722.01 DESCRIPTION. Furnish laboratory buildings at the project sites
for soils and aggregates testing. These laboratories are to be provided exclusively for the use of Department personnel involved in the Department’s Quality Assurance Program.
722.02 GENERAL REQUIREMENTS. Field laboratories shall be
weather tight and constructed of wood, metal, masonry, or other approved materials for the purpose of housing the personnel, testing equipment, records, and reports as necessary for the Quality Assurance Program. Each laboratory shall have a minimum floor space of 160 square feet, or other approved size, that provides sufficient space with a minimum ceiling height of 7 feet. The laboratory shall have at least one outside door and have sufficient windows. The laboratory buildings shall have electric lighting and power outlets as directed. Provide fume hoods with electric exhaust fans of such size and location as to ensure continuous removal of hazardous fumes and air borne particles during testing operations. Secure the building and contents by suitable lock and catches. Afford the engineer access to the laboratory at all times and provide him or her with a set of keys as necessary. Laboratory buildings shall be constructed, furnished, maintained, and located as approved. Provide suitable desks, chairs, and file cabinets for personnel using these facilities. Construct sturdy work benches along at least one wall, or as directed, to provide sufficient work area for the types of tests being conducted. Laboratory buildings shall be heated and air conditioned, and with sanitary facilities. Provide a telephone for Departmental use. The laboratories may be used for successive phases of a project without additional compensation.
722.03 PROJECT SITE LABORATORY. Field laboratory buildings at
the project site shall be movable types which can be placed near construction areas. Move the building to various locations on the project as directed.
722.04 Equipped Project Site Laboratory.
Furnish, install, and maintain the following equipment in satisfactory condition, as needed, for soils and aggregates testing throughout the life of the project:
1.An automatic soil compaction hammer capable of compacting both standard and modified proctors, with arrangement for both 12 -inch and 18- inch drops and 4-inch and 6-inch molds and adjustable hammer weights from 5.5 to 10 pounds. The specifications for the hammer shall be in accordance with TR 415, Field Moisture-Density Relationships, and TR 418, Moisture- Density Relationships as specified for each mold diameter. The equipment shall include two molds of each size.
2.A comp action block or pedestal composed of portland cement concrete shall be furnished for use with the automatic compaction hammer. The block shall weigh a minimum of 200 pounds. The hammer shall be secured to the block.
3.An electronic scale capable of measuri ng in both English and metric units having a capacity of 30 pounds or more with a sensitivity of 0.1 pounds.
4.An electronic scale capable of measuring in metric units having a capacity of 2 kilograms or more with a sensitivity of 0.1 grams.
5.Two electric or gas hot plates and drying pans. An open flame hot plate shall be equipped with suitable shield to disperse heat evenly and to prevent direct contact of the flame with the drying pan. The hot plates shall be of sufficient size to accommodate the drying pans.
6.A stable internet connection with sufficient bandwidth to handle electronic communications and data file transfers between the site laboratory and the Department’s server applications. The automatic soil compaction hammer and scales noted above shall be calibrated by an independent laboratory on an annual basis and will be verified by the engineer.
722.05 MEASUREMENT. Project site laboratories furnished, equipped,
satisfactorily maintained, moved as directed, and subsequently removed from the project will be measured per each building.
722.06 PAYMENT. Payment for project site laboratories will be made at
the contract unit price per each under: Item No. Pay Item Pay Unit 722-01 Project Site Laboratory Each 722-02 Project Site Laboratory (Equipped) Each
Field Laboratories in other states
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Source: Standard Specifications for Roads and Bridges, 2016 Edition. Pages 495–497 of 1,145. View official source ↗