Practices to Mitigate Alkali-Silica Reaction (ASR) Affected Pavements at Airports (2019) / Chapter Skim
Currently Skimming:
Pages 41-51
The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.
From page 41... ...
41 Introduction As part of the project, short telephone interviews were held with several airports known to have experienced ASR on their airside pavement facilities. The primary purpose of these interviews was to document the experiences of the airports in addressing ASR, particularly in terms of the types of treatments that were used and the level of success.
|
From page 42... ...
42 Practices to Mitigate Alkali-Silica Reaction (ASR) Affected Pavements at Airports In response to the ASR distress manifestations that were observed on Terminal 4, the airport undertook several different remedial actions: • Creation of a 2-ft (0.6-m)
|
From page 43... ...
Case Examples 43 The airport seals the joints to help keep incompressible materials out of the joints. Preformed compression sealants are the preferred sealing material for new concrete construction, but in resealing operations, silicone sealant is used.
|
From page 44... ...
44 Practices to Mitigate Alkali-Silica Reaction (ASR) Affected Pavements at Airports Hartsfield-Jackson Atlanta International Airport Hartsfield-Jackson Atlanta International Airport (ATL)
|
From page 45... ...
Case Examples 45 ATL has instituted an aggressive patching program to maintain the serviceability of their pavements that are exhibiting ASR. The airport currently uses CTS Rapid Set for partial-depth repairs and requires minimum 6-inch (150-mm)
|
From page 46... ...
46 Practices to Mitigate Alkali-Silica Reaction (ASR) Affected Pavements at Airports Bravo and Runway 9L.
|
From page 47... ...
Case Examples 47 Expansion joints were frequently cut into the pavement to accommodate movements, and these ranged in width from 6 inches (150 mm)
|
From page 48... ...
48 Practices to Mitigate Alkali-Silica Reaction (ASR) Affected Pavements at Airports improve overall performance.
|
From page 49... ...
Case Examples 49 Figure 26. ASR pattern cracking around joints (courtesy of Applied Pavement Technology, Inc.)
|
From page 50... ...
50 Practices to Mitigate Alkali-Silica Reaction (ASR) Affected Pavements at Airports Figure 28.
|
From page 51... ...
Case Examples 51 or concrete overlays, were considered, it was believed that total reconstruction was the best option. Runway 17L-35R and Taxiway E were the first to be reconstructed, and several other taxiways were reconstructed short time later.
|
Key Terms
This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
More
information on Chapter Skim is available.