ABSTRACT
ABSTRACT Studies of the concrete surface and durability concerns such as biofouling or material permeability were and remain difficult due to lacks of appropriate index for describing the concrete textures at the microscale. This research focused on utilizing parameters from the 2D image analysis to describe the differences of the concrete surface under the following conditions; normal, rough by bleeding, applying abrasive force, and acidic attack. It appeared parameters concerning microcracks and cement hydrate particles could tell the differences. Findings suggested vast dissimilarity in microcrack length and width between the normal case and the surface under acidic attack at ×100 magnification. Moreover, the amounts of cement hydrate particles at ×1000 magnification significantly increased when the concrete samples were put under specific deterioration-simulated effects which were surface abrasion and acidic attack. In summary, the results suggested two parameters; microcrack, and particle size distribution were eligible for describing surface conditions at the microscopic level.
