00624764

Component

http://onlinepubs.trb.org...trr/1992/1334/1334-003.pdf

https://scholar.google.co...ogge&publication_year=1992

A survey of the 50 state highway departments on their use of blade-patching as a maintenance technique is summarized. Blade-patching is defined as cleaning a pavement area, applying tack coat, applying asphalt mix with a motor grader or spreader box, and compacting. On the basis of the information obtained from the survey, a cost analysis comparing blade-patching to a 2-in. overlay was made, illustrating the use of an economic model for decisions between maintenance alternatives. Of the 43 states that responded to the survey, 38 use blade-patching. State highway divisions spend more than $175 million a year on blade-patching, but there is wide disagreement about its usefulness. The best estimate of blade-patch life is 3 years, and economic analysis comparing blade-patching to a 2-in. hot mix overlay indicates that blade-patching should seldom be used if traffic exceeds 1,500 average daily traffic or if blade-patching required to maintain the pavement exceeds 125 tons/mi/year.

This paper appears in Transportation Research Record No. 1334, Maintenance of Pavements, Lane Markings, and Roadsides. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

01407208

English

p. 12-15

1992

Transportation Research Record

0309052025

Figures (1) ; References (5) ; Tables (1)

Alternatives analysis; Analysis; Costs; Data collection; Highway departments; Overlays (Pavements); Pavement maintenance; State departments of transportation; Surveys

Cost analysis

Finance; Highways; Maintenance and Preservation; I61: Equipment and Maintenance Methods

TRIS, TRB

Aug 5 1993 12:00AM

• BENEFIT-COST ANALYSIS OF LANE MARKING
• COMPARING RECTANGULAR AND TRAPEZOIDAL SEALS USING THE FINITE ELEMENT METHOD
• DEFINING PAVEMENT MAINTENANCE AND DISTRESS PRECURSORS FOR PAVEMENT MAINTENANCE MEASUREMENTS (ABRIDGMENT)
• EVALUATION AND TREATMENT OF SLAB STEPPING ON A MAJOR RUNWAY
• QUANTITATIVE ANALYSIS OF JOINT SEALANTS USING FTIR-ATR
• ROADSIDE WILDFLOWER MEADOWS: SUMMARY OF BENEFITS AND GUIDELINES TO SUCCESSFUL ESTABLISHMENT AND MANAGEMENT
• THINNER AND THINNER ASPHALT LAYERS FOR MAINTENANCE OF FRENCH ROADS