Recycled waste materials have been investigated in different ways in civil engineering applications and at these studies the usability of waste materials have been examined in concrete production, road construction and soil improvement. In this study, the effect of recycled nano carbon black (nano-CBr) on consistency limits and unconfined compressive strength properties of clayey soils was investigated. For this purpose, 4 different ratios (1%, 3%, 5% and 10%) nano-CBr were mixed to 3 different clay soils (White, Green and Red clays). In order to determine the mineralogical and chemical properties of mixtures, pH, TDS, X-Ray, SEM and contact angle tests were also performed. In this study, 1% nano-CBr ratio was generally determined as the limit value in all experiments. The consistency properties of the mixed samples have not significantly changed for the red and green clay but have importantly affected the white clay properties. Based on the 1% nano-CBr ratio, the unconfined compressive strength (UCS) values of all mixed samples increased. Addition of super hydrophobic nano-CBr to clay soils, turned clay soils into a hydrophobic material, is resulting in an increase in the contact angle values. On the other hand, pH values did not show a significant change with the increase of the nano-CBr ratio. The total dissolved solids (TDS) measurements showed a series of rise and fall steps with the increase of nano-CBr ratio and showed a tendency to stabilize at 10% nano-CBr ratio.

在土木工程应用中，已对回收的废料进行了不同的研究，在这些研究中，对废料的可用性进行了混凝土生产，道路建设和土壤改良等方面的研究。在这项研究中，研究了再生纳米炭黑（nano-CBr）对黏性土壤的稠度极限和无侧限抗压强度特性的影响。为此，将4种不同比例（1％，3％，5％和10％）的纳米CBr混合到3种不同的粘土中（白色，绿色和红色粘土）。为了确定混合物的矿物学和化学性质，还进行了pH，TDS，X射线，SEM和接触角测试。在这项研究中，通常在所有实验中将1％的纳米CBr比确定为极限值。对于红色和绿色粘土，混合样品的稠度特性没有显着变化，但对白色粘土的性能有重要影响。基于1％的纳米CBr比，所有混合样品的无侧限抗压强度（UCS）值均增加。将超级疏水性纳米CBr添加到粘土中，将粘土变成疏水性材料，导致接触角值增加。另一方面，随着纳米CBr比的增加，pH值没有显示出明显的变化。总溶解固体（TDS）测量结果显示，随着纳米CBr比率的增加，一系列上升和下降步骤，并显示出稳定在10％纳米CBr比率的趋势。所有混合样品的无侧限抗压强度（UCS）值均增加。将超级疏水性纳米CBr添加到粘土中，将粘土变成疏水性材料，导致接触角值增加。另一方面，随着纳米CBr比的增加，pH值没有显示出明显的变化。总溶解固体（TDS）测量结果显示，随着纳米CBr比率的增加，一系列上升和下降步骤，并显示出稳定在10％纳米CBr比率的趋势。所有混合样品的无侧限抗压强度（UCS）值均增加。将超级疏水性纳米CBr添加到粘土中，将粘土变成疏水性材料，导致接触角值增加。另一方面，随着纳米CBr比的增加，pH值没有显示出明显的变化。总溶解固体（TDS）测量结果显示，随着纳米CBr比率的增加，一系列上升和下降步骤，并显示出稳定在10％纳米CBr比率的趋势。