This research offered that the rice husk ash is served as replacement for cement ingredient such as 5%, 10% and 15% along with 10%, 20%, 30% and 40% of fine aggregates replaced with coal bottom ash in concrete. In this regard, total 180 concrete samples were prepared with mix proportion of 1:2:4 at 0.50 water/cement ratio and theses specimens were cured at 28 days. However, the main theme of this study is to perform the slump test, compressive strength, split tensile strength and water absorption of concrete including different proportions of rice husk ash as replacement for cement and fine aggregates replaced with coal bottom ash separate and combine. The outcome was detected that the workability and water absorption is dropped as the dosages of rice husk ash and coal bottom ash increases in concrete. Moreover, the compressive and split tensile strength is enhanced by 9.10% and 7.73% while the utilizing of 5% RHA along with 30% of fine aggregate replaced with coal bottom ash in concrete at 28 days consistently.

这项研究表明，稻壳灰可替代水泥成分（如5％，10％和15％），而细骨料中的10％，20％，30％和40％则由煤灰在混凝土中替代。在这方面，以水/水泥比为0.5的比例，以1：2：4的混合比制备了总共180个混凝土样品，这些样品在28天后固化。然而，这项研究的主要主题是进行混凝土的坍落度试验，抗压强度，劈裂抗拉强度和吸水率，包括不同比例的稻壳灰代替水泥和细骨料用煤灰分离和结合。结果表明，随着混凝土中稻壳灰和煤灰的添加量增加，可加工性和吸水率下降。此外，