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- Base_course abstract "The base course or basecourse in pavements is a layer of material in an asphalt roadway that is located directly under the surface layer.If there is a subbase course, the base course is constructed directly above this layer. Otherwise, it is built directly on top of the subgrade. Typical base course thickness ranges from 4 to 6 inches and is governed by underlying layer properties. Generally consisting of a specific type of construction aggregate, it is placed by means of attentive spreading and compacting to a minimum of 95% relative compaction, thus providing the stable foundation needed to support either additional layers of aggregates or the placement of an asphalt concrete wearing course which is applied directly on top of the base course.Aggregate Base (AB) is typically made of a recipe of mixing different sizes of crushed rock together forming the Aggregate which has certain desirable properties. 3/4 inch Aggregate Base, Class 2, is used in roadways and is an aggregate made of a specific recipe of different sizes and quality of rock inclusive of 3⁄4 in (19.05 mm) to fine dust. An aggregate is normally made from newly quarried rock, or it is sometimes allowed to be made from recycled asphalt concrete and/or Portland cement concrete.".
- Base_course thumbnail MortarlessPavement.jpg?width=300.
- Base_course wikiPageID "891708".
- Base_course wikiPageRevisionID "571891817".
- Base_course hasPhotoCollection Base_course.
- Base_course subject Category:Pavement_engineering.
- Base_course subject Category:Road_infrastructure.
- Base_course subject Category:Road_transport.
- Base_course comment "The base course or basecourse in pavements is a layer of material in an asphalt roadway that is located directly under the surface layer.If there is a subbase course, the base course is constructed directly above this layer. Otherwise, it is built directly on top of the subgrade. Typical base course thickness ranges from 4 to 6 inches and is governed by underlying layer properties.".
- Base_course label "Base course".
- Base_course label "Tragschicht".
- Base_course label "طبقة الأساس (طرق)".
- Base_course sameAs Tragschicht.
- Base_course sameAs m.03m8hr.
- Base_course sameAs Q2448067.
- Base_course sameAs Q2448067.
- Base_course wasDerivedFrom Base_course?oldid=571891817.
- Base_course depiction MortarlessPavement.jpg.
- Base_course isPrimaryTopicOf Base_course.