laitance

简明释义

英[ˈleɪtəns]美[ˈleɪtns]

n. 水泥浆

英英释义

单词用法

同义词

反义词

例句

1.Carry out surface preparation by grinder and dust free self-enclosed portable grinder until to remove surface laitance and provide sound and textured surface.

使用地坪打磨机和无尘封闭手提磨机去除表面粗糙物，并提供涂装对表面所要求的粗糙度。

2.In horizontal elements, such as floor slabs, excess water rises and causes a weak laitance layer at the top.

在诸如楼板之类的水平构件中，过剩水分增加会导致顶部的薄弱浆沫层。

3.Carry out surface preparation by grinder and dust free self-enclosed portable grinder until to remove surface laitance and provide sound and textured surface.

使用地坪打磨机和无尘封闭手提磨机去除表面粗糙物，并提供涂装对表面所要求的粗糙度。

4.The chef noticed a layer of laitance on the surface of the sauce, indicating it was ready to be served.

厨师注意到酱汁表面有一层乳化物，这表明它已经准备好可以上桌了。

5.The presence of laitance in the soup indicated that the flavors were well combined.

汤中存在的乳化物表明味道已经很好地融合在一起。

6.After whisking the mixture for several minutes, the laitance became visibly thicker.

搅拌混合物几分钟后，乳化物明显变得更浓稠。

7.The laitance formed during the emulsification process gave the dressing a creamy consistency.

在乳化过程中形成的乳化物使调料具有了奶油般的稠度。

8.When making mayonnaise, achieving the right laitance is crucial for the perfect texture.

制作蛋黄酱时，达到合适的乳化物对于完美的质地至关重要。

作文

In the world of construction and civil engineering, the term laitance refers to a thin layer of weak material that can form on the surface of freshly poured concrete. This phenomenon occurs when water rises to the surface during the curing process, bringing with it fine particles of cement and aggregates. The result is a milky or cloudy film that can compromise the strength and durability of the concrete. Understanding laitance is crucial for engineers and contractors, as it can affect the longevity of concrete structures. When concrete is poured, it undergoes a chemical reaction known as hydration, which is essential for the hardening process. However, if too much water is present, it can lead to the formation of laitance. This is especially common in areas with high humidity or during rainy conditions. If not addressed, laitance can create a weak layer that may peel or flake off over time, exposing the underlying concrete to environmental factors that can lead to further degradation.To prevent laitance, it is important to control the water-to-cement ratio during mixing. A well-designed mix will ensure that there is enough moisture for hydration without excess water that could lead to problematic layers. Additionally, proper finishing techniques can help minimize the risk of laitance. For example, avoiding excessive troweling or floating can help maintain the integrity of the surface.If laitance does occur, it is vital to remove it before applying any additional coatings or treatments. This can be done through methods such as sandblasting or water jetting. By eliminating this weak layer, contractors can ensure that subsequent applications adhere properly and perform as intended.Moreover, understanding the implications of laitance is not only relevant for immediate construction practices but also for long-term maintenance of concrete structures. Regular inspections can help identify areas where laitance has formed, allowing for timely repairs and interventions. This proactive approach can save significant costs in the future, as addressing issues early on is generally more economical than dealing with extensive damage later.In conclusion, laitance is a critical concept in the field of concrete construction. Its formation can lead to significant challenges if not managed properly. By understanding its causes and effects, professionals can take preventive measures to ensure the strength and durability of concrete structures. Ultimately, recognizing the importance of laitance contributes to the overall success of construction projects and the safety of the built environment.

在建筑和土木工程的世界中，术语laitance指的是新浇混凝土表面上形成的一层薄弱材料。这种现象发生在固化过程中，当水在表面上升时，带来了细小的水泥和骨料颗粒。结果是形成一种乳白色或浑浊的薄膜，这可能会影响混凝土的强度和耐久性。理解laitance对工程师和承包商至关重要，因为它会影响混凝土结构的使用寿命。当混凝土浇筑时，它经历一种称为水化的化学反应，这是硬化过程所必需的。然而，如果水分过多，就可能导致laitance的形成。这在高湿度或下雨的条件下尤其常见。如果不加以处理，laitance可能会形成一层薄弱的涂层，随着时间的推移可能会剥落或脱落，暴露出下面的混凝土，从而导致环境因素进一步恶化。为了防止laitance的形成，在混合过程中控制水与水泥的比例非常重要。设计良好的混合物将确保有足够的水分用于水化，而不会有多余的水分导致问题层。此外，适当的抹平技术可以帮助最小化laitance的风险。例如，避免过度抹平或浮动可以帮助保持表面的完整性。如果发生laitance，在施加任何额外涂层或处理之前，务必将其去除。这可以通过喷砂或水射流等方法完成。通过消除这一薄弱层，承包商可以确保后续应用能够正确粘附并按预期性能。此外，了解laitance的影响不仅与即时施工实践相关，还与混凝土结构的长期维护相关。定期检查可以帮助识别出laitance形成的区域，从而及时进行修复和干预。这种主动的方法可以在未来节省大量成本，因为及早处理问题通常比处理后期的严重损坏更经济。总之，laitance是混凝土施工领域中的一个关键概念。其形成如果管理不当，可能会导致重大挑战。通过理解其原因和影响，专业人士可以采取预防措施，以确保混凝土结构的强度和耐久性。最终，认识到laitance的重要性有助于建筑项目的整体成功以及建筑环境的安全。