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Rational production and improved working environment through using self compacting concrete

Objective



Practically all concretes currently used in housing and
Practically all concretes currently used in housing and
Practically all concretes currently used in housing and
civil engineering construction requires compaction to
achieve their required strength and durability. The
prevailing method for compaction is by vibration of the
freshly placed concrete. Yet for different reasons,
vibration generates delays and overcosts in projects.
Moreover it is a serious source of health hazard on and
around construction sites.
The main goal of the project is to develop a new
vibration free production system to lower the overall
cost (including technical and social costs) of in situ
cast concrete construction. The project is subdivided in
two parts:
The first part concerns the development of two new
types of concrete as follows:
* very fluid concrete called Self Compacting Concrete
(SCC). Thanks to recent developments in concrete
technology, such SCCs are feasible. The project will
focus on their mix design process, taking into account
the properties of the local materials. It will then be
possible to control the properties of the SCC at the
fresh and the hardened stage and to minimise the cost of
producing them.
* Steel Fibre Reinforced Self Compacting Concrete (SFR
SCC) where steel fibres will substitute for part of the
conventional reinforcement.
The second part deals with full scale experiments in
civil engineering and housing. The main target here is to
develop production and transport methods suitable for SCC
and to optimise construction site organization to achieve
more competitive production and construction costs.
The use of SCC will:
promote the development of a more rational concrete
production
accelerate the construction process
significantly reduce the technical cost of in situ cast
concrete construction
improve the quality, durability and reliability of
concrete structures
improve health and safety on and around the
construction site
It will lead to a more industrialised construction and to
lowering of the overall costs (including technical and
social costs) of construction.
By producing a mix design guideline of SCC and full scale
prototypes, this project will help to spread SCC
technology throughout Europe and thus increase the
competitiveness and the export potential of the European
construction industry.

Coordinator

NCC AB
Address
Vallgatan 3
170 80 Solna
Sweden

Participants (8)

Bekaert SA/NV
Belgium
Address
2,Bekaertstraat
8550 Zwevegem
Betongindustri AB
Sweden
Address

100 74 Stockholm
GTM SA
France
Address
57,Avenue Jules Quentin 57
92022 Nanterre
LULEA TEKNISKA UNIVERSITET*
Sweden
Address
12,Laboratoriegränd 12
971 87 Lulea
Laboratoire Central des Ponts et Chaussées
France
Address
58,Boulevard Lefebvre 58
75732 Paris
SWEDISH CEMENT AND CONCRETE RESEARCH INSTITUTE
Sweden
Address
26,Drottning Kristinas Vaeg 26
100 44 Stockholm
Sika SA
Spain
Address
72,Carretera De Fuencarral 72
28100 Madrid
University of Paisley
United Kingdom
Address
High Street
PA1 2BE Paisley