27 August 2019
DRP is now a USACE certified laboratory
DRP, a Twining Company, received notice this week from the U.S. Army Corps of Engineers’ (USACE) Materials Testing Center (MTC) and Engineer Research and Development... Read More
10 June 2019
Managing Structures Affected by Delayed Ettringite Formation and Alkali-Silica Reaction
Delayed Ettringite Formation (DEF) and Alkali-Silica Reaction (ASR) are significant durability issues that can lead to cracking that reduces the service life of concrete structures.... Read More
08 May 2019
DRP Keeps Growing
Greetings all—it’s been a long time since our last post. In fact, my last post dates back all the way to February 2017, when DRP... Read More
05 September 2018
Free Seminar: Concrete Petrography & Troubleshooting Concrete Construction Issues
Concrete is complex — we help you connect the dots Join DPR and Twining Concrete Insights for a free seminar on how concrete petrography can... Read More
15 February 2017
DRP, a Twining Company
We are excited to announce that DRP Consulting, Inc. was acquired by Twining, Inc. The new company is TI DRP, LLC, doing business as DRP,... Read More
10 January 2017
Concrete Petrography Talks in 2017
With the passage of 2016 we look forward to another great year in 2017. In the coming weeks we will put up some posts discussing... Read More
20 June 2016
Concrete Petrography Spans the Globe!
We were thrilled when the preeminent Russian Journal Cement invited David to publish a paper on concrete petrography. Troubleshooting Concrete Construction with Petrography and... Read More
28 January 2016
Petrographic Analysis of Concrete at WOC 2016!
DRP will represent again this year at the 2016 World of Concrete in Las Vegas next week. We look forward to returning to this great... Read More
05 September 2015
Concrete Petrography on Pinterest!
DRP started using Pinterest to share some of the images that we’ve been collecting while on recent (and some not so recent) projects. Check us out... Read More
15 July 2015
Concrete Petrography on the Road
The fall of 2015 promises to be busy for DRP. David will be on the road, speaking on various aspects of concrete petrography in several... Read More