BS 8000-9:2003 - Workmanship on building sites. Cementitious levelling screeds and wearing screeds. Code of practice – BSI British Standards

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BS 8000-9:2003

Workmanship on building sites. Cementitious levelling screeds and wearing screeds. Code of practice

Status : Confirmed, Current, Partially replaced, Superseded   Published : November 2003 Replaced By : BS 8000-0:2014

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This part of BS 8000 provides recommendations on laying cementitious levelling screeds and wearing screeds. It makes recommendations and gives guidance on basic workmanship for conventional types of building work.

The main changes in this British Standard from the previous edition take account of the following.

a) The terms used for the types of screeds take account of developments in European standardization. Screeds are designated “levelling screeds” where they are to receive a final flooring and “wearing screeds” where they serve to provide the finished surface.

b) Bases to carry rigid insulation boards beneath floating screeds are to be levelled by filling depressions so that the boards do not rock on high spots.

c) The specifications for materials have been updated. In particular European Standard specifications for cements now include a number of cement types and standard strength classes.

d) The use of higher slag content cements (>35%) and the equivalent combinations have been excluded from levelling screeds due to limited experience of their use.

e) The bags of cement now supplied by the manufacturers have been halved in weight to 25 kg so mix calculations have been modified.

f) Slurry bonding of the edges of day work joints is recommended before laying fresh screed material to help reduce curling at butt joints.

g) Items of work to be checked during progress, as well as on the finished screed, are listed.

h) The recommendations given in BS 8204-1 and BS 8204-2 are referred to for curing when using cement lower than strength class 42.5 N.




Standard NumberBS 8000-9:2003
TitleWorkmanship on building sites. Cementitious levelling screeds and wearing screeds. Code of practice
StatusConfirmed, Current, Partially replaced, Superseded
Publication Date07 November 2003
Confirm Date01 November 2017
Cross ReferencesBS 12:1996, BS 8204-1:2002, BS 8204-2:2002, BS 8204-3:1993, BS 8204-6:2001, BS EN 197-1:2000, BS 8203:1996, BS EN 13318
Replaced ByBS 8000-0:2014
ReplacesBS 8000-9:1999
Draft Superseded By03/303970 DC
DescriptorsConcretes, Performance, Construction operations, Floor beds, Defects, Safety measures, Inspection, Storage, Building sites, Cements, Preparation, Floors, Screeds (floors), Sand, Materials handling, Construction works, Compacting, Mixing, In-situ construction, Surface treatment, Quality, Visual inspection (testing)
ICS91.060.30
91.200
Title in FrenchQualite d'execution sur chantiers de travaux. Regles d'applanissement cimenteux et regles d'usure. Code de bonne pratique
Title in GermanBaustellenarbeiten. Zementbasierende glaettende Estriche und beschichtete Estriche. Leitfaden
CommitteeCB/300
ISBN0 580 42811 7
PublisherBSI
FormatA4
DeliveryYes
Pages22
File Size516 KB
NotesThis part should be used in combination with BS 8000-0:2014 which covers general principles of workmanship in the execution of certain works on construction sites.
Price£126.00


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