BS 3921:1985
Current
The latest, up-to-date edition.
Specification for clay bricks
Hardcopy , PDF
English
29-11-1985
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Foreword
Committees responsible
Specification
0. Introduction
1. Scope
2. Definitions
3. Sizes
4. Dimensional deviations
5. Durability
6. Efflorescence
7. Compressive strength
8. Water absorption
9. Sampling
10. Marking
Appendices
A. Measurement of dimensions
B. Determination of soluble salt content
C. Deleted
D. Determination of compressive strength
E. Determination of water absorption
F. Appearance
G. Check-list for ordering bricks
H. Determination of initial rate of suction
J. Recommendations for quality control
Tables
1. Sizes
2. Limits of size
3. Durability of bricks by compressive strength and
water absorption
4. Classification of bricks by compressive strength
and water absorption
5. Number of bricks required for testing
6. Limits for the dimensions measured when using the
gauge board
Figures
1. Arrangement of bricks for the measurement of
2. Deleted
3. Example of control charts for the quality control
scheme for compressive strength
Requirements for dimensions, compressive strength, water absorption, soluble salt content, efflorescence and sampling for bricks manufactured from clay for use in walling. Also gives methods of classification and guidance on appearance. Sizes and tolerances apply only to the 225 mm x 112 .5 mm x 75 mm format. See also BS 6649 and BS 4729.
| Committee |
B/519/1
|
| DevelopmentNote |
Supersedes 83/10329 DC, 94/106401 DC & BS 3921(1974) Re-instated as current until further notice. (02/2005)
|
| DocumentType |
Standard
|
| Pages |
30
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| SupersededBy |
| BS 4551:1980 | Methods of testing mortars, screeds and plasters |
| BS 915-2:1972 | Specification for high alumina cement Metric units |
| BS 4729:1990 | Specification for dimensions of bricks of special shapes and sizes |
| BS 1134:1961 | Centre-line-average height method for the assessment of surface texture |
| BS 2648:1955 | Performance requirements for electrically-heated laboratory drying ovens |
| BS 427-1:1961 | Method for Vickers hardness test Testing of metals |
| BS 6100-5.3:1984 | Glossary of building and civil engineering terms. Masonry Bricks and blocks |
| BS 5628-2:2000 | Code of practice for use of masonry Structural use of reinforced and prestressed masonry |
| BS 6649:1985 | Specification for clay and calcium silicate modular bricks |
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