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Showing 1 to 15 of 15 for “"Freeze-thaw durability"”.
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Freeze-Thaw Durability of Pervious Concrete
… on this need for additional research on the durability of pervious concrete in cold regions, the objective of this research was to evaluate the resistance of pervious concrete to degradation during freeze-thaw cycling under different soil clogging and water saturation conditions. The …
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Freeze-thaw durability of high strength silica fume concrete
… with and without entrained air, were tested for freeze-thaw durability in accordance with ASTM C666, procedure A (freezing and thawing in water). In addition, another set of similar specimens were moist cured for 28 days instead of 14 days and tested in accordance with ASTM C666 , Procedure A to …
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Effect of Stress on Freeze-Thaw Durability of Concrete Bridge Decks
Made available in DSpace on 2014-12-10T17:25:46Z (GMT). No. of bitstreams: 1 6910650.pdf: 6703096 bytes, checksum: 3dcb99491935ccf2e581b3f4a29047e9 (MD5) Previous issue date: 1968
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EFFECT OF CRACK-REDUCING TECHNOLOGIES AND SUPPLEMENTARY CEMENTITIOUS MATERIALS ON SETTLEMENT CRACKING OF PLASTIC CONCRETE AND DURABILITY PERFORMANCE OF HARDENED CONCRETE
… materials on plastic settlement cracking and the durability of concrete subjected to freezing and thawing were evaluated. The study of settlement cracking included 86 concrete mixtures containing internal curing (IC), a shrinkage reducing admixture (SRA), optimized and non-optimized aggregate …
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Short & long term properties of self-consolidating concrete incorporating fly ash and local aggregate
… it is important to examine the mechanical and durability properties of SCC to gain insights for the design and implementation of SCC in structures. This thesis presents the mechanical and durability experiments used for characterization and acceptance of SCC. Because there are many normally …
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Exploratory study on high-performance concrete for bridge decks in West Virginia
… were compressive strength, drying shrinkage, freeze-thaw durability and chloride permeability, which were not affected much by using higher fly ash or slag content. However, when using higher quantity of slag (35%), the chloride permeability was reduced by nearly 20%. Thus, in future studies, …
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Evaluation of lower quality recycled PCCP for Portland Cement Treated Base (PCTB)
… treated base (PCTB). KDOT currently practices a freeze-thaw method that includes 90 days of curing and a maximum of 660 freeze-thaw cycles to determine the durability of its concrete pavements and bases. An experimental study was conducted to determine if lower quality RCA would be an adequate …
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Freeze-Thaw Resistance and Microstructural Characteristics of Concretes Containing Pozzolans
… and to assess the effects of such pozzolans on freeze-thaw durability, air void system and microstructure of hardened concrete. Cement was partially replaced by various quantities of the pozzolanic materials. The results demonstrated that the increase in workability attributed to the …
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Evaluation of the Impact of Anti-Icing Solution on Concrete Durability
… the increased number of cycles of freezing and thawing) but it is also seen by transportation agencies as not so responsible and sustainable practice in terms of environmental impact, maintenance and infrastructure damage. The process of anti-icing works through the application of the liquid …
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Steam Cured Self-Consolidating Concrete and the Effects of Limestone Filler
… filler on the mechanical properties and durability performance of self-consolidating concrete designed and cured for precast/prestressed applications. This study investigates the role of limestone filler on the hydration kinetics, mechanical properties (12 hours to 300 days), …
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Engineering Performance of Polymer Amended Soils
… strength tests and direct shear tests; durability through freeze-thaw and wet-dry durability tests; and stiffness through resilient modulus tests and through interpretation of the unconfined compression and direct shear test results.</p> <p>The addition of polymer altered the optimum …
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Fractionated reclaimed asphalt pavement as a coarse aggregate replacement in a ternary blended concrete pavement
… comprehensive effect on the fresh, hardened, and durability properties of a single source of FRAP in concrete at various replacement levels. In this study, as the FRAP content increased, it was found that the workability increased (even with lower water reducing admixture dosages), the unit weight …
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Microstructure characterization of foamed cement and concrete
Freeze-thaw deterioration of concrete is a major durability issue in cold climates. Air-entraining admixtures are used to create a network of fine bubbles that enhance frost resistance. Experience has shown that fresh air content alone cannot predict the effectiveness of the entrained air system. …
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Admixture compatibility and freeze-thaw resistance of concrete prepared using commercially produced limestone calcined clay cements
Admixture compatibility and fresh, hardened, and durability properties of mortars and concrete prepared using commercially produced limestone calcined clay cements (LC3s) were evaluated during this study. Incompatibility was evaluated for commercially available high range water reducers (HRWRs) and …
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Development and performance of self-healing and self-immune soil-cement systems subjected to freeze-thaw cycles
… soil-cement systems are vulnerable to cyclic freeze-thaw deterioration. The engineering properties of soil-cement systems, such as strength and permeability, can be substantially degraded under the action of freeze-thaw cycles. This durability problem substantially impairs the sustainability …