Analysis of Pavement Rutting Data from FHWA Pavement Testing Facility Superpave Validation Study

1997 ◽  
Vol 1590 (1) ◽  
pp. 80-88 ◽  
Author(s):  
Ramon F. Bonaquist ◽  
Walaa S. Mogawer
Keyword(s):  
Research Program ◽  
Fatigue Cracking ◽  
Heavy Vehicle ◽  
Full Scale Test ◽  
Program Staff ◽  
Vehicle Loading ◽  
Testing Facility ◽  
Scale Test ◽  
Pavement Testing ◽  
Highway Research

Since 1986, FHWA has been performing accelerated pavement tests at its Pavement Testing Facility (PTF) located on the grounds of the Turner-Fairbank Highway Research Center. At this laboratory, FHWA uses two accelerated loading facility pavement testing machines to simulate the effects of heavy vehicle loading on full-scale test pavements. In 1992, FHWA, with help from Strategic Highway Research Program staff and contractors, started an experiment to validate selected aspects of the Superpave binder specification using accelerated pavement tests. Twelve test lanes with 48 individual test sites were constructed at the PTF in 1993. The results of accelerated pavement tests on these pavements will be used to validate the Superpave binder parameters for rutting and fatigue cracking.

Correlation of Superpave G*/Sin δ with Rutting Test Results from Accelerated Loading Facility

1998 ◽  
Vol 1630 (1) ◽  
pp. 53-61 ◽  
Author(s):  
James A. Sherwood ◽  
Nathaniel L. Thomas ◽  
Xicheng Qi
Keyword(s):  
Data Analysis ◽  
Predictive Models ◽  
Laboratory Tests ◽  
Fatigue Cracking ◽  
Full Scale ◽  
Test Results ◽  
Testing Facility ◽  
Pavement Testing ◽  
Analysis System ◽  
Highway Research

In 1992, FHWA initiated a Superpave validation study by utilizing the Accelerated Loading Facility (ALF) at the Turner-Fairbank Highway Research Center in McLean, Virginia. The study focused on the validation of the concepts, tests, and predictive models underlying the Superpave binder specifications and mixture analysis system. Twelve full-scale pavement lanes with 48 test sites were constructed at the FHWA Pavement Testing Facility in 1993. Pavement testing with the ALF started in late spring of 1994. The results of accelerated full-scale pavement tests in conjunction with extensive laboratory tests will be used to validate the Superpave binder parameters for rutting and fatigue cracking. Presented in this paper are the results of rutting tests and some of the data analysis completed through June 1997.

scholarly journals Um estudo experimental sobre os afundamentos nas trilhas de rodas de pavimentos delgados com basaltos alterados

TRANSPORTES ◽  
1999 ◽  
Vol 7 (1) ◽  
Author(s):  
Washington Peres Núnez ◽  
Jorge Augusto Ceratti ◽  
Suyen Nakahara ◽  
José Augusto De Oliveira
Keyword(s):  
Southern Brazil ◽  
Full Scale Test ◽  
Porto Alegre ◽  
Data Set ◽  
Traffic Characteristics ◽  
Testing Facility ◽  
Scale Test ◽  
Pavement Testing ◽  
E 32 ◽  
Significant Data

<p>Este trabalho apresenta os resultados de um estudo em verdadeira grandeza sobre afundamentos nas trilhas de roda em pavimentos delgados com bases de basaltos alterados. Um simulador linear de tráfego aplicou mais de 267.000 ciclos de carga, variáveis entre 82 e 130 kN, a cinco pistas experimentais construídas na Área de Pesquisas e Testes de Pavimentos, localizada em Porto Alegre. As estruturas ensaiadas continham bases com espessuras de 16, 21 e 32 cm, construídas com basaltos alterados de duas procedências distintas. Um total de 4.148 flechas, medidas periodicamente, forneceram um conjunto de dados consistente para uma análise estatística significativa. A evolução das flechas mostrou depender das características do tráfego e das estruturas dos pavimentos. Considerando os afundamentos nas trilhas de roda como causa da degradação de pavimentos delgados e uma flecha de 25 mm como critério de ruptura, calcularam-se fatores de equivalência de carga, através de uma análise de confiabilidade.</p><p>ABSTRACT</p><p>This paper presents the results of a study of rutting of thin pavements where weathered basalts were used as base layers. A linear traffic simulator applied more than 267,000 axle loads, ranging from 82 to 130 kN, to five full-scale test sections built in a Pavement Testing Facility located in Porto Alegre (Southern Brazil). Two different weathered basalts and three base thicknesses (16 cm; 21 cm and 32 cm) were used. A total of 4,148 measurements of rut depth, made at intervals, provided a statistically significant data set. Rutting evolution showed to depend not only on traffic characteristics but also on pavement structure. Considering rutting as major failure cause of thin pavements and a rut depth of 25 mm as terminal criterion, load equivalence factors were calculated, by means of a reliability analysis.</p>

Full-Scale Test on Coupled Thermo-Hydro-Mechanical Processes in Engineered Barrier System

1994 ◽  
Vol 1 (1) ◽  
pp. 77-83
Author(s):  
Yoshiji Moro ◽  
Tomoo Fujita ◽  
Takeshi Kanno ◽  
Akira Kobayashi
Keyword(s):  
Full Scale ◽  
Full Scale Test ◽  
Scale Test ◽  
Engineered Barrier

The assessment of particulate matter (PM2.5) removal efficiency on air cleaner products through full scale test in Korea

2019 ◽  
Vol 18 (1) ◽  
pp. 76-80 ◽  
Author(s):  
Kichul Kim ◽  
Pil-Ju Park ◽  
Soomi Eo ◽  
Seungmi Kwon ◽  
Kwangrae Kim ◽  
...  
Keyword(s):  
Particulate Matter ◽  
Removal Efficiency ◽  
Full Scale ◽  
Full Scale Test ◽  
Air Cleaner ◽  
Scale Test

Predicting Roof Diaphragm and Endwall Stiffness From Full-Scale Test Results of a Metal-Clad, Post-Frame Building

1992 ◽  
Vol 35 (3) ◽  
pp. 977-985 ◽  
Author(s):  
K. G. Gebremedhin ◽  
J. A. Bartsch ◽  
M. C. Jorgensen
Keyword(s):  
Full Scale ◽  
Test Results ◽  
Full Scale Test ◽  
Frame Building ◽  
Scale Test

Accelerated testing of super lightweight UHPC waffle deck under heavy vehicle simulator

2021 ◽  
Vol 16 (2-3) ◽  
pp. 61-74
Author(s):  
Sahar Ghasemi ◽  
Amir Mirmiran ◽  
Yulin Xiao ◽  
Kevin Mackie
Keyword(s):  
High Performance ◽  
Failure Modes ◽  
High Performance Concrete ◽  
High Strength ◽  
Heavy Vehicle ◽  
Wheel Load ◽  
Element Analysis ◽  
Vehicle Simulator ◽  
Pavement Testing ◽  
Heavy Vehicle Simulator

A super lightweight deck can enhance load rating and functionality of a bridge, especially those identified as structurally deficient. This study was aimed to develop and experimentally validate a novel bridge deck as an ultra-lightweight low-profile waffle slab of ultra-high-performance concrete (UHPC) with either carbon fiber reinforced polymer (CFRP) or high strength steel (HSS) reinforcement. The proposed system lends itself to accelerated bridge construction, rapid deck replacement in bridges with load restrictions, and bridge widening applications without the need to replace girders. Performance and failure modes of the proposed deck were initially assessed through extensive lab experiments and finite element analysis, which together confirmed that the proposed deck panel meets the AASHTO LRFD requirements. The proposed deck system is not susceptible to punching shear of its thin slab and fails in a rather ductile manner. To evaluate its long-term performance, the system was further tested under the dynamic impact of wheel load at the Accelerated Pavement Testing (APT) facility of the Florida Department of Transportation using a Heavy Vehicle Simulator (HVS).

Numerical evaluation of contaminants mixing uniformity in a full-scale test chamber with mixing fan

2020 ◽  
pp. 1420326X2097902
Author(s):  
Hai-Xia Xu ◽  
Yu-Tong Mu ◽  
Yin-Ping Zhang ◽  
Wen-Quan Tao
Keyword(s):  
Concentration Distribution ◽  
Test Chamber ◽  
Full Scale ◽  
Numerical Results ◽  
Test Method ◽  
Test Accuracy ◽  
Full Scale Test ◽  
Concentration Region ◽  
Airflow Field ◽  
Scale Test

Most existing models and standards for volatile organic compounds emission assume that contaminants are uniform in the testing devices. In this study, a three-dimensional transient numerical model was proposed to simulate the mass transport process based on a full-scale test chamber with a mixing fan, and the airflow field and contaminants concentration distribution were obtained within the chamber under airtight and ventilated conditions. The model was validated by comparing the numerical results with experimental data. The numerical results show that the contaminant source position and the airflow field characteristics have significant impact on the contaminant mixing, and the fan rotation has an important role in accelerating mixing. In the initial mixing stage, the concentration distribution is obviously uneven; as the mixing progresses, it gradually reaches acceptable uniformity except for some sensitive regions, such as high concentration region at the injection point of the contaminants and low concentration region at the air inlet. To ensure test accuracy, the monitor should avoid above sensitive regions; and some special regions are recommended where contaminant concentration uniformity can be reached sooner. The ventilated chamber results indicate that the mixture of contaminants in the chamber is actually better than the results shown by conventional test method.

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