SECTION 615 - CONCRETE BARRIER
615.01 Description. This work consists of furnishing all materials and constructing
concrete barrier in accordance with these specifications and the details shown on the plans and in reasonably close conformity with the dimensions, lines, grades, and elevations shown on the plans or established by the Engineer.
615.02 Materials. Materials used in this work shall be in accordance with the applicable
requirements of Section 700 or as shown on the plans. Unless otherwise specified, concrete for barrier, cast-in-place or slipform placement, shall be Class "B" meeting the requirements of Section 804. Concrete for precast barrier using the dry-ca st plant manufacturing process shall produce 5,000 psi compressive strength in 28 days.
615.03 Construction Requirements.
615.03.1 General. Cast-in-place barrier shall be constructed in accordance with the
requirements of Subsection 813.03.2.2 and applicable requirements of Section 804. Barrier constructed by slipform placement sh all be constructed in accordance with the requirements of Subsection 615.03.2 and applicable requirements of Section 804. Precast barrier shall be constructed in accordance with applicable requirements of Section 804 and the requirements of Subsection 813.03.2.3, except concrete material requirements will be as set forth in Subsection 615.02. Precast concrete barriers must meet the requirements of NCHRP Report 350 or MASH. Joints shall be as shown on the plans, and the surface finish shall be Class 2, rubbed or spray finish, in accordance with the requirements of Subsection 804.03.19.3.
615.03.2 Slipform Placement. When concrete median barri er is placed by the slipform
method, the slipform machine shall be craw ler mounted for stability and shall include automatic sensing and control equipment for controlling line and grade. Continuation of placement by the slipform method shall be contingent upon quality workmanship and good configuration, lines and grades with very little hand finishing required. The Contractor shall be fully responsible for placement at no additional cost to the State, any and all barrier not conforming to the requirements of the contract. To improve placement characteristics, the State Materials Engineer may make minor modifications in the concrete mix design for this type of placement.
615.04 Method of Measurement. Concrete barrier of the type specified will be measured
by the linear foot out to out of the barrier. This measurement shall include all elements of the barrier and its foundation.
Concrete Barrier in other states
Get an email when 615 changes
Mississippi revises spec sections through supplementals and new editions. We check this one every week and email you the day it changes. Free, no account.