmosphere. This study aims to produce some compositions of geopolymer paving block (GPB) using different ratios of NaOH/Na₂SiO₃ combined with fly ash. The empirical models were developed to predict the performance of the GPB samples through the verification of the water absorption and compressive strength. The results showed that an optimum performance of GPB sample is predicted for the NaOH/Na₂SiO₃ ratio range of 0.4 to 0.67 to be verified at 28 d of the GPB age. The hardness of GPB sample rapidly increases by using a high enough concentration of NaOH in activator leading to significantly increase the compressive strength of paver block. A new approach of predicting the GPB performance has been proposed to support development of pavement construction in civil engineering industry.

使用粉煤灰作为水泥替代品可以减少水泥需求量的增加，并防止二氧化碳（CO ₂）向大气中的排放增加。这项研究的目的是使用不同比例的NaOH / Na ₂ SiO ₃和粉煤灰来生产某些地质聚合物铺路砖（GPB）。建立了经验模型以通过验证吸水率和抗压强度来预测GPB样品的性能。结果表明，对于NaOH / Na ₂ SiO _3，可以预测GPB样品的最佳性能。GPB年龄为28天时，验证比率为0.4到0.67。通过在活化剂中使用足够高的NaOH浓度，GPB样品的硬度会迅速提高，从而大大提高了摊铺机砖的抗压强度。已经提出了一种预测GPB性能的新方法，以支持土木工程行业路面建设的发展。