Martins Zaumanis‎ > ‎

Research news

Do not repeat my mistakes!

posted Apr 25, 2019, 2:18 AM by Martins Zaumanis   [ updated Apr 25, 2019, 2:26 AM ]

https://docs.google.com/viewer?a=v&pid=sites&srcid=ZGVmYXVsdGRvbWFpbnxtYXJ0aW5maWxlc3RvcmFnZXxneDo3NDg2ZDIyNGEyNjU5NDdi

Knowing what not to do can save a lot of frustration. I share my experience on how not to use performance-tests for mix design in this article. I hope this will save your time and effort.

How to choose where to add rejuvenator addition in asphalt plant?

posted Dec 14, 2018, 4:21 AM by Martins Zaumanis   [ updated Dec 14, 2018, 4:21 AM ]

https://sites.google.com/site/martinszaumanis/_/rsrc/1467138143809/publications/Adobe_PDF_IconSSS.jpg
Where you add rejuvenator in asphalt plant determines the performance of the final mixture. Moreover, it can affect the emissions and safety. But the best way may not be the most common way. 
In the new paper we look at 10 different locations for rejuvenator addition. We were using a modern Ammann recycling plant belonging to BHZ. See the article here. 

Presenting in Moscow

posted Nov 30, 2018, 6:38 AM by Martins Zaumanis   [ updated Nov 30, 2018, 6:38 AM ]

Did you know Russia is implementing Superpave specifications? I found it out during my first visit to Moscow at the conference "Organic Binders in Road Construction" on 21-23. November 2018.

Comparison of two low-temperature cracking tests for use in performance-based asphalt mixture design

posted Nov 30, 2018, 6:14 AM by Martins Zaumanis   [ updated Nov 30, 2018, 6:20 AM ]

https://docs.google.com/viewer?a=v&pid=sites&srcid=ZGVmYXVsdGRvbWFpbnxtYXJ0aW5maWxlc3RvcmFnZXxneDozMjNmY2VjZjZmYTA5OTIz
Which performance test to use for designing mixtures and controlling quality? This was the question I was asked in Latvia. Here is an article describing why I recommended TSRST for inclusion in Latvian national road specifications.
Click here to access.

Publication in industry journal Asphalt&Bitumen

posted Oct 25, 2018, 2:29 AM by Martins Zaumanis

https://docs.google.com/viewer?a=v&pid=sites&srcid=ZGVmYXVsdGRvbWFpbnxtYXJ0aW5maWxlc3RvcmFnZXxneDo2YzE3NWEzMWFjODZlM2Q
The industry journal Asphalt&Bitumen has published an article about our work on performance-based mixture design (in german). I hope this brings the research results closer to the practical use by the industry! The article can be accessed here. 

Newspaper article in Tages Anzeiger

posted Sep 4, 2018, 8:12 AM by Martins Zaumanis   [ updated Sep 4, 2018, 8:16 AM ]

Tages Anzeiger in Switzerland wrote an article about our research. It's in German, so you will have to learn the language before finding out the secret sauce to recycling:)

New paper: How to reduce reclaimed asphalt variability: A full-scale study

posted Aug 28, 2018, 7:14 AM by Martins Zaumanis   [ updated Sep 4, 2018, 7:55 AM ]

Variability is one of the main causes limiting production of highly recycled asphalt. But there are methods to improve it. In the paper I quantify by how much can the variability be reduced through milling and stockpile mixing operations. It turns out that highly variably pavement can still be used at up to 40%, if the right homogenization procedure is applied.
See the full article here.  You can also click on the video to the left to see a summary.  

Tailor made asphalt

posted Aug 8, 2018, 7:29 AM by Martins Zaumanis   [ updated Aug 8, 2018, 7:30 AM ]

Newswise is writing about our research to create the ideal asphalt pavement: https://www.newswise.com/articles/step-by-step-to-the-perfect-and-sustainable-pavement2


Article on rejuvenator addition location in asphalt plant

posted Jul 9, 2018, 4:26 AM by Martins Zaumanis   [ updated Jul 12, 2018, 1:39 AM ]

https://docs.google.com/viewer?a=v&pid=sites&srcid=ZGVmYXVsdGRvbWFpbnxtYXJ0aW5maWxlc3RvcmFnZXxneDo2ZWFiMTNkNjRkZjc5OTVl
How to apply rejuvenators to achieve maximum efficiency? If this is a question that does not let you sleep at night, please my new article. We performed a full scale trial to compare two rejuvenator addition points: on hot RAP versus on cold RAP. Then we analyzed the RAP binder to see if there are any differences. Hint: there were none, but that is a good thing! See why in the full article
 here. 

The positive results encouraged us to continue the research and soon an article concerning rejuvenator addition spot effect on mixture properties will also be published.

ISAP 2018 conference presentation (and party)

posted Jun 28, 2018, 4:29 AM by Martins Zaumanis   [ updated Jul 9, 2018, 4:28 AM ]

The ISAP conference 2018 in Fortaleza demonstrated some interesting studies from all parts of the world. I presented a study on using performance-based test methods to balance the mixture performance. But that was non all. This is Brazil after all. The highlight of the conference was the evening party where everyone gave in to the Brazilian rhythms. 

1-10 of 47