shrinkage cracking

简明释义

缩裂

英英释义

例句

1.The contractor used a special additive to reduce shrinkage cracking 收缩裂缝 in the pavement.

承包商使用了一种特殊添加剂来减少路面上的收缩裂缝。

2.After the concrete was poured, we noticed some shrinkage cracking 收缩裂缝 forming on the surface.

混凝土浇筑后，我们注意到表面出现了一些收缩裂缝。

3.During the drying process of concrete, shrinkage cracking 收缩裂缝 can occur if proper curing methods are not applied.

如果不采用适当的养护方法，在混凝土干燥过程中可能会出现收缩裂缝。

4.Engineers must consider shrinkage cracking 收缩裂缝 when designing large slabs to ensure durability.

工程师在设计大型板材时必须考虑收缩裂缝以确保耐用性。

5.To minimize shrinkage cracking 收缩裂缝, it's important to control the water-to-cement ratio in the mix.

为了最小化收缩裂缝，控制混合物中的水泥比是很重要的。

作文

Shrinkage cracking is a common issue that occurs in various construction materials, particularly concrete. This phenomenon happens when the material undergoes a reduction in volume due to moisture loss or temperature changes. As the concrete dries, it shrinks, and if this shrinkage is not uniform, it can lead to the formation of cracks. Understanding shrinkage cracking (收缩裂缝) is crucial for engineers and architects to ensure the longevity and durability of structures.One of the primary causes of shrinkage cracking (收缩裂缝) is the evaporation of water from the surface of the concrete. When freshly poured concrete is exposed to hot and windy conditions, the water can evaporate quickly, leading to rapid shrinkage. This is especially problematic in large slabs where the surface may dry faster than the interior. To mitigate this risk, it is essential to use curing methods that retain moisture, such as covering the surface with wet burlap or applying curing compounds that form a film over the concrete.Temperature fluctuations also contribute significantly to shrinkage cracking (收缩裂缝). As temperatures rise, the concrete expands, and when temperatures drop, it contracts. If these temperature changes occur rapidly, the stresses induced in the concrete can exceed its tensile strength, resulting in cracks. Engineers often consider the thermal properties of concrete when designing structures, ensuring that they can accommodate these changes without developing significant shrinkage cracking (收缩裂缝).Another factor that influences shrinkage cracking (收缩裂缝) is the mix design of the concrete. A higher water-to-cement ratio can lead to more significant shrinkage as the concrete dries. Therefore, optimizing the mix design to achieve a lower water content while maintaining workability is vital. Additionally, the use of additives such as fly ash or silica fume can improve the overall performance of the concrete, reducing the likelihood of shrinkage cracking (收缩裂缝). Preventive measures are essential in managing shrinkage cracking (收缩裂缝). Incorporating control joints in the design allows for planned cracking. These joints are deliberately placed areas where the concrete is weakened, allowing it to crack in a controlled manner rather than randomly. By directing the cracks to these joints, the structural integrity of the concrete is maintained while minimizing the visual impact of shrinkage cracking (收缩裂缝). In conclusion, shrinkage cracking (收缩裂缝) is a critical aspect of concrete construction that requires careful consideration during the design and pouring phases. By understanding the causes and implementing effective strategies to mitigate its occurrence, engineers can enhance the durability and aesthetic appeal of concrete structures. Continued research and advancements in materials science will further aid in addressing the challenges posed by shrinkage cracking (收缩裂缝), ensuring that our built environment remains safe and functional for years to come.

收缩裂缝是多种建筑材料中常见的问题，尤其是在混凝土中。这一现象发生在材料由于水分流失或温度变化而体积减少时。当混凝土干燥时，它会收缩，如果这种收缩不均匀，就会导致裂缝的形成。理解收缩裂缝（shrinkage cracking）对工程师和建筑师来说至关重要，以确保结构的持久性和耐用性。造成收缩裂缝（shrinkage cracking）的主要原因之一是混凝土表面的水分蒸发。当新浇筑的混凝土暴露在炎热和多风的条件下时，水分可能会迅速蒸发，从而导致快速收缩。这在大型板材中尤其成问题，因为表面可能比内部干得更快。为了减轻这种风险，使用保持水分的养护方法至关重要，例如用湿麻布覆盖表面或应用形成薄膜的养护化合物。温度波动也显著影响收缩裂缝（shrinkage cracking）。当温度升高时，混凝土膨胀，而当温度下降时，它收缩。如果这些温度变化发生得很快，混凝土中产生的应力可能超过其抗拉强度，从而导致裂缝。在设计结构时，工程师通常会考虑混凝土的热性能，确保它们能够适应这些变化，而不会产生显著的收缩裂缝（shrinkage cracking）。影响收缩裂缝（shrinkage cracking）的另一个因素是混凝土的配合比。较高的水泥比水比可能会导致在干燥时收缩更大。因此，优化混合设计以实现较低的水分含量，同时保持可加工性至关重要。此外，使用如粉煤灰或硅灰等添加剂可以改善混凝土的整体性能，减少收缩裂缝（shrinkage cracking）的可能性。预防措施在管理收缩裂缝（shrinkage cracking）中至关重要。在设计中加入控制缝允许计划性裂缝。这些缝是故意放置的区域，混凝土在这些地方被削弱，允许其以可控的方式开裂。通过将裂缝引导到这些接缝，混凝土的结构完整性得以保持，同时最小化收缩裂缝（shrinkage cracking）的视觉影响。总之，收缩裂缝（shrinkage cracking）是混凝土施工中的一个关键方面，在设计和浇筑阶段需要仔细考虑。通过理解原因并实施有效的策略来减轻其发生，工程师可以增强混凝土结构的耐用性和美观性。材料科学的持续研究和进步将进一步帮助解决收缩裂缝（shrinkage cracking）带来的挑战，确保我们的建筑环境在未来数年内保持安全和功能性。