Precision Estimates for AASHTO Test Methods T 186, T 154, and T 22, Determined Using CCRL Proficiency Sample Data
The objective of this study was to update single-operator and multilaboratory precision estimates for the AASHTO T 186 “Early Stiffening of Hydraulic Cement (Paste Method)”, T 154 “Time of Setting of Hydraulic Cement Paste by Gillmore Needles”, and T 22 “Compressive Strength of Cylindrical Concrete Specimens” based on the most recent version of the test methods. This work was limited to an evaluation of 24 sets of data collected from laboratories participating in the physical analysis of hydraulic cement paste and compressive properties of hydraulic cement concrete of the Cement and Concrete Reference Laboratory (CCRL) Proficiency Sample Program. The data used reflect a wide range of test values and cement types, which are included in the scope of the CCRL Proficiency Sample Program.
- Record URL:
-
-
Availability:
- Find a library where document is available. Order URL: http://worldcat.org/isbn/9780309435819
-
Authors:
- Azari, Haleh
- Lutz, Robert
- Publication Date: 2009
Language
- English
Media Info
- Media Type: Web
- Edition: Contractor Final Report
- Features: Appendices; References; Tables;
- Pagination: 48p
-
Serial:
- NCHRP Web-Only Document
- Issue Number: 140
- Publisher: Transportation Research Board
Subject/Index Terms
- TRT Terms: Compressive strength; Concrete; Concrete tests; Hydraulic cement; Laboratory tests; Precision; Test procedures
- Identifier Terms: AASHTO Standard Specifications for Transportation Materials and Methods of Sampling and Testing; AASHTO T 154; AASHTO T 186; AASHTO T 22; CCRL Proficiency Sample Program; Cement and Concrete Reference Laboratory
- Uncontrolled Terms: Cylindrical specimens
- Subject Areas: Highways; Materials; I32: Concrete;
Filing Info
- Accession Number: 01139515
- Record Type: Publication
- ISBN: 9780309435819
- Report/Paper Numbers: NCHRP Project 09-26A
- Files: TRIS, TRB, ATRI
- Created Date: Sep 15 2009 11:25AM