Construction, like any other economic activity, can contribute to national income by creating employment opportunities, and raising gross domestic product (GDP). Several researchers have studied the challenges of various aspects of the construction industry (CI), ranging from sustainability, the industrial revolution, small and medium enterprise, building information modelling, and intelligent construction, but this research examines the state of the CI in conflict-affected regions by evaluating the challenging factors impacting this sector of the economy. A total of 150 industry experts participated in this survey across three regions (Africa, Eastern Europe, and the Middle East). In total, 35 challenging factors were identified and classified using exploratory factor analysis (EFA). Using version 4 of Smart Partial Least Squares (PLS), structural equation modelling (SEM) was used to build the model, which produced seven constructs: economic, environment and education, government, industrial, sustainability, technology, training and support. 31 challenging factors were outlined under these constructs, with economic challenges such as high inflation, high-interest rates, and foreign direct investment (FDI) being the most critical of those observed. This study will be of great importance to the governments of nations in the formulation of policies for the CI. At the same time, stakeholders in the CI will collaborate in the advancement of the sector in the affected region.

This case study describes an evaluation of the existing conditions of a concrete floor in an industrial hall located in Poland. The areas requiring improvement due to poor workmanship, as well as the age of the floor, were identified. The second part of the study is devoted to the procedure of making an innovative epoxy coating modified with granite powder, which is based on the authors’ previously published research. The analysis describes the effects of adding 10% to 60% (graded every 10%) of the powder. The primary aim of the tests was to obtain the highest possible pull-off strength. Compared to the reference sample, the highest increase in strength, 18%, was obtained with the addition of 20% granite powder. Moreover, resistance to thermal shock, one of the most important parameters of epoxy floors, was also analyzed and discussed. Standard coatings are typically not resistant to thermal shock, but the innovative coating proposed in this study allows for increased resistance by up to several dozen percent. The relationship between the amount of granite powder added and the limit value of thermal shock resistance is presented in the article. The novelty of the case study involves the proposal of a comprehensive procedure of renovating floors, including the assessment of their condition, the repair methods, their surface strengthening, and the presentation of the characteristics of the new coating.

Every stakeholder’s intention in a project is to have the best quality and minimize rework. But there are hurdles that come up during the stages and processes of a project that can compromise the quality if not handled correctly. This study aims to identify the influencing factors that affect subcontractors’quality of work and the impact of flexibility. Construction professionals from Poland and Nigeria participated in the survey. Descriptive statistics using IBM SPSS software version 27 was used to analyse the data. The results obtained shows that there are several variables influencing subcontractors’ quality of work, the overall ability of the subcontractor to ensure that the project meets the basic function of the end user's needs and intents, the degree to which the construction operations meet the design standards and specifications, strict adherence to quality assurance plan on general performance, subcontractor's ability to complete the contract on the completion date and the ability of the subcontractor to carry out the construction work with little rework, were identified as the major factors that affect the quality of work. Further analysis shows that the impact of flexibility on the subcontractors’ quality of work could increase the smooth operation of the construction processes, increase compliance with the quality specifications, helps in effective decision making and effective functioning, limit non-conformities between planning and realization of work, and reduction in rework errors. The main contractors sometimes substitute or chnage the subcontractors. This study identify poor quality of work, failure to meet the deadline, use of inappropriate material and non-conforming to quality standards as some of the reasons for this change.

Emerging economies like Poland experienced a sharp increase in the construction sector while war-ravaged Ukraine required the urgency to reconstruct their nation, and developing nations like Nigeria had a high demand for housing to meet their teeming populations. Considering the growth rate in construction activities in these nations, the volume of construction demolition and waste (CDW) will be on the rise. Hence, this study compares the various legislative frameworks regarding construction demolition and waste management (CDWM) in the three nations by focusing on policy enforcement, stakeholder involvement, infrastructure, and innovation. The results show Nigeria has a basic legislative framework with different implementation and infrastructural challenges. On the other hand, Poland has a comprehensive framework and advanced infrastructure with a great commitment to sustainable waste management, while Ukraine is in the developmental stage of enhancing its CDWM practices. The countries have unique opportunities to improve their CDWM practices through planning, stakeholder involvement, and support from international organizations focusing on best practices. Through this comparative analysis, the government of nations, and stakeholders (investors and professionals) can review and improve their CDWM policies through international collaboration and move toward a sustainable approach.

The construction sector is one of the economic drivers of several nations, contributing to the growth of the gross domestic product. The concept of demolition is an intricate societal issue that requires attention, particularly considering the escalating number of demolitions and destruction across the globe. Several studies have been carried out, but none have attempted to analyze these three terms from the viewpoint of a demolition contractor. This study aims to describe the concept of demolition, deconstruction, and destruction with a focus on the input of the demolition contractors. A literature review on the issues of demolition, deconstruction, and destruction was done. The factors considered before embarking on the concept in the building industry were discussed. The data collected were analyzed using version 29 of the Statistical Packages for Social Sciences (SPSS); the results show that health and safety environment (HSE), protection of works, and waste management- reuse, recycling, and effective disposal were ranked top three by the professionals in the demolition or construction organizations. Design flexibility and deconstruction grant were ranked lowest indicating that the industry has not fully utilized the advantage of deconstruction which in turn could encourage circularity in the economy.