The present research focuses on the varying proportion of lateritic fine aggregates in High strength concrete (HSC). Concrete mixes of M60 grade were produced by replacing manufactured sand with laterite in the ratio of 25 to 100 percent (by weight), and properties of the mixes are studied. To attain high strength mix, 10% micro silica and 10% of fly ash (FA) were added to all mixes. Mechanical properties were studied after 7, 28, 56, and 90 days of curing, and laterized specimens achieved approximately 12 percent higher compressive strength than control specimens, whereas the split-tensile and flexural strengths increased up to 11.14% and 12.83%, respectively. The results indicated that 25% substitution of laterite was the optimum percentage in HSC concrete. Microstructural studies of optimum mix and reference mix were conducted at 28 days to better morphological and mineralogical understanding of the laterized HSC. Durability parameters such as water penetration depth, chloride ion permeability, and sorptivity exhibited higher values for laterite mixes than the control mixes. The flexural behavior of Reinforced HSC beams using lateritic aggregates was investigated, and the load-carrying capacity of laterized beams was reported to be 11.3 percent higher than control beams. The study results indicate that HSC can be achieved with partial substitution with lateritic fine aggregates and proves that laterite can replace conventional aggregates.

目前的研究集中在高强度混凝土（HSC）中的红土细骨料的变化比例。通过用25％至100％（按重量计）的红土代替人造砂来生产M60级混凝土混合料，并研究了混合料的性能。为了获得高强度混合物，将10％的微硅粉和10％的粉煤灰（FA）添加到所有混合物中。在固化7天，28天，56天和90天后研究了力学性能，后处理的试样的抗压强度比对照试样高约12％，而抗拉强度和抗折强度分别提高了11.14％和12.83％。结果表明，在HSC混凝土中25％的红土替代是最佳比例。在28天时进行了最佳混合料和参考混合料的微观结构研究，以更好地了解后来的HSC的形态和矿物学。对于红土混合料，耐久性参数（如水的渗透深度，氯离子渗透性和吸收性）显示出比对照混合料更高的值。研究了使用红土骨料的增强型HSC梁的抗弯性能，据报道，红土梁的承载能力比控制梁高11.3％。研究结果表明，用红土细骨料部分替代可以实现HSC，并证明红土可以代替常规骨料。红土混合料的吸附度比对照混合料高。研究了使用红土骨料的增强型HSC梁的抗弯性能，据报道，红土梁的承载能力比控制梁高11.3％。研究结果表明，用红土细骨料部分替代可以实现HSC，并证明红土可以代替常规骨料。红土混合料的吸附度比对照混合料高。研究了使用红土骨料的增强型HSC梁的抗弯性能，据报道，红土梁的承载能力比控制梁高11.3％。研究结果表明，用红土细骨料部分替代可以实现HSC，并证明红土可以代替常规骨料。