Next Article in Journal
Work Function Adjustment by Using Dipole Engineering for TaN-Al2O3-Si3N4-HfSiOx-Silicon Nonvolatile Memory
Previous Article in Journal
Enhancing Corrosion and Wear Resistance of AA6061 by Friction Stir Processing with Fe78Si9B13 Glass Particles
Open AccessArticle

Effect of Industrial By-Products on Unconfined Compressive Strength of Solidified Organic Marine Clayey Soils

1
Department of Rural Construction Engineering, Kongju National University, Yesan 143-701, Korea
2
Institute of Agriculture & Life Science, Gyeongsang National University, Jinju 660-701, Korea
3
Laboratory of Soil and Water Engineering, Department of Civil and Environmental Engineering, Rensselaer Polytechnic Institute, 110 8th street, Troy, NY 12180, USA
4
Department of Agricultural Engineering, Gyeongsang National University, Jinju 660-701, Korea
*
Author to whom correspondence should be addressed.
Academic Editor: Jorge de Brito
Materials 2015, 8(8), 5098-5111; https://doi.org/10.3390/ma8085098
Received: 25 April 2015 / Revised: 19 July 2015 / Accepted: 31 July 2015 / Published: 7 August 2015
(This article belongs to the Section Advanced Composites)
The use of industrial by-products as admixture to ASTM Type I cement (ordinary Portland cement (OPC)) was investigated with the objective of improving the solidification of organic marine clayey soils. The industrial by-products considered in this paper were oyster-shell powder (OSP), steelmaking slag dust (SMS) and fuel-gas-desulfurized (FGD) gypsum. The industrial by-products were added to OPC at a ratio of 5% based on dry weight to produce a mixture used to solidify organic marine clayey soils. The dosage ratios of mixtures to organic marine clayey soils were 5, 10 and 15% on a dry weight basis. Unconfined compressive strength (UCS) test after 28 days revealed that the highest strength was obtained with the OPC + SMS 15% mixing ratio. The UCS of specimens treated with this mixture was >500 kPa, compared with 300 kPa for specimens treated with a 15% OPC + OSP mixture and 200 kPa when 15% of OPC was used alone. These results were attributed to the more active hydration and pozzolanic reaction of the OPC + SMS mixture. This hypothesis was verified through X-ray diffraction (XRD) and scanning electron microscopy (SEM) analyses, and was confirmed by variations in the calcium carbonate (CaCO3) content of the materials during curing. View Full-Text
Keywords: organic marine clayey soils; solidification agents; admixture; steelmaking slag; unconfined compressive strength organic marine clayey soils; solidification agents; admixture; steelmaking slag; unconfined compressive strength
Show Figures

Figure 1

MDPI and ACS Style

Park, C.-G.; Yun, S.-W.; Baveye, P.C.; Yu, C. Effect of Industrial By-Products on Unconfined Compressive Strength of Solidified Organic Marine Clayey Soils. Materials 2015, 8, 5098-5111.

Show more citation formats Show less citations formats

Article Access Map by Country/Region

1
Only visits after 24 November 2015 are recorded.
Back to TopTop