The traditional materials used in concrete will run out some day. Therefore, waste materials can be used as an alternative material in concrete production. Palm oil clinker (POC) is one of these wastes. A new method to improve the performance of waste material characteristics is to treat and grind the waste materials to achieve nano-particle size. This study focused on the improvement of concrete strength by using different proportions of nano-palm oil clinker powder (NPOCP) as cement replacement, with a full replacement of POC as the coarse aggregate. Numerous replacement levels for cement have been conducted using NPOCP with 0% as the control mix and 10%, 20%, 30% and 40% of the total binder weight to test slump, density and compressive strength. Results illustrated that the workability of semi-lightweight aggregate concrete (semi-LWAC) increases along with the increase of NPOCP content. Density also decreases along with the increase of NPOCP in the concrete mix. Moreover, the NPOCP with 40% as replacement level has the lowest compressive strength value among all other mixtures, and the 10% replacement level has the highest compressive strength of 39 MPa.

混凝土中使用的传统材料将耗费一天的时间。因此，废料可以用作混凝土生产中的替代材料。棕榈油熟料（POC）是这些废物之一。一种提高废料特性性能的新方法是对废料进行处理和研磨，以达到纳米尺寸。这项研究的重点是通过使用不同比例的纳米棕榈油熟料粉（NPOCP）替代水泥，而完全替代POC作为粗骨料来提高混凝土强度。使用NPOCP进行了许多水泥置换，其中0％作为对照混合物，总粘结剂重量的10％，20％，30％和40％用于测试坍落度，密度和抗压强度。结果表明，随着NPOCP含量的增加，半轻集料混凝土（semi-LWAC）的可加工性增加。密度也随着混凝土混合物中NPOCP的增加而降低。此外，替代水平为40％的NPOCP在所有其他混合物中具有最低的抗压强度值，替代水平为10％的NPOCP具有39 MPa的最高抗压强度。