BS 8204-1:1999
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Screeds, bases and in-situ floorings Concrete bases and cement sand levelling screeds to receive floorings. Code of practice
Hardcopy , PDF
20-08-2002
English
15-09-2001
Committees responsible
Foreword
1 Scope
2 Normative references
3 Definitions
4 Exchange of information and time schedule
5 Materials
6 Design considerations
7 Work on site
8 Inspection and testing of bases and levelling
screeds
Annex A (informative) Recommendations for the use of
lightweight aggregates in
concrete bases and levelling
screeds
Annex B (normative) Methods for the assessment of
levels and surface regularity
Annex C (normative) Method for the determination of
in-situ crushing resistance of
bonded and unbonded levelling
screeds
Bibliography
Figure 1 - Illustration of layers in a ground-
supported concrete floor
Figure 2 - Illustration of layers in a suspended
concrete floor
Figure B.1 - Stainless steel slip gauges for
checking surface regularity
Figure C.1 - BRE screed tester
Table 1 - Grading limits of sand for levelling
screeds
Table 2 - Admixtures
Table 3 - Concrete strength for base slabs
Table 4 - Choice of in-situ resistance category
for levelling screeds
Table 5 - Acceptance limits for in-situ crushing
resistance test (Annex C)
Table 6 - Classification of surface regularity of
direct finished base slab or levelling
screed
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