Statistical quality control and quality assurance evaluation of structural and paving concrete
RM Diwan, S Shah, J Eggers - Transportation research …, 2003 - journals.sagepub.com
The variability associated with the production, construction, and testing of structural and
paving concrete is discussed. Data from more than 900 projects constructed from 1992
through 1999 representing more than 25,000 lots were evaluated. The data were collected
from the Louisiana Department of Transportation and Development's (DOTD's)
computerized Material Test Data Reporting System. The analysis indicated that (a) overall
price reductions were less than 0.2% for structural concrete and about 0.5% for paving …
paving concrete is discussed. Data from more than 900 projects constructed from 1992
through 1999 representing more than 25,000 lots were evaluated. The data were collected
from the Louisiana Department of Transportation and Development's (DOTD's)
computerized Material Test Data Reporting System. The analysis indicated that (a) overall
price reductions were less than 0.2% for structural concrete and about 0.5% for paving …
[HTML][HTML] Statistical quality control and quality assurance evaluation of structural & paving concrete: phase I final report.
RM Diwan, SC Shah - 2001 - rosap.ntl.bts.gov
This report discusses the variability associated with the production, construction, and testing
of structural and paving concrete. The study evaluated data from over 900 projects
constructed between 1992 and 1999, representing over 25,000 lots. The data was collected
from the DOTD computerized Materials Test Data Reporting System (MATT). The analysis
also included an assessment of price reductions for nonconforming lots. The analysis and
evaluation indicated: 1) an overall price reduction of less than 0.2 percent for structure …
of structural and paving concrete. The study evaluated data from over 900 projects
constructed between 1992 and 1999, representing over 25,000 lots. The data was collected
from the DOTD computerized Materials Test Data Reporting System (MATT). The analysis
also included an assessment of price reductions for nonconforming lots. The analysis and
evaluation indicated: 1) an overall price reduction of less than 0.2 percent for structure …