plastic shrinkage cracking

简明释义

塑性收缩开裂

英英释义

例句

1.We need to monitor the conditions closely to prevent plastic shrinkage cracking 塑性收缩裂缝 in the fresh concrete.

我们需要密切监测条件，以防止新鲜混凝土中的塑性收缩裂缝。

2.During the curing process, we observed significant plastic shrinkage cracking 塑性收缩裂缝 in the concrete slab.

在固化过程中，我们观察到混凝土板上出现显著的塑性收缩裂缝。

3.To minimize plastic shrinkage cracking 塑性收缩裂缝, it is essential to use proper curing methods.

为了最小化塑性收缩裂缝，采用适当的养护方法是至关重要的。

4.The contractor implemented measures to reduce plastic shrinkage cracking 塑性收缩裂缝 in the new pavement.

承包商采取措施减少新铺路面上的塑性收缩裂缝。

5.Excessive water in the mix can lead to more severe plastic shrinkage cracking 塑性收缩裂缝 during drying.

混合物中水分过多可能导致干燥过程中更严重的塑性收缩裂缝。

作文

Plastic shrinkage cracking is a common phenomenon that occurs in concrete during its early stages of curing. This type of cracking happens when the surface of the concrete dries out faster than the interior, leading to a differential shrinkage that creates visible cracks. Understanding the causes and implications of plastic shrinkage cracking (塑性收缩裂缝) is essential for anyone involved in construction or concrete work. When concrete is poured, it is in a plastic state, meaning it is still fluid and can be molded into various shapes. However, as the water in the mixture begins to evaporate, the concrete starts to lose moisture. If this evaporation occurs too quickly, especially in warm or windy conditions, the surface of the concrete may dry out before the internal portions have had a chance to set properly. This rapid drying can create tension within the material, resulting in cracks.There are several factors that contribute to plastic shrinkage cracking (塑性收缩裂缝). Environmental conditions play a significant role; high temperatures, low humidity, and strong winds can accelerate the rate of evaporation. Additionally, the mix design of the concrete itself can influence its susceptibility to cracking. For instance, a higher water-to-cement ratio can lead to increased shrinkage as the water evaporates. Furthermore, the thickness of the slab being poured can also affect the likelihood of cracking; thinner slabs are generally more prone to this issue.Preventing plastic shrinkage cracking (塑性收缩裂缝) is crucial for maintaining the integrity and aesthetic of concrete structures. One effective method is to use curing compounds that form a film over the surface, reducing evaporation rates. Another approach is to implement wet curing methods, such as covering the concrete with wet burlap or using water sprays to keep the surface moist. Additionally, scheduling pours during cooler times of the day can help minimize the risk of rapid evaporation.It is also important to ensure proper planning and execution during the pouring process. Using windbreaks or portable shelters can help protect freshly poured concrete from harsh environmental conditions. Moreover, employing additives in the concrete mix can enhance its resistance to shrinkage and cracking. These strategies not only help prevent plastic shrinkage cracking (塑性收缩裂缝) but also improve the overall durability and performance of the concrete.In conclusion, plastic shrinkage cracking (塑性收缩裂缝) is a significant concern in the field of concrete construction. By understanding the causes and implementing preventive measures, contractors and builders can mitigate the risks associated with this type of cracking. Proper care during the curing process is vital for ensuring that concrete achieves its intended strength and longevity. As the construction industry continues to evolve, ongoing research and innovation will further enhance our ability to address challenges like plastic shrinkage cracking, ultimately leading to more resilient and durable structures. By taking proactive steps to manage environmental conditions and utilizing appropriate techniques, we can significantly reduce the occurrence of plastic shrinkage cracking (塑性收缩裂缝) and ensure the success of concrete projects.

塑性收缩裂缝是混凝土在早期养护阶段常见的现象。这种裂缝发生在混凝土表面干燥速度快于内部时，导致差异收缩，从而产生可见的裂缝。理解塑性收缩裂缝(plastic shrinkage cracking)的原因和影响对于任何参与建筑或混凝土工作的人来说都是至关重要的。当混凝土被浇筑时，它处于塑性状态，这意味着它仍然是流动的，可以被塑造成各种形状。然而，随着混合物中水分的蒸发，混凝土开始失去水分。如果这种蒸发发生得太快，特别是在温暖或多风的条件下，混凝土的表面可能会在内部尚未完全凝固之前就干燥。这种快速干燥会在材料内部产生张力，从而导致裂缝。有几个因素会导致塑性收缩裂缝(plastic shrinkage cracking)。环境条件起着重要作用；高温、低湿度和强风会加速蒸发率。此外，混凝土的配合比也会影响其易裂性。例如，较高的水泥比水比会导致在水分蒸发时收缩增加。此外，浇筑的板材厚度也会影响裂缝的可能性；较薄的板通常更容易出现此问题。预防塑性收缩裂缝(plastic shrinkage cracking)对于维护混凝土结构的完整性和美观至关重要。一种有效的方法是使用养护剂，在表面形成薄膜，减少蒸发率。另一种方法是实施湿养护方法，例如用湿麻布覆盖混凝土或使用水喷雾保持表面湿润。此外，在一天较凉的时间安排浇筑也可以帮助最小化快速蒸发的风险。在浇筑过程中，确保适当的计划和执行也很重要。使用挡风板或便携式遮阳棚可以帮助保护新浇筑的混凝土免受恶劣环境条件的影响。此外，在混凝土混合物中使用添加剂可以增强其对收缩和裂缝的抵抗力。这些策略不仅有助于防止塑性收缩裂缝(plastic shrinkage cracking)，还改善混凝土的整体耐久性和性能。总之，塑性收缩裂缝(plastic shrinkage cracking)是混凝土施工领域的重要问题。通过了解原因并采取预防措施，承包商和建筑商可以减轻与这种裂缝类型相关的风险。在养护过程中妥善处理对于确保混凝土达到预期强度和耐久性至关重要。随着建筑行业的不断发展，持续的研究和创新将进一步增强我们应对塑性收缩裂缝等挑战的能力，从而造就更坚韧和持久的结构。通过采取积极的措施来管理环境条件，并利用适当的技术，我们可以显著减少塑性收缩裂缝(plastic shrinkage cracking)的发生，确保混凝土项目的成功。