contraction crack

简明释义

收缩破裂

英英释义

例句

1.To prevent further damage, we need to seal the contraction cracks 收缩裂缝 before winter arrives.

为了防止进一步损坏，我们需要在冬天来临之前封闭这些contraction cracks 收缩裂缝。

2.During the winter months, the concrete slab developed a contraction crack 收缩裂缝 due to the drop in temperature.

在冬季，混凝土板因温度下降而出现了一个contraction crack 收缩裂缝。

3.The contractor explained that a contraction crack 收缩裂缝 is a normal occurrence in newly poured concrete.

承包商解释说，新浇筑的混凝土中出现contraction crack 收缩裂缝是正常现象。

4.After the concrete cured, we noticed several contraction cracks 收缩裂缝 forming across the surface.

混凝土固化后，我们注意到表面出现了几条contraction cracks 收缩裂缝。

5.The engineer recommended using a flexible filler for the contraction cracks 收缩裂缝 to allow for movement.

工程师建议使用柔性填料处理contraction cracks 收缩裂缝以允许移动。

作文

In the world of construction and civil engineering, understanding the various types of cracks that can occur in concrete is vital for ensuring the longevity and durability of structures. One such type of crack is known as a contraction crack, which is a common phenomenon in concrete structures. These cracks occur as a result of the natural process of shrinkage that happens when concrete cures and dries. As the moisture evaporates from the surface of the concrete, it begins to contract, and this contraction can lead to the formation of cracks if proper measures are not taken during the curing process.The primary cause of contraction cracks is the loss of water in the concrete mixture. When water evaporates, it creates tension within the concrete, leading to stress that the material cannot withstand. This stress manifests itself as cracks, typically occurring in straight lines and often at regular intervals. These cracks can vary in size, but they are generally not a sign of structural failure; rather, they are an indication of the natural behavior of concrete as it sets and hardens.To prevent contraction cracks, several strategies can be employed during the construction phase. One effective method is to control the curing environment by minimizing exposure to wind and direct sunlight, both of which can accelerate the evaporation of moisture. Additionally, using curing compounds that retain moisture can help maintain the necessary humidity levels in the concrete. Another approach is to incorporate joints into the concrete design, which allows for controlled movement and reduces the likelihood of cracking.It is also important to consider the mix design of the concrete itself. Using a lower water-to-cement ratio can reduce the amount of shrinkage that occurs during curing, thereby minimizing the risk of contraction cracks. Furthermore, adding certain admixtures can improve the workability and durability of the concrete, making it less prone to cracking.While contraction cracks are often viewed as a nuisance, they can also serve a purpose. In some cases, these cracks can actually help relieve internal stresses within the concrete, preventing more severe damage from occurring. However, it is crucial to monitor these cracks over time to ensure that they do not widen or lead to more significant structural issues.In conclusion, contraction cracks are a natural occurrence in the life cycle of concrete structures. Understanding their causes and implementing preventive measures is essential for maintaining the integrity of buildings and infrastructure. By taking proactive steps during the construction process, engineers and contractors can significantly reduce the incidence of these cracks and enhance the overall performance of concrete materials. Ultimately, a well-managed construction project will lead to a safer and more reliable structure, benefiting both the builders and the end-users alike.

在建筑和土木工程的世界中，理解混凝土中可能出现的各种裂缝类型对于确保结构的持久性和耐用性至关重要。其中一种常见的裂缝类型被称为收缩裂缝，这是混凝土结构中常见的现象。这些裂缝是由于混凝土固化和干燥时自然收缩过程造成的。当混凝土表面的水分蒸发时，它开始收缩，这种收缩如果在固化过程中没有采取适当措施，就会导致裂缝的形成。收缩裂缝的主要原因是混凝土混合物中水分的流失。当水蒸发时，会在混凝土内部产生张力，导致材料无法承受的应力。这种应力表现为裂缝，通常以直线形式出现，并且往往间隔规律。这些裂缝的大小可能有所不同，但它们通常不是结构失效的迹象；相反，它们是混凝土在设置和硬化过程中自然行为的指示。为了防止收缩裂缝，在施工阶段可以采取几种策略。一种有效的方法是通过减少风和阳光直射的暴露来控制固化环境，这两者都可以加速水分的蒸发。此外，使用保湿的固化剂可以帮助保持混凝土所需的湿度水平。另一种方法是在混凝土设计中加入接缝，这样可以允许受控运动，减少裂缝的发生。同样，考虑混凝土本身的配合比也很重要。使用较低的水灰比可以减少固化期间发生的收缩，从而最小化收缩裂缝的风险。此外，添加某些外加剂可以改善混凝土的可加工性和耐久性，使其更不易开裂。虽然收缩裂缝通常被视为一种麻烦，但它们也可以发挥作用。在某些情况下，这些裂缝实际上可以帮助缓解混凝土内部的应力，防止更严重的损坏发生。然而，监测这些裂缝随着时间的推移是至关重要的，以确保它们不会扩大或导致更严重的结构问题。总之，收缩裂缝是混凝土结构生命周期中的自然现象。了解其原因并采取预防措施对于维护建筑物和基础设施的完整性至关重要。通过在施工过程中采取主动措施，工程师和承包商可以显著减少这些裂缝的发生，提高混凝土材料的整体性能。最终，管理良好的施工项目将导致更安全、更可靠的结构，惠及建设者和最终用户。