Home›Knowledge›ASTM C90 — CMU Specification
📐 Standardconstruction

ASTM C90 — CMU Specification

Updated Mar 26, 2026
Standard specification for loadbearing concrete masonry units. Covers compressive strength (net area: 1900 psi min for normal weight), absorption limits, dimensions, and physical requirements for hollow and solid CMU blocks.
TAGS
ASTMCMUmasonryconcrete-blockspecification
DETAILS
number
C90
category
Masonry
current year
2023
standard body
ASTM
RELATED KNOWLEDGE
📋 Code
IBC Section 1107 — Accessible Unit and Dwelling Unit Elements
Requires accessible common use elements within individual residential units.
📐 Standard
NFPA 13 — Standard for the Installation of Sprinkler Systems
The primary standard governing design and installation of automatic fire sprinkler systems. Referenced by IBC Chapter 9. Covers system types, pipe sizing, sprinkler spacing, water supply requirements.
📋 Code
IECC Section 603 — Energy Cost Budget Method
Provides performance-based alternative to prescriptive energy code requirements.
📐 Standard
ASTM E119 — Standard Test Methods for Fire Tests of Building Construction and Materials
THE fire resistance test standard. Determines hourly fire ratings for walls, floors, roofs, columns, and beams. Referenced by IBC Table 601. Test uses standard time-temperature curve reaching 1700°F at 1 hour.
📋 Code
NFPA 99 — Health Care Facilities Code
Comprehensive code for safety systems in hospitals and medical facilities.
🌿 certification
Fire Protection Engineer (FPE) Certification
Advanced certification for engineers specializing in fire safety systems.
← Back to Knowledge Garden