Three‐Dimensional Computer Simulation of Portland Cement Hydration and Microstructure Development

Virtual cement and concrete testing laboratory :

“…The full details of the operating principles for the digital image approach can be found in other publications [Bentz 1997, Bentz 2005. A discussion of computational tools that have been developed to analyze the properties of digital image microstructures can be found in [Garboczi and Bentz 1999].…”

“…The NIST cement hydration model [Bentz 1997, Bentz 2005 operates directly on 3D digital images of cement paste microstructures created as described earlier. Execution of the model requires a starting microstructure, information about the curing conditions (thermal conditions and moisture state), and the frequency at which to output various data for later analysis.…”

“…The main underlying programs for the eVCCTL software have been described previously [Bentz 1997, Bentz 2005, Garboczi 1998], and a large number of applications of these models has been published , Bentz and Jensen 2000, Bentz and Feng, 2000, Bentz and Conway 2001, Bentz and Garboczi 1991, Bullard and Stutzman 2006, Bullard and Garboczi 2006. This user guide therefore provides a detailed description of the user interface and a few examples of using eVCCTL for educational purposes.…”

Towards multiscale modeling of the interaction between transport and fracture in concrete

“…The diffusion-binding model is applied to an ordinary Portland cement [40] and the microstructures are obtained through CEMHYD3D [18,19]. The behavior of both plain hardened cement paste (HCP) (Fig.…”

“…Concerning the microscale, the 3D imaging techniques available to date, although evolving very fast, do not yet reach the level of detail needed (in terms of both resolution and quality of the image) for the detection of all the possible phases [17]. Hence, numerical models able to simulate the hydrated cement microstructure, such as CEMHYD3D [18,19] or HYMOSTRUCT3D [20], are generally adopted [5,10]. At the mesoscale, artificial geometry generation is in many cases too simplified or very complex to implement [21][22][23][24], while CT is adequate in terms of resolution.…”