North Carolina Building Contractor License Practice Exam

Cements and aggregates used in concrete must comply with which standards?

1. ASTM standards

2. Federal regulations

3. Local building codes

4. OSHA guidelines

The correct answer is: ASTM standards

Cements and aggregates used in concrete must comply with ASTM standards due to the critical role these materials play in construction and structural integrity. ASTM, which stands for the American Society for Testing and Materials, provides a comprehensive set of guidelines and specifications that ensure materials meet safety, performance, and quality requirements. These standards cover the sourcing, testing, and performance of cements and aggregates, ultimately ensuring that they are suitable for use in concrete applications. Using materials that comply with ASTM standards ensures that the concrete produced is durable and reliable, capable of withstanding the stresses it will encounter in construction projects. Adherence to these established benchmarks helps reduce the risk of failures and increases safety in both residential and commercial structures. While federal regulations, local codes, and OSHA guidelines play important roles in various aspects of construction and workplace safety, the specific standards for cements and aggregates are best represented by ASTM.