Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"Freezing and Thawing Cycles"”.
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The effects of freezing on the material properties and structure of bovine medial meniscus.
Menisci serve as shock absorbers and stabilizers in the knee. Bovine meniscus is often used as a model for human meniscus because it is inexpensive and readily available. During experiments, the bovine menisci are usually frozen and thawed repeatedly to maintain freshness through specimen transport …
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Mechanistic service life prediction of rigid pavement joint sealant: a new laboratory testing technique
… applied cyclic shear deflection to a sealant sandwiched between two 51 x 51 x 51 mm portland cement concrete (PCC) cubes at a constant horizontal deflection. The new testing method simulates field conditions where shear deflection is caused by vehicular loading, while horizontal deflection is …
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Environmental Influence on the Bond Between a Polymer Concrete Overlay and an Aluminum Substrate
… concrete (LMC), low slump dense concrete (LSDC) and hot-mix asphalt membranes (HMAM) overlays are currently some of the most used rehabilitation methods. Epoxy coated reinforcing steel (ECR) was developed and promoted as a long term corrosion protection method by the Federal Highway …
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Determining the Air Void Parameters of Concrete Using Digital Image Analysis of Polarized Light Micrographs
The ASTM C457 test has long been a standard used to obtain the air void parameters of concrete materials. These air void parameters provide valuable information that has been linked to the performance of concrete under conditions such as freezing and thawing cycles. The standard test procedure …
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Nutrient release from winter cover crops exposed to freeze-thaw events
… are widely promoted due to their numerous soil and water quality benefits. However, recent research has highlighted some concerns about the potential leaching of phosphorus (P) and nitrogen (N) from cover crop biomass after cycles of freezing and thawing. These freezing events may cause ice …
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Thermal Energy Storage Aggregate using Low-Cost Organic Phase Change Materials
… in the buildings is crucial. On the other hand, the icing of pavements during cold temperatures represents significant pedestrian and vehicle safety concerns. De-icing salts and other routine winter maintenance activities are intended to improve safety but have considerable cost and …
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The effects of chloride-based deicing chemicals on degradation of portland cement mortars with alkali reactive aggregate
… effects of long-term exposure to deicers, freezing and thawing cycles, and wetting and drying cycles. In order to develop a more comprehensive view of these topics, the present study was conducted in three phases. The focus of the first phase was on studying the effects of the …
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New building materials in structural engineering: “Structural concretes made with Coarse and Fine recycled aggregates”
… head, per year, concrete is the most important and widespread material used in construction worldwide. The Italian code allows the use of waste produced by construction and demolition (C&D) operations to produce recycled aggregates. The great interest, both technical-economic and environmental …
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Mechanical and surface free energy characterization of asphalt concrete for moisture damage detection
… damage causes a severe loss in the strength and durability of asphalt pavements, leading to a major decrease in pavement performance. Hence, many additives are used to mitigate the effect of moisture on AC. The moisture sensitivity of AC depends on many factors, including aggregates, binders, …