Cambridge University Press (CUP)
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Geology of the Clay Deposits in the Olive Hill District, Kentucky
Cambridge University Press (CUP) - Tập 7 - Trang 178-194 - 1958
AbstractTHE Olive Hill fire clay bed of Crider (1913) is the principal source of
the raw material used in the refractory industry of eastern Kentucky. The bed is
a discontinuous underclay from 1 to 20 ft above a prominent unconformity which
separates Mississippian and Pennsylvanian rocks. Upper Mississippian rocks
consist of ten marine limestone and shale units all truncated by the
unconformity. P...
The Mechanism of the Deformation of Clay
Cambridge University Press (CUP) - Tập 2 - Trang 480-491 - 1953
AbstractKaolinite-water mixtures, containing from 23 percent to 33 percent
water, were subjected to compression plastometer tests and their plasticity was
studied by means of the calculated strain-stress functions. X-ray diagrams taken
of the compressed samples showed that an oriented texture developed during the
compression, i.e., the basal planes of the flaky clay particles were arranged
paralle...
The Mechanism of Dehydration of Mg-Vermiculite
Cambridge University Press (CUP) - - 1955
AbstractThe hydrated Mg-vermiculite lattice contains double sheets of water
molecules interleaved with silicate layers. In the fully hydrated condition,
each water sheet is arranged in a regular hexagonal pattern and the interlayer
cations are located midway between water sheets in octahedral
coordination.Release of water molecules from interlayer positions leads at first
to a gradual contraction ...
Flow Properties of the Kaolinite-Water System
Cambridge University Press (CUP) - Tập 3 - Trang 549-556 - 1954
For the last 20 years, the Ceramic Division at the Massachusetts Institute of
Technology has been carrying on basic work with the kaolinite-water system. The
results have been published from time to time in the Journal of the American
Ceramic Society under the title of “Fundamental Study of Clay.”At the start, it
was realized that natutal clays were so complex that it would be impossible to
consid...
A Discussion of the Water Content of Vermiculite
Cambridge University Press (CUP) - - 1958
AbstractSelected chemical and diffraction analyses from the literature,
supplemented by thermal and thermogravimetric analyses and infrared absorption
observations, are utilized to construct a rational model of the water
arrangement in natural vermiculites.A super cell is arranged by simple
modification of the Hendricks water nets to accommodate the somewhat higher
water contents, indicated by wei...
Distribution of Clay Minerals and Ion-Exchange Capacity in Some Sedimentary Materials
Cambridge University Press (CUP) - Tập 2 - Trang 264-276 - 1953
AbstractThe cation-exchange capacity of the clay fraction was determined in 67
samples of various types of sedimentary materials, and the clay minerals were
identified from x-ray diffractometer patterns of oriented aggregates. The
probable quantitative clay mineral composition was established for each sample
assuming a comparable degree of crystallinity for the clay minerals in the
sample. Agreeme...
Current Progress in Silicate Structures
Cambridge University Press (CUP) - Tập 6 - Trang 18-25 - 1957
AbstractAttention is called to the value to be derived from application of
diffraction analysis of modern grade to specific, familiar, approximately known
crystallizations. Features consequent to ordering of coordination polyhedra of
differing sizes in layer structures are discussed, and their bearing upon
relations between lattice parameters and chemical compositions are outlined.
Flow Properties of Dilute Montmorillonite Dispersions
Cambridge University Press (CUP) - - 1957
AbstractA viacomotrio study of dilute montnioritlonite dispersions, using lor
tho most part dilution-typo capillary viscometers supplemented by a falling-head
capillary viscometer, has involved a determination of the concentration
dependence of viscosity of such dispersions in both distilled and
electrolyte-containing water. The resulta of the study have been interpreted in
terms of a theory of in...
Oxidizing Power of the Surface of Attapulgite Clay
Cambridge University Press (CUP) - - 1963
AbstractIt has been demonstrated that ferric iron is the principal source of the
oxidizing action of the surface of attapulgite clay. The extent of oxidizing
action in a given time (the oxidizing power) has been determined as a function
of the temperature of calcination of the clay in the range 100–900°C.The
oxidizing power was measured with TiCl3 in aqueous acid medium by direct
titration of the ...
Altered Siliceous Volcanics as a Source of Refractory Clay
Cambridge University Press (CUP) - - 1956
AbstractIn the intermountain states, a region deficient in kaolinite and alumina
clays, there is an increasing demand for refractory clay. In this arid region
residual kaolins are not developed in quantity from feldspathic intrusives.
Glassy, siliceous extrusives alter commonly to mont-morillonite of the
montmorillonite-beidellite series. Zeolites, principally analcime and
heu-landite, often are a...
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