LABORATORY CHARACTERIZATION OF MODIFIED POROUS ASPHALT WITH NANO CaCO3 AND BUTON GRANULAR ASPHALT (BGA)
The latest research that combines two natural materials, namely nano CaCO3 and Buton Granular Asphalt (BGA), aims to determine their effect on the performance of Porous Asphalt (AP) mixtures based on mechanistic updates. This study's characterization was carried out using the Particle Size Analyzer (PSA) and Scanning Electron Microscope (SEM) techniques. The results show that the CaCO3 nanomaterial has a very small particle size on the nanometer scale and has an orderly crystal structure. Nano CaCO3 can strengthen mixed bonds due to its excellent absorption properties. Furthermore, as a local material, BGA contains highly aromatic and resinous materials, which increase stiffness with sufficient flexibility limits to withstand traffic loads. 2% and 3% nano CaCO3 and 3% BGA were used as mixture variations. The performance of the mixture was evaluated by testing Marshall, Cantabro Loss, Asphalt Drain Down, Permeability, and Indirect Tensile Strength. The greatest increase occurred by adding 2% nano CaCO3 and 3% BGA by 17%. The results showed that adding nano CaCO3 and BGA with the right proportions could improve the performance of the AP mixture.
Porous Asphalt. Nano CaCO3. BGA. Characterization