连铸板坯表面纵裂起因于结晶器弯月面初生凝固坯壳厚度的不均匀性。
The longitudinal surface cracks of continuous cast slab results from the thickness inhomogeneity of the initially solidified shell at the meniscus of mould.
试验结果表明，钢丝网复合砂浆薄层可以明显地提高钢筋混凝土梁的抗弯承载力，提高抗裂性能，增强构件的抗弯刚度。
The results showed that ferrocement can obviously increase the load bearing capacity and crack resisting capacity, and improve the bending stiffness of beam.
对早龄期混凝土取芯，测出其弯拉强度，作为抗裂限值。
Drill several cores at different ages of the early age concrete, then measure its flexural strength, take this flexural strength as the anti-cracking limits.
试验结果表明，钢丝网复合砂浆薄层可以明显地提高钢筋混凝土梁的抗弯承载力，提高抗裂性能，增强构件的抗弯刚度。
The test results confirm that ferrocement contributes greatly to the increase of flexural resistance capacity, raises crack-resisting capacity and improves the bending stiffness of RC beams.
借助弯曲荷载-挠度全曲线，分析了纤维掺量和类型对韧性指数和初裂荷载的影响。结果表明，钢纤维混凝土的抗弯初裂强度、极限强度和弯曲韧性均随纤维掺量的增大而提高。
Through the load-deflection curves of SFRC, the effects of fiber kinds and fiber content on the first-crack strength and the flexural toughness of SFRC were contrasted with those of concrete.
借助弯曲荷载-挠度全曲线，分析了纤维掺量和类型对韧性指数和初裂荷载的影响。结果表明，钢纤维混凝土的抗弯初裂强度、极限强度和弯曲韧性均随纤维掺量的增大而提高。
Through the load-deflection curves of SFRC, the effects of fiber kinds and fiber content on the first-crack strength and the flexural toughness of SFRC were contrasted with those of concrete.
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