Advances in Cement-Based Materials Proc. Int. Conf. Advanced Concrete Materials, 17-19 Nov. 2009, Stellenbosch, South Africa

1. Advanced materials technology & processing

• Controlling properties of concrete through nanotechnology, S.P. Shah
• Reducing the cracking potential of ultra-high performance concrete by using Super Absorbent Polymers (SAP)
• Mechanical effects of rice husk ash in ultra-high performance concretes: A matrix study
• Low Fines Self-Compacting Concrete: Application of a new generation viscosity modifying admixture for sustainable production of SCC in the ready mixed concrete industry
• Cracking properties of steel bar-reinforced expansive SHCC beams with chemical prestress
• Flexural creep behavior of SHCC beams with or without cracks

2. Mechanics of advanced cement-based materials

• Size-effect in high performance concrete road pavement materials
• Modified local bond stress – slip model for self-compacting concrete
• Pullout of microfibers from hardened cement paste
• Shear behavior of reinforced Engineered Cementitious Composites (ECC) beams
• Mechanical interaction of Engineered Cementitious Composite (ECC) reinforced
• with Fiber Reinforced Polymer (FRP) rebar in tensile loading
• Comparing the behaviour of high strength fibre reinforced and conventional reinforced concrete beams

3. Structural mechanics and applications

• Self-compacting lightweight aggregate concrete for composite slabs
• Influence of fibre type and content on properties of steel bar reinforced high-strength steel fibre reinforced concrete
• Influence of fibre content and concrete composition on properties of Self-Compacting Steel Fibre Reinforced Concrete
• Application of Textile-Reinforced Concrete (TRC) for structural strengthening and in prefabrication
• Evaluation of mechanical behaviour of weathered textile concrete
• Study on mechanical behavior of synthetic macrofiber reinforced concrete for tunneling application
• SHCC precast infill walls for seismic retrofitting
• Improving infrastructure sustainability using nanoparticle engineered cementitious composites
• Influence of pumping on the fresh properties of self-compacting concrete

4. Durability mechanics of advanced cement-based materials

• Aspects of durability of strain hardening cement-based composites under imposed strain
• Driving infrastructure sustainability with Strain Hardening Cementitious Composites (SHCC)
• Modelling the influence of cracking on chloride ingress into Strain-Hardening Cement-based Composites (SHCC)
• Physical and mechanical properties of Strain-Hardening Cement-based Composites (SHCC) after exposure to elevated temperatures
• Determining the durability of SCC using the South African early-age durability index tests
• Characterisation of crack distribution of Strain Hardening Cement Composites (SHCC) under imposed strain
• Shrinkage of highly flowable cement paste reinforced with glass fiber
• Early age cracking and capillary pressure controlled concrete curing

5. Computational modelling of advanced cement-based materials

• Finite element fracture analysis of reinforced SHCC members
• Derivation of a multi-scale model for Strain-Hardening Cement-based Composites (SHCC) under monotonic and cyclic tensile loading
• Two-scale modelling of transport processes in heterogeneous materials
• Computational modelling of Strain-Hardening Cement Composites (SHCC)
• Numerical modelling of strain hardening fibre-reinforced composites
• Some pertinent observation on the behaviour of high performance concrete-steel plate interface

6. Specifications, design guidelines and standards

• Enabling the effective use of high performance fibre reinforced concrete in infrastructure
• Towards a reliability based development program for SHCC design procedures
• A model for building a design tool for ductile fibre reinforced materials

Biography

Gideon P.A.G. Van Zijl, Billy P. Boshoff