Assessment the polishing of local aggregates by means of skid resistance for surface pavement layer
العناوين الأخرى
تقييم صقل الركام المحلي بواسطة مقاومة الانزلاق لطبقة التبليط السطحية
المؤلف
المصدر
Journal of Engineering and Sustainable Development
العدد
المجلد 20، العدد 6 (30 نوفمبر/تشرين الثاني 2016)، ص ص. 68-80، 13ص.
الناشر
الجامعة المستنصرية كلية الهندسة
تاريخ النشر
2016-11-30
دولة النشر
العراق
عدد الصفحات
13
التخصصات الرئيسية
العلوم الهندسية والتكنولوجية (متداخلة التخصصات)
الملخص EN
: During the entire life cycle of a pavement, highway agencies are expected to monitor and preserve an appropriate surface roughness (i.e.
texture) to facilitate friction between pavement surface and vehicle tires.
The resistance of pavement surface to sliding and skidding of the traveling vehicles is measured by skid resistance.
There is a prime importance to provide skid resistance to preserve adequate surface roughness for pavement and prove resistance to polishing due to the traffic effects.
The skidding resistance of an asphalt pavement is essentially depends on aggregate properties in the surface wearing course.
Depending on the shape, size, and gradation of aggregate in the paving mixture of the wearing surface, the skid resistance performance of the road surface varies differently with environmental and traffic operating conditions.
Field experience in Iraq has indicated that wearing surface with different aggregates differed in their skid resistance at different stages of their service life.
This research reports the findings of an experimental study for investigating the effects of aggregate properties on skidding resistance for three common types of local aggregates used in Baghdad for road construction, they are brought from Al-Nebae quarry in Salahdin governorate, Al-Sedoor quarry in Diala governorate and Chlatt quarry in Misan governorate.
However, this study was designed to characterize the polishing properties of the three types of aggregates in an attempt to explain their different skid resistance performance.
To achieve the objective of this research, Accelerated Polishing Machine is used (which it has been operated by the researcher as the first test conducted in Iraq) to produce aggregates samples of polished stone used in roads surface and to simulate actual roads conditions, and British pendulum test was employed for the study for determining the Polished Stone Value (PSV) for tested samples.
The tests are conducted at temperatures of 60±1° C (140±2° F), 40 ±1° C (104±2° F) and 20±1° C (68±2° F) and at a rotation wheel speed of 320 rpm and applied loading of 400 N.
The dry and wet conditions are employed for Pendulum test, with three traffic volume (in terms of time of testing) (1 hr, 2 hr, and 3 hr) for a nominal total of 54 tests are performed.
Finally, a set of recommendations are presented for promoting the skidding resistance performance of Iraqi pavements including changes and adding to current construction quality assurance procedures
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Qasim, Zaynab Ibrahim. 2016. Assessment the polishing of local aggregates by means of skid resistance for surface pavement layer. Journal of Engineering and Sustainable Development،Vol. 20, no. 6, pp.68-80.
https://search.emarefa.net/detail/BIM-848580
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Qasim, Zaynab Ibrahim. Assessment the polishing of local aggregates by means of skid resistance for surface pavement layer. Journal of Engineering and Sustainable Development Vol. 20, no. 6 (Nov. 2016), pp.68-80.
https://search.emarefa.net/detail/BIM-848580
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Qasim, Zaynab Ibrahim. Assessment the polishing of local aggregates by means of skid resistance for surface pavement layer. Journal of Engineering and Sustainable Development. 2016. Vol. 20, no. 6, pp.68-80.
https://search.emarefa.net/detail/BIM-848580
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
رقم السجل
BIM-848580
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر