I interviewed at Heidelberg Materials (Irving, TX) in June 2013
Interview
Initially, it was a telephone interview. On being satisfied, the manager called for a face-to-face interview. It was a relaxed friendly environment. The interview was for an hour and was conducted by technical team of 2 and then the manager.
Straight forward and friendly interview experience. You need a well rounded knowledge on the topic and they can assist you if you have lack of knowledge on a certain idea
I applied online. The process took 1 day. I interviewed at Heidelberg Materials (Irving, TX) in Mar 2018
Interview
Standard interview- behavioral questions. Questions about the industry. Questions about past experiences. Pretty similar to any interview I've ever had. Prepare for the interview and you should be fine.