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Resilient Modulus Of Freeze Thaw Affected Granular Soils For Pavement Design And Evaluation Part 1 Laboratory Tests On Soils From Winchendon Massachusetts Test Sections
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Book Synopsis Resilient Modulus of Freeze - Thaw Affected Granular Soils for Pavement Design and Evaluation, Part 1: Laboratory Tests on Soils from Winchendon, Massachusetts, Test Sections by : Cold Regions Research and Engineering Laboratory (U.S.)
Download or read book Resilient Modulus of Freeze - Thaw Affected Granular Soils for Pavement Design and Evaluation, Part 1: Laboratory Tests on Soils from Winchendon, Massachusetts, Test Sections written by Cold Regions Research and Engineering Laboratory (U.S.) and published by . This book was released on 1986 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work is the first of a series of four reports about laboratory and field testing of various granular road and airfield subgrades. This report details the acquisition, testing and analysis of six soils from a test site in Winchendon, Massachusetts. Repeated load triaxial tests were done on frozen and thawed soils to characterize the variations in their resilient properties through out the seasons. Linear regression yielded empirical equations relating the resilient modulus to applied stress, unfrozen water content (for frozen soils), moisture tension (for thawed soils) and density. Equipment and test procedures (given in detail) were developed that allowed simulation in the laboratory of the gradual recovery of stiffness that occurs in the field after thawing. The resilient moduli were strongly dependent on soil state, dropping at least two orders of magnitude upon thawing. For all soils the moduli increased with increasing confining stress, generally decreased with increasing principal stress ratio, and increased with increasing moisture tension levels. The resilient moduli increased by a factor of approximately two as the materials recovered from the effects of a freeze-thaw cycle. This recovery process is well modeled as a function of soil moisture tension level. The stress sensitivity did not appear to be a function of the soil moisture tension level. The report also includes tabulations of all the repeated load triaxial test data.
Book Synopsis Resilient Modulus of Freeze - Thaw Affected Granular Soils for Pavement Design and Evaluation - Part 2: Field Validation Tests at Winchendon, Massachusetts, Test Sections by : Cold Regions Research and Engineering Laboratory (U.S.)
Download or read book Resilient Modulus of Freeze - Thaw Affected Granular Soils for Pavement Design and Evaluation - Part 2: Field Validation Tests at Winchendon, Massachusetts, Test Sections written by Cold Regions Research and Engineering Laboratory (U.S.) and published by . This book was released on 1986 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stress-deformation data for six granular soils ranging from sandy silt to dense-graded crushed stone were obtained from in-situ tests and laboratory test. Surface deflections were measured in the in-situ tests, with repeated-load plate-bearing and falling-weight deflectometer equipment, when the six granular soils were frozen, thawed, and at various stages of recovery from thaw weakening. The measured deflections were used to judge the validity of procedures developed for laboratory triaxial tests to determine nonlinear resilient moduli of specimens in the frozen, thawed, and recovering states. The validity of the nonlinear resilient moduli, expressed as functions of externally applied stress and moisture tension, was confirmed by using the expressions to calculate surface deflections that were found to compare well with deflections measured in the in-situ tests. The tests on specimens at various stages of recovery are especially significant because they show a strong dependence of the resilient modulus on moisture tension, leading to the conclusion that predictions or in-situ measurements of moisture tension can be used to evaluate expected seasonal variation in the resilient modulus of granular soils.
Book Synopsis Resilient Modulus of Freeze-thaw Affected Granular Soils for Pavement Design and Evaluation by :
Download or read book Resilient Modulus of Freeze-thaw Affected Granular Soils for Pavement Design and Evaluation written by and published by . This book was released on 1987 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book CRREL Report written by and published by . This book was released on 1996 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Resilient Modulus of Freeze-thaw Affected Granular Soils for Pavement Design and Evaluation by :
Download or read book Resilient Modulus of Freeze-thaw Affected Granular Soils for Pavement Design and Evaluation written by and published by . This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Resilient Modulus Testing of Materials from Mn/ROAD, Phase 1 by :
Download or read book Resilient Modulus Testing of Materials from Mn/ROAD, Phase 1 written by and published by DIANE Publishing. This book was released on 1996 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Resilient Modulus of Freeze-thaw Affected Granular Soils for Pavement Design and Evaluation by :
Download or read book Resilient Modulus of Freeze-thaw Affected Granular Soils for Pavement Design and Evaluation written by and published by . This book was released on 1986 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Special Report written by and published by . This book was released on 1996 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1987 with total page 938 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Technical Reports Awareness Circular : TRAC. by :
Download or read book Technical Reports Awareness Circular : TRAC. written by and published by . This book was released on 1987-03 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Resilient Modulus Testing of Materials from Mn/ROAD, Phase 1 by :
Download or read book Resilient Modulus Testing of Materials from Mn/ROAD, Phase 1 written by and published by . This book was released on 1996 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Frost Action Predictive Techniques for Roads and Airfields by :
Download or read book Frost Action Predictive Techniques for Roads and Airfields written by and published by . This book was released on 1986 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Modeling of Mn/ROAD Test Sections with the CRREL Mechanistic Pavement Design Procedure by : Susan R. Bigl
Download or read book Modeling of Mn/ROAD Test Sections with the CRREL Mechanistic Pavement Design Procedure written by Susan R. Bigl and published by DIANE Publishing. This book was released on 1996 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: The U.S. Army Cold Regions Research and Engineering Laboratory is developing a mechanistic pavement design procedure for use in seasonal frost areas. The procedure was used to predict pavement performance of some test sections under construction at the Mn/ROAD facility. Simulations were conducted in three phases, investigating the effects on predictions of water table position, subgrade characteristics, asphalt model, and freeze season characteristics. The procedure predicted significantly different performance by the different test sections and highly variable results depending on the performance model applied. The simulated performance of the tests sections also was greatly affected by the subgrade conditions, e.g., density, soil moisture, and water table depth. In general, predictions for the full depth asphalt sections indicate that they will not fail due to cracking, but two of the three criteria for subgrade rufting indicate failure before the five or 10 year design life of the sections. Conventional sections are predicted not to fail due to subgrade rutting; however, sections including the more frost susceptible bases in their design are predicted to fail due to asphalt cracking relatively early in their design life, and sections with nonfrost susceptible bases are predicted to fail towards the end of the design life.
Download or read book Transportation Research Record written by and published by . This book was released on 1992 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book HRIS Abstracts written by and published by . This book was released on 1988 with total page 956 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Material Testing and Initial Pavement Design Modeling by : Susan R. Bigl
Download or read book Material Testing and Initial Pavement Design Modeling written by Susan R. Bigl and published by . This book was released on 1996 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Modeling of Mn/ROAD Test Sections with the CRREL Mechanistic Pavement Design Procedure by : Susan R. Bigl
Download or read book Modeling of Mn/ROAD Test Sections with the CRREL Mechanistic Pavement Design Procedure written by Susan R. Bigl and published by . This book was released on 1996 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
