Environmental Engineering Reference
In-Depth Information
Ulusay 2003, Ulusay et al., 2006). These studies
mainly deal with the deterioration and durability
of the tuffs. other few studies are performed on
material geology and investigation of usability of
these rocks as building stone (erdogan, 1986 and
1989, korkanç, 2007, Temur et al., 2007).
3.2 Some laboratory experiments and their
results on the building materials of Kayseri
province quarries within Mount Erciyes
according to the MiGeM (Turkish Republic
Ministry of energy and natural Resources-
General Diractorate of Mining affairs) records
there are one hundred and nine quarries in kayseri
province at present. Forty one of them are pumice
stone quarries. Total rock materials mined from
the current quarries amounts to 772,957 tones in
the year 2009. 279,523 tones of these products
composes of andesite, 28,115 tones of basalt,
13,488 tones ignimbrite, 389116 tones pumice and
62,715 tones tuff respectively.
Volcanic rocks to be tested in our laboratory are
taken from six different quarries in kayseri province.
cylindrical nX size specimens are tested for some
physical and mechanical properties of them. Tests
were carried out in accordance with procedures laid
out in the isRM (1985) suggested Methods and
Ts 699. The results of experiments performed are
summarized in Table 1. in this table the rock kate-
gories are as follows: Rock type i: pumice; Rock
type ii: andesite; Rock type iii: beige tuff; Rock type
iV: basalt; Rock type V: ignimbrite; Rock type Vi:
red-tuff. The geotechnical properties summarized
consist of dry unit weight (g d ) in kn/m 3 , saturated
unit weight (g sat ) in kn/m 3 , porosity (n) in%, P-wave
velocity-dry and saturated in m/s, coefficient of ther-
mal conductivity (k) in W/mk, and uniaxial com-
pressive strength (Ucs) in MPa.
The parameters given in Table 1 are used to
describe the relationship as given in Figures 8, 9,
10, 11, 12, 13. The Figure 5 depicts the dry and
saturated unit weight of different rock types. as
seen in this figure highest value of unit weight is
given by basalts (iV) and lowest value by red-tuffs
(Vi). The Figure 6 gives the P-wave velocities of
the sample rocks. as seen in this figure basalts
(iV) despicts the highest P-wave value, whereby the
pumice (i) and red tuffs (Vi) the lowest values. The
Figure 7 shows the thermal conductivity coeffi-
cient values as W/mk. These values are optained in
our laboratory steady state test apparatus designed
and produced in cumhuriyet University. The tests
are carried out in 100°c (373 k) temperature range
of this apparatus. as seen in this figure the thermal
conductivity coefficient of these rocks vary between
0.630 and 0.924 W/mk. The Figures 8, 9, 10, 11, 12
and 13 represent the relationships between P-wave
Figure 4. stratigraphic column of Mount erciyes stra-
tovolcano. (Şen et all. 2003) ages from: *** innocenti et al.,
1975; ercan et al., 1994; notsu et al., 1995. italik numbers
refer to the stratigraphic position of the products.
(Migem 2010). one hundred and nine quarries
of them lies in kayseri province and the rocks of
their quarries originated Mt. erciyes resources. in
this study the information and their lacations in
the cappadocia region compiled. Following this
activity geotechnical properties of the rocks are
summarized.
3.1 Geotechnical properties of Mt. Erciyes rocks
apart from geological investigation of central
anadolian volcanic province and studies on the
evaluation of Mt. erciyes, several engineering geo-
logical and conservation studies on cappadocian
tuffs and Mt. erciyes materials have been carried
out (erguvanlı, 1977, Topal et al., 1997, aydan &
 
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