Global ETD Search
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Showing 1 to 10 of 10 for “"frost heave"”.
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Development of a Frost Heave Test Apparatus
Frost heave damage to roadways costs millions of dollars every year. The need for an improved understanding of the fundamental mechanisms associated with frost heave and methods for efficiently improving frost-susceptible materials prompted the Department of Civil and Environmental Engineering at …
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Experimental investigation of soil volume changes during freezing and thawing
… soils during freezing and thawing, with focus on frost heave and thaw settlement. Ground freezing is a natural phenomenon that affects civil engineering projects, especially in cold regions or where artificial ground freezing (AGF) is employed. Freezing causes water in the soil pores to turn into …
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Assessment of the Tube Suction Test for Identifying Non-Frost-Susceptible Soils Stabilized with Cement
Frost heave is a primary mechanism of pavement distress in cold regions. The distress exhibited is dependent on the frost susceptibility of the soil within the depth of frost penetration, the availability of subsurface water, and the duration of freezing surface temperatures. Cement stabilization …
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Design and Construction of Pavements in Cold Regions: State of the Practice
The effects of frost action introduce many challenges in the design and construction of roadways in cold regions throughout the United States. The penetration of frost into pavement structures can lead to differential frost heave during winter and thaw weakening during spring. Both of these damage …
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An investigation of two periglacial landforms on ignimbrite blockslopes in Kluane National Park and Reserve, Yukon Territory
… periglacial processes such as solifluction and frost heave, the form and relief of which are influenced by slope gradient and availability of fine-grained sediment in the system, leading to diverse spatial patterns, even across the same slopes. This research introduces two novel forms of …
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Fabric and Strength of Clays Stabilized with Lime
… compressive strength, porosity, permeability and frost heave resistance were investigated for cylindrical specimens of a Devonian Red-Marl containing various amounts of lime (2-14 wt%), cured for up to 24 weeks at different temperatures (25, 50 and 75°C) and in different environments (sealed, …
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Subarctic ecosystem responses to climate, catchment and permafrost dynamics in the Holocene
… aspects of the wetland development, permafrost dynamics and associated changes in carbon and nutrient cycling of the Stordalen Mire in northern Sweden. Various ecological and biogeochemical analyses of one peat and two lake sediment sequences were conducted, including analyses of organic …
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The effect of pre-strain on the fracture toughness of line pipe steel
… include reeling, denting, ground movement, frost heave and earthquake loading. The material subjected to high plastic strain, or pre-strain, will have different material properties to those of the ‘virgin’ material. Plastic deformation causes work hardening; the yield strength is increased, …
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Distributed Sensing for Monitoring Cast Iron Pipe Behaviour
The objectives of this thesis were to investigate the material performance and field behaviour of small diameter cast iron water pipes. Exhumed pipes were provided by the Cities of Kingston, Hamilton, and Toronto in Canada. Four of these 150 mm diameter pipe specimens, with a length of 2.2 m, were …
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Evaluation of Laboratory Durability Tests for Stabilized Subgrade Soils
The Portland Cement Association commissioned a research project at Brigham Young University to compare selected laboratory durability tests available for assessing stabilized subgrade materials. Improved understanding of these tests is needed to enable more objective selection of durability tests …