TY - GEN
T1 - Impact resistance and finite element modelling of Reactive Powder Concrete
AU - Luk, B.
AU - Millard, S.
AU - Soutsos, M.
AU - Molyneaux, T.
PY - 2004/12/1
Y1 - 2004/12/1
N2 - This paper describes an investigation of ultra-high strength, high ductility, and low porosity cementitious composite material designated Reactive Powder Concrete (RPC). This relatively new material incorporates low water-cement ratio, high cement content, high silica fume content and high dosages of superplasticisers to achieve a satisfactory workability. The only aggregate used is silica sand, and by introducing a special steel fibre, a tensile flexural strength of up to 50MPa can be achieved. The basic properties of this material are related to the composition, mixing and the post-set heat treatment. RPC has high strength and ductility, it is an ideal material for the structure that resists high impact load or explosive loading. Compared to traditional reinforced concrete, RPC is relatively expensive, and full-scale concrete tests often need to be destructive. Finite element modelling together with limited physical testing is an economic way to investigate the dynamic behaviour. The objectives of this project are to both explore the mix design of the material and to investigate suitable means of modelling RPC using DYNA3D, an explicit finite elements analysis package ideally suited to impact analysis. The research also needs to be conducted to develop, and facilitate commercialisation of precast products which utilize many of the enhanced properties.
AB - This paper describes an investigation of ultra-high strength, high ductility, and low porosity cementitious composite material designated Reactive Powder Concrete (RPC). This relatively new material incorporates low water-cement ratio, high cement content, high silica fume content and high dosages of superplasticisers to achieve a satisfactory workability. The only aggregate used is silica sand, and by introducing a special steel fibre, a tensile flexural strength of up to 50MPa can be achieved. The basic properties of this material are related to the composition, mixing and the post-set heat treatment. RPC has high strength and ductility, it is an ideal material for the structure that resists high impact load or explosive loading. Compared to traditional reinforced concrete, RPC is relatively expensive, and full-scale concrete tests often need to be destructive. Finite element modelling together with limited physical testing is an economic way to investigate the dynamic behaviour. The objectives of this project are to both explore the mix design of the material and to investigate suitable means of modelling RPC using DYNA3D, an explicit finite elements analysis package ideally suited to impact analysis. The research also needs to be conducted to develop, and facilitate commercialisation of precast products which utilize many of the enhanced properties.
UR - http://www.scopus.com/inward/record.url?scp=84857499430&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84857499430
SN - 9058096777
SN - 9789058096777
T3 - 5th International PhD Symposium in Civil Engineering - Proceedings of the 5th International PhD Symposium in Civil Engineering
SP - 75
EP - 83
BT - 5th International PhD Symposium in Civil Engineering - Proceedings of the 5th International PhD Symposium in Civil Engineering
T2 - 5th International PhD Symposium in Civil Engineering
Y2 - 16 June 2004 through 19 June 2004
ER -