Waterproofing Membranes for Concrete Bridge Decks (2012) / Chapter Skim
Currently Skimming:
Pages 40-57
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 40... ...
2009. Specification for Waterproofing Bridge Decks with Hot Applied Asphalt Membrane, OPSS 914, Ontario, Canada, 21.Wojakowski, J
|
From page 41... ...
1996, 69 pp. D4632 Standard Test Method for Grab Breaking Load and 33.Transportation Research Circular E-C-022: Mainte- Elongation of Geotextiles nance Research Master Planning Workshop, Transporta D4787 Standard Practice for Continuity Verification of Liq tion Research Board of the National Academies, uid or Sheet Linings Applied to Concrete Substrates Washington, D.C., Nov.
|
From page 42... ...
32 D6153 Standard Specification for Materials for Bridge Deck E96/E96M Standard Test Methods for Water Vapor Trans Waterproofing Membrane Systems mission of Materials D6690 Standard Specification for Joint and Crack Sealants, E154 Standard Test Method for Water Vapor Retarders Used Hot Applied, for Concrete and Asphalt Pavements in Contact with Earth Under Concrete Slabs, on Walls, or as Ground Cover
|
From page 43... ...
A total of 51 responses were received, including 18 from agencies that have not used waterproofing membranes since 1994. Synthesis Survey Topic 42-07 Waterproofing Membranes for Concrete Bridge Decks 1.
|
From page 44... ...
Does your agency continue to specify the use of waterproofing membranes for new concrete bridge decks?
|
From page 45... ...
0 to 5 6 to 10 11 to 15 16 to 20 21 to 25 > 25 New Bridge Decks Existing Bridge Decks 10. What is the basis for the answers to the previous question?
|
From page 46... ...
No 16. Does your agency have specifications for the surface preparation of existing concrete bridge decks prior to the application of the waterproofing membrane system?
|
From page 47... ...
PERFORMANCE 19. What defects has your agency observed in the performance of waterproofing membranes on new concrete bridge decks?
|
From page 48... ...
____________________________________________________________________ ____________________________________________________________________ 20. What defects has your agency observed in the performance of waterproofing membranes on existing concrete bridge decks?
|
From page 49... ...
REASON FOR NON-USE 24. If your agency has not used or has discontinued the use of waterproofing membranes since 1994, please explain why and include details of unsuccessful experiences and reasons, if applicable.
|
From page 50... ...
highway agencies and Canadian Provinces: U.S. States Nevada Ontario Alaska New Hampshire Prince Edward Island Arizona New Jersey Quebec Arkansas New York Saskatchewan California New Mexico Yukon Colorado North Carolina Connecticut North Dakota Delaware Oklahoma District of Columbia Oregon Florida Pennsylvania Georgia South Carolina Hawaii South Dakota Idaho Tennessee Illinois Texas Indiana Utah Iowa Virginia Kansas Washington Kentucky Wisconsin Louisiana Wyoming Maryland Canadian Provinces Michigan Alberta Minnesota Manitoba Mississippi New Brunswick Missouri Newfoundland and Labrador Nebraska Nova Scotia
|
From page 51... ...
3. Does your agency continue to specify the use of waterproofing membranes for new concrete bridge decks?
|
From page 52... ...
at http://www.dot.state.ak.us/stwddes/desmaterials/qpl_intro.shtml 2004 Standard Specifications for Highway Construction http://www.dot.state.ak.us/stwddes/dcsspecs/resources.shtml# California Deck Seal: http://www.dot.ca.gov/hq/esc/oe/specifications/SSPs/2006-SSPs/Sec_10/49-59/54-120_E_B11-16-07.doc Slurry Leveling Course: http://www.dot.ca.gov/hq/esc/oe/specifications/SSPs/2006-SSPs/Sec_10/49-59/54-150_E_B05-01 06.doc Colorado http://apps.coloradodot.info/apl/SearchRpt.cfm? cid=3&scid=36&bcid=18 Connecticut Approved products list at: http://www.ct.gov/dot/lib/dot/documents/dpublications/816/012004/2004_816_original.pdf See Division II, Section 7.07 and Division III Section M12.04 for specifications pertaining to Membrane Waterproofing (Woven Glass Fabric)
|
From page 53... ...
Yes No New Bridge Decks 17 15 Existing Bridge Decks 20 13 If the answer to either of the above is Yes, please provide the criteria. Respondent New Bridge Existing Criteria Decks Bridge Decks Alaska Yes Yes If an asphalt overlay is used, a waterproofing membrane is specified where possible.
|
From page 54... ...
Utah No Yes Waterproofing membranes are standard practice when applying asphalt wearing surfaces on any existing deck. The combination of membrane and asphalt overlay usually occurs when a deck requires pothole patching.
|
From page 55... ...
Respondent New Bridge Existing Basis Decks Bridge Decks Alaska 16 to 20 11 to 15 If properly installed, asphalt deterioration typically governs membrane service life, 1015 years. On new bridges, a 4-in.-thick overlay is typically used and may extend the service life, whereas on existing bridges less than 4-in.
|
From page 56... ...
MIT is beginning to move away from waterproofing membranes and asphalt overlay systems to exposed concrete decks on our bridges due to deck perfor mance enhancements realized by using fibre-reinforced concrete. Ancillary benefits are reduced dead load and/or increased structural capacity of the deck and better long-term per formance of the riding surface (less rutting in wheel paths and potholes at joints)
|
From page 57... ...
Other If other, please describe briefly. Other reasons given were as follows: · Waterproofing membranes that were observed to have a significantly reduced service life were eliminated from use.
|
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.