Physical Properties of Fly Ash-Treated Minesoils

Gorman, James M.; Sencindiver, J.; Keefer, Robert F.; Singh, Rajinder

doi:10.21000/jasmr91010389

Cited by 2 publications

(5 citation statements)

References 3 publications

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“…Fly ash aggregation likely resulted from a combination of plant root effects (physical binding and root exudates), fungal hyphae, and microbial products of decomposition of organic matter (sawdust). Aggregate stability cf fly ash with the addition of organic matter was approximately three times greater in this study than values obtained from a similar study using pure unamended Albright fly ash (Gorman et. al., 1991).…”

Section: Particle Size Distributioncontrasting

confidence: 71%

“…Infiltration rates were much greater when a sampling point was located on or near a pocket of sawdust than when it was located on pure fly ash. The addition of organic matter (sawdust) greatly improved fly ash infiltration rates since fly ash infiltration values in this study were more than seven times greater than those found in the unamended pure Albright fly ash (Gorman et. al., 1991).…”

Section: Particle Size Distributionmentioning

confidence: 56%

“…Albright fly ash has been used extensively in this areaforrevegetation studies (Bhumbla et. al., 1991a;Gorman et. al., 1991;Keefer et.…”

Section: % Slope Sitementioning

confidence: 99%

“…In the last decade, pure unamended fly ash has been successfully used as a topsoil substitute in reclaiming drastically disturbed mine sites in the eastern United States by improving both soil chemical and physical properties (Bhumbla et. al., 1991b;Gorman et. al., 1991).…”

Section: Introductionmentioning

confidence: 99%

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Erodibility of Fly Ash-Treated Minesoils

Gorman¹,

Sencindiver²,

Horvath³

et al. 1997

ASMR

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Fly ash, a by-product of coal-fired power plants, has been used successfully in reclaiming adverse mine sites such as abandoned mine lands by improving minesoil chemical and physical properties. But, the fine sand-silt particle size of fly ash may make it more susceptible to detachment and transport by erosive processes. Furthermore, the high content of silt-size particles in fly ash may make it more susceptable to surface crust formation resulting in reduced infiltration and increased surface runoff and erosion. In the summer of 1989, fly ash/wood waste mixtures were surface applied on two separate mine sites, one with 100/o slope and the other 200/o slope, in central Preston County, West Virginia. Erosion rates were measured directly using the Linear Erosion/Elevation Measuring Instrument (LEMI). Erosion measurements were taken during the first two growing seasons on both sites. Erosion values were up to five times greater on the fly ash-treated minesoil than on the minesoil without fly ash cover. Mulching with wood chips reduced fly ash erosion to about one-half the loss of the unmulched plots. Erosion was related to both the amount and type of ground cover. Increased vegetative ground cover resulted in reduced erosion. Mosses and fungi appeared to provide better erosion protection than grass-legume cover.

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Section: Particle Size Distributioncontrasting

confidence: 71%

Section: Particle Size Distributionmentioning

confidence: 56%

“…Albright fly ash has been used extensively in this areaforrevegetation studies (Bhumbla et. al., 1991a;Gorman et. al., 1991;Keefer et.…”

Section: % Slope Sitementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Erodibility of Fly Ash-Treated Minesoils

Gorman¹,

Sencindiver²,

Horvath³

et al. 1997

ASMR

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“…Cole (1976) reported that water stable aggregates on minesoils had less clay than the total soil fraction, indicating that something other than clay may be serving as the binding agent for minesoil aggregates. Gorman et al (1991) address the idea of an alternate binding agent, other than clay. They suggested that calcium carbonate was acting as the aggregating agent in their study of physical properties of fly ash-treated minesoils.…”

Section: Physical Properties Of Minesoilsmentioning

confidence: 99%

Characterization and quality of soils developing on a mountaintop removal coal mine

Thomas¹

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Characterization and Quality of Soils Developing on a Mountaintop Removal Coal Mine Kevin Thomas Mountaintop surface mining for coal has been practiced in West Virginia for over three decades, but its environmental impacts have become increasingly scrutinized in recent years. Therefore, this study evaluated soil development on different aged mined lands. Four different ages (2, 7, 11, and 23 years) of minesoils and two different slope classes, nearly level to gently sloping and steep to very steep, along with three contiguous native soils on a reclaimed mountaintop removal mine in Logan County, West Virginia were described and sampled. Standard analyses of physical and chemical properties were conducted in order to classify these soils. Some of the data also were used to test a productivity index for Appalachian minesoils. Physical analyses of these soils revealed the minesoils are developing with age, indicated by increasing A horizon thickness, solum thickness, and increased aggregate stability with time. Chemical analyses showed higher N with minesoil age. Minesoils had higher bases, pH, and base saturation than native soils, but native soils had higher carbon, nitrogen, aluminum, and manganese. Current accepted soil classification names give little information on the unique properties of these minesoils, but three proposed modifications to Soil Taxonomy reveal more useful knowledge. The calculated productivity index showed the minesoils as a group to be less productive than native soils, but the older minesoils were similar to the native soils.

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Physical Properties of Fly Ash-Treated Minesoils

Cited by 2 publications

References 3 publications

Erodibility of Fly Ash-Treated Minesoils

Erodibility of Fly Ash-Treated Minesoils

Characterization and quality of soils developing on a mountaintop removal coal mine

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