The alkali-aggregate reaction (AAR) is that alkali ions from cement orenvironment react with reactive constituents of aggregates to form expansivematerials that produce expansive stress resulting in expansion or cracking of concretestructures.是什么意思_The alkali-aggregate reaction (AAR) is that alkali ions from cement orenvironment react with reactive constituents of aggregates to form expansivematerials that produce expansive stress resulting in expansion or cracking of concretestructures.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句