Property characterization of glass fiber-reinforces concrete tactile paving block using waste marble powder as partial replacement to fine aggregates/
Kenneth D. Alfonso, Arbie D. Caballero, Mark Gerald B. Cruz, Erwin C. Daguel, and John Khryzz O. David .--
- Manila: Technological University of the Philippines, 2023
- xiii, 145pages: 29cm. +1 CD-ROM ( 4 3/4in.)
Thesis (undergraduate)
College of Engineering .--
Includes bibliography:
This study assesses the potential of glass fiber-reinforced concrete (GFRC) for enhancing the durability and strength of tactile paving blocks. A primary focus is placed on advocating for standardized installation and design practices in the context of tactile paving, emphasizing the study's relevance to improving navigational aids for individuals with visual impairments in public spaces. The methodology involves incorporating waste marble powder into concrete mix designs, adhering to ASTM standards for rigorous testing. Fifteen specimens with distinct mix designs undergo assessments of physical properties, including water absorption and slump tests. Sixty paving block samples undergo varying curing periods, followed by evaluations of mechanical properties like compressive strength and skid resistance, all in accordance with ASTM guidelines. This rigorous approach ensures standardized testing procedures. Results reveal key insights into the effectiveness of different mix designs. Mix 3, with 25% waste marble powder and 75% sand with AR Glass Fiber, emerges as the most suitable and economical option, displaying superior workability and strength. Mix 4, with a 50-50 ratio of waste marble powder and sand with AR Glass Fiber, demonstrates noteworthy skid resistance. These findings underscore the practical implications of Mix 3, offering a promising solution for crafting durable tactile paving blocks and contributing valuable insights to the advancement of navigational aids for visually impaired individuals in public spaces.