laitance layer

简明释义

水泥翻沫层

英英释义

例句

1.The contractor recommended grinding off the laitance layer before sealing the floor.

承包商建议在密封地板之前磨掉乳液层。

2.A thorough cleaning can help eliminate the laitance layer that forms on newly poured concrete.

彻底清洁可以帮助消除新浇混凝土上形成的乳液层。

3.Before applying the new concrete, it's essential to remove the laitance layer to ensure proper bonding.

在施加新混凝土之前，去除乳液层是确保良好粘结的关键。

4.The presence of a laitance layer can lead to weak spots in the finished surface.

存在乳液层可能导致成品表面出现弱点。

5.Inspecting for a laitance layer is crucial during the quality control process of concrete work.

在混凝土施工的质量控制过程中，检查是否存在乳液层至关重要。

作文

In the field of construction and civil engineering, understanding the various layers that form during the curing process of concrete is crucial for ensuring the integrity and longevity of structures. One such layer that often comes into play is the laitance layer, which can significantly affect the quality of the concrete surface. The laitance layer refers to a weak layer of cement and fine particles that forms on the surface of freshly poured concrete as it begins to cure. This layer is typically composed of water, cement, and aggregates that have not fully bonded together, creating a milky or cloudy appearance. The formation of a laitance layer is primarily caused by the excess water in the mix. When concrete is poured, the water tends to rise to the surface due to gravity and evaporation. As the concrete cures, this water brings with it fine particles, which settle on the surface and create the laitance layer. If left untreated, this layer can lead to several problems, including poor adhesion for subsequent layers of paint or sealant, reduced durability of the concrete, and an overall unsightly appearance. To mitigate the effects of a laitance layer, it is essential for contractors and builders to take proactive measures during the mixing and pouring processes. For instance, using the correct water-to-cement ratio can help minimize the amount of excess water that rises to the surface. Additionally, proper finishing techniques should be employed to ensure that the surface is compacted and leveled effectively. After the concrete has cured, it is often recommended to remove the laitance layer before applying any coatings or treatments. This can be accomplished through methods such as grinding, shot blasting, or using chemical treatments designed to break down the weak layer. Understanding the implications of a laitance layer is vital for anyone involved in construction. Not only does it impact the aesthetic appeal of the finished product, but it also plays a significant role in the structural integrity of concrete. By recognizing the conditions that lead to the formation of this layer, professionals can implement strategies to prevent its occurrence and ensure a high-quality end result. In summary, the laitance layer is a critical aspect of concrete work that requires careful attention and management to maintain the durability and functionality of concrete structures.

在建筑和土木工程领域，理解在混凝土固化过程中形成的各种层次对于确保结构的完整性和耐久性至关重要。其中一个常见的层次是 laitance layer ，它可能会显著影响混凝土表面的质量。 laitance layer 指的是在新浇混凝土表面上形成的一层弱水泥和细颗粒的层，随着混凝土开始固化而形成。这一层通常由水、水泥和未完全结合的骨料组成，形成一种乳白色或模糊的外观。 laitance layer 的形成主要是由于混合物中多余的水。当混凝土浇筑时，水因重力和蒸发倾向于上升到表面。随着混凝土的固化，这些水带来了细颗粒，这些颗粒沉积在表面并形成 laitance layer 。如果不加以处理，这一层可能导致多个问题，包括后续涂层或密封剂的附着力差、混凝土的耐久性降低以及整体外观不佳。为了减轻 laitance layer 的影响，承包商和建筑商在混合和浇筑过程中采取主动措施至关重要。例如，使用正确的水与水泥比例可以帮助最小化上升到表面的多余水量。此外，应采用适当的抹平技术，以确保表面有效地被压实和平整。在混凝土固化后，通常建议在施加任何涂层或处理之前去除 laitance layer 。这可以通过磨削、喷丸或使用旨在分解弱层的化学处理方法来实现。理解 laitance layer 的影响对于任何参与建筑的人来说都是至关重要的。它不仅影响成品的美观，而且在混凝土的结构完整性方面也起着重要作用。通过认识导致这一层形成的条件，专业人士可以实施防止其发生的策略，以确保高质量的最终结果。总之， laitance layer 是混凝土工作中的一个关键方面，需要仔细关注和管理，以维持混凝土结构的耐久性和功能性。