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Article
Publication date: 6 September 2011

Suzanne H. Hammad

The purpose of this paper is to explore and illuminate the various ways in which different generations experience and interpret their home and land in one divided Palestinian…

767

Abstract

Purpose

The purpose of this paper is to explore and illuminate the various ways in which different generations experience and interpret their home and land in one divided Palestinian village in the West Bank.

Design/methodology/approach

The study is based on mental maps, walk‐alongs and semi‐structured interviews.

Findings

The paper explores the intergenerational geographies of adults and children from one household located in the village of Bilin and outlines the dynamics of continuity and change in their attitudes to and experiences of contested place and space.

Originality/value

The paper suggests that generational perspectives are essential for acquiring a holistic, meaningful understanding of the complexities and subtleties of contested places.

Details

International Journal of Sociology and Social Policy, vol. 31 no. 9/10
Type: Research Article
ISSN: 0144-333X

Keywords

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Article
Publication date: 7 June 2024

Salem H. Abdelgader, Marzena Kurpinska, Hakim Salem Abdelgader, Farzam Omidi Moaf and Mugahed Amran

The research investigates the impact of concrete design methods on performance, emphasizing environmental sustainability. The study compares the modified Bolomey method and…

37

Abstract

Purpose

The research investigates the impact of concrete design methods on performance, emphasizing environmental sustainability. The study compares the modified Bolomey method and Abrams’ law in designing concretes. Significant differences in cement consumption and subsequent CO2 emissions are revealed. The research advocates for a comprehensive life cycle assessment, considering factors like compressive strength, carbonation resistance, CO2 emissions, and cost. The analysis underscores the importance of evaluating concrete not solely based on strength but also environmental impact. The study concludes that a multicriteria approach, considering the entire life cycle, is essential for sustainable concrete design, addressing durability, environmental concerns, and economic factors.

Design/methodology/approach

The study employed a comprehensive design and methodology approach, involving the formulation and testing of 20 mixed concretes with strengths ranging from 25 MPa to 45 MPa. Two distinct design methods, the modified Bolomey method (three equations method) and Abrams’ law, were utilized to calculate concrete compositions. Laboratory experiments were conducted to validate the computational models, and subsequent analyses focused on assessing differences in cement consumption, compressive strength, CO2 emissions, and concrete resistance to carbonation. The research adopted a multidisciplinary perspective, integrating theoretical analysis, laboratory testing, and life cycle assessment to evaluate concrete performance and sustainability.

Findings

Conclusion from the study includes substantial variations (56%–112%) in cement content, depending on the calculation method. Abrams' law proves optimal for compressive strength (30 MPa–45 MPa), while the three equations method yields higher actual strength (30%–51%). Abrams' law demonstrates optimal cement use, but concrete designed with the three equations method exhibits superior resistance to aggressive environments. Cement content exceeding 450 kg/m³ is undesirable. Concrete designed with Abrams' law is economically favorable (12%–30% lower costs). The three equations method results in higher CO2 emissions (38–83%), emphasizing the need for life cycle assessment.

Originality/value

This study’s originality lies in its holistic evaluation of concrete design methods, considering environmental impact, compressive strength, and cost across a comprehensive life cycle. The comparison of the traditional Abrams' law and the three equations method, along with detailed laboratory tests, contributes novel insights into optimal cement use and concrete performance. The findings underscore the importance of a multicriteria approach, emphasizing sustainability and economic viability. The research provides valuable guidance for engineers and policymakers seeking environmentally conscious and economically efficient concrete design strategies, addressing a critical gap in the field of construction materials and contributing to sustainable infrastructure development.

Details

International Journal of Building Pathology and Adaptation, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2398-4708

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