Depending on the stress state, mine tailings are generally accepted to be susceptible to static
liquefaction. A common method to assess the in situ stress state of tailings in relation to static
liquefaction susceptibility ...
The design of pile foundations that are expected to develop significant lateral loading is a complex procedure that requires the development of objective and accurate design formulae that will not be based on semi-empirical ...
New methods are proposed for the verification of the presence of superabsorbent polymers (SAP) in freshly mixed concrete and estimation of SAP quantity. The methods are in general based on flushing concrete with excess ...
Della Ragione, Gianluigi Della; Abadie, C.N.; Xu, X.; Da Silva Burke, Talia Simone; Moller, T.; Bilotta, Emilio(ICE Publishing, 2023-12)
Strain measurement inside the soil body in three-dimensional (3D) experiments is a real challenge for physical modellers in geotechnics. The use of fibre optic sensing offers the possibility of continuous measurement of ...
Della Ragione, Gianluigi; Bilotta, Emilio; Xu, Xiaomin; Da Silva Burke, Talia Simone; Moller, Tobias; Abadie, Christelle N.(ICE Publishing, 2024)
This paper forms part of the SINEW(sinkhole early warning) project and continues the work conducted by Möller and co-workers in 2022, where 1g experiments demonstrated the feasibility of using distributed fibre-optic sensing ...
Anochie-boateng. J.K.; Malisa, John T.(American Society for Testing and Materials, 2023-09)
Tanzania was faced with high incidences of premature rutting failures on their asphalt pavements. Some pavements experienced failures within one to two years after construction/rehabilitation. The objective of this ...
The South African pavement community has shown a keen interest in the use of imaging techniques to characterize the morphological characteristics of aggregates used in road and railway construction. This interest arises ...
Pavement condition evaluation plays a crucial role in assisting with the management of the highway infrastructure. However, the current methods used for assessing pavement conditions are costly, time-consuming, and subjective. ...
This paper presents the results of a centrifuge study in which swell of an expansive clay profile was induced in the
centrifuge. A factor which has previously hindered such research is the time required to induce significant ...
Surface curing of concrete is known to mitigate potential plastic shrinkage cracking. In this research, water and three curing compounds were used to investigate the efficacy of liquid curing on plastic shrinkage cracking ...
Capturing the in-situ state of mine tailings is important in determining its behaviour under
loading for evaluating the risk of failure of tailings dams. Obtaining a high-quality undisturbed sample
through tube sampling ...
This paper presents the results of element testing and centrifuge modelling to investigate the
behaviour of piled foundations in swelling clays. The study revealed that the preparation procedure
implemented, was able to ...
Expansive (or swelling) clays are the most prolific problem soil across Southern Africa and many
parts of the world. Large volume changes due to seasonal wetting and drying cause millions of dollars’
worth of damage to ...
Plastic shrinkage cracking occurs when fresh concrete is drying and restrained from deformation, which typically
results in cracking. The tensile stresses causing cracking result from the negative capillary pressure that ...
Textile-reinforced concrete (TRC) offers a solution to the drawback associated with the production of cement and
its use in construction. It also promotes the design of concrete in a post-cracking stage as the yarns bridge ...
Charles, W.W.; Crous, Petrus A.; Jacobsz, Schalk Willem(American Society of Civil Engineers, 2023-09)
Tailings dams have relatively high failure rates throughout the world and the consequences of these failures often result in
significant loss of life and damage to the environment and property. However, the triggers and ...
A study aimed towards assessing the variation in shaft capacity of piled foundations in swelling clays is presented. At the clay's in-situ water content, the results of pull-out tests on short-length piles revealed no ...
Hayes, Gary Patrick(University of Pretoria, 2023-07)
The research presented in this thesis was motivated by two factors. Firstly, little route choice research
has been undertaken in South Africa, especially in urban areas. This has resulted in significant gaps in
our ...