Feasibility Study of Modified Patching Premix Design Using Response Surface Methodology (RSM)

Abstract

Road patching is a short-term solution used to repair road surface fractures and to ensure the efficiency of transport functions and road user safety. The patching also prevents the road subgrade from worsening if the failure is repaired immediately. The continued surface failure caused on the road is due to high traffic loads and poor-quality construction. If the surface failure is not restored immediately, it could increase the risk to the safety of road users at a hazardous stage, mainly motorcyclists. This study uses a design thinking method to solve the problem and gain the idea. An exploratory empathy process is carried out randomly on the selected road samples. The maintenance practical procedure information carried out by local municipalities or private agencies is also studied to support the literature from previous research. The article will apply primary data as the initial review study. Furthermore, the Response Surface Methodology (RSM) application is identified to get a design model to simplify the design ratio. The result showed that the cubic model was the most equivalent and optimum with the squared R-value of 0.9886. It shows that the correlation of the selected variables is appropriate.