If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, withing 24 hours on weekdays.
Customer service
All questions about your order, return and delivery must be sent to our customer service team by e-mail at yourstore@yourdomain.com
Sale & Press
If you are interested in selling our products, need more information about our brand or wish to make a collaboration, please contact us at press@yourdomain.com
Help
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, withing 24 hours on weekdays.
Customer service
All questions about your order, return and delivery must be sent to our customer service team by e-mail at yourstore@yourdomain.com
Sale & Press
If you are interested in selling our products, need more information about our brand or wish to make a collaboration, please contact us at press@yourdomain.com
Eight test sections were constructed in Connecticut with PG 6422 and PG 6428 in 2006. In order to compare the performance of PG 6422 and PG 6428 asphalt, field performance data and laboratory parameters from these test sections have been statistically analyzed and compared. It was found that the field cracking, roughness and rutting performances of PG 6422 and PG 6428 sections on Route 59 were not statistically different. Similarly, tensile strength ratio and APA rutting measured in the laboratory on PG 6422 and PG 6428 materials from Route 59 were not statistically different. However, field cracking and roughness on Route 341 were different for PG 6428 and PG 6422 sections while the laboratory parameters were the same. It was also found that field cracking correlated weakly with laboratory parameters such as true low PG, TSR (%) and critical cracking temperature.
⚠️ WARNING (California Proposition 65):
This product may contain chemicals known to the State of California to cause cancer,
birth defects, or other reproductive harm.
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support@ergodebooks.com
⚠️ California Proposition 65 Warning: Some products sold on this website may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.