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Showing 1 to 9 of 9 for “"Sulphate attack"”.
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Physical Sulphate Attack on Concrete
Field experience with concrete exposed to sulphates has often shown that concrete can suffer from surface scaling above the ground level caused by physical sulphate attack. This type of attack has been ignored and, in some instances, confused with chemical sulphate attack. In addition, current …
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Sustainable Utilisation of Raw Sewage Sludge (RSS) as a Water Replacement in Cement-Based Materials Containing Unprocessed Fly Ash
… strength, flexural strength, drying shrinkage, sulphate attack and leaching properties. Three series of cement-based materials were studied including mortar mixes with RSS and unprocessed fly ash (Series 1), mortar mixes with RSS and large proportions of unprocessed fly ash (Series 2), and …
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Crack Self-Healing in Alkali-Activated Materials: From Mechanisms to Strategies for Enhancing the Healing Efficiency
… properties and high resistance to acidic and sulphate attacks. Like conventional concrete, AAMs are quasi-brittle materials with low tensile strength, demonstrating susceptibility to cracking. Cracking-initiated deteriorations such as reinforcing steel corrosion, sulphate attack, and …
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Performance Enhancement of Concrete Produced with Treated Demolition Waste Aggregates
… 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% compared to the untreated recycled aggregate …
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A review on the efficiency of different supplementary cementitious materials as a partial replacement for Portland cement in concrete
… and durability properties (freeze-thaw, acid attack, sulphate attack, chloride-induced corrosion, carbonation-induced corrosion, and alkali-silica reaction) of concrete are presented. The review shows that the inclusion of appropriate dosage of these SCMs in concrete or mortar enhances their …
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The impact of natural and synthetic zeolite when used in cementitious based systems
… increased compressive strength, resistance to sulphate attack and favourable leaching properties. However, there has been minimal research carried out on synthetic zeolites in this area in contrast to the abundance of natural zeolite study and notably research considering using zeolites as …
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Encapsulation of Waste in Cementitious Systems for use in Civil Engineering Applications
… also exhibited good resistance to frost action, sulphate attack and tolerated temperatures up to 150oC.<br/><br/>On the possible applicability of the encapsulated plastic concrete in civil engineering applications, the lightweight property of the encapsulated plastic concrete makes it …
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Property Changes and Mechanisms in Lime-Stabilised Kaolinite in the Presence of Metal Sulphates
… over the enormous heaving that can occur when sulphate bearing soils are encountered and, to a lesser degree, the relatively slow strength development which is produced.<br/><br/>Thus, the major objective of this work has been first to establish the fundamental material property changes which …
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Synergistic and Environmental Benefits of Using Cement Kiln Dust With Slag and Fly Ash in Cemented Paste Tailings
… have validated the phenomenon of internal sulphate attack in ordinary Portland cement (CSA Type GU) based cemented paste tailings containing sulphide minerals and have observed secondary gypsum as an ubiquitous phase in such matrices. The secondary gypsum, due to its soft nature and …