§ 870S.3. Materials  


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  • All non-removable markings shall be thermoplastic, unless otherwise indicated on the Drawings. Thermoplastic markings shall have a thickness of 90 mils (2.3 millimeters) unless indicated otherwise on the Drawings. All non-removable work zone markings shall conform to the requirements of Specification Item 871S, "Reflectorized Pavement Markings", except for Section 871C.5, 'Performance Period for Type I Markings', Section 871C.6, 'Measurement' and Section 871C.7, 'Payment'.

    Thermoplastic or paint and beads applications shall not be used for removable markings.

    Unless otherwise shown on the Drawings or indicated in the Contract Documents:

    The Contractor shall have the option to use raised pavement markers to simulate standard markers in accordance with the Drawings. Longitudinal lines wider than four (4) inches {100 millimeters} may be simulated by the side-by-side placement of markers to increase the apparent line width in multiples of four (4) inches {100 millimeters}.

    Removable work zone pavement markings on final pavement surfaces shall be removable tape conforming to TxDOT Departmental Materials Specification DMS-8241.

    When raised reflective pavement markers are required on the Drawings to supplement the removable pavement markings, a marker shall be applied to the top of the tape at the approximate mid-length of tape used for broken lines and at approximate 20 foot (6 meter) spacing for solid lines.

    Raised pavement markers will not be allowed for words, symbols, shapes and diagonal or transverse lines.

    The paint shall be water-based and shall conform to Standard Specification Item 860S, "Pavement Marking Paint".

    The beads shall conform to Standard Specification Item 860S, "Pavement Marking Paint".

    The thermoplastic type materials shall conform to TxDOT Departmental Materials Specification Item DMS-8220, "Thermoplastic Pavement Markings".