Development of Concrete Mechanical Properties Database for Pavement Mechanistic-empirical Input PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Development of Concrete Mechanical Properties Database for Pavement Mechanistic-empirical Input PDF full book. Access full book title Development of Concrete Mechanical Properties Database for Pavement Mechanistic-empirical Input by Davis Kenneth Wing. Download full books in PDF and EPUB format.
Author: Davis Kenneth Wing
Publisher:
ISBN:
Category :
Languages : en
Pages : 308
Get Book Here
Book Description
Traditionally, pavements have been designed using empirical relationships with equations derived from observed pavement failures. Recently, the design of pavements using mechanistic approaches based on known material properties of pavement materials has become an industry expectation. Specifically, a program, AASHTOWare's Pavement ME, incorporates both mechanistic and empirical understandings of pavements in order to design and predict long-term pavement distresses. This thesis aims to develop a concrete materials database for mechanical properties specific to Georgia's rigid pavements. This database includes laboratory tested values of compressive strength, Young's modulus, modulus of rupture, and ultimate shrinkage. Twelve Georgia Department of Transportation (GDOT) approved concrete mixtures using Georgia specific concrete materials were batched, tested, and analyzed for these properties. Additionally, this thesis investigates which of these properties are most critical in rigid pavement design through sensitivity analysis conducted with Pavement ME at Input Level's 1, 2, and 3. Ultimately, this study provides design recommendations for critical mechanical properties as well as guidance for which Input Level to use for the design of Georgia rigid pavements.
Author: Davis Kenneth Wing
Publisher:
ISBN:
Category :
Languages : en
Pages : 308
Get Book Here
Book Description
Traditionally, pavements have been designed using empirical relationships with equations derived from observed pavement failures. Recently, the design of pavements using mechanistic approaches based on known material properties of pavement materials has become an industry expectation. Specifically, a program, AASHTOWare's Pavement ME, incorporates both mechanistic and empirical understandings of pavements in order to design and predict long-term pavement distresses. This thesis aims to develop a concrete materials database for mechanical properties specific to Georgia's rigid pavements. This database includes laboratory tested values of compressive strength, Young's modulus, modulus of rupture, and ultimate shrinkage. Twelve Georgia Department of Transportation (GDOT) approved concrete mixtures using Georgia specific concrete materials were batched, tested, and analyzed for these properties. Additionally, this thesis investigates which of these properties are most critical in rigid pavement design through sensitivity analysis conducted with Pavement ME at Input Level's 1, 2, and 3. Ultimately, this study provides design recommendations for critical mechanical properties as well as guidance for which Input Level to use for the design of Georgia rigid pavements.
Author: American Association of State Highway and Transportation Officials
Publisher: AASHTO
ISBN: 156051423X
Category : Pavements
Languages : en
Pages : 218
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 0
Get Book Here
Book Description
"Material characterization is a critical component of modern day pavement analysis, design, construction, quality control/quality assurance, management, and rehabilitation. At each stage during the life of a project, the influence of several fundamental engineering material parameters on the long-term performance of the pavement can be predicted using advanced tools like the American Association of State Highway and Transportation Officials Mechanistic-Empirical Pavement Design Guide (MEPDG). Consequently, there is a need for more information about material properties, which are addressed only to a limited extent with currently available resources for performing laboratory and field testing. Reliable correlations between material parameters and index properties offer a cost-effective alternative and are equivalent to the level 2 MEPDG inputs. The Long-Term Pavement Performance (LTPP) database provides data suitable for developing predictive models for Portland cement concrete (PCC) materials, stabilized materials, and unbound materials, as well as other design-related inputs for the MEPDG. This user's guide provides a summary of the models developed, describes their applications for specific project conditions, and lists their limitations. The following models are included-- PCC materials: Compressive strength, flexural strength, elastic modulus, tensile strength, and coefficient of thermal expansion; Stabilized materials: Elastic modulus of lean concrete base; Unbound materials: Resilient modulus of fine-grained and coarse-grained materials; and Rigid pavement design features: Pavement curl/wrap effective temperature difference for jointed plain concrete pavement and continuously reinforced concrete pavement designs."--Technical report documentation page.
Author: Chetana Rao
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 76
Get Book Here
Book Description
Material characterization is a critical component of modern day pavement analysis, design, construction, quality control/quality assurance, management, and rehabilitation. At each stage during the life of a project, the influence of several fundamental engineering material parameters on the long-term performance of the pavement can be predicted using advanced tools like the American Association of State Highway and Transportation Officials Mechanistic- Empirical Pavement Design Guide (MEPDG). Consequently, there is a need for more information about material properties, which are addressed only to a limited extent with currently available resources for performing laboratory and field testing. Reliable correlations between material parameters and index properties offer a cost-effective alternative and are equivalent to the level 2 MEPDG inputs. The Long-Term Pavement Performance (LTPP) database provides data suitable for developing predictive models for Portland cement concrete (PCC) materials, stabilized materials, and unbound materials, as well as other design-related inputs for the MEPDG. This user's guide provides a summary of the models developed, describes their applications for specific project conditions, and lists their limitations. The following models are included: PCC materials: Compressive strength, flexural strength, elastic modulus, tensile strength, and coefficient of thermal expansion; Stabilized materials: Elastic modulus of lean concrete base; Unbound materials: Resilient modulus of fine-grained and coarse-grained materials; and Rigid pavement design features: Pavement curl/wrap effective temperature difference for jointed plain concrete pavement and continuously reinforced concrete pavement designs.
Author:
Publisher:
ISBN:
Category : Pavements, Concrete
Languages : en
Pages : 300
Get Book Here
Book Description
Author: Tarun R. Naik
Publisher:
ISBN:
Category : Pavements, Concrete
Languages : en
Pages : 120
Get Book Here
Book Description
Author: M. Shabbir Hossain
Publisher:
ISBN:
Category : Aggregates (Building materials)
Languages : en
Pages : 47
Get Book Here
Book Description
The Virginia Department of Transportation (VDOT) currently follows pavement design procedures for all new and rehabilitated pavements based on the 1993 AASHTO Guide for Design of Pavement Structures. VDOT's Materials Division is in the process of implementing the Mechanistic-Empirical Pavement Design Guide (MEPDG) procedure via AASHTOWare Pavement ME Design software. The MEPDG uses mechanical properties of pavement materials for pavement structural design. The mechanistic-empirical design process presents a major change in pavement design from the 1993 AASHTO design guide. It calculates pavement responses through mechanistic analysis based on inputs such as traffic, climate, and materials properties to predict the pavement damage or distress over time for both asphalt and concrete pavements. The purpose of this study was to evaluate the mechanical properties of cement-treated aggregate (CTA) and recommend values for use in AASHTOWare Pavement ME Design software. The field construction of CTA was monitored, and samples were collected for laboratory determination of the compressive strength, modulus of elasticity, and modulus of rupture. Tests with the falling weight deflectometer were conducted to back-calculate the CTA modulus of elasticity, and field cores were collected for testing compressive strength and modulus of elasticity. CTA gained strength with increases in cement content, and the increase in strength and the strength level depended on the aggregate properties, such as the resilient modulus of unbound aggregate. All measured properties were highly variable. VDOT would need to implement a strength-based CTA design to be able to use the required mechanical properties of CTA in the MEPDG system. The study recommends using a target design 7-day compressive strength of 600 to 800 psi. Such strength corresponds well with VDOT's current pavement design practice in accordance with the 1993 AASHTO design guide. CTA mechanical properties were suggested based on this target strength. Most of the default values presented in the MEPDG are considered reasonable. In addition, the values recommended for use in the MEPDG are 1.5 million psi for modulus of elasticity and 200 psi for modulus of rupture.
Author: M. Shabbir Hossain
Publisher:
ISBN:
Category : Aggregates (Building materials)
Languages : en
Pages : 47
Get Book Here
Book Description
The Virginia Department of Transportation (VDOT) currently follows pavement design procedures for all new and rehabilitated pavements based on the 1993 AASHTO Guide for Design of Pavement Structures. VDOT's Materials Division is in the process of implementing the Mechanistic-Empirical Pavement Design Guide (MEPDG) procedure via AASHTOWare Pavement ME Design software. The MEPDG uses mechanical properties of pavement materials for pavement structural design. The mechanistic-empirical design process presents a major change in pavement design from the 1993 AASHTO design guide. It calculates pavement responses through mechanistic analysis based on inputs such as traffic, climate, and materials properties to predict the pavement damage or distress over time for both asphalt and concrete pavements. The purpose of this study was to evaluate the mechanical properties of cement-treated aggregate (CTA) and recommend values for use in AASHTOWare Pavement ME Design software. The field construction of CTA was monitored, and samples were collected for laboratory determination of the compressive strength, modulus of elasticity, and modulus of rupture. Tests with the falling weight deflectometer were conducted to back-calculate the CTA modulus of elasticity, and field cores were collected for testing compressive strength and modulus of elasticity. CTA gained strength with increases in cement content, and the increase in strength and the strength level depended on the aggregate properties, such as the resilient modulus of unbound aggregate. All measured properties were highly variable. VDOT would need to implement a strength-based CTA design to be able to use the required mechanical properties of CTA in the MEPDG system. The study recommends using a target design 7-day compressive strength of 600 to 800 psi. Such strength corresponds well with VDOT's current pavement design practice in accordance with the 1993 AASHTO design guide. CTA mechanical properties were suggested based on this target strength. Most of the default values presented in the MEPDG are considered reasonable. In addition, the values recommended for use in the MEPDG are 1.5 million psi for modulus of elasticity and 200 psi for modulus of rupture.
Author:
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 6
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 84
Get Book Here
Book Description
Introduction -- Mechanistic-Empirical Pavement Design Guide and AASHTOWare Pavement ME Design (TM) Software Overview -- Survey of Agency Pavement Design Practices -- Common Elements of Agency Implementation Plans -- Case Examples of Agency Implementation -- Conclusions.
