GEODIP's high-quality database: Clay
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- NGI report 
The purpose of this report is to present GEODIP's high quality database for clay materials. The database integrates existing high quality data from block sampling in clay as well as supplementary data from research and development (R&D) assignments, both offshore and onshore. The data is presented in the form of plots for possible correlations between strength and deformation parameters against index properties. The data is also compared to correlations found in the literature. Suggestions are given for field and laboratory work to supplement the data already included in the database. The report has been revised and updated in 2016-2017 (revision 1 and revision 2) to include the following: a) notes from a quality control of the data included in the database (section 5), b) notes about the scatter of the data in the database (section 6), and c) mineralogical data obtained from the literature and laboratory work performed in selected sites in the database (section 8).