Determination of Coefficient of Thermal Expansion Effects on Louisiana's PCC Pavement Design PDF Download
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Author: Hak-Chul Shin
Publisher:
ISBN:
Category : Concrete construction
Languages : en
Pages : 80
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Book Description
With the development of the Mechanistic Empirical Pavement Design Guide (MEPDG) as a new pavement design tool, the coefficient of thermal expansion (CTE) is now considered a more important design parameter in estimating pavement performance including cracking, faulting, and international roughness index (IRI). This study was conducted to measure typical CTE values of Portland cement concrete (PCC) pavements having various aggregates used in Louisiana and to investigate the relationship between CTE and other critical variables such as aggregate types, age of concrete, dimension of specimen, amount of course aggregate in mixture, relative humidity, and concrete mechanical properties. AASHTO TP 60-00 was used for measuring concrete CTE and a recently new standard test method, AASHTO T 336-09, was adopted to replace the TP 60-00.
Author: Hak-Chul Shin
Publisher:
ISBN:
Category : Concrete construction
Languages : en
Pages : 80
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Book Description
With the development of the Mechanistic Empirical Pavement Design Guide (MEPDG) as a new pavement design tool, the coefficient of thermal expansion (CTE) is now considered a more important design parameter in estimating pavement performance including cracking, faulting, and international roughness index (IRI). This study was conducted to measure typical CTE values of Portland cement concrete (PCC) pavements having various aggregates used in Louisiana and to investigate the relationship between CTE and other critical variables such as aggregate types, age of concrete, dimension of specimen, amount of course aggregate in mixture, relative humidity, and concrete mechanical properties. AASHTO TP 60-00 was used for measuring concrete CTE and a recently new standard test method, AASHTO T 336-09, was adopted to replace the TP 60-00.
Author: Hak-Chul Shin
Publisher:
ISBN:
Category : Concrete construction
Languages : en
Pages : 2
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Book Description
PROBLEM: The coefficient of thermal expansion (CTE) is a fundamental property of construction materials such as steel and concrete. Although the CTE of steel is a well-defined constant, the CTE of concrete varies substantially with aggregate type, mix design, and moisture condition. The Mechanistic-Empirical Pavement Design Guide (MEPDG) demonstrates the importance of CTE in design and performance of Portland cement concrete (PCC) pavements. It is known that CTE has significant effects on slab cracking, curling and warping, joint faulting, and pavement smoothness. A better understanding of CTE effects on performance of Louisiana's PCC pavements is needed. OBJECTIVE: After summarizing the current practice for measuring CTE of PCC, the researcher will determine the variance of CTE for concrete mixes used in Louisiana and provide recommendations for use of CTE in PCC pavement design. Additionally, the current specification for maximum spacing of transverse joints in jointed plain concrete pavement (JPCP) will be evaluated.
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Author: Hak-Chul Shin
Publisher:
ISBN:
Category : Concrete construction
Languages : en
Pages : 80
Get Book Here
Book Description
With the development of the Mechanistic Empirical Pavement Design Guide (MEPDG) as a new pavement design tool, the coefficient of thermal expansion (CTE) is now considered a more important design parameter in estimating pavement performance including cracking, faulting, and international roughness index (IRI). This study was conducted to measure typical CTE values of Portland cement concrete (PCC) pavements having various aggregates used in Louisiana and to investigate the relationship between CTE and other critical variables such as aggregate types, age of concrete, dimension of specimen, amount of course aggregate in mixture, relative humidity, and concrete mechanical properties. AASHTO TP 60-00 was used for measuring concrete CTE and a recently new standard test method, AASHTO T 336-09, was adopted to replace the TP 60-00. A calibration factor was developed to convert the CTE values measured by AASHTO TP 60-00 to that of the new standard testing method. From the analysis of measured data, it was found that aggregate types, coarse aggregate proportion, and relative humidity have a significant influence on CTE. This finding was confirmed with a statistical analysis of variance (ANOVA). CTE tests and mechanical property tests were also performed at different ages to provide input data for Level 1 design of MEPDG. Based on the results of the MEPDG analysis, current maximum joint spacing [20 ft. (6.1 m)] in jointed plain concrete pavement (JPCP) can be adjusted to 15 or 18 ft. (4.6 or 5.5 m) when Kentucky limestone is used as a coarse aggregate.
Author: Louisiana Transportation Research Center
Publisher:
ISBN:
Category : Transportation
Languages : en
Pages : 26
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Book Description
Author: Kim Sung-Hee
Publisher:
ISBN:
Category : Concrete construction
Languages : en
Pages : 59
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Book Description
Author:
Publisher:
ISBN:
Category : Bridges
Languages : en
Pages : 674
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Book Description
Author: American Association of State Highway and Transportation Officials
Publisher: AASHTO
ISBN: 156051423X
Category : Pavements
Languages : en
Pages : 218
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Book Description
Author:
Publisher:
ISBN:
Category : Air travel
Languages : en
Pages : 690
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Book Description
Author:
Publisher: AASHTO
ISBN: 1560514493
Category : Technology & Engineering
Languages : en
Pages : 202
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Book Description
This guide provides guidance to calibrate the Mechanistic-Empirical Pavement Design Guide (MEPDG) software to local conditions, policies, and materials. It provides the highway community with a state-of-the-practice tool for the design of new and rehabilitated pavement structures, based on mechanistic-empirical (M-E) principles. The design procedure calculates pavement responses (stresses, strains, and deflections) and uses those responses to compute incremental damage over time. The procedure empirically relates the cumulative damage to observed pavement distresses.
Author: Yang Hsien Huang
Publisher:
ISBN: 9780132726108
Category : Pavements
Languages : en
Pages : 775
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Book Description
For one/two-semester, undergraduate/graduate courses in Pavement Design. This up-to-date text covers both theoretical and practical aspects of pavement analysis and design. It includes some of the latest developments in the field, and some very useful computer software-developed by the author-with detailed instructions.
