Based on the test results of alkali-aggregate using four cements and six aggregates, preventive effect of low alkali Portland eement on AAR is studied.

• 通过对4种不同碱含量的水泥与六种集料进行的碱-集料反应试验，得出水泥碱含量越低，抑制碱-集料反应的能力越强的结论；