Study Effects of Gradation and Material Thermal Property of Chip Seal Aggregates in Roller Concrete Pavement Crack Healing by Image Processing and RMS

Abstract

One of the most roller cement concrete pavement failures of pavement is the formation of first cracks. The roughness of its completed surface after the installation has restricted the usage of this pavement. Therefore, engineers increase the quality of service of this pavement by placing a layer of asphalt coating; The primary goal of this study is to evaluate the impact of particle size and type of chip seal aggregates on filling cracks in rolled concrete pavement. Accordingly, rolled concrete samples with chip seal covering were prepared with various aggregates (limestone, steel slag, and copper slag). Then, the influence of temperature on its self-healing ability was tested by putting the samples in the microwave device for cracking improvements. With the aid of Design Expert Software and image processing, the Response Surface Method reviewed the data analysis. Even though due to the study’s limitations, a constant mixing design was applied, the results of this study indicate that the amount of crack filling and repair in specimens slag is higher than that of aggregate materials. With the increase of steel and copper slag, 50% of repair and crack repair at 30 °C, the temperature is 27.13% and 28.79%, respectively, and at 60 °C, the temperature is 58.7% and 59.4%, respectively.

Research on mechanical properties of concrete by nano-TiC-BF-fly ash

“…Currently, the RSM has been widely used to solve the problem of optimizing the proportion of composite materials in the field of concrete 22 – 25 . Norozi et al 26 incorporated limestone, steel slag, and copper slag into concrete. The RSM was used to optimize the concrete mix ratio and improve the resistance of concrete pavement to cracking.…”

“…Therefore, the amount of concrete additives is optimized by the RSM. This initiative, not only reduces the number of experimental groups, but also obtains more precise amounts of substance 26 – 34 .…”