The Pavements

PAVEMENTS

Pavement engineering is a branch of civil engineering that uses engineering techniques to design and maintain flexible (asphalt) and rigid (concrete) pavements. This includes streets and highways and involves knowledge of soils, hydraulics, and material properties. Pavement engineering involves new construction as well as rehabilitation and maintenance of existing pavements. Maintenance often involves using engineering judgment to make maintenance repairs with the highest long-term benefit and lowest cost. Pavement engineer is the process of designing paved surfaces to meet the needs of traffic, pedestrians, and the environment. Some pavement engineer professionals may work to help to develop and test new asphalt and concrete mixtures.

CONCRETE PAVEMENTS WITHOUT SUBBASES FOR LIGHT TRAFFIC

The necessity of a sub-base (a layer of granular material placed on a prepared subgrade) depends on the frequency of heavy truck loadings.

This pumping is the forceful ejection of a mixture of soil and water from under slab edges and joint It is caused by frequent slab deflections under heavy wheel loads.

FAST FULL-DEPTH PAVEMENT REPAIR

Requires removing and replacing at least a portion of a slap to the bottom of concrete to can restore areas of deterioration and extend the pavement service life.

PROPER USE OF ISOLATION AND EXPANSION JOINTS IN CONCRETE PAVEMENTS

The joints are only necessary in four cases:

·       When the pavement is divided into long panels.

·       Constructed in temperatures below 40°F.

·       When the contraction are allowed to be infiltrated.

·       When the pavement is constructed with high expansion materials