Section 2103A — MASONRY CONSTRUCTION MATERIALS — 2025 California Building Code (Title 24, Part 2)

2103 A .1 Masonry units. Concrete masonry units, clay or shale masonry units, stone masonry units, glass unit masonry shall comply with Article 2.3 of TMS 602. Architectural cast stone shall conform to TMS 504. Architectural cast stone construction shall be considered as an alternative system. Exception: Structural clay tile for nonstructural use in fireproofing of structural members and in wall furring shall not be required to meet the compressive strength specifications. The fire-resistance rating shall be determined in accordance with ASTM E119 or UL 263 and shall comply with the…

provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use

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2103A.5 Air entrainment. ¶

2103A.5 Air entrainment. Air-entraining materials or air-entraining admixtures shall not be used in grout.

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2103A.6 Specified compressive strength of masonry and grout . ¶

2103A.6 Specified compressive strength of masonry and grout . Replace TMS 402 Table 4.3.1 by the following: TABLE 4.3.1—SPECIFIED COMPRESSIVE STRENGTH REQUIREMENTSCol2Col3 --------- TYPE OF MASONRYSPECIFIED COMPRESSIVE STRENGTH OF MASONRYSPECIFIED COMPRESSIVE STRENGTH OF GROUT Concrete masonry2,000 psi (13.79 MPa) ≤ f'm ≤ 3,000 psi (20.68 MPa)f'g ≥ f'm ≤ 5,000 psi (34.47 MPa) Clay masonry1,500 psi (10.34 MPa) ≤ f'm ≤ 4,500 psi (31.02 MPa)f'g≤ 6,000 (41.37 MPa)

provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard

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