In-situ Fine Basalt Soil Reinforced by Cement Combined with Additive DZ33 to Construct Rural Roads in Gia Lai Province, Vietnam

Document Type : Original Article


1 Roads Management Center, Ho Chi Minh City, Vietnam

2 University of Transport and Communications, Ha Noi, Vietnam

3 Faculty of Civil Engineering, Ton Duc Thang University, Ho Chi Minh City, Vietnam

4 Research Institute of transportation Science & Roadway Laboratory 3, Ho Chi Minh City, Vietnam


Today, the use of additives to enhance the load-bearing capacity of the soil has been applied to some rural roads in a number of provinces in Viet Nam, proving the outstanding advantages. This paper presents the results of research work and techno-application to rural road construction with on-spot fine basalt soil combined with adhesives including cement PCB40 and additive DZ33. The experimental results show that additive DZ33 has made it possible to increase the hydration ability with cement when effectively reacting with soil particles to reduce construction costs and environmental harms, improve the intensity of reinforced soil mix such as Elastic modulus of reinforced soil (Es), splitting tensile strength (fst), compressive strength (fs) and California Bearing Ratio (CBR). Successful application of additive DZ33 combined with cement in soil reinforcement to build rural transport works not only brings about economic efficiency but also, makes use of in-situ fine basalt soil to create a new material for the construction industry, humbly contributing to the study of rural road development in Gia Lai mountainous province in particular and Vietnamese transport infrastructures in general.


  1. Harichane, K., Ghrici, M. and Kenai, S., "Effect of the combination of lime and natural pozzolana on the compaction and strength of soft clayey soils: A preliminary study", Environmental Earth Sciences,  Vol. 66, No. 8, (2012), 2197-2205,
  2. Harichane, K., Ghrici, M., Kenai, S. and Grine, K., "Use of natural pozzolana and lime for stabilization of cohesive soils", Geotechnical and Geological Engineering,  Vol. 29, No. 5, (2011), 759-769,
  3. Harichane, K., Wiam, K., Ghrici, M. and Missoum, H., "Effect of the combination of lime and natural pozzolana on the durability of clayey soils", Electronic Journal of Geotechnical Engineering,  Vol. 15, No., (2010), 1194-1210.
  4. Malisa, A.S., Park, E. and Lee, J., "Effect of lime on physical properties of natural pozzolana from same, tanzania", International Journal of Engineering Research & Technology,  Vol. 3, No. 11, (2014), 1357-1361.
  5. Al-Swaidani, A., Hammoud, I. and Meziab, A., "Effect of adding natural pozzolana on geotechnical properties of lime-stabilized clayey soil", Journal of Rock Mechanics and Geotechnical Engineering,  Vol. 8, No. 5, (2016), 714-725,
  6. Mfinanga, D.A. and Kamuhabwa, M.L., "Use of natural pozzolan in stabilising lightweight volcanic aggregates for roadbase construction", International Journal of Pavement Engineering,  Vol. 9, No. 3, (2008), 189-201,
  7. Sharpe, G.W., Deen, R.C., Southgate, H.F. and Anderson, M., "Pavement thickness designs utilizing low – strength (pozzolanic) base and subbase materials", 1984, Kentucky Transportation Center Research Report. 693.122-130,
  8. Javdanian, H., "The effect of geopolymerization on the unconfined compressive strength of stabilized fine-grained soils", International Journal of Engineering,  Vol. 30, No. 11, (2017), 1673-1680, Doi: 1610.5829/ije.2017.1630.1611b.1607.
  9. ASTM C150 / C150M-09, Standard Specification for Portland Cement, ASTM International, West Conshohocken, PA, 2009, DOI: 10.1520/C0150_C0150M-1509.
  11. TCVN 4198:1995, Soils - Laboratory Methods of Determination of Grain Size Distribution.
  12. TCVN 4197-1995, Soils- Methods of Laboratory Determination of Plastic Limit and Liquid Limit.
  13. ASTM D1883-16, Standard Test Method for California Bearing Ratio (CBR) of Laboratory-Compacted Soils, ASTM International, West Conshohocken, PA, 2016, DOI: 10.1520/D1883-1516.
  14. 22 TCN 59-84, Testing process of soil reinforced with cement-lime binder.
  15. Tolleson, R.A., Mahdavian, E., Shatnawi, F.M. and Harman, E.N., "An evaluation of strength change on subgrade soils stabilized with an enzyme catalyst solution using CBR and SSG comparisons", 2003: Project No.R-03-Utc-Alterpave-Geo-01.