Building Construction Handbook, Eighth Edition

Typical examples ~

Solid brickwork

T = thickness

Note: For practical reasons a standard one-brick dimension is given

for 240 minutes fire resistance. Theoretically a clay brick wall can

be 170 mm and a concrete or sand/lime brick wall 200 mm, finishes

excluded.

Solid concrete blocks of lightweight aggregate

T = thickness

Note: Finishes excluded

Fire resistance (minutes)

120 240 Material and application

T (mm) 102.5 215 Clay bricks. Load bearing or

non-load bearing wall.

T (mm) 102.5 215 Concrete or sand/lime bricks.

Load bearing or non-load

bearing wall.

Fire resistance (minutes)

60 120 240 Material and application

T (mm) 100 130 200 Load bearing, 2.8†3.5 N/mm^2

compressive strength.

T (mm) 90 100 190 Load bearing, 4.0†10 N/mm^2

compressive strength.

T (mm) 75 100 140 Non-load bearing, 2.8†3.5 N/mm^2

compressive strength.

T (mm) 75 75 100 Non-load bearing, 4.0†10

N/mm^2 compressive strength.

Internal Masonry Walls -- Fire Protection