Browsing by Author "Chalermpon Wungsumpow"

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    Enhancement of Compressive Strength in Cement Admixed Bangkok Clay with Glass Fiber and Bottom Ash for Eco-Friendly Functional Road Materials
    (Semnan University, Faculty of Mechanical Engineering, 2025) Sakol Pochalard; Chalermpon Wungsumpow; Keeratikan Piriyakul; K. Piriyakul; Department of Civil and Environmental Engineering Technology, College of Industrial Technology, King MongkutÕs University of Technology North Bangkok, Bangkok, Thailand; email: keeratikan.p@cit.kmutnb.ac.th
    This article aims at the development of new eco-friendly functional road materials, examining the optimum mixing ratio of cement, bottom ash, glass fibers, and the mechanical properties of soil-cement subbase (pavement) materials. The optimum ratio of cement, bottom ash, and glass fibers was determined for the mixing of soil-cement as eco-friendly functional road materials. This study was carried out by using the unconfined compression test. All soil-cement samples were mixed at the liquid limit of 88%, with varying glass fiber content between 0.5, 1.0, 1.5, 2.0, and 2.5% by volume respectively. The glass fiber lengths were used 3, 6, and 12 mm. The OPC content was added between 2, 4, 6, 8, and 10%, respectively by dry weight. The bottom ash content was 5, 10, 15, 20, 25 and 30% by volume respectively. All soil-cement samples were cured for 7, 14, 28, 60 and 90 days. It was found that the optimum OPC soil-cement content mixture was around 8-10% according to ACI 230.1R-09 standard which requires OPC of 10-16% and the optimum fiber content was between 1.0 and 1.5%. The best UCS result for glass fiber length was 12mm. Finally, the optimum bottom ash content was 5-10%, and the recommended curing period should exceed 28-90 days. © 2025 The Author(s).
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    Enhancement on compressive strength of Bangkok clay cement using novel high-strength polyethylene fibers
    (Institute of Physics, 2024) Sakol Pochalard; Chalermpon Wungsumpow; Keeratikan Piriyakul; K. Piriyakul; Center of Excellence in Structural Dynamics and Urban Management, Science and Technology Research Institute, Department of Civil and Environmental Engineering Technology, College of Industrial Technology, King Mongkut's University of Technology North Bangkok, Bangkok, Thailand; email: keeratikan.p@cit.kmutnb.ac.th
    This study aims to investigate the effect of novel high-strength polyethylene fibers on the unconfined compressive strength (UCS) behavior of concrete produced with admixed Bangkok clay cement. Bangkok clay samples were prepared at a liquid limit of 88% and were added to ordinary Portland cement (OPC) at 2, 4, 6, 8 and 10% by weight; polyethylene fibers were also added at 0.5, 1.0, 1.5, 2.0 and 2.5% by volume. These samples were cured for 7, 14, and 28 days and subjected to an unconfined compressive test. From the test results, the cement content of 8% by weight was the optimum, and a polyethylene fiber content of 1% by volume is recommended. Moreover, the novel high-strength polyethylene fiber with 0.2 mm in diameter and 6 mm in length provided the maximum UCS value. © Published under licence by IOP Publishing Ltd.
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    Improving Mechanical Behavior of Compacted Cement Sand Mixed with Glass Powder from Glass Industry and Glass Fiber for Green Construction Materials
    (Springer, 2024) Prapatsorn Prathungthai; Chalermpon Wungsumpow; Sakol Pochalard; Keeratikan Piriyakul; K. Piriyakul; Department of Civil and Environmental Engineering Technology, Center of Excellence in Structural Dynamics and Urban Management, Science and Technology Research Institute, College of Industrial Technology, King MongkutÕs University of Technology North Bangkok, Bangkok, Thailand; email: keeratikan.p@cit.kmutnb.ac.th
    The purpose of this research is to examine the mechanical behavior of compacted cement sand with the addition of glass fibers, glass powder from the glass industry, and Ordinary Portland Cement (OPC). Finding the optimal proportions of OPC, glass powder, and glass fibers in the soilÐcement mixture to create a novel green building material is the aim of this study. Every sample of compacted cement sand was created with a glass fiber content of 0.5, 1.0, 1.5, 2.0, and 2.5% by volume, and a variation in glass fiber lengths of 3, 6, and 12Êmm. The optimal moisture content for the samples was 6.19%. OPC content was applied at weights of 2, 4, 6, 8, and 10%. At 10, 20, 30, 40, and 50% of the cement, glass powder was added. After that, the samples of compacted cement were left for 7, 14, and 28Êdays in order to examine how the green building materials aged. The unconfined compression test was conducted on these samples of compacted cement sand in accordance with ASTM D1633-17. Based on the testing findings, it was determined that 8% cement is the right amount to combine with clayey soil, 1.0% glass fibers with a length of 6Ð12Êmm, and 20% glass powder with a curing period up to 28Êdays are the right amounts. As a result, it has been demonstrated that glass fiber and powder are green building materials. By lowering the required amount of cement, our findings help ThailandÕs future cement demand. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.