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This paper aims to produce lightweight concrete by combining aerated concrete with expanded polystyrene beads concrete to create structural aerated-polystyrene lightweight concrete that satisfies the criteria of sustainability for thermal and sound insulation properties and the structural criteria of having satisfactory compressive strength for structural elements.

The experimental study was carried out to reach the largest compressive strength while maintaining the lowest possible density by preparing nine mixes of concrete, involving different ratios of aluminum waste powder and polystyrene beads as 0%, 0.2% and 0.3% and 0%, 0.1% and 0.2%, respectively, by weight of cement to produce the lightweight concrete with different densities. The performance of mechanical properties, thermal conductivity, ultrasonic pulse velocity, density, modulus of elasticity, acoustic impedance and scanning electron microscopy were studied and discussed.

Results showed that aerated-expended polystyrene beads concrete had the most suitable properties when the proportions of aluminum waste powder and expanded polystyrene beads were 0.2% and 0.1%, respectively. The compressive strength, density, thermal conductivity and acoustic impedance were 38.5 MPa, 1,768 Kg/m³, 0.358 W/(m.k) and 4.91 Kg/m² s, respectively.

The experimental work was done using aluminum scrap waste powder as an expanding agent to produce aerated concrete and combining it with expanded polystyrene bead concrete to produce structural aerated-polystyrene concrete, which contains fine materials (silica fume and local natural raw limestone) and superplasticizers.

This study aims to construct comprehensive index of Tahfiz empowerment taking into account various factors such as social, intellectual, physical and religious, as well as economical. According to Maqasid Shariah, Malaysia has to establish a Tahfiz Empowerment Index (TEI) for the implementation of National Tahfiz Education Policy (NTEP) to ensure that Tahfiz institutions assist students’ development in a productive and meaningful way consistent with Islamic values and national educational objectives.

This study proposes the TEI using Maqasid Shariah to offer an organized framework for evaluating and improving the quality and social relevance of Tahfiz institutions. The TEI weaves the five fundamental aims of Maqasid Shariah – preserving religion, protecting life, fostering intellect, preserving lineage and ensuring economic sustainability – into measurable indicators. Comprehensive review of the literature supports the TEI and its using experts, and the TEI assigns equal weightage to each dimension and has provisions to address biases.

The TEI consists of five fundamental aspects: preservation of religion, life, intellect, lineage and economic sustainability. The results imply that systematic way of evaluating and enhancing performance of Tahfiz institution is crucial as the study proves the institution’s importance in the development of its students.

The TEI provides a systematic framework to be used in future empirical research that searches for the operation of Tahfiz institutions and their outcome. Moreover, it serves as a theoretical basis for further research on Islamic education and its alignment with Maqasid Shariah. It also propounds a holistic and inclusive approach encompassing improvement in educational possibilities.

The TEI has useful managerial and policy implications for the improvement of Tahfiz institutions. It can be used as a benchmark whenever the policymaker is in doubt about the quality, safety and equitable distribution of resources in education to achieve Malaysia’s NTEP objectives. The TEI also provides practical, tangible performance indicators for evaluation and benchmarking, resource allocation and strategy planning. It integrates Maqasid Shariah principles, focusing on areas like spiritual and intellectual development, economic sustainability and community engagement.

The TEI as part of Sustainable Development Goals 2030 contributes to social benefits: integrating the principles of Islamic education and human dignity and social welfare. It erases the existing gaps by providing the necessary means through such practices as offering vocational training to underprivileged students, contributes to social responsibility by enhancing mental health and encouraging services to the community, and ultimately improves community involvement through volunteerism and collaborations. Also, TEI directs the distribution of funds toward programs that should benefit underprivileged learners, thus maintain sustainable fund allocation as well as promoting social responsibility as per NTEP objectives.

This study presents a novel index grounded on Maqasid Shariah which is useful for assessing and improving the Tahfiz institutions. It gives a definite and systematic method of evaluating these institutions’ degrees of empowerments to meet all the diverse roles they play in the society.

This study examined Muslim civil officers’ cash waqf giving decisions in Malaysia.

Using the theory of planned behaviour (TPB), the effects of the said factors on the decisions were examined using logistic analysis. A total of 583 Muslim civil officers were involved in this work. The discrete dependent variable measures whether a civil officer is a donor or non-donor cash waqf.

Results obtained indicate significant influences of attitude, subjective norm, perceived behavioural control and some demographic items on cash waqf giving decisions in Malaysia.

The findings attained were narrowed in terms of chosen geographical settings and the theory used.

This study provides a theoretical benchmark to enhance cash waqf giving decisions, which in turn can affect the waqf collection by the waqf institutions in Malaysia.

This study uniquely develops Muslim civil officers’ cash waqf giving decisions framework (CAGDEF) in measuring cash waqf giving decisions in Malaysia.

The peer review history for this article is available at: https://publons.com/publon/10.1108/IJSE-12-2023-0964.