岳把我用嘴含进满足我视频,国产精品av,日产乱码一二三区别免费必看,欧美亚洲自偷自拍 在线

Roller compaction is the laboratory method that most closely simulates on-site compaction. The machine can be configured to operate with a single wheel or twin wheels depending on the mould size. The wheels track the surface in overlapping wheel-paths using sequences specified in EN 12697-33 or custom sequences designed by the user. The base of the mould is incrementally raised by a precision jacking system and the system is tracked to keep it level with the top of the mould. Compacted slabs can be from 50 to 150mm thick. 500 x 180mm slabs are usually wheel tracked in the Cooper Technology Large Wheel Tracker, whilst 600 x 400mm slabs are normally cut to produce trapezoidal or prismatic specimens for fatigue, modulus tests and Duriez test.

Key Features

• Compacts uniform slabs of asphaltic paving mixture

• Computer control for repeatable standard EN 12697-33 compaction patterns

• Option for customer defined compaction patterns to be programmed and saved

• Single or dual wheeled configuration

• Mould size (length x width) 500 x 180mm or 600 x 400mm

• Compacted slabs can be used in the large pneumatic tyred wheel tracker or cut into beams for bending tests

• Safety enclosure with optical laser sensors for user safety, easy access and excellent manoeuvrability

• Issued with UKAS certification of calibration

Key Uses

Preparation of homogeneous asphalt slabs:

• Wheel tracking tests

• Sawing into beams for bending tests

• Coring to produce specimens for indirect tensile and axial tests

Software

• User friendly, intuitive and reliable Windows? software developed using LabVIEW?

• Software is designed to perform EN 12697-33 (Large Scale Device)

• The user interface can be translated into the user’s preferred language – please enquire

• Real time display of current compaction height and diagnostic indicators

• EN compaction routines are included as standard

• User can design and save custom compaction routines