ENHANCED SOIL PILES WITH PORTLAND CEMENT-RHA-MWCNT MIX FOR DEEP MIXING METHODS IN LOW-RISE BUILDING AND BRIDGE FOUNDATIONS

Authors

  • Roger G. Dingcong Jr. Center for Sustainable Polymers, Mindanao State University – Iligan Institute of Technology, 9200 Iligan City, Philippines
  • Applegen l. Cavero AC Joyo Design and Technical Services, Davao City 8000, Philippines
  • Kaye Junelle M. Pantaleon Materials Science and Engineering Program, Graduate School of Engineering, Mindanao State University – Iligan Institute of Technology, 9200 Iligan City, Philippines
  • Felrose F. Maravillas College of Engineering, Capitol University, Cagayan de Oro City 9000, Philippines
  • Mary Ann N. Ahalajal Department of Civil Engineering and Technology, Mindanao State University – Iligan Institute of Technology, Iligan City 9200, Philippines
  • Evalyn Joy C. Cea Department of Civil Engineering and Technology, Mindanao State University – Iligan Institute of Technology, Iligan City 9200, Philippines
  • Leanne Christie C. Mendija Materials Science and Engineering Program, Graduate School of Engineering, Mindanao State University – Iligan Institute of Technology, 9200 Iligan City, Philippines
  • Kassandra Jayza Gift D. Tejas Center for Sustainable Polymers, Mindanao State University – Iligan Institute of Technology, 9200 Iligan City, Philippines
  • Sean Kenneth E. Manlupig Materials Science and Engineering Program, Graduate School of Engineering, Mindanao State University – Iligan Institute of Technology, 9200 Iligan City, Philippines
  • Roberto M. Malaluan Center for Sustainable Polymers, Mindanao State University – Iligan Institute of Technology, 9200 Iligan City, Philippines
  • Arnold A. Lubguban Center for Sustainable Polymers, Mindanao State University – Iligan Institute of Technology, 9200 Iligan City, Philippines

DOI:

https://doi.org/10.11113/aej.v15.21897

Keywords:

Deep foundation, soil piles, soil stabilization, rice husk ash, multi-walled carbon nanotube

Abstract

Soft soil's low strength and high deformation characteristics pose significant challenges in low-rise building and bridge constructions. This research introduces an innovative method to fortify soft soil using Portland cement (PC), rice husk ash (RHA), and multi-walled carbon nanotubes (MWCNTs) as additives for reinforced soil pile (RSP) development through a deep mixing technique. The physico-mechanical characterization result reveals a remarkable 83% (1075 to 1962 kg/m3) increase in average density and a significant 405% (4.14 to 20.92 MPa) enhancement in compressive strength after 28 days of curing, achieved with the addition of only 0.04 wt% MWCNT to the soil-PC-RHA mixture. Furthermore, a large-scale static load test was conducted to assess its translational efficiency in a real-world scenario. The result revealed a comparable compressive strength between the laboratory-scale and large-scale implementation (20.9 MPa vs. 23.4 MPa). This substantial improvement, attributed to the synergistic effects of MWCNT, surpasses the performance of traditional soil-PC-RHA blends in the literature. By leveraging the distinctive attributes of PC, RHA, and MWCNT, this eco-friendly technology offers a promising alternative for high-strength low-rise construction, addressing the inherent limitations of soft soils and presenting transformative potential with far-reaching implications for geotechnical engineering and sustainable infrastructure development.

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Published

2025-02-28

Issue

Vol. 15 No. 1: March 2025

Section

Articles

How to Cite

ENHANCED SOIL PILES WITH PORTLAND CEMENT-RHA-MWCNT MIX FOR DEEP MIXING METHODS IN LOW-RISE BUILDING AND BRIDGE FOUNDATIONS. (2025). ASEAN Engineering Journal, 15(1), 49-56. https://doi.org/10.11113/aej.v15.21897