446-1 Description.
Construct edgedrain ( draincrete), and edgedrain outlet pipe as shown in the Plans and Standard Plans, Index 446-001. Use any one of the types of pipe listed in 446 -2, unless a particular type is specifically required within the Contract Documents. Use only perforated pipe, and do not use open joints.
446-2 Materials.
Meet the following requirements: Portland Cement Concrete – Class NS* .............Section 347 Coarse Aggregate ................................ ................ Section 901 Portland Cement ................................ .................. Section 921 Water ................................ ................................ ...Section 923 Polyvinyl -Chloride Pipe ................................ ......Section 948 Polyethylene Pipe ................................ ................ Section 948 Filter Fabric** ................................ ..................... Section 985 *For draincrete, the concrete requirements of Section 347 are modified as follows: Use Type I or II portland cement (no supplementary cementitious materials permitted). Composition: Grade of coarse aggregate (stone) .... #57, #67 or #89 Maximum Water/Cement ratio ........................... 0.38 Minimum cement factor ...... 385 lb/yd3 of Draincrete Maximum Slump Range ................... Not Applicable Fine Aggregate ................................ .................. None Admixtures ................................ ........................ None Do not use materials which contain hardened lumps, crusts, or frozen matter, or are contaminated with dissimilar material. **Use products listed on the Department’s Approved Products List (APL).
446-3 Control of Quality.
446-3.1 Concrete Design Mix: Submit the proposed design mix prior to production, on
the Concrete Mix Design form, for the Engineer’s approval. Use only draincrete design mixes having prior approval of the Engineer. Do not change the design mix component materials except as per 446 -3.2. The Department will verify the proposed mix design and may witness the trial batching. Meet the unit weight requirements as determined in accordance with FM 5-530, and the drain rate in accordance with FM 5-570. Also, provide one of the following with the design mix submittal:
446-3.2 Batch Adjustment - Materials: Meet the theoretical yield requirements of the
approved mix design. Inform the Engineer of any adjustments to the approved mix design. Note any batch adjustments and record the actual quantities incorporated into the mix, on the concrete Delivery Ticket/Certification form.
446-3.3 Delivery Certification: Furnish to the Engineer a complete Delivery
Ticket/Certification form with each batch of draincrete prior to unloading at the site.
446-4 Construction.
446-4.1 Excavating Trench: Meet the requirements of Section 440.
446-4.2 Laying Pipe: Meet the requirements of Section 440.
446-4.3 Placement of Draincrete: Obtain the Engineer ’s approval before placing the
draincrete. Deliver the draincrete to the site of placem ent in a freshly mixed unhardened state. Deposit draincrete in the form or trench by a method approved by the Engineer, to ensure uniform distribution. Do not use vibrators. Avoid displacement or damage to the pipe or filter fabric.
446-5 Sampling and Test ing.
446-5.1 General: The Engineer will take random samples of the draincrete at the point of
placement to determine the drain rate in accordance with FM 5-570 to determine the drain rate. A minimum of two test cylinders will be made for each LOT. A LOT r epresents one day’s production of each mix design.
446-5.2 Acceptance of Hardened Draincrete: Meet the minimum drain rate of
6 oz/second. Draincrete not meeting the drain rate requirement will be rejected. Remove, and replace all rejected draincrete at no cost to the Department.
446-6 Method of Measurement.
The quantity of edgedrain ( draincrete) to be paid for will be the length, in feet, measured in place, along the centerline and gradient of the edgedrain ( draincrete), completed and accepted. The quantity of edgedrain outlet pipe to be paid for will be the length, in feet, measured in place along the centerline and gradient of the outlet pipe, completed and accepted.
446-7 Basis of Payment.
Price and payment will be full compensation for all work, including all materials, excavation, equipment, labor and incidentals necessary to complete the work. Payment will be made under: Item No. 446 - 1- Edgedrain (Draincrete) - per foot. Item No. 446 - 71- Edgedrain Outlet Pipe - per foot. FY 2023-24 Return to Table of Contents SECTION 449 PRECAST CONCRETE DRAINAGE PRODUCTS
449-1 Description.
Precast concrete drainage products hereinafter called products, may include but are not limited to, round concrete pipe, elliptical concrete pipe, underdrains, manholes, endwalls, inlets, junction boxes, three -sided precast concrete culverts, and precast concrete box culverts. Ensure that all precast drainage products are designed and manufactured in accordance with the requirements of the Contract Documents. Obtain precast concrete pipes, box culverts, and drainage structures from a plant that is currently on the Department’s Production Facility Listing. Producers seeking inclusion on the list shall meet the requirements of Section 105. At the beginning of eac h project, submit a notarized certification statement to the Engineer from a company designated representative certifying that the plant will manufacture the products in accordance with the requirements set forth in the Contract Documents and Producer Quality Control (QC) Plan. The Quality Control Manager’s stamp on each product indicates certification that the product was fabricated in conformance with the Producer QC Plan, the Contract, and this Section. Ensure that each shipment of precast concrete produ cts to the project site is accompanied with a QC signed or stamped delivery ticket providing the description and the list of the products. When the Producer Quality Control Program is suspended by the Department, accept responsibility of either obtaining products from a plant with an approved Quality Control Program, or await re -approval of the plant. The Engineer will not allow changes in Contract Time or completion dates as a result of the plant’s loss of qualification. Accept responsibility for all delay costs or other costs associated with the loss of the plant’s qualification.
449-2 Materials.
Ensure that the materials used for the construction of the precast drainage products have a certification statement from the source, showing that they meet the applicable requirements of the Specifications with the following modifications: Reinforcing Bar ................................ ................... Section 415 Coarse Aggregate* ................................ ..............Section 901 Fine Aggregate* ................................ .................. Section 902 Portland Cement and blended cement ................. Section 921 Water ................................ ................................ ...Section 923 Admixtures ................................ .......................... Section 924 Supplementary Cementitious Materials ..............Section 929 Gasket Material ................................ ................... Section 942 Blended Hydraulic Cements ...................... AASHTO M 240 Welded Wire Reinforcement .............................. Section 931 Wire for Site Cage Machines .............................. Section 931 Liner Repair Systems ................................ ..........Section 948 *For concrete pipes the grada tion requirements of concrete aggregates as set forth in Sections 901 and 902 are not applicable. FY 2023-24 Return to Table of Contents