Alkali-silica mitigation admixture, methods of making and kits comprising the same

A method of mitigating alkali-silica reaction in a concrete product, the method comprising:

• providing cement, cement clinker, or cement clinker derived material;
• providing an organic or inorganic salt comprising an aluminum, calcium, magnesium, or iron cation;
• mixing the cement, cement clinker, or cement clinker derived material with an amount of the organic or inorganic salt to form a cement mixture;
• adding water and, optionally, aggregates or other concrete additives or both, to the cement mixture to form a fresh concrete mixture having a pH of between about 12.0 and 13.65;
• and
• pouring and curing the fresh concrete mixture to form a concrete product having a pore solution pH that is maintained between about 12.0 and 13.65 over a period of 28 days after forming the fresh concrete;
• wherein the cement, cement clinker, or cement clinker derived material and the organic or inorganic salt are provided in powder or granular form before or after mixing them, but before forming a fresh concrete mixture.

A method of mitigating alkali silica reaction in a concrete product, the method comprising:

• providing cement;
• mixing the cement with an organic or inorganic salt, which provides an aluminum, calcium, magnesium, or iron cation, and water and other concrete ingredients to form a fresh concrete mixture;
• and
• pouring and curing the fresh concrete mixture to form a concrete product with a corresponding pore solution pH of between 12.0 and 13.65.