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Register a new userThe Effect of Abrasion on Carbonate Rocks
دراسة مقاومة الصخور الكربوناتية للاهتراء
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ماهر سجيع نصور( باحث )
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يهدف هذا البحث إلى دراسة مقاومة الصخور الكربوناتية للاهتراء و ذلك لعينات من مقالع صخرية مختلفة في الجمهورية العربية السورية و ذلك بواسطة اختبار الاهتراء (لوس أنجلوس ), و مدى ارتباط هذا الاختبار ببعض الخصائص الفيزيائية المدروسة للصخور الكربوناتية. نتيجة البحث: - مقاومة الاهتراء لعينات الصخور المدروسة من المقالع المختلفة تتراوح (18-41% ). - هناك ارتباط لبعض الخصائص الفيزيائية المدروسة لعينات الصخر باختبار الاهتراء (لوس أنجلوس ).
The aim of this research to study the Abrasion on carbonate rocks which comes from specific mines in Syria, and possibility finding correlation between Abrasion test(L.A) and some physical properties of carbonate rocks . Results or Finding: - Most of studied carbonate rocks are resistance(18-41%). - There is correlations between some physical properties of carbonate rocks and Abrasion test(L.A) .
References used
CUELHO,E.M.;OBERT,K. Comparative Analysis of Coarse Surfacing Aggregate Using Micro-Devel ,L.A. Abrasion and Sodium Sulfate Soundness Tests. Montana State University, Bozeman, 2007, 47p
(FOWLER, D.W. ; ALLEN,J.J; LANGE,A. The Prediction of Coarse Aggregate Performance by Micro- Devel and Other Aggregate Test. The University of Texas at Austin ,International Center for Aggregate, Research ICAR Report 507-1F,(2006
(John.P. Latham and Alan B.Pool .Abrasion testing and armourstone degradation. Coastal Engineering; vol 12 , September 1988,p(233-255
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Basalt is classified as a isotropic rock in according to its mechanical
properties. But gypsum is considered isotropic transverse rock . coming
the mechanical parameters values joins practice direction of parameters
.
By using a nondestructive me
thod such as the ultrasonic test which
depends on understanding the effectual of mechanical properties upon
speed of ultrasonics inside rocks , one can indirectly predict the
mentioned parameters
Tests were completed within 35 gypsum and 11 basalt rocks specimens
which collected by completions under the direction of General
Organization for Land Development ( Directorate of Geological
Investigation).
The aim of this study is to use the measured values of the magnetic
susceptibility in the classification of the basaltic rocks and their different
differentiation degrees as an additional discrimination factor to the
geochemical analyses, which we
re applied on the basalts of southern and southeastern
Syria. So the magnetic susceptibility of ٢٠٤ specimens sampled from all
the ٧ basaltic groups in Qasr Shbeeka area in addition to ٦٢ specimens
sampled from three groups from outside the studied area were measured. This
led to the determination of all the magnetic susceptibility ranges, their mean
values and their standard deviation of the basaltic rocks in the area.
In this research the development of the conditions of the determine copper duo by spectrophotometric method that based on the formation of a complex with Alizarin Red S was accamplished with the presence of fallow acid when the wavelength(220 nm), th
at by studying the effect of PH and the impact if the interference caused by the presence of some metal ions (nickel ions, chromiun ions, 2 inc ions, calciom ions, and triple iron ions) which make it difficult for the progress of determine copper by Alizarin Red S. the best PH value for this process is (pH = 9.5) and the relationship of Lambert Bear realized within the range 0.2 – 125 mg/ml the detection limit was 0.OO1µg/ml.
Palaeomagnetism and some magnetic and physical properties (magnetic
susceptibility, intensity of remanent magnetisation, ac current electrical
conductivity and density) of many basaltic samples were studied.
Syria
سورية
Density
حُمّص
الكثافة
المتأثرية المغنطيسية
المغنطيسية المتبقية الأولية
Magnetic susceptibility
Magnetostratigraphy
Homs
ac current electrical conductivity
الناقلية الكهربائية بالتيار المتناوب
الستراتغرافيا المغنطيسية
زمن القطبية
كسوة
سويداء
NRM= Natural Remanent Magnetisation
polarity chron
Kisweh
Swedah
المزيد..
The importance of this scientific research stems from the increasing demand for
building materials, especially the materials involved in concrete industry. The attention
was directed towards finding alternative locations for primary oresin addition
to the
process of reconstructing old mines as the continues inequitable taking of these materials
will eventually result in wasting those resources losing them before using them in an
economical suitable way. We have defined the hope positions in the areas of Banias and
Tartous. We can say that deterioration of volcanic products in those areaswas a direct
result of suitable climatic circumstances which were predominant (weathering process,
deterioration, physical erosion, and chemical like wetness, wind, rain, temperature, and
surface water streaming). The tectonic which attacked those formations later served to
boost the weathering and erosion degree so that it became more effective for the
production of some oxides such as (calcium oxide, iron oxide, aluminum oxide,
deterioration of rock components, and concentration of clay) asplain strataof clay
deterioration according to geochemical analyses conducted in this research.
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