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205
was determined for several combinations of substrate
treatment and overlay (latex-modified concrete, low-
slump dense concrete, and polymer concrete) after scar-
ification was simulated. Treatments of the concrete with
methyl methacrylate consistently gave superior perform-
ance with respect to durability and corrosion resistance
provided the concrete was dry prior to impregnation. Two
impregnated inhibitors (calcium nitrite and a commercial
rust inhibitor) and a hydrophobic silane improved cor-
rosion resistance, but durability under freezing and thaw-
ing conditions was decreased. Sulfur gave variable or poor
results. A new technique for impregnation was also de-
veloped, based on deeply grooving the concrete to facil-
itate drying and the impregnation process.
Research has been completed, and the final report has
been published as: NCHRP Report 257, "Long-Term
Rehabilitation of Salt-Contaminated Bridge Decks." The
published report contains an appendix detailing the deep
grooving technique as a means to facilitate deep polymer
impregnation, i.e., impregnation to a depth to include the
encapsulation of the top reinforcing steel in bridge decks.
An agency "Supplement to NCHRP 257" containing sev-
eral additional appendixes was distributed to NCHRP
sponsors only. It is available to others on a loan basis or
a purchase basis for the cost of reproduction (see final
page of this section for ordering information). The ap-
pendixes in the supplemental report detail the laboratory
investigations and present the development and use of an
economic model for comparing cost-e~ectiveness of var-
ious alternatives.
AREA 19: FINANCE
Project 19-1 FY '68
Budgeting for State Highway Departments
Research Agency:
Principal Invest.:
Elective Date:
Completion Date:
Funds:
Ernst & Ernst
F. W. Hinck, Jr.
September 5, 1967
September 4, 1968
$45,000
Although budget plans of varying effectiveness now
exist in the several State highway departments, there is
no indication that highway administration recognizes and
utilizes the budget process to its full potential.
Research is needed with the long-range objective of
devising a concisely defined framework of budget systems,
together with detailed documentation for implementing
policies and procedures. To meet this need, the research-
ers analyzed the organization plans and funding arrange-
ments controlling State highway departments. They
determined in detail the prerequisites which must be sat-
isfied and the problems requiring resolution for elective
State highway budgetary systems to be instituted. Doc-
umented recommendations were developed for devising
a concise universal State highway budgeting system with
detailed aids for implementing appropriate policies and
procedures.
Research has been completed. The project report will
not be published in the regular NCHRP report series, but
the essential findings from the report have been published
in NCHRP Research Results Digest 20.
Project 19-2(1) FY '69
Develop Performance Budgeting System to
Serve Highway Maintenance Management
Research Agency: Booz . Allen & Hamilton
Principal Invest.: H. L. Wilsey
Elective Date: September 2, 1968
Completion Date: October 31, 1968
Funds: $6,000
With highway maintenance expenditures rapidly in-
creasing due to completion of the Interstate System, rising
traffic volumes, trends toward higher standards of phys-
ical maintenance, and more traffic services, it becomes
increasingly important that maintenance operations be
based on reasonable and effective maintenance budgets.
The scope of this project was to develop independent
work plans to be used as the research plan for the second-
phase work. The work plan has been received but will
not be published. Refer to Project 19-2~4) for description
of the over-all project objectives and details of Phase II
of this study.
Project 19-2~2) FY '69
Develop Performance Budgeting System to
Serve Highway Maintenance Management
Research Agency:
Principal Invest.:
Effective Date:
Completion Date:
Funds:
Ernst & Ernst
F. W. Hinck, Jr.
September 2, 1968
October 31, 1968
$6,000
With highway maintenance expenditures rapidly in-
creasing due to completion of the Interstate System, rising
traffic volumes, trends toward higher standards of phys-
ical maintenance, and more traffic services, it becomes
increasingly important that maintenance operations be
based on reasonable and effective maintenance budgets.
The scope of this project was to develop independent
work plans to be used as the research plan for the second-
phase work. The work plan has been received but will
not be published. Refer to project 19-2~4) for description
of the over-all project objectives and details of Phase II
of this study.
Representative terms from entire chapter:
highway departments
