ThomasNet News Logo
Sign Up | Log In | ThomasNet Home | Promote Your Business

Moisture Conditioning Standard looks at compacted asphalt.

Print | 
Email |  Comment   Share  
June 22, 2011 - ASTM International Committee D04 on Road and Paving Materials is working on ASTM WK32764, Practice for Moisture Conditioning Compacted Asphalt Mixture Samples by Using Hydrostatic Pore Pressure. This proposed moisture conditioning method for compacted asphalt samples is time-efficient and allows for simulation of field conditions. Testing device described in ASTM WK32764 emulates action of vehicle tire on wet pavement via generated pore pressure inside compacted asphalt sample.

ASTM Road and Paving Committee at Work on Proposed Moisture Conditioning Standard for Compacted Asphalt Samples


(Archive News Story - Products mentioned in this Archive News Story may or may not be available from the manufacturer.)

ASTM International
100 Barr Harbor Dr., Box C700
West Conshohocken, PA, 19428-2959
USA



Press release date: June 17, 2011

W. CONSHOHOCKEN, Pa.-ASTM International Committee D04 on Road and Paving Materials is currently at work on a proposed moisture conditioning method for compacted asphalt samples that is both time-efficient and allows for the simulation of field conditions. ASTM WK32764, Practice for Moisture Conditioning Compacted Asphalt Mixture Samples by Using Hydrostatic Pore Pressure, is under the jurisdiction of Subcommittee D04.22 on Effect of Water and Other Elements on Bituminous Coated Aggregates.

"When a tire goes over a wet pavement, water is initially pushed into the asphalt pores and is then pulled out as the tire lifts off the pavement," says Ali Regimand, president, InstroTek Inc., and an ASTM member. "Water movement in and out of the voids creates pore pressure within the mixture and can cause liquid asphalt (binder) to strip from aggregates. Loss of bond between aggregates and binder could result in aggregate raveling and premature moisture damage on pavements."

Regimand says that the testing device described in ASTM WK32764 emulates the action of a vehicle tire on a wet pavement by generated pore pressure inside a compacted asphalt sample. Mixtures can be tested for moisture damage susceptibility, prior to laying down a pavement, in an enclosed water filled chamber.

"This test can help engineers design mixtures that are less moisture sensitive and since results can be obtained relatively fast, technicians and agencies can use the device described in the proposed standard for quality control, before, during and after construction," says Regimand.

ASTM International welcomes and encourages participation in the development of its standards. For more information on becoming an ASTM member, visit www.astm.org/JOIN.

ASTM International is one of the largest international standards development and delivery systems in the world. ASTM International meets the World Trade Organization (WTO) principles for the development of international standards: coherence, consensus, development dimension, effectiveness, impartiality, openness, relevance and transparency. ASTM standards are accepted and used in research and development, product testing, quality systems and commercial transactions.

View this release on the ASTM Web site at www.astmnewsroom.org.

ASTM Committee D04 Next Meeting: Dec. 6-8, 2011, December Committee Week, Anaheim, Calif.

Technical Contact: Ali Regimand, Instrotek Inc., Raleigh, N.C., Phone: 919-875-8371; aregimand@instrotek.com

ASTM Staff Contact: Daniel Smith, Phone: 610-832-9727; dsmith@astm.org ASTM PR Contact: Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org
Print | 
Email |  Comment   Share  
Contacts: View detailed contact information.


 

Post a comment about this story

Name:
E-mail:
(your e-mail address will not be posted)
Comment title:
Comment:
To submit comment, enter the security code shown below and press 'Post Comment'.
 



 See related product stories
More .....
 See more product news in:
Services
 More New Product News from this company:
ASTM Workshop to address additives in biomedical polymers.
Oil Training Course examines sampling, testing, evaluation.
Radiant Barrier Systems Standards approved by ASTM committee.
Training Course addresses hazards in oxygen systems.
More ....
| Featured Manufacturing Jobs
 Other News from this company:
ASTM/NIBS Workshop on Building Science Education in North America
Fatigue and Fracture of Metallic Medical Materials and Devices
ASTM International Compilation on Silica and Associated Respirable Mineral Particles
Guidance for Potential Solar Photovoltaic Investors to Be Provided in Proposed ASTM Standard
Test for Sustained Air Performance of Central Vacuum Cleaning Units Approved as ASTM Standard
More ....
 Tools for you
Watch Company 
View Company Profile
Company web site
More news from this company
E-mail this story to a friend
Save Story
Search for suppliers of
Trade Associations


Home  |  My ThomasNet News®  |  Industry Market Trends®  |  Submit Release  |  Advertise  |  Contact News  |  About Us
Brought to you by Thomasnet.com        Browse ThomasNet Directory

Copyright © 2014 Thomas Publishing Company. All Rights Reserved.
Terms of Use - Privacy Policy



Error close

Please enter a valid email address