Subbase definition

Subbase means the supporting soil layers beneath a liner.
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Subbase means the layer or layers of specified or selected material of designed thickness placed on a subgrade to support a base course.‌
Sample 1
Subbase means a layer of specified material of required thickness between a base and the basement material. (§ 1, Ord. 87-662, eff. June 4, 1987)
Sample 1

Examples of Subbase in a sentence

  • Subbase Course: Aggregate layer placed between the subgrade and base course for hot-mix asphalt pavement, or aggregate layer placed between the subgrade and a cement concrete pavement or a cement concrete or hot-mix asphalt walk.

  • Up to 100 percent of any combination of processed:5.1. Asphalt concrete5.2. Portland cement concrete5.3. Lean concrete base5.4. Cement treated baseThe first paragraph of Section 25-1.02B, "Class 4 Aggregate Subbase," of the Standard Specifications is amended to read:• Aggregate must be clean and free from organic matter and other deleterious substances.

  • Subbase Material: Naturally or artificially graded mixture of natural or crushed gravel, crushed stone, and natural or crushed sand; ASTM D 2940; with at least 90 percent passing a 1-1/2-inch sieve and not more than 12 percent passing a No. 200 sieve.

  • Subbase Course: Course placed between the subgrade and base course for hot-mix asphalt pavement, or course placed between the subgrade and a cement concrete pavement or a cement concrete or hot-mix asphalt walk.

  • SECTION 12 – NATURAL MATERIAL SUBBASE AND BASE 1209 MEASUREMENT AND PAYMENTNotwithstanding any indications to the contrary in the Standard Specification, the Contractor will be responsible for provision and costs involved in proving and Land acquisition of suitable material sites for provision of Subbase and Base material.

  • Apply this special provision to material placed under all of the Base Aggregate Dense and Base Aggregate Open Graded bid items, except do not apply this special provision to material classified as reclaimed asphaltic pavement placed under the Base Aggregate Dense bid items.(3) Do not apply this special provision to material placed under the Aggregate Detours, Salvaged Asphaltic Pavement Base, Breaker Run, Select Crushed, Pit Run, Subbase, or Riprap bid items.

  • Do not apply this special provision to material placed under the Aggregate Detours, Salvaged Asphaltic Pavement Base, Breaker Run, Select Crushed, Pit Run, Subbase, or Riprap bid items.

  • The following Materials also shall comply with the requirements of Section 109.01: asphalt concrete; dense graded aggregate, to include aggregate base, Subbase, and select Material; fine aggregate; open graded coarse aggregate; crusher run aggregate; and Road stabilization aggregate.

  • Aggregate Subbase shall be gravel consisting of hard, durable particles which are free from vegetable matter, lumps or balls of clay, and other deleterious substances.

  • A LONGITUDINAL TRENCH – (Less than 10 degree angle with centerline of road and 15 meters (50’) minimum length), in all paved areas including curbs, sidewalks or other concrete shall be backfilled with Class 2 Aggregate Subbase (or better material), from the top of pipe bedding to a level 0.5 meters (18”) below the finished road surface.


More Definitions of Subbase

Subbase means the layer or layers of specified or selected material placed on a subgrade to support a base course.
Sample 1
Subbase means a layer of material of specified type and thickness between the subgrade and the base.
Sample 1

Related to Subbase

  • SQM means the specialist quality mark standard specified by us as at the Contract Start Date as amended by us provided that had the SQM been a Contract Document such amendments would not have been prohibited by Clause 13.1;

  • Subloop shall have the meaning set forth in Section 9.3.1.1.

  • Cathodic protection tester means a person who can demonstrate an understanding of the principles and measurements of all common types of cathodic protection systems as applied to buried or submerged metal piping and tank systems. At a minimum, such persons must have education and experience in soil resistivity, stray current, structure-to-soil potential, and component electrical isolation measurements of buried metal piping and tank systems.

  • Seaplane means an aeroplane capable normally of taking off from and alighting solely on water;

  • Intermodal Rail Yard means a rail facility in which cargo is transferred from drayage truck to train or vice-versa.

  • Cold Weather Alert means the notice that PJM provides to PJM Members, Transmission Owners, resource owners and operators, customers, and regulators to prepare personnel and facilities for expected extreme cold weather conditions.

  • Hourly Rate means the proposed fully loaded maximum hourly rates that include travel, per diem, fringe benefits and any overhead costs for contractor personnel, as well as subcontractor personnel if appropriate.

  • M2M Flowgate means Flowgates where constraints are jointly monitored and coordinated as defined and set forth in Schedule D to this Agreement.

  • Automotive windshield washer fluid means any liquid designed for use in a motor vehicle windshield washer system either as an antifreeze or for the purpose of cleaning, washing, or wetting the windshield. Automotive windshield washer fluid does not include fluids placed by the manufacturer in a new vehicle.

  • Pistol means any firearm with a barrel less than sixteen inches in length, or is designed to be held and fired by the use of a single hand.

  • MCERTS means the Environment Agency’s Monitoring Certification Scheme.

  • Strip means to take off RACM from any part of a facility or facility components.

  • Hot Weather Alert means the notice provided by PJM to PJM Members, Transmission Owners, resource owners and operators, customers, and regulators to prepare personnel and facilities for extreme hot and/or humid weather conditions which may cause capacity requirements and/or unit unavailability to be substantially higher than forecast are expected to persist for an extended period. IDR Transfer Agreement:

  • Birth center means a facility or institution, which is not an ambulatory surgical center or a hospital or in a hospital, in which births are planned to occur following a normal, uncomplicated, low-risk pregnancy.

  • Cathodic protection means a technique designed to prevent the corrosion of a metal surface by making that surface the cathode of an electrochemical cell. For example, protection can be accomplished with an impressed current system or a galvanic anode system.

  • aeroplane means a power-driven heavier-than-air aircraft, deriving its lift in flight chiefly from aerodynamic reactions on surfaces which remain fixed under given conditions of flight;

  • OCONUS is defined as other than the 48 contiguous states plus the District of Columbia. It is anticipated that there may be task orders for work OCONUS. The U.S. Department of State’s Bureau of Administration, Office of Allowances, publishes quarterly report indexes of living costs abroad, per-diem rate maximums, quarter’s allowances, hardship differentials, and danger pay allowances. The Department of State Standardized Regulations (DSSR) is the controlling regulations for allowances and benefits available to all U.S. Government civilians assigned to foreign areas. For task orders issued under OASIS SB, Contractor civilians assigned to foreign areas may receive the allowances and benefits in the DSSR but, shall not receive allowance and benefits in excess of those identified in the DSSR. For OCONUS task orders where costs are not specifically addressed in the DSSR, the Government will reimburse the Contractor for all reasonable, allowable, and allocable costs in accordance with FAR 31, Contract Cost Principles and Procedures, and other applicable agency specific regulatory supplements.

  • Uppermost aquifer means the geologic formation nearest the natural ground surface that is an aquifer, as well as lower aquifers that are hydraulically interconnected with this aquifer within the facility's property boundary.

  • Electric bicycle means a “class 1 electric bicycle”, a “class 2 electric bicycle”, or a “class 3 electric bicycle” as defined in this section. (ORC 4511.01(RRR))

  • Front Yard means the yard extending across the full width of the lot between the front lot line and the nearest part of any building or structure on the lot.

  • Monthly Average means the highest allowable average of “daily discharges” over a calendar month, calculated as the sum of all “daily discharges” measured during a calendar month divided by the number of “daily discharges” measured during that month. For Fecal Coliform Bacteria (FCB) or E-Coli, report the monthly average.

  • Chip means an integrated circuit embedded in the Card.

  • Asynchronous store and forward means the transmission of a patient's medical information from an originating site to the health care provider for telehealth at a distant site without the presence of the patient.

  • apron means a defined area intended to accommodate aircraft for purposes of loading or unloading passengers, mail or cargo, fuelling, parking or maintenance;