ACI Concrete Field Testing Technician - Grade I Practice Exam 2025 - Free Concrete Field Testing Practice Questions and Study Guide

Image Description

Question: 1 / 400

When consolidating a flexural strength test specimen by rodding, how many strokes should be used for each 2 in.^2 [14 cm^2] of top surface area?

One stroke

Two strokes

In the procedure for consolidating a flexural strength test specimen by rodding, the recommended practice is to use a specific number of strokes per 2 in.^2 [14 cm^2] of the top surface area of the specimen. The standard industry practice is to employ two strokes. This approach ensures that the concrete is adequately compacted, which is crucial for obtaining reliable and consistent test results.

Using the correct number of strokes enhances the integrity of the specimen, allowing for accurate flexural strength measurements. Insufficient consolidation can lead to air voids and weak spots within the concrete, potentially skewing the results. On the other hand, over-consolidating can lead to segregation of the mix. Therefore, the specification of two strokes creates a balance that fosters quality and repeatability in the test results.

Get further explanation with Examzify DeepDiveBeta

Three strokes

Four strokes

Next Question

Report this question

Download ACI Concrete Field Testing Technician - Grade I Practice Exam PDF Study Guide
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy