1964_BUILDING_(CONSTRUCTION)_REGULATIONS — Page 105

HK Historical Laws 香港歷史法例 All AI Reviewed

1985 Ed.]

Building (Construction) Regulations

[CAP. 123

B 105

(2) For the purpose of Tables XXXIX and XL, ucu is the works resistance to crushing of the concrete when tested in accordance with the First Schedule within 28 days after mixing.

[Subsidiary]

First Schedule.

TABLE XXXIX

Maximum permissible compressive stresses for special mixes and designed mixes in MPa

Maximum permissible compressive stress

L.N. 294/76.

1 2 3 4 Special mixes direct due to bending but not more than 8.5 ❝ but not more than II Designed mixes W but not more than 11 Ww but not more than 15 3.65 2.73

TABLE XL

Maximum permissible shear and bond stresses for special and designed mixes in MPa

1 2 3 4 Maximum permissible bond stress Resistance to crushing ucu * Maximum permissible average local More than 20 + 0.27 but not more than 0.9 + 0.40 but not more than 1.0 2ucu + 0.67 but not more than 1.5 20 0.7 0.8 1.2 Less than 20 30 25 50 Ucu # 3 u It'

Page 105

Page 106

Edit History

2026-05-04 08:22:32 · NVIDIA / meta/llama-4-maverick-17b-128e-instruct

Live

View comparison

AI Proofread

1985 Ed.] Building (Construction) Regulations [CAP. 123 B 105 (2) For the purpose of Tables XXXIX and XL, ucu is the works resistance to crushing of the concrete when tested in accordance with the First Schedule within 28 days after mixing. [Subsidiary] First Schedule. TABLE XXXIX Maximum permissible compressive stresses for special mixes and designed mixes in MPa Maximum permissible compressive stress L.N. 294/76. 1 2 3 4 Special mixes direct due to bending but not more than 8.5 ❝ but not more than II Designed mixes W but not more than 11 Ww but not more than 15 3.65 2.73 TABLE XL Maximum permissible shear and bond stresses for special and designed mixes in MPa 1 2 3 4 Maximum permissible bond stress Resistance to crushing ucu * Maximum permissible average local More than 20 + 0.27 but not more than 0.9 + 0.40 but not more than 1.0 2ucu + 0.67 but not more than 1.5 20 0.7 0.8 1.2 Less than 20 30 25 50 Ucu # 3 u It' Page 105 Page 106

Baseline (Original)

1985 Ed.] Building (Construction) Regulations [CAP. 123 B 105 (2) For the purpose of Tables XXXIX and XL, u,, is the works resistance to crushing of the concrete when tested in accordance with the First Schedule within 28 days after mixing. [Subsidiary] First Schedule. TABLE XXXIX Maximum permissible compressive stresses for special mixes and designed mixes in MPa Maximum permissible compressive stress L.N. 294/76. H Special mixes 线 2 3 direct due to bending 4 but not more than 8.5 ❝ but not more than II 3 Designed mixes W but not more than 11 Ww but not more than 15 3.65 2.73 TABLE XL Maximum permissible shear and bond stresses for special and designed mixes in M Pa 1 2 Maximum permissible bond stress 3 Resistance to crushing u * Maximum permissible average local tw More than 20 + 0.27 but not + 0.40 but not 2ux + 0.67 but not 50 50 more than 0.9 more than 1.0 75 more than 1.5 20 0.7 0.8 1.2 Uz # 3 u It' Less than 20 30 25 50 Page 105Page 106

2026-05-04 08:22:32 · Baseline

View content

1985 Ed.]

Building (Construction) Regulations

[CAP. 123

B 105

(2) For the purpose of Tables XXXIX and XL, u,, is the works resistance to crushing of the concrete when tested in accordance with the First Schedule within 28 days after mixing.

[Subsidiary]

First Schedule.

TABLE XXXIX

Maximum permissible compressive stresses for special mixes and designed mixes in MPa

Maximum permissible compressive stress

L.N. 294/76.

Special mixes

线

direct

due to bending

but not more than 8.5

❝ but not more than II

Designed mixes

but not more than 11

but not more than 15

3.65

2.73

TABLE XL

Maximum permissible shear and bond stresses for special and designed mixes in M Pa

Maximum permissible bond stress

Resistance to

crushing u

Maximum permissible

average

local

More than 20

+ 0.27 but not

+ 0.40 but not

2ux

+ 0.67 but not

more than 0.9

more than 1.0

more than 1.5

0.7

0.8

1.2

3 u

It'

Less than 20

Page 105Page 106

Comments

Approved members can add comments, bookmarks, and private notes.

No comments yet.

Private Research Note

Private notes are available after approval.