MECHANICAL STRENGTH AND STIFFNESS BEHAVIOUR OF CLASS F-POND ASH

Tropical Peat Soil Stabilization using Class F Pond Ash from Coal Fired Power Plant

This paper presents the stabilization potential of Class F pond ash (PA) from a coal fired thermal power station on tropical peat soil. Peat or highly organic soils are well known for their high compressibility, natural moisture content, low shear strength and long-term settlement. This study investigates the effect of different amount (i.e., 5, 10, 15 and 20%) of PA on peat soil, collected fro...

Nanoconfinement controls stiffness, strength and mechanical toughness of <f></f><!--${mbeta }$protect uturelet @let@token -->-sheet crystals in silk

Silk features exceptional mechanical properties such as high tensile strength and great extensibility, making it one of the toughest materials known. The exceptional strength of silkworm and spider silks, exceeding that of steel, arises from β-sheet nanocrystals that universally consist of highly conserved poly-(Gly-Ala) and poly-Ala domains. This is counterintuitive because the key molecular i...

Geotechnical Behaviour of Fine Sand Mixed with Pond Ash and Lime

The present work has been carried out to study the effect of lime and pond ash on geotechnical behaviour of fine sand. Fine sand found in deserts and near sea shores is not readily suitable for supporting buildings and roads, as it is loose and vulnerable to collapse upon wetting. Fine sand having high permeability and low shear strength is also not suitable for earthen dam construction. For th...

Relative solubility of cations in Class F fly ash.

Coal utilization byproducts (CUB), such as fly ash, contain cations that may be released during exposure to fluids such as acid rain or acid mine drainage. Researchers at the Department of Energy's National Energy Technology Laboratory (DOE/NETL) have conducted a long-term column leaching study of 32 Class F fly ash samples from pulverized coal (PC) combustion, and quantified the release of 19 ...

Self-degradable Slag/Class F Fly Ash-Blend Cements