SmecTech

                    Research Consulting

SmecTech

SmecTech provides high quality R&D and Consulting Services to :

· Bentonite Producers

· Manufacturers of Geosynthetic Clay Liners (GCLs)

· Environmental Engineering Firms

· Landfill & Waste Repository Designers

 

SmecTech in the News:

· Geosynthetica

· 2014 CMS Jackson Award

Invest in Knowledge                        

Copyright 2006-2014

Contact Smectech at

gateswp@smectech.com.au

 

Did you know? 

Dioctahedral smectites have two octahedral layer types: the trans vacant and the cis vacant varieties,  because one octahedral site (of three total) is vacant in dioctahedral smecctites. Generally nontronites and beidellites are trans vacant, while most montmorillonites are cis vacant. Many smectites are composed of interstratifications of these two arrangements. Trans vacant smectites typically have higher dehydroxylation temperatures tan cis vacant smectites. Powder X-ray diffraction can be used to determine the arrangements, and infrared spectroscopy can assist in quantifying site occupancies and thermal analysis is useful for estimating the degree of interstratifications.

 

Figure from Gates and Cashion 2014 Nearest neighbor Distributions in Smectites. 51st Annual Meeting of The Clay Minerals Society, College Station Texas