Laboratory evaluation of influence of operational tolerance (acceptance criterion) on performance of Hot-Mix Asphalt Concrete (open access)

Laboratory evaluation of influence of operational tolerance (acceptance criterion) on performance of Hot-Mix Asphalt Concrete

Report on a study examining the effects of variability in mix design of hot-mix asphalt concrete. The study tested the laboratory performance of the asphalt mixes and performed statistical analyses to determine the effects of each variable.
Date: June 2010
Creator: Vazquez, Christian G.; Aguiar-Moya, José Pablo; Smit, Andre de F. & Prozzi, Jorge Alberto
System: The Portal to Texas History
The rigid pavement database: overview and data collection plan (open access)

The rigid pavement database: overview and data collection plan

"In order to keep the rigid pavement (RP) database current and statistically representative of Texas' pavements, periodic reassessments of the database must be made in order to obtain updated sampling plans and new recommendations for future data collection. This report documents a study of the twenty-four-year database, examines the past and current demographics of the data, and identifies the need for improvement in critical areas."
Date: June 1998
Creator: Turen, Tracy; McCullough, B. Frank & Dossey, Terry
System: The Portal to Texas History
RTI Special Studies for TxDOT Administration in FY 2011 (open access)

RTI Special Studies for TxDOT Administration in FY 2011

Abstract: This research project was established by TxDOT's Research and Technology Implementation Office to address special studies required by the department's Administration during FY 2011. Three short-term, quick-turnaround tasks were completed and are documented.
Date: June 2012
Creator: Persad, Khali; Zhang, Zhanmin; Qazi, Abds; Harrison, Robert; Trevino, Manuel & Khwaja, Nabeel
System: The Portal to Texas History
Strut-and-Tie Model Design Examples for Bridges (open access)

Strut-and-Tie Model Design Examples for Bridges

A series of five detailed design examples feature the application of state-of-the-art strut-and-tie modeling (STM) design recommendations. Design components include: Five-Column Bent Cap of a Skewed Bridge, Cantilever Bent Cap, Inverted-T Straddle Bent Cap (Moment Frame), Inverted-T Straddle Bent Cap (Simply Supported), and Drilled-Shaft Footing.
Date: June 2012
Creator: Williams, Chris; Deschenes, Dean & Bayrak, Oguzhan
System: The Portal to Texas History
Validation and implementation of the structural condition index (SCI) for network-level pavement evaluation (open access)

Validation and implementation of the structural condition index (SCI) for network-level pavement evaluation

"The objective of this research is to validate the pavement Structural Condition Index (SCI) developed under a previous Research Project, 0-4322, and to develop guidelines for implementing the SCI at the network level."
Date: June 2011
Creator: Murphy, Michael; Zhang, Zhanmin & Peddibhotla, Sree Sravya Sruthi
System: The Portal to Texas History