Details:

Creators:
Arribas-Colon, Maria del Mar ; Radlinski, Mateusz ; Olek, Jan ; Whiting, Nancy M.
Arribas-Colon, Maria del Mar ; Radlinski, Mateusz ; Olek, Jan ; Whiting, Nancy M. Less -
Corporate Creators:
Purdue University. Joint Transportation Research Program
Corporate Contributors:
United States. Federal Highway Administration
Subject/TRT Terms:
[+]
Air Voids Chlorides Concrete Pavements Cracking Of Concrete Pavements Deterioration Freeze Thaw Durability Pavement Joints Pavement Performance Portland Cement Concrete Spalling
Publication/ Report Number:
FHWA/IN/JTRP-2012/25 ; FHWA/IN/JTRP-2012/26
FHWA/IN/JTRP-2012/25 ; FHWA/IN/JTRP-2012/26 Less -
Resource Type:
Tech Report
Geographical Coverage:
Indiana
Corporate Publisher:
Indiana. Dept. of Transportation
NTL Classification:
NTL-HIGHWAY/ROAD TRANSPORTATION-Pavement Management and Performance
Abstract:
Some of the Indiana concrete pavements constructed within the last 10‐20 years have shown signs of premature deterioration, especially in the

areas adjacent to the longitudinal and transverse joints. This deterioration typically manifested itself as cracking and spalling of concrete

combined with the loss of material in the direct vicinity of the joint. In addition, in some cases “bulb‐shaped” damage zones were also observed

under the sealed parts of the joints.

The objective of this study was to investigate possible causes of this premature deterioration. To reach this objective, the characteristics of the

concrete in and near the deteriorated joints were compared and contrasted to the concrete characteristics in the non‐deteriorated sections of

pavement. The study was conducted in two different phases (Phase I and Phase II), and the findings are presented as a two‐part report.

The investigation started with a detailed inventory of selected areas of affected pavements in order to identify and classify the existing types of

distresses and select locations for collection of the cores. During the Phase I of the study a total of 36 concrete cores were extracted from 5

different pavements.. During Phase II of the study a total of 18 cores were retrieved from five different pavement sections and subject to

examination. The cores were subjected to eighth different tests: air‐void system determination, Scanning Electronic Microscopy (SEM) analysis, Xray

diffraction (XRD) analysis, sorptivity test, freeze‐thaw & resonance frequency test, resistance to chloride ion penetration (RCP) test and

chloride profile (concentration) determination.

The test results identified several cases of in‐filling of the air voids (especially smaller air bubbles) with secondary deposits. These deposits were

most likely the result of the repetitive saturation of air voids with water and substantially reduced the effectiveness of the air voids system with

respect to providing an adequate level of freeze‐thaw protection. Specifically, it was observed that the existing air void system in the concrete

from panels near the deteriorated longitudinal joint had neither spacing factors nor specific surface values within the range recommended for

freeze‐thaw durability. Contrary to this, nearly all the concrete in lanes without damage had an adequate air void system at the time of sampling.

In addition, the affected concrete often displayed an extensive network of microcracks, had higher rates of absorption and reduced ability to

resist chloride ions penetration.

From the observation of the drains performed using the remote camera it was obvious that not all the drains were functioning properly and some

were entirely blocked. However, more precise or direct correlations could not be made between the conditions of the drains and observed

pavement performance.


Format:
PDF
Funding:
SPR-3016
Collection(s):
US Transportation Collection
Main Document Checksum:
[+]
urn:sha256:91775fcfc98a0ee98deea6df7e0db2dc19edcc709431b82c7824c8faa3699100
Download URL:
https://rosap.ntl.bts.gov/view/dot/25946/dot_25946_DS1.pdf
File Type:

Supporting Files

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