Research objectives are to determine the effect of groundnut shell ash used as partial cement replacement on concrete compressive strength. Groundnut shell ash obtained from the combustion results and passed sieve No. 200. Design mix is 21.7 MPa, with different variation percentage of groundnut shell ash in the order of 0%, 5%, 7.5%, 10% and 12.5% as partial replacement of cement for mixes. Total of 60 concrete specimens with 150 mm in diameter and height of 300 mm and tested for compression and tensile strength in 14 and 28 days. The result according to variations percentages in compression strength test on average at the age of 14 respectively were 18.495; 19.250; 20.382; 22.647 and 20.005 MPa. Whereas 28 days respectively were 18.495; 19.250; 20.382; 21.703 and 22.741 MPa. The results in tensile strength at the age of 14 respectively were 2.218; 2.029; 1.746; 1.557 and 1.463 MPa and 28-day age concrete respectively were 1.934; 2.029; 2.123; 2.029 and 1.840 MPa. The highest compressive and tensile strength in days 14 were 22.647 and 2.218, and in days, 28 were 22.741 and 2.123. It was observe that the strength has increased and groundnut shell ash seems promising material in concrete production.

研究目标是确定用作部分水泥替代物的花生壳灰对混凝土抗压强度的影响。燃烧结果得到的花生壳灰，通过200号筛。设计配比为21.7 MPa，花生壳灰的不同变化百分比按0%、5%、7.5%、10%和12.5%的顺序作为部分替代物水泥混合料。总共 60 个直径为 150 毫米、高度为 300 毫米的混凝土试样，并在 14 天和 28 天内测试了压缩和拉伸强度。14岁时抗压强度试验平均变异百分比结果分别为18.495；19.250；20.382；22.647 和 20.005 兆帕。而28天分别为18.495；19.250；20.382；21.703 和 22.741 兆帕。14岁时的抗拉强度结果分别为2.218；2.029; 1.746; 1.557 和 1.463 MPa 和 28 天龄混凝土分别为 1.934；2.029; 2.123；2.029 和 1.840 兆帕。第 14 天的最高抗压强度和抗拉强度分别为 22.647 和 2.218，第 28 天的最高抗压强度和抗拉强度分别为 22.741 和 2.123。据观察，强度有所增加，花生壳灰似乎是混凝土生产中很有前途的材料。