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Resource Materials Testing 

"Specialists in Fly Ash and Pozzolan Testing"

 class c fly ash, class f fly ash, natural pozzolan, silica fume, metakaolin, kiln dust, cement, ASTM 

Resource Materials Testing (RMTI) has been providing cost effective, independent testing and consultative services to the fly ash, pozzolan and cement industry for over 30 years.


 RMTI routinely performs quality control and evaluation of pozzolanic materials including:

  • coal fly ash
  • coal bottom ash
  • slag
  • silica fume
  • FBC ash
  • cement and lime kiln dusts
  • metakaolin and natural pozzolans
  • biomass ash   

We, including ASTM C618 and C989, to assist in the evaluation of new sources and quality assurance testing of existing sources. 



RMTI is an AASHTO R18 Accredited Laboratory (view our listing) and participates in the CCRL Pozzolan and Slag Proficiency Sample and Laboratory Inspection Programs.       



spherical fly ash particles, microscopyThe RMTI staff is always available and values the personal connection and customer satisfaction our clients receive.  We pride ourselves in providing accurate, timely, customized reports that meet the specific needs of each client.  Feel free to contact us at any time regarding testing, turnaround time, consultation, or any other questions you may have.