Differentiate between corrective and preventive rehabilitation techniques. Cite three examples of surface treatments in each category. What is the best preventive maintenance technique for subsurface maintenance?
What will be an ideal response?
Corrective rehabilitation involves the permanent or temporary repair of
deficiencies on an as-needed basis. Techniques include patching, crack filling, joint
sealing, and seal coat (with aggregate). Preventive rehabilitation involves surface
applications of either structural or non-structural improvements intended to keep
the quality of the pavement above a predetermined level. Techniques include fog
seal asphalt rejuvenators, joint sealing, and seal coat (with aggregate). The best
preventative technique for subsurface maintenance is proper and functional
drainage.
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A. Poured-in-place insulation B. Foam-in-place insulation C. Expanded polystyrene D. A molded insert
The tissue culture method of plant propagation is also called _____
A) sexual propagation B) rooting hormone C) lenticels culture D) meristem culture
What is a blood feather?
What will be an ideal response?
Work teams are developed in organizations to increase management's responsibility in task
performance.
Indicate whether the statement is true or false.