Two new standards from the Geosynthetics committee of ASTM will help define properties that can be used in the design of geosynthetic reinforced pavement. I know in my practice in Arizona, ADOT simply allows a boost of Resilient Modulus (R-Value) of 10 when biaxial geogrids are used. Perhaps in time this will lead to a design method to account for the geosynthetic reinforcement in a more analytical way. [Source: Geosynthetics Magazine]
22nd April 2013, Redditch, UK – Keynetix are pleased to announce that an upgrade to KeyLAB has been released today that includes a number of new features requested by users to help them manage their geotechnical and concrete laboratory. The new build expands the functionality of the system to assist laboratory managers who are conducting concrete testing, working in a NATA accredited laboratory or with the ASTM standards and is available free of charge to all users who have an in-date maintenance agreement.
As well as the new features in this release, KeyLAB have produced a large number of free test definitions and input and report sheets for companies who are implementing KeyLAB within a laboratory, conducting tests to BS or ASTM standards. These worksheets and reports have been designed by Peter Keeton from Keynetix, who has over 30 years experience of managing large geotechnical laboratories.
[Editor] Click through for the rest of the press release from Keynetix. [/Editor]
Another busy month for ASTM with 66 new, revised or otherwise updated standards related to geotechnical and geological engineering (although not as busy as last month). A couple that caught my eye include brand new standards for geospatial data requirements related to abandoned mines, a new standard for sampling of EPS or geofoam, updated standards for mortar and cement, flexural strength of concrete, LA Abrasion test for aggregates, acceptance testing of geosynthetic clay liners, electrical methods for leak detection of geomembranes with earth cover and classification of soils and soil-aggregate mixtures for highway construction purpose (AASHTO classification).
Those involved in the materials testing side of the business should take a close look at the full list as there are also a number of updated standards relating to various asphalt and and aggregate tests, capping of concrete cyllinders and other related testing standards.
For my practice, perhaps the most significant standard that was updated was D 2488 – Standard Practice for Description and Identification of Soils (Visual-Manual Procedure) which we rely on for our field USCS classifications. I’ll be curious to see what those changes entail. Click through for the full list.
Over the last 18 months Peter Keeton has been heading up a team at Keynetix to write British Standard and ASTM Standard compliant test definitions, laboratory worksheets and reports for KeyLAB. This work has now been included free of charge with the latest installer of KeyLAB and enables new users of the software to be operational much quicker than ever before.
Peter Keeton has over 40 years of experience working in and managing geotechnical laboratories for Soil Mechanics and was an influential member of the CEN European Standards working group on geotechnical testing. Over this time he has produced many versions of laboratory worksheets for each test.
“By including the latest versions of Peter’s work into the system we have already seen an increase in the number of customers who are running trials of KeyLAB” said Dr Roger Chandler, Keynetix Managing Director. “The out of the box value of KeyLAB has increased significantly with this work and many users are now adopting the system with the standard sheets and only need to modify them with their company logos and details.”
[Editor] Read on for the rest of the press release from GeoPrac sponsor, Keynetix! [/Editor]