Author:
Publisher:
ISBN:
Category : Frost heaving
Languages : en
Pages : 64
Book Description
Frost Action Predictive Techniques for Roads and Airfields
Author:
Publisher:
ISBN:
Category : Frost heaving
Languages : en
Pages : 64
Book Description
Publisher:
ISBN:
Category : Frost heaving
Languages : en
Pages : 64
Book Description
Frost Action Predictive Techniques for Roads and Airfields Vol. I
Author:
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages :
Book Description
Frost Action Predictive Techniques for Roads and Airfields
Author:
Publisher:
ISBN:
Category : Frost heaving
Languages : en
Pages : 45
Book Description
Vol. 1: Findings from a six-year field and laboratory program of frost-action research in four principal areas are summarized. Research on the first topic, frost-susceptibility index tests, led to selection of the Corps of Engineers' frost design soil classification system as a useful method at the simplest level of testing. At a much more complex level, a new freezing test combined with a CBR test after thawing is recommended as an index of susceptibility to both frost heave and thaw weakening. Under the second topic, a soil column and dual gamma system were developed and applied to obtain soil data used in improving and validating a mathematical model of frost heave, the objective of the third research topic.
Publisher:
ISBN:
Category : Frost heaving
Languages : en
Pages : 45
Book Description
Vol. 1: Findings from a six-year field and laboratory program of frost-action research in four principal areas are summarized. Research on the first topic, frost-susceptibility index tests, led to selection of the Corps of Engineers' frost design soil classification system as a useful method at the simplest level of testing. At a much more complex level, a new freezing test combined with a CBR test after thawing is recommended as an index of susceptibility to both frost heave and thaw weakening. Under the second topic, a soil column and dual gamma system were developed and applied to obtain soil data used in improving and validating a mathematical model of frost heave, the objective of the third research topic.
Frost Action Predictive Techniques for Roads and Airfields
Author: Cold Regions Research and Engineering Laboratory (U.S.)
Publisher:
ISBN:
Category : Frost heaving
Languages : en
Pages : 60
Book Description
Publisher:
ISBN:
Category : Frost heaving
Languages : en
Pages : 60
Book Description
Frost Action Predictive Techniques for Roads and Airfields
Author:
Publisher:
ISBN:
Category : Frost heaving
Languages : en
Pages : 45
Book Description
Findings from a six-year yield and laboratory program of frost action research in four principal areas are summarized. Research on the first topic, frost susceptibility index tests, led to selection of the Corps of Engineers frost design soil classification system as a useful method at the simplest level of testing. At a much more complex level, a new freezing test combined with a CBR test after thawing is recommended as an index of susceptibility to both frost heave and thaw weakening. Under the second topic, a soil column and dual gamma system were developed and applied to obtain soil data used in improving and validating a mathematical model of frost heave, the objective of the third research topic. The model was effectively improved, a probabilistic component was added, and it was successfully tested against field and laboratory measurements of frost heave. A thaw consolidation algorithm was added, which was shown to be useful in predicting the seasonal variation in resilient modulus of granular soils, the objective of the fourth topic. A laboratory testing procedure was developed for assessing the resilient modulus of thawed soil at various stages of the recovery process, as a function of the applied stress and the soil moisture tension, which increases as the soil gradually desaturates during recovery. The procedure was validated by means of appropriate analyses of deflections measured on pavements by a falling-weight deflectometer. Frameworks for implementing findings from the principal research topics are outlined. Keywords: Airfields, Freezing thawing, Frost heave, Frozen soil, Resilient modulus, Roads.
Publisher:
ISBN:
Category : Frost heaving
Languages : en
Pages : 45
Book Description
Findings from a six-year yield and laboratory program of frost action research in four principal areas are summarized. Research on the first topic, frost susceptibility index tests, led to selection of the Corps of Engineers frost design soil classification system as a useful method at the simplest level of testing. At a much more complex level, a new freezing test combined with a CBR test after thawing is recommended as an index of susceptibility to both frost heave and thaw weakening. Under the second topic, a soil column and dual gamma system were developed and applied to obtain soil data used in improving and validating a mathematical model of frost heave, the objective of the third research topic. The model was effectively improved, a probabilistic component was added, and it was successfully tested against field and laboratory measurements of frost heave. A thaw consolidation algorithm was added, which was shown to be useful in predicting the seasonal variation in resilient modulus of granular soils, the objective of the fourth topic. A laboratory testing procedure was developed for assessing the resilient modulus of thawed soil at various stages of the recovery process, as a function of the applied stress and the soil moisture tension, which increases as the soil gradually desaturates during recovery. The procedure was validated by means of appropriate analyses of deflections measured on pavements by a falling-weight deflectometer. Frameworks for implementing findings from the principal research topics are outlined. Keywords: Airfields, Freezing thawing, Frost heave, Frozen soil, Resilient modulus, Roads.
Frost Action Predictive Techniques for Airfield and Highway Pavements
Author: Richard L. Berg
Publisher:
ISBN:
Category : Frost heaving
Languages : en
Pages : 22
Book Description
Publisher:
ISBN:
Category : Frost heaving
Languages : en
Pages : 22
Book Description
Technical Reports Awareness Circular : TRAC.
Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 764
Book Description
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 764
Book Description
Monthly Catalog of United States Government Publications
Author:
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ISBN:
Category : Government publications
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages :
Book Description
CRREL Report
Author:
Publisher:
ISBN:
Category : Cold regions
Languages : en
Pages : 486
Book Description
Publisher:
ISBN:
Category : Cold regions
Languages : en
Pages : 486
Book Description
Scientific and Technical Aerospace Reports
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 942
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 942
Book Description