An Introduction to Consolidation, Finishing and Curing Portland Cement Concrete Paving for Professional Engineers PDF Download
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Author: J. Paul Guyer, P.E., R.A.
Publisher: Guyer Partners
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 40
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Book Description
Introductory technical guidance for civil engineers and other professional engineers and construction managers interested in portland cement concrete pavement for streets and highways. Here is what is discussed: 1. CONSOLIDATION, 2. FINISHING, TEXTURING AND EDGING, 3. CURING AND PAVEMENT PROTECTION.
Author: J. Paul Guyer, P.E., R.A.
Publisher: Guyer Partners
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 40
Get Book Here
Book Description
Introductory technical guidance for civil engineers and other professional engineers and construction managers interested in portland cement concrete pavement for streets and highways. Here is what is discussed: 1. CONSOLIDATION, 2. FINISHING, TEXTURING AND EDGING, 3. CURING AND PAVEMENT PROTECTION.
Author: J. Paul Guyer, P.E., R.A.
Publisher: Guyer Partners
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 412
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Book Description
Introductory technical guidance for civil engineers and construction managers interested in design and construction of pavement for streets and highways. This guidance comes in two volumes. This volume contains the following: 15. PERFORMANCE PROBLEMS WITH PAVEMENTS 1 16. CONSOLIDATION, FINISHING AND CURING PORTLAND CEMENT CONCRETE PAVING 17. CONSTRUCTION AND CONTRACTION JOINTS IN PORTLAND CEMENT CONCRETE PAVEMENT 18. MATERIALS, PRODUCTION AND MIXING FOR PORTLAND CEMENT PAVEMENT 19. PERMEABLE CONCRETE PAVEMENT 20. REINFORCEMENT AND LOAD TRANSFER FOR PORTLAND CEMENT CONCRETE PAVEMENT 21. ELASTIC LAYERED METHODS OF PORTLAND CEMENT CONCRETE OVERLAY PAVEMENT DESIGN165 22. RESIN MODIFIED PAVEMENT 23. RIGID PAVEMENT DESIGN 24. REPAIR OF RIGID PAVEMENTS 25. SOIL STABILIZATION FOR PAVEMENTS 26. CONSTRUCTION METHODS FOR SOIL STABILIZED PAVEMENTS 27. TACK COAT FOR PAVEMENT.
Author: Shane Tymkowicz
Publisher:
ISBN:
Category : Pavements, Concrete
Languages : en
Pages : 108
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Book Description
The Iowa Department of Transportation has discovered an increase in the occurrence of excessively vibrated portland cement concrete (PCC) pavements. The overconsolidation of PCC pavements has been observed in several projects across the state. Overconsolidation is also believed to be a factor in acceleration of premature deterioration of at least two pavement projects in Iowa. To address the problem, a research project in 1995 documented the vibratory practices of PCC slipform paving in Iowa in order to determine the effect of vibration on consolidation and air content of pavement. Paver speed, vibrator frequency, and air content relative to the location of the vibrator were studied. The study concluded that the Iowa Department of Transportation specification of 5,000 to 8,000 vibrations per minute (vpm) for slipform pavers is effective for normal paver speeds on the three projects that were examined. Excessive vibration was clearly identified on one project where a vibrator frequency of 12,000 vpm was discovered. When the paver speed was reduced to half the normal speed, hard air contents indicate that excessive vibration was beginning to occur in the localized area immediately surrounding the vibrator at a frequency of 8,000 vpm. The study also indicates that the radius of influence of the vibrators is smaller than has been claimed.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 704
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 838
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Book Description
Author: United States. Federal Highway Administration
Publisher:
ISBN:
Category : Highway research
Languages : en
Pages : 516
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Book Description
Author:
Publisher:
ISBN:
Category : Aggregates (Building materials)
Languages : en
Pages : 220
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Book Description
Author: United States. Army. Corps of Engineers
Publisher:
ISBN:
Category : Concrete
Languages : en
Pages : 120
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Book Description
Author:
Publisher:
ISBN:
Category : Bridges
Languages : en
Pages : 688
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Book Description
Author:
Publisher:
ISBN:
Category : Concrete
Languages : en
Pages : 230
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Book Description
This study evaluated the impacts of construction on the air content and air-void system structure of Portland cement concrete pavements. The primary intent was to quantify the air content of fresh concrete before and after it has gone through the slipform paver. The air-void system parameters of hardened concrete were then assessed using cast and extracted core specimens. The results of the air content testing on fresh concrete and the concrete cylinder specimens cast in the field suggested that there is some loss of air as the concrete passes through the paver. Laboratory testing performed on cores extracted from the pavement did not provide any conclusive evidence that entrained air is lost during the slipform paving process. In fact, many of the extracted cores had measured air content values that were much higher than the specification requirement. If excessive, this could result in increased permeability and low-strength related issues. Although a rigorous statistical analysis was not performed, the results suggest that the air content testing on fresh concrete is not capturing the true air content of the concrete placed with a slipform paver. The fresh concrete air content is generally lower than the air content measured in the cores.
