Correlation Analysis of Laboratory Compaction of Fly Ashes

Fly ash, a waste from thermal power stations, has been used in many countries to build highway embankments, fills, landfill liners, and covers. The maximum dry density (MDD) and optimum moisture content (OMC) of fly ash or fly ash–soil mixtures are determined by conducting compaction test. There is a large variation in the MDD and OMC of different fly ashes due to the differences in their characteristics. In the present study, data regarding the compaction characteristics and specific gravity (G) of different fly ashes were collected. Correlation analyses of the data for 57 samples for light (standard Proctor) compaction and 21 samples for heavy (modified Proctor) compaction were carried out. Correlations have been developed for MDD and OMC for both light and heavy compaction. The correlation for MDD in terms of OMC and G and that between MDD and OMC have been expressed in the form of log-log, exponential, and linear curves. The general applicability of the correlations for light compaction has been teste...

[1]  S Raymon,et al.  PULVERIZED FUEL ASH AS EMBANKMENT MATERIAL. , 1961 .

[2]  Pranab Kumar Sen,et al.  Multivariate Analysis (2nd ed.). , 1983 .

[3]  T. Edil,et al.  Permeability of Fly Ash and Fly Ash-Sand Mixtures , 1985 .

[4]  A. M. DiGioia,et al.  Fly ash design manual for road and site applications , 1986 .

[5]  P. M. Berthouex,et al.  Fly Ash as a Potential Waste Liner , 1987 .

[6]  F. Mondragón,et al.  New perspectives for coal ash utilization: synthesis of zeolitic materials☆ , 1990 .

[7]  J. S. Browning,et al.  Properties and Use of Fly Ashes for Embankments , 1990 .

[8]  T. Edil,et al.  INTERACTION OF INORGANIC LEACHATE WITH COMPACTED POZZOLANIC FLY ASH , 1992 .

[9]  P. Primerano,et al.  Study of the pre-crystallization stage of hydrothermally treated amorphous aluminosilicates through the composition of the aqueous phase , 1993 .

[10]  N. Shigemoto,et al.  Selective formation of Na-X zeolite from coal fly ash by fusion with sodium hydroxide prior to hydrothermal reaction , 1993, Journal of Materials Science.

[11]  Chihpin Huang,et al.  Treatment of Metal Industrial Wastewater by Fly Ash and Cement Fixation , 1994 .

[12]  X. Querol,et al.  Synthesis of zeolites by alkaline activation of ferro-aluminous fly ash , 1995 .

[13]  K. Yasuhara,et al.  COAL ASH SLURRY FOR EFFECTIVE UNDERWATER DISPOSAL , 1995 .

[14]  N. Pandian,et al.  Influence of pH on the retention of heavy metal ions by fly ash , 1996 .

[15]  N. Pandian,et al.  Fly Ash as a Pre-Filter Material for the Retention of Lead Ions , 1996 .

[16]  D. Singh,et al.  Thermal characteristics of a class F fly ash , 1998 .

[17]  S. Komarneni,et al.  Characterization and cation exchange properties of zeolite synthesized from fly ashes , 1998 .

[18]  Shenbaga R. Kaniraj,et al.  GEOTECHNICAL CHARACTERISTICS OF FLY ASH-SOIL MIXTURES , 1999 .

[19]  G. Hollman,et al.  A two-step process for the synthesis of zeolites from coal fly ash , 1999 .