sulfate attack

sulfate attack

A chemical or physical reaction, or both, between sulfates (in ground water or in the soil) and concrete or mortar; primarily damaging to the cement paste matrix; reduced in concrete made with sulfate-resistant cement.
References in periodicals archive ?
2]-cured concrete, bonding elements based on silica and calcium carbonate create a wide range of attractive properties, including mechanical strength, [and] resistance to freeze-thaw deterioration [or] sulfate attack.
The expansive sulfate attack reaction puts stresses on the concrete and can lead to cracking, a loss of the bond between the cement paste and the aggregate and this results in a significant loss of strength.
Materials science of concrete: sulfate attack mechanisms (proc.
Engineered for long-term durability, NewCem slag cement helps structures achieve greater strength potential, reduced permeability, and increased resistance to sulfate attack and alkali silica reaction.
Therefore, this was the main experimental argument to evaluate the performance and durability of geopolymers in other compressive strength tests (resistance to acids and sulfate attack, and resistance to high temperatures).
Sulfate attack and role of silica fume in resisting strength loss, Cement and Concrete Composites 27(1): 65-76.
In the recent years, Geopolymer binders have emerged as a possible alternative to OPC binders due to their reported high early strength and resistance against acid and sulfate attack apart from its environmental friendliness [1].
Influence of silica fume replacement of cement on physical properties and resistance to sulfate attack, Freezing and Thawing, and Alkali-Silica Reactivity, ACI Materials Journal (Technical Paper).
External sulfate attack of concrete is a major problem that can appear in regions where concrete is exposed to soil or water containing sulfates, leading to softening and cracking of the concrete.
A key feature of the overall approach will be the development of a general model relating concrete sorptivity to spalling damage for three common degradation phenomena: sulfate attack, alkali-silica reaction, and freeze-thaw scaling.
Monteleone & McCrory, LLP today announced that an Orange County judge ruled in late December that plaintiffs seeking $5,238,205 in damages in a concrete sulfate attack case failed to demonstrate that the defendant concrete suppliers had supplied defective concrete or that the concrete had subsequently been damaged by external sulfate attack.
Establishing Unified Durability Guidance on Chloride Ions Limits, Freeze-Thaw Performance, and External Sulfate Attack for ACI Documents.