In a groundbreaking study published in the journal “Mechanics of Advanced Composite Structures,” researchers have made significant strides in developing eco-friendly road materials that could revolutionize the construction industry, particularly in regions like Bangkok, where clay soils pose unique challenges. Led by Sakol Pochalard from the Doctor of Engineering Program in Construction Engineering Technology at King Mongkut’s University of Technology North Bangkok, the research explores the optimal combination of cement, bottom ash, and glass fibers to enhance the compressive strength of soil-cement subbase materials.
The study is particularly timely, as the construction sector is increasingly seeking sustainable alternatives to traditional materials. Pochalard’s team conducted extensive tests to determine the best mixing ratios of Ordinary Portland Cement (OPC), bottom ash, and glass fibers, focusing on their mechanical properties. “Our findings suggest that using 8-10% OPC in combination with 1.0 to 1.5% glass fibers significantly improves the strength of the material,” Pochalard stated. This is crucial for engineers and contractors looking to optimize the structural integrity of roads while minimizing environmental impact.
The research highlights the use of bottom ash, a byproduct of coal combustion, which not only reduces waste but also lowers the overall carbon footprint of road construction. The study found that incorporating 5-10% bottom ash by volume yields the best results, aligning with global trends toward recycling and sustainability in construction practices. “By utilizing materials that would otherwise be discarded, we can create stronger, more durable road surfaces that are also eco-friendly,” Pochalard emphasized.
In addition to the material composition, the study examined the effects of varying curing times on the soil-cement samples, recommending a period of 28 to 90 days for optimal results. This aspect could have significant implications for project timelines and costs, as longer curing times may require adjustments in construction schedules.
The implications of this research extend beyond just Bangkok. As cities around the world grapple with the challenges of urbanization and climate change, the development of eco-friendly materials could pave the way for more sustainable infrastructure. The construction sector stands to benefit not only from enhanced material performance but also from the potential cost savings associated with using recycled materials.
As the industry moves towards more sustainable practices, Pochalard’s research provides a compelling case for the integration of innovative materials in road construction. The findings serve as a call to action for engineers and construction firms to rethink their material choices and embrace eco-friendly alternatives that can lead to more resilient and sustainable infrastructure.
For more information about the research and its implications, visit the Doctor of Engineering Program in Construction Engineering Technology at King Mongkut’s University of Technology North Bangkok.
