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This paper aims to evaluate the bonding properties of textile reinforced concrete (TRC)-confined concrete and corroded plain round bars.

The bonding performance of three types of specimens (not reinforced, reinforced after corrosion and reinforced before corrosion) was studied by a central pull out test.

The ultimate bond strength between the corroded steel bars and the concrete is improved when the corrosion ratio is small. After cracking, the degree of corrosion continues to grow and the ultimate bond strength decreases. TRC reinforcement has no detectable effect on the interfacial bonding properties between concrete and plain round bars when the corrosion of steel bars is small; however, when the concrete cracks under the action of rust corrosion, the TRC constraints can effectively improve the bonding performance of the two components.

TRC layer significantly delayed the chloride penetration rate, which can effectively limit the development of corrosion cracking.

The purpose of this paper is to investigate the mechanical behavior of textile-reinforced concrete (TRC)-strengthened concrete columns with small eccentricity under chloride-wet-dry cycles.

A total of ten reinforced concrete (RC) columns were constructed and subjected to eccentric compression, and the effects of the slenderness ratio, a variable number of wet-dry cycles and the coupled effect of loading and a chloride environment were analyzed. One of the columns tested was unreinforced, whereas the remaining columns were strengthened laterally with TRC.

The results showed that a reduction in the slenderness ratio was conducive to the improvement of the bearing capacity of the reinforced column; however, the reinforcement effect of TRC tended to decrease with an increasing number of wet-dry cycles, and the coupled effect of loading and a chloride environment significantly degraded the compression performance of TRC-strengthened columns, with the damage becoming more serious with increase in the sustained load ratio.

In the next test, the duration of chloride-wet-dry cycles will be extended. In the same time, to obtain a clearer trend, the authors will also increase the number of specimens to obtain more data for drawing general conclusions.

The originality is to explore the feasibility of using cement-based materials (TRC) as a confinement technique in chloride environment. The investigations demonstrate that TRC has a good reinforcement effect on the concrete columns under chloride-wet-dry cycles. Finally, influence of each parameter is analyzed, which can be used as reference and foundation in actual application.

Change in the economic status of a low-income country is accompanied by an expected increase in investment and economic activities along with land degradation and biodiversity loss. This study aims to explore Ghana's transition from a low-income to a lower-middle income economy, and the impact of the accompanying rise in extractive activities on the upstream cocoa supply chain (CSC) and its supporting ecosystem.

The author conducted interviews and made critical observations on Ghana's upstream CSC. Grounded theory (GT) and system dynamics (SD) methodologies were employed to extract and analyze themes from the data gathered. Causal loop diagrams were derived from the analyzed data to provide insight into the possible long-term structural behavior of the upstream CSC due to the change in Ghana's economic status.

The findings suggest that continuous increase in land capture by open-cast mining and logging concessionaires, poor environmental law enforcement and farmer discontentment could cause a decline in cocoa production and biodiversity.

This research could stimulate the identification of a most effective alternative policy (such as agroecological farming) to improve the living standards of upstream CSC partners and reduce biodiversity loss. The models herein could serve as a learning/demonstration tool for researchers, academia and policymakers when brainstorming students, or during stakeholder (community/society) engagement/consultation sessions, to discuss policy decisions and their consequences. The model approach could also be helpful when designing strategic land-use policies. This could improve understanding of the complex interdependent relationships and the consequences of land degradation, loss of biodiversity and rural livelihood from a system thinking perspective.