Code of Massachusetts Regulations
780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS
Chapter 19 - Concrete
Section 1904 - DURABILITY REQUIREMENTS
Subsection 1904.2 - Exposure categories and classes

Universal Citation: 780 CMR MA Code of Regs 1904.2

Current through Register 1531, September 27, 2024

Concrete shall be assigned to exposure classes in accordance with ACI 318, Section 4.2, based on:

1. Exposure to freezing and thawing in a moist condition or deicer chemicals;

2. Exposure to sulfates in water or soil;

3. Exposure to water where the concrete is intended to have low permeability; and

4. Exposure to chlorides from deicing chemicals, salt, saltwater, brackish water, seawater or spray from these sources, where the concrete has steel reinforcement.

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