Effect of microstructure heterogeneity shapes on constitutive behaviour of encapsulated self-healing cementitious materials

Self-healing cementitious materials with microcapsules are complex multiscale and multiphase materials. The random microstructure of these materials governs their mechanical and transport behaviour. The actual microstructure can be represented accurately with a discrete lattice model, but computational restrictions mean that the size of domain...

An enhanced lattice beam element model for the numerical simulation of rate-dependent self-healing in cementitious materials

This paper describes the development of a discrete lattice model for simulating structures formed from self-healing cementitious materials. In particular, a new approach is presented for simulating time dependent mechanical healing in lattice elements. The proposed formulation is designed to simulate the transient damage and healing behaviour...

Housing Equity Withdrawal: Perceptions of Obstacles among Older Australian Home Owners and associated Service Providers

Housing wealth dominates the asset portfolios of the older population in Australia and many other countries. Given the anticipated spike in fiscal costs associated with population ageing, there is growing policy interest in housing equity withdrawal (HEW) to finance living needs in retirement. This paper sheds light on homeowners’ perceptions...

Housing equity withdrawal in Australia

More Australian home owners are using housing equity withdrawal to unlock financial resources to fund living expenses, especially in retirement. Policy is needed to address potential adverse consequences of these strategies.

Long term stress relaxation behaviour of polyethylene terephthalate subjected to thermally activated restrained shrinkage

Research has been carried out with the aim of better understanding the relevant properties of materials to be used in a new self-healing cementitious composite material system. The system consists of shape memory polymer tendons embedded within a cementitious matrix, upon heat activation these tendons undergo a shrinkage process which closes any...

Characterisation of healing agents for self-healing cementitious systems

Recent developments in self-healing technology inspired by natural biological materials have the potential to dramatically improve the performance and durability of cementitious materials. These self-healing cementitious materials comprise artificial flow networks embedded within the cementitious matrix that upon damage release healing agents...