Section 806 Section 806
806.03.5 2--Railing. The bridge railing shall be installe d after all other work on the bridge
has been completed. The material used shall meet the dimensions and requirements specified on the plans and the railing shall be constructed in conformity with the details indicated and to the lines and grades established.
806.04 Me thod of Measurement. Precast concrete slab units, either interior or curb
units, precast barrier rail units and precast concrete caps either intermediate or end bent with winged abutment wall of the size and ty pe specified will be measured by the unit per each. Winged abutment walls, grout, tie rods, nuts, washers, bearing pads and other appurtenances will not be meas ured for separate payment.
806.05 Basis of Payment. Precast concrete slab units, precast barrier rail units and
precast concrete caps, measured as prescribed above, will be paid for at the contract unit price per each for the specified types and sizes. This price shall be full compensation for furnishing all materials, hauling and erectin g, equipment, tools, labor and incidentals necessary to complete the work. Payment will be made under: 806-A: ___’ Precast Concrete Slab Units, ___’ Interior - per each 806-B: ___’ Precast Concrete Slab Units, Curb - per each 806-C: ___’ Precast Barrier Rail Units - per each 806-D: ___’ Precast Concrete Ca ps, Intermediate Unit - per each 806-E: ___’ Precast Concrete Ca ps, End Unit with Wall - per each SECTION 808 - JOINT REPAIR
808.01 Description. All joints requiring repair sha ll be reconstructed with specified
materials according to details shown on the pl ans and instructions contained herein. All other requirements shall be in accordance with the applicable provisions of Sections 501 and 804 of the Standard Specifications.
808.02 Materials.
808.02.1 General. When materials from the Depart ment's current list of approved
materials are to be used, the Contractor sha ll submit documentation to the Engineer that the epoxy and all components meet the requirements of the contract. If the materials proposed for use are not from the Department's current list of approved materials, a sample of the epoxy and all components required for the epoxy mortar mix shall be submitted to the Engineer for evaluation and approval at least 30 calendar days prior to placement. Subsequent approval of each new lot may be by certification. The manufacturer must certify that the new lot of material is the same composition as that originally approved by the Department and that the material has not been changed or altered in any way. A representative of the epoxy manufacturer must be present for sufficient time to assure that the Contractor is pr operly schooled in the use of the epoxy materials.
808.02.2 Epoxy Resin. The material shall meet the requirements of ASTM C 881, Type
I, Grade 2, Class C.
808.02.3 Silica Sand. The material shall be bagged general purpose blast cleaning sand.
808.02.4 Epoxy Mortar Mix. The mortar mix shall consist of one part liquid epoxy to
3.5 parts clean dry sand by volume.
808.02.5 Mixing and Curing. Mixing of all epoxy materi als shall be accomplished with
a mechanical mixer. A trial batch of mortar, approximately one c ubic foot, will be mixed and used for joint repair. From this batch, the pot life and subs equent amount of material to be mixed will be determined. Workers should wear rubber gloves and any other protective measures necessary to minimize contact with skin, eyes, etc. The curing time shall be regulate d so the repaired area may be open to traffic in four hours from time of placement. To meet the above requirement, it may be necessary to store materials in heated enclosures and provide temporary cover and heat to the repaired area.
808.03 Construction Details. All repair areas are to be thoroughly cleaned by chipping
and sandblasting to sound concrete. To form joints, insert styrofoam or other ap proved forming materials to desired grade. Forms are to be greased lightly to assist in removal. The mortar mix shall be prepared and placed during periods of warm weather if at all possible. The prepared surface shall be lightly primed with neat epoxy prior to placement of the mortar mix. Placement of the mortar mix shall start at the earliest practical time and may continue until approximately four and one-half hours prior to opening the section of roadway or bridge to traffic. The mortar mix shall be finished to the line of the existing joint an d to the grade of the adjacent pavement or bridge deck. After final finish of the mortar mix, the su rface shall be sprinkled with sand to provide texture. Excess sand to be hand broomed from surface after mortar has set. Acetone alcohol may be used to clean and lubricate trowels to assi st with the surface finishing.
808.04 Method of Measurement. When specified for paymen t, joint repair, measured
as prescribed abov e, will be measured by the linear fo ot for joint preparation and by the gallon for the mortar mix. When the mortar mix consists of epoxy and sand, the volume of measurement for the mortar mix will be de termined from the summation of the volumes of the epoxy components and the volume of sand will not be measured for payment.
808.05 Basis of Payment. The accepted quantities of joint repair will be paid for at the
contract unit price per linear foot for joint pr eparation and per gallon for the mortar mix, which price shall be full compensation for fu rnishing and placing all materials including sand and forming materials and for furnishing all labor, tools, equipment, and incidentals necessary to complete the work. No payment will be made for the sand used in the epoxy mortar mix. The price bid for each item of work shall include the cost of continuous maintenance of traffic and protective services as required by the Department's Traffic Control Plan. This shall include all required individual traffic control devices. Payment will be made under: 808-A: Joint Preparation - per linear foot 808-B: Kind Mortar Mix - per gallon SECTION 809 - RETAINING WALL SYSTEMS
809.01 Description. This work shall consist of designing and installing one of the
retaining wall systems described herein in accordance with th e lines, grades and dimensions shown in the plans and specifications.
809.01.1 General. Retaining wall systems shall comply with all material, fabrication and
construction requirements found in the Standard Specifications and the plans. The submitted retaining wall system shall be as sh own in the plans or consist of one of the following three types: Conve ntional Cantilevered Gravity Wa ll, Mechanically Stabilized Earth Wall (MSEW), or Precast Gravity Wall. All costs asso ciated with the design and construction of the wall system selected by the Contractor shall be included in the bid price for the wall. The Contractor may select differe nt wall types for different sites, as provided for on the plans. In the event a MSEW System is chosen, the wall system supplier shall have submitted their system to the Highway Innovative Technology Evaluation Center (HITEC) for review and shall have had a formal evaluation completed for all components of the wall system. The wall system is considered to be the wall facing and the associated geosynthetic or steel soil reinforcement. Three copies of HITEC’s fi nal evaluation report for the chosen MSEW System shall be included with the initial design submittal. The time required for preparation and review of wall shop drawings shall be charged to the allowable contract time. No additional co mpensation will be made for any additional