Thermoplastic Thickness Measuring Device
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Thermoplastic Thickness Measuring Device. Topics that will be covered. Equipment Procedure Flat Line Measuring Audible Cookies Transverse bars w/ Inverted Rib Thermo on FC-5. Step 1. Zero-out Gauges . Step 2. Remove base-plate . Battery Replacement. Procedure References:.

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Thermoplastic Thickness Measuring Device

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Thermoplastic Thickness Measuring Device


Topics that will be covered

  • Equipment

  • Procedure

  • Flat Line

  • Measuring Audible Cookies

  • Transverse bars w/ Inverted Rib

  • Thermo on FC-5


Step 1. Zero-out Gauges


Step 2. Remove base-plate


Battery Replacement


Procedure References:

1. Florida Method of Test

for

FIELD EVALUATION of

TRAFFIC

MARKING MATERIALS

Designation: 5-541

Standard Specifications Section 711

Developmental Specs. Sections 701 & 702


Measuring Flat Line


Center the gauge over the marking material in an area avoiding glass spheres and read the values of all three dial indicators.


By procedure, the staff will take three measurements with them being at the beginning, middle and end of each one mile section of line type. Then average of the three location measurements shall be used for acceptance of the one mile section of line type (FM 5-541).


Measuring Audible Cookies


Problem:

Cookies are too tall for device to measure.


Solution:

Take a reading across the cookie in the same direction as the line


Then one right in front of or behind the cookie, add the two numbers together.


Transverse Bars w/ Inverted Rib


Device can be used to measure this type of line.

Apply base lines having a thickness of 0.079 to 0.120 inches, exclusive of the transverse audible bars, when measured above the pavement surface at the edge of the base line. The profiled baseline shall have a minimum height of 0.155 inches, when measured above the pavement surface at the edge of the inverted rib profile. The thickness in the bottom of the profile marking shall be 0.035 to 0.050 inches. The individual profiles shall be located transversely across the full width of the traffic stripe.


Thermo on FC-5


Issue:

Having trouble getting required thickness due to the road soaking up material.


Solution:

Pay close attention to final thickness measurement.


Issues:


Things to Remember

  • Apply markings only to dry surfaces and when the ambient air and surface temperature is at least 50 deg and rising for asphalt surfaces and 60 deg and rising for concrete surfaces. (Dev. Spec. 702-4.1)

  • Before applying traffic stripes over portland cement concrete surface, apply a primer, sealer or surface preparation adhesive. (Dev. Spec. 702-4.1)


Any Questions????

Presented by: Jack R. Davis

District 5 Construction Support Specialist

[email protected]

386-943-5463


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