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The purpose of this study is to investigate the effect on flexural strength of fire-damaged concrete repaired with high-strength mortar (HSM).

Reinforced concrete beams with dimension of 100 mm × 100 mm × 500 mm were used in this study. Beams were then heated to 400°C and overlaid with either HSM or high-strength fiber reinforced mortar (HSFM) to measure the effectiveness of repair material. Repaired beams of different material were then tested for flexural strength. Another group of beams was also repaired and tested by the same procedure but was heated at higher temperature of 600°C.

Repair of 400°C fire-damaged samples using HSM regained 72 per cent of its original flexural strength, 100.8 per cent of its original toughness and 56.9 per cent of its original elastic stiffness. Repair of 400°C fire-damaged samples using HSFM regained 113.5 per cent of its original flexural strength, 113 per cent of its original toughness and 85.1 per cent of its original elastic stiffness. Repair of 600°C fire-damaged samples using HSM regained 18.7 per cent of its original flexural strength, 25.9 per cent of its original peak load capacity, 26.1 per cent of its original toughness and 22 per cent of its original elastic stiffness. Repair of 600°C fire-damaged samples using HSFM regained 68.4 per cent of its original flexural strength, 96.5 per cent of its original peak load capacity, 71.2 per cent of its original toughness and 52.2 per cent of its original elastic stiffness.

This research is limited to the size of the furnace. The beam specimen is limited to 500 mm of length and overall dimensions. This dimension is not practical in actual structure, hence it may cause exaggeration of deteriorating effect of heating on reinforced concrete beam.

This study may promote more investigation of using HSM as repair material for fire-damaged concrete. This will lead to real-world application and practical solution for fire-damaged structure.

The aim of this research in using HSM mostly due to the material’s high workability which will ease its application and promote quality in repair of damaged structure.

There is a dearth of research on using HSM as repair material for fire-damaged concrete. Some research has been carried out using mortar but at lower strength compared to this research.

The notion of students as change agents have widely been used in the campus sustainability literature, but very little has been done to unpack what it really means in practice. This paper aims to critically investigate university students’ perspectives on their role as a change agent for campus sustainability in the context of Malaysian universities.

In-depth interviews were carried out with 21 students that have been categorized as change agents through selection criteria at three leading universities in the area of campus sustainability in Malaysia. The data collected from the interviews were analysed through content-based and thematic analysis.

Findings demonstrate that students are the backbone behind the implementation of campus sustainability activities. They play the multi-faceted role of leaders, supporters and ambassadors in initiating and driving campus sustainability. The results further suggest that support and freedom to act are the empowering factors that have driven these change agents in carrying out their initiatives. However, without a position, the students’ voices are not significant.

This study provides deeper evidence-based insights on the notion of students as change agents and how it can be operationalized in the context of campus sustainability.

The objectives of this study are to determine the level of awareness of crowdfunding and green projects among Bruneians, to investigate the preference of Bruneians regarding funding through crowdfunding as well as to evaluate the willingness of Bruneians to use crowdfunding as a funding alternative for green projects in Brunei. In addition to that, this study aims to identify the effects of environmental awareness and environmental concern on the willingness to crowdfund green projects.

A total of 177 responses from an online questionnaire distributed via convenience and snowball sampling was used for data analysis. Frequency, descriptive, correlation and regression analyses are used to achieve the aims of this study.

The study finds that the awareness of the concepts of crowdfunding and green project is high among Bruneians, but the level of their familiarity of crowdfunding platforms and climate change issues is very low. Regression analysis carried out to test the effects of awareness and concern on willingness indicates that while environmental concern has a significant positive effect on the willingness to support crowdfunded green projects, environmental awareness is insignificant.

The study highlights that government policy should be aimed at not just increasing awareness but at increasing the knowledge of the impacts of climate change issue that will raise concern and improve participation of residents in green projects. The study focuses on a rarely studied population, the people of Brunei.