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Publication Number: FHWA-RD-07-052
Date: September 2007

Long Term Pavement Performance Project Laboratory Materials Testing and Handling Guide

Protocol H20L
Accelerated Polishing of Aggregate Using the British Wheel (SC13)

This LTPP protocol covers the procedures for determining the polish value of aggregates used for the chip seals used as part of the SPS-3 studies. The tests will be performed in accordance with AASHTO T279-83, Accelerated Polishing of Aggregate Using the British Wheel.

The results will be recorded on LTPP Test Sheet H18.

LTPP LABORATORY MATERIAL HANDLING AND TESTING
LABORATORY MATERIAL TEST DATA
POLISH VALUE
LAB DATA SHEET H18

CHIP SEAL PROPERTIES
LTPP TEST DESIGNATION CS13/LTPP PROTOCOL H20L

LABORATORY PERFORMING TEST: _____________________________________________________________

LABORATORY IDENTIFICATION CODE: ___ ___ ___ ___

REGION: _________________________ STATE: STATE CODE: __ __

EXPERIMENT NO: _____ SHRP ID: __ __ __ __

SAMPLED BY: _________________________________________ FIELD SET NO: ___

DATE SAMPLED: __ __ - __ __ - __ __ __ __ SAMPLING AREA NO: SA- ____

1. LAYER NUMBER ___

2. LABORATORY TEST NUMBER __

3. LOCATION NUMBER __ __ __

4. LTPP SAMPLE NUMBER __ __ __ __

5. TEST RESULTS

      (a) Gradation, % Passing Each Sieve Standard

      ½ in. (12.5 mm) __ __.__

      3/8 in. (9.50 mm) __ __.__

      #4 (4.75 mm) __ __.__

      #8 (2.36 mm) __ __.__

      #10 (2.00 mm) __ __.__

      #200 (0.075 mm) __ __.__

      (b) INITIAL FRICTION VALUE __ __ __.__

      (c) POLISH VALUE __ __ __

6. COMMENTS

      (a) CODE ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___

      (b) NOTE _______________________________________________________

7. TEST DATE __ __ - __ __ - __ __ __ __

GENERAL REMARKS:___________________________________________________________________________
SUBMITTED BY, DATECHECKED AND APPROVED, DATE
____________________________________________________________
LABORATORY CHIEF
Affiliation______________________
Affiliation______________________
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The Federal Highway Administration (FHWA) is a part of the U.S. Department of Transportation and is headquartered in Washington, D.C., with field offices across the United States. is a major agency of the U.S. Department of Transportation (DOT).
The Federal Highway Administration (FHWA) is a part of the U.S. Department of Transportation and is headquartered in Washington, D.C., with field offices across the United States. is a major agency of the U.S. Department of Transportation (DOT). Provide leadership and technology for the delivery of long life pavements that meet our customers needs and are safe, cost effective, and can be effectively maintained. Federal Highway Administration's (FHWA) R&T Web site portal, which provides access to or information about the Agency’s R&T program, projects, partnerships, publications, and results.
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