引用本文摘 要：從宏觀和細觀兩個尺度分析了混凝土抗裂性能與骨料體積含量和骨料彈性模量的關系。研究結果表明，增加骨料體積含量，采用彈性模量較高的骨料，可以減小混凝土的干縮變形，但不能提高混凝土的抗裂性能。采用彈性模量較高的骨料使得宏觀干縮應力和細觀干縮應力都有所提高。增加骨料體積含量使得宏觀干縮應力向細觀干縮應力轉變。提高混凝土的抗裂性能應該注意宏觀干縮應力與細觀干縮應力之間的平衡，并給出了建立這種平衡的思路。 Abstract: The relationship between the crack resistance of concrete and the percentage by volume or the elastic modulus of aggregate is analyzed in both macroscale and microscale. The research results show that the increase of the percentage of aggregate by volume or the use of the aggregate with high elastic modulus may decrease the shrinkage deformation of concrete, but cannot rise the crack resistance of concrete. Both of the macrostress of dry shrinkage and the microstress of dry shrinkage are risen when the aggregate with high elastic modulus is used. The macrostress of dry shrinkage is transformed toward the microstress of dry shrinkage. To rise the crack resistance of concrete, it should pay attention to the balance between the macrostress of dry shrinkage and microstress of dry shrinkage, and the thinking establishing the balance is given too.
朱新釗,張承志,王愛勤.混凝土抗裂性能與骨料關系的理論分析[J].混凝土與水泥制品,2017(12):1-5. ZHU X Z, ZHANG C Z, WANG A Q.Theoretical Analysis on the Relationship Between Crack Resistance of Concrete and Aggregate[J].China Concrete and Cement Products,2017(12):1-5.