Water trapped under the pavement softens the subbase and subgrade, making the road more vulnerable to traffic loads.
22.
A " subbase " of the Zariski topology is the collection of complements of irreducible algebraic sets.
23.
That is, if is a subbase for, a function is continuous iff is open in for each in.
24.
Rigid pavements are generally constructed in three layers-a prepared subgrade, base or subbase, and a concrete slab.
25.
For " any " subcollection of the power set, there is a unique topology having as a subbase.
26.
One nice fact about subbases is that continuity of a function need only be checked on a subbase of the range.
27.
The subbase is generally constructed from local aggregate material, while the top of the subgrade is often stabilized with cement or lime.
28.
The converse fails, since generally the cylinder sets will only form a subbase ( and not a base ) for the initial topology.
29.
Frequently, overloading happens because the base or subbase inadequately support the surface layer and subsequently cannot handle loads that it would normally endure.
30.
Sealing small cracks with bituminous crack sealer prevents water from enlarging cracks through frost weathering, or percolating down to the subbase and softening it.
