Though studies in construction robotics and human–robot teams research have explored varying themes, an in-depth study of the state-of-the-art of methodological paradigms appropriate for construction robotics research is hitherto lacking, taking into consideration that several studies have highlighted conflicting methodological components such as research design, methods, data sources, data types and analytical techniques. To better understand this underexplored area, this study uses a four-stage review approach utilising a scientometric and systematic analysis method based on 112 articles. Using statistical analysis to evaluate the relationship between research components, the study reveals strong associations between components of research methods, data sources and analytical techniques. Researchers are also increasingly looking to mixed paradigms in data sources and designs, highlighting a methodological plurality in construction robotics research. Implications on what this means for the future of construction robotics, policy and stakeholders are discussed in the study.

Although public private partnerships (PPPs) have been in existence for decades as a procurement tool for infrastructure projects, a dearth of studies on ex-post evaluation of Public Private Partnership Infrastructure Projects (PPPIPs) exists globally. Additionally, the contribution of scholars to the inclusion of social dimensions in ex-post evaluations is not fully known. Due to the existing gap, this study aimed at identifying and mapping the literature on the ex-post evaluation of PPPIPs and reviewed its contribution to the assessment of social impacts through the inclusion of social dimensions. The Arkesy and O’Malley five-stage framework was used to conduct a scoping review grounded in 27 articles focusing on the ex-post evaluation of PPPIPs. The selection of articles for review used the PRISMA framework and data were analysed through content analysis. The key findings revealed that mutual relationships existed among the theoretical foundation of the review, the themes, and identified social dimensions. Additionally, diversity was seen in the needs and interests of stakeholders, and finally, the low research output in the ex-post evaluation of PPPIPs was observed. A huge research potential has been revealed with specific focus on the social dimension of the triple bottom line concept of sustainable development to achieve PPPIPs’ social sustainability.

Every year, a massive amount of natural materials are subjected to high temperatures during cement production, resulting in 5% to 8% of total global carbon dioxide (CO₂) emissions. The employment of supplementary cementitious materials (SCMs) for developing construction materials could reduce the use of natural materials and CO₂ emissions during cement manufacturing. One option to accomplish this is to examine the possibility of producing masonry mortars using thermally treated waste concrete powder (WCP) and ground granulated blast furnace slag (GGBFS). The main objective of the present study is based on this. The study was conducted in two phases. In Phase I, WCP was thermally treated at various temperatures of 0 °C, 300 °C, 500 °C, and 700 °C and then used to prepare mortars at a binder-to-fine aggregate ratio of 1:3. From the strength results obtained in Phase I, a mortar mixture made with 500 °C WCP was selected for Phase II investigation. Mortars were produced by replacing the 500 °C WCP with GGBFS at 0%, 25%, 40%, 60%, 70%, and 85%. It was found that the performance of the mortars was enhanced when GGBFS was used up to 60%. The mortar mixture containing 60% thermally treated WCP and 40% GGBFS produced the optimal physical and mechanical properties. Also, material characterization was carried out on the binders using X-ray fluorescence, scanning electron microscopy, and thermogravimetric analysis. The results indicate that the thermally treated WCPs and GGBFS contain oxides similar to cement, making them suitable for mortar production. In conclusion, the study has shown the feasibility of producing masonry mortars using thermally treated WCP and GGBFS.

Project success has often been impacted by varying factors, such as conflict arising from managing stakeholders’ remuneration, especially bordering on the scale of fees. This paper delves into the intricate landscape of fee variability among built environment professionals in South Africa. By scrutinizing the most recent available data, this research sheds light on the nuanced fee structures prevalent in the industry. To conduct this investigation, a comparative analysis of fee scales across various professions in South Africa was performed. This research employed historical project cost data extracted from an extensive dataset, encompassing project values, fees, and fee percentages for diverse professions involved in projects from 2014 to 2022. This study revealed that low scale levels are associated with poor performance and lead to conditions and attitudes that pose dangers for consultants. This study provides strategies for a firm’s resilience and adaptability in the face of the dynamics associated with fees.

Public–Private Partnership (PPP) procurement is a relatively new approach in Nigeria’s housing sector. This study introduces a Fuzzy Risk Allocation Decision Model (FRADM) designed to address the complex and subjective nature of risk allocation in PPP-procured Mass Housing Projects (MHPs). A structured quantitative approach involving 40 purposively selected PPP housing experts was employed. Using a fuzzy synthetic evaluation (FSE) technique, critical risk factors were assessed based on partners’ risk management capabilities and allocation criteria. Constants (Ci) normalized the risk-carrying capacity indices (RCCIs) of both public and private sectors. Results show that risk attitude ranks highest among nine allocation criteria (MIS = 6.21), with the private sector demonstrating higher overall risk management capability. For instance, the availability of finance risk is optimally shared 53.48% to the private and 46.52% to the public sector. The FRADM was validated as reliable, practical, and replicable. Implications point to enhanced transparency, equitable risk-sharing, and support for SDG 11. The model is a strategic tool for decision-makers in PPP housing delivery in Nigeria and can inform similar efforts in other emerging economies. Further research should examine applications across other infrastructure sectors.