MS_274_004.pdf

This is a specification document issued by the Louisiana Department of Transportation and Development for lightweight aggregate used in deicing applications. The specification, identified as MS 274-004 and revised on September 14, 2021, establishes material requirements for lightweight aggregate intended for general maintenance applications and sanding roads and bridges. The document mandates that all aggregate conform to Subsection 1003.01 of the 2016 Louisiana Standard Specifications for Roads and Bridges and specifies precise grading requirements when tested according to the latest DOTD TR-113 standards, with gradation requirements ranging from 100% passing at 3/8 inch to 5-25% passing at the No. 100 sieve.

The specification includes mandatory sampling procedures that must comply with the Materials Sampling Manual. The document does not address pricing terms, contract duration, bid submission dates, award schedules, site visits, or bidder conferences, as it functions solely as a technical specification document rather than a procurement solicitation. This specification serves as a reference standard for material quality assurance and acceptance criteria for contractors and suppliers providing lightweight aggregate to the state.