Canadian Council of Independent Laboratories (CCIL) Practice Exam

Improper storage of cement can lead to clumping or caking, which significantly affects its usability and performance. When cement is exposed to moisture, it tends to absorb water, which can cause it to aggregate and form hard lumps. This physical change makes it difficult to use the cement effectively in construction applications, as it hampers the ability to achieve a consistent and uniform mix. In contrast, the other potential consequences listed do not accurately reflect the effects of poor storage. For example, increased strength, extended shelf life, and improved mixing efficiency are all desirable outcomes, but they are not achieved when cement is stored improperly. In fact, clumping limits the effectiveness of cement, leading to lower quality in construction projects. Therefore, storing cement in a dry and climate-controlled environment is crucial for maintaining its integrity and ensuring optimal performance in construction applications.