Clay cores

Gadomski D, Tysklind M, Irvine RL, Bums PC, Andersson R (2004) Investigations into the Vertical Distribution of PCDDs and Mineralogy in Three Ball Clay Cores from the United States Exhibiting the Natural Formation Pattern. Environ Sci Technol 38 4956... 

Although the use of X-ray radiography in the study of paintings is well known, its application to other museum objects has been more limited. However, X-ray radiography of several museum objects provided new, useful information a ceramic bowl is composed of unrelated fragments and plaster there is a clay core in a bronze figurine from ca,... 

One such extended record has been obtained for the Cenozoic for a North Pacific clay core (GPC3) by Farley (1995). There is some indication that the flux of He may have varied, perhaps due to meteorite impacts or possibly focusing, but the uncertainties in calibration of the He flux by independent methods of sediment-accumulation rate determination are far from perfect and more study is called for. Nevertheless, the prospect of using a constant He flux as a chronometric tool remains tantalizing. Farley (2001) provides a summary of results and concepts to the present time. 

Blake R. E. and Turekian K. K. (2000) Phosphate oxygen isotope composition of fish debris as a chronostratigraphic tool results from LL/14-GPC3 a Pacific red clay core. EOS 81(suppl. 2), F707. 

Further tests carried out by an independent body, as directed by the Engineer, also showed that the chemical grout proposed was satisfactory with regard to permanence and that there was very little likelihood of any leached material acting as a dispersive agent on the clay core. 

The dam was built in 1955 to store residual fly ash. A clay core was provided. By 1964 the storage basis was full, and the dam was raised 10 ft. In 1971, the enlarged basin was full. The crest would have to be raised another 30 ft to provide additional storage. 

King Talal Dam is built on the Zarqa River in Jordan to provide irrigation for 59,000 dunams of land along the Jordan River Valley. It is an earth and rockfill dam with a central clay core, about 100 meters high. A cross-section of the dam, shown in Figure 17.10, shows the location of the two major formations, the Kurnub sandstones and the Zarqa limestones, and also the location of two major faults in the left abutment. 

Figure 5.5. Typical radionuclide distribution profiles in the clay cores obtained after electromigration (Maes et al, 2001).

Core forming was one of the earliest methods used to shape glass (see Figure 21.3). A shape was fashioned in clay and the glass was then trailed around the core until it completely covered it. It could be heated further so that the coils fused together. When cool, the clay core would be removed leaving a stand-alone glass vessel. 

In archaeological contexts TL is most commonly used to date the firing of ceramics (including the clay cores sometimes found in metal castings) and burnt stone (particularly flint). OSL is used mostly to date sediment deposits. 

The situ graft copolymerization of MAH on PE is accompanied by crosslinking of the PE. The individual clay particles in the masterbatch and in the final PE-g-MAH-clay composite actually contain at least two outer layers surrounding the clay core... 

Even before the barrier dam was finished work started on the first polder. Before the polder dikes could be built unstable foundation soils were removed and replaced with compacted sand fill. The dike was constructed using a double boulder clay core and sand fill. Riprap, asphalt, and basalt revetments were placed on the dike body to protect against wave action. The pumping stations were constructed in the dike at locations where the primary discharge channels were planned. 

On completion, the seven columns were sampled at five depths through the clay core at 0, 50, 100, 150 and 200 mm. The samples were oven dried (105°C for 12 h), and ground to a fine powder, using a pestle and mortar and automated grinder. The ground samples were then digested in concentrated nitric and perchloric acid and analysed for a suite of metals by Inductively Coupled Plasma Atomic Emission Spectrometry (ICPAES) (Thompson Walsh 1983). An identical system of control columns... 

Zhang LL, Zhao S, Tian XN, Zhao X (2010) Layered graphene oxide nanostmctures with sandwiched conducting polymers as supercapacitor electrodes. Langmuir 26 17624-17628 Shao M, Li Z, Zhang R, Ning R, Wei M, Evans DG et al (2015) Hierarchical conducting polymer clay core-shell arrays for flexible all solid state supercapacitor devices. Small 11 3530-3538... 

The primary mechanism for observed long term embankment movements relate to the poor conditions of the embankment clay core, both as an inadequate sub-grade for the track and for overall structural stability. The factor of safety of the clay bank often being quite low. 

Sebesta, J. 2002. Visions of Gleaming Textiles and a Clay Core Textiles, Greek Women, and Pandora. In Llewellyn-Jones, ed., pp. 125-42. 

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