(a) Bituminous Aggregate Surfacing. When bituminous aggregate surfaces do not meet the specifications set forth in this chapter, such material, including both surface and base courses and bond coats and, where applicable, base and sub-base materials, shall be removed and replaced with material meeting such specifications. All repair work shall be at the contractor's expense.
(b) Concrete Work. When any section of the concrete work fails to meet the specifications set forth in this chapter, such concrete shall be removed and replaced with material meeting such specifications. All such work shall be at the contractor's expense.