Canadian Council of Independent Laboratories (CCIL) Practice Exam 2026 - Free CCIL Practice Questions and Study Guide

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What is the minimum cross-section requirement for a flexural test specimen?

100mm x 100mm

150mm x 150mm

In a flexural test, the specimen's minimum cross-section is crucial because it helps ensure that the test results are consistent and reliable. The standard minimum cross-section typically required for testing concrete specimens is 150mm by 150mm. This size provides a sufficient area to distribute loads evenly and allows for accurate measurement of flexural strength without introducing significant variability that could arise from smaller specimens.

Selecting a specimen that is too small could lead to concentrated stresses at the load points and may not represent the material's performance in actual structural applications. The 150mm x 150mm specification strikes a balance that achieves a practical size for laboratory handling while ensuring that the testing methodologies can yield precise and applicable results, which is essential for quality assurance in construction materials.

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200mm x 200mm

250mm x 250mm

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