| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain a high durability concrete that improves the freezing damage resistance of concrete using low heat Portland cement, moderate heat Portland cement or high belite cement. SOLUTION: The high durability concrete composition contains water, cement, an aggregate and a high performance AE water-reducing agent and has a water to cement ratio of 20-65%. The cement is selected from moderate heat Portland cement, low heat Portland cement and high belite cement. A limestone aggregate is used as the aggregate.</p> |
