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Deanship of Scientific Research
Document Details
Document Type
:
Project
Document Title
:
The reality of decision-making in school management: a field study on public schools for boys in the city of Medina.
واقع اتخاذ القرار في الإدارة المدرسية : دراسة ميدانية على المدارس الحكومية للبنين بالمدينة المنورة.
Document Language
:
Arabic
Abstract
:
Gives the classification of soil engineers and fully visible to the engineering properties of soil, using simple laboratory tests. The soil classification systems developed in the United States of America and Western Europe, where technical problems are concentrated in the ground soil silt and clay - was never a mention to the classification of sand into groups as to other types of soil. In Saudi Arabia, where there are huge amounts of sand up to more than 75% of the soil, it will inevitably use of sand in construction work in most of the time. Therefore, the classification of sand into groups of a mother (A-3) is a pressing need for him by the civil engineers not only Saudi Arabia but in other areas where frequent presence sand. Address this research to divide the group sand (A-3) designated by the American Board of U.S. Roads and transport personnel AASHTO groups as sources of sand, three, namely: (1) Aeolian or sand Alsava, which will be denoted by A-3-a and (2 ) or sedimentary sand valleys, which will be denoted Code A-3-b and (3) nautical or beach sand, which will has the symbol A-3-c each of these groups are characterized by geometric properties of normal and special, which can be identified by simple tests and specific. I have found from the results of this study that the sedimentary sand (sand Alodria) A-3-b is characterized by the properties of natural and geometric quality of the other two. And is expected to give the results of this search and saving in the cost of expanding testing at each site installation work, in addition to general knowledge and previous did not mention it before.
Publishing Year
:
1415 AH
1995 AD
Sponsor Name
:
kau
Sponsorship Year
:
1415 AH
1995 AD
Added Date
:
Wednesday, April 30, 2008
Researchers
Researcher Name (Arabic)
Researcher Name (English)
Researcher Type
Dr Grade
Email
أحمد علي غنيم
ghoneim, ahmed ali
Investigator
Doctorate
Files
File Name
Type
Description
30169.docx
docx
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