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Showing 1 to 11 of 11 for “"freeze-thaw resistance"”.
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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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Admixture compatibility and freeze-thaw resistance of concrete prepared using commercially produced limestone calcined clay cements
… and durability properties (drying shrinkage and freeze-thaw resistance) were documented for LC3 concretes using standardized testing procedures. While all concrete mixtures produced satisfied the compressive and flexural strength requirements for paving concrete, concrete produced using one LC3 …
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Evaluating CEN/TS 12390-9 To Assess Concrete for UK Freeze-Thaw Exposure Conditions
… over the performance of these concretes in freeze-thaw environments. This research project investigated the influence of cement type on concretes subjected to freeze-thaw conditions and the correlation between the microstructural properties of concrete and freeze-thaw performance using the …
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Steam Cured Self-Consolidating Concrete and the Effects of Limestone Filler
… chloride permeability, linear shrinkage, sulfate resistance, freeze-thaw resistance and salt scaling resistance) of various self-consolidating concrete mix designs containing 5% silica fume and steam cured at a maximum holding temperature of 55°C. This research also examines the resistance to …
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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 …
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Abrasion resistance of concrete and the use of high performance concrete for concrete railway crossties
This project focused on the abrasion resistance of concrete railway crossties. In the first phase of this project, a series of high performance concrete mixes was developed that utilized different replacement levels of portland cement by silica fume (3%, 7% and 15%), class F fly ash (18%) and slag …
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Performance Enhancement of Concrete Produced with Treated Demolition Waste Aggregates
… of elasticity), durability (water absorption, resistance to freeze-thaw, and resistance to sulphate attack), and the microstructure of recycled aggregate concrete. <br/><br/>The treated recycled aggregate demonstrated an enhanced Aggregate Impact Value of 15% and reduced Water Absorption of 3% …
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The durability of fly ash concrete in marine and softwater environments
… The lower permeability, increased chemical resistance and higher long-term strength of fly ash concrete are expected to improve the concrete durability. In this research the effect of fly ash was investigated with regard, initially to general concrete properties such as bleeding, early set, …
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Macro - and Microstructure Evaluation and Field Applications of Concrete with Recycled Glass Pozzolan
… with GP showed very low permeability and high freeze-thaw resistance, demonstrating undoubtedly better performance than the reference concretes. Chemical and physical properties characterizations were performed on cementitious materials (FA, Slag, GP, and cement), cementitious pastes, and …
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Durability of Cementitious Materials in Arctic Regions: Investigating Freeze-Thaw Damage and Chloride Ingress Diffusion Mechanisms
… coastal region faces durability challenges from freeze-thaw (F-T) cycles and chloride ingress due to seawater and deicing salts, resulting in surface scaling, spalling, and cracking. Climate change exacerbates these issues, particularly in high-latitude areas like Alaska, where rising …
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Deterioro del hormigón sometido a ensayos acelerados de hielo-deshielo en presencia de cloruros
… 1. ABSTRACT Concrete deterioration due to freeze-thaw cycles in the presence of de-icing salts is a frequent cause of problems in concrete bridges and other civil infrastructures in Europe. Concrete damage generated by freeze-thaw cycles can be internal, mainly by cracking and/or external, …