Present study explores the effect of molarity of sodium hydroxide on the aluminosilicate content in laterite aggregate and the resulting strength development mechanism in Laterised Geopolymer Concrete (LGC). The proposed LGC is to develop its strength without temperature curing by partially replacing fly ash with Ground Granulated Blast Furnace Slag (GGBFS) and to have quarry fines as fine aggregate. The constituent materials of the proposed LGC include laterite coarse aggregate, quarry fines as fine aggregate, fly ash and GGBFS as aluminosilicate materials, and sodium hydroxide and sodium silicate as alkaline materials. In this study, it is observed that, unlike geopolymer concrete with conventional aggregate, the aluminosilicate content in laterite aggregate undergoes polymerization with higher values of the molarity of sodium hydroxide and hence contributes to the additional strength development of LGC. The present study also shows that, the cube compressive strength of LGC could be increased by 63% by increasing the molarity of sodium hydroxide from 8 to 16.

目前的研究探讨了氢氧化钠的摩尔浓度对红土骨料中硅铝酸盐含量的影响以及由此产生的强度化机理。拟议中的LGC将通过用粉状颗粒高炉矿渣（GGBFS）代替粉煤灰来提高其强度而不进行温度固化，并以细粒骨料的形式采石。拟议LGC的组成材料包括红土粗集料，采石细料作为细集料，粉煤灰和GGBFS作为铝硅酸盐材料，以及氢氧化钠和硅酸钠作为碱性材料。在这项研究中，我们发现与传统集料的地聚合物混凝土不同，红土骨料中硅铝酸盐的含量会随着较高的氢氧化钠摩尔浓度而发生聚合，从而有助于LGC的额外强度发展。本研究还表明，通过将氢氧化钠的摩尔比从8增加到16，可以使LGC的立方抗压强度提高63％。