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Control of Material

1604Plant Inspection — Commercial Facility

MN · 2025 Standard Specifications✓ Full text on BuildSpecBook pages 71–0 Save this section

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1604.1GENERAL

The Engineer may perform plant inspection and test Material at the source before delivery to determine compliance with those test requirements and process controls required by the Contract during production. The Engineer may retest Material at the site regardless of approvals given before final inspection and acceptance. The Engineer will base Material acceptance on compliance with Contract requirements at the time of incorporation in the Work. The Engineer may retest Material after delivery and will reject Material that fails to meet the Contract requirements. The cost of facilities and assistance provided by the Contractor required for inspection of Materials at the source will be considered as part of the production costs and are included in the Contract Unit Prices applying to the Work involved.

1604.2INSPECTION PROCEDURES

The Contractor shall meet the following conditions when the Engineer performs a plant inspection:

(1)At least 14 Calendar Days before starting production, notify the Engineer of the date

and place of production to allow for arrangements for the plant inspection

(2)Notify the Engineer of the production schedule and other related information

concerning inspection arrangements

(3)In partnership with the producer, cooperate with and assist the Engineer in the

inspection. The Department’s inspectors will not handle the Materials being inspected

(4)Arrange, store, and handle the Material as directed by the inspector
(5)Provide the Engineer with office space as defined in 1604.3, “Plant Inspection –

Commercial Facility, Requirements For Facilities,” at commercial production plants and other facilities, tools deemed necessary for inspection, and free entry to the plant locations where manufacturing or production occur

(6)Provide and maintain safety measures. The Engineer will terminate inspection at the

source if conditions are deemed hazardous by the Engineer

1604.3REQUIREMENTS FOR FACILITIES

Commercial plants producing bituminous mixture, structural concrete, or graded A ggregates for State Projects shall have in-plant inspection facilities meeting the following requirements:

(1)Floor area of at least 120 square feet, with weatherproof exterior construction,

adequate natural lighting, and convenient accessibility

(2)Equipped with at least one suitable table or workbench, at least one stool and one chair,

an approved fire extinguisher for use intended, and a suitable storage cabinet with lock

(3)Provided with adequate electric lighting and electrical outlets, adequate heating system,

conveniently located sanitary facilities, and convenient access to running water supply

(4)Furnished with at least a 3-burner natural gas or electric stove for sample drying and

with effective forced-air ventilation

(5)Provided with an electrically powered mechanical sieving apparatus to determine

particle size distribution of fine Aggregate (less than No. 4 Sieve) capable of accommodating six full height No. 200 round Sieves with pan and cover provided by the Department. The Engineer will approve the apparatus after verifying that the sieving meets the requirements of AASHTO T 27 Standard Method of Test for Sieve Analysis of Fine and Coarse Aggregates. The producer shall make the in-plant inspection facilities available to the Engineer before beginning production. The producer shall maintain the in-plant inspection facilities until the termination of production, at no additional cost to the Department. If the facilities do not meet the requirements specified in this subsection, the Contractor shall provide an equivalent field laboratory unit at the plant site as directed by the Engineer and at no additional cost to the Department.

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Source: Minnesota Standard Specifications for Construction, 2025 Edition. Pages 71–0 of 1,081. View official source ↗

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