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Abstract

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A Circular Argument
Type: Book
ISBN: 978-1-80071-385-7

Article
Publication date: 1 August 2019

Eric Asa, Ahmed Shaker Anna and Edmund Baffoe-Twum

This paper aims to discuss the evaluation of the compressive and splitting tensile strength of concrete mixes containing different proportions of up to 20 per cent glass…

Abstract

Purpose

This paper aims to discuss the evaluation of the compressive and splitting tensile strength of concrete mixes containing different proportions of up to 20 per cent glass aggregate. Portions of sand in concretes with and without admixtures were replaced with measurements of glass aggregates.

Design/methodology/approach

“Glascrete” is a term used for concrete in which crushed glass is used as a substitute for all or part of the aggregates. Glass can be recycled many times without changing its properties, making it an ideal material in concrete. Overall, 144 cubes and 144 cylinders of glascretes were prepared with different admixtures and subjected to compressive and splitting tensile strength test.

Findings

A comparison with a 21-day control mix indicated that glass aggregates are replacing sand in concrete ranging from 5 to 20 per cent by volume, resulting in 3.8-10.6 per cent and 3.9-16.4 per cent fall in compressive and tensile strength, respectively. However, the use of mineral admixture improved the properties of the mixes at 3, 7, 14 and 21 days.

Social implications

Cities worldwide are congested, and even those with the best waste-management system would have issues with waste disposal after the year 2030. Consequently, waste management is a current issue for cities all over the world.

Originality/value

This study aims to evaluate the physical properties of mortar mixes that contain different volumes of waste glass as substitutes for fine aggregate with or without additives. Mineral additives are used to improve the mechanical properties of glascrete mixes in addition to its chemical resistance by absorbing the OH ions responsible for the possible alkali-silica reaction (ASR). It also reduces the adverse effects of mix-dimensional stability. Water-reducing admixtures are used to reduce the impact of the ASR by minimizing the amount of moisture in concrete, in effect decreasing the possible expansion of any produced gel. In this research, compressive and splitting tensile strength of concrete mortar containing waste glass of limited substitutions is evaluated.

Details

Journal of Engineering, Design and Technology , vol. 17 no. 6
Type: Research Article
ISSN: 1726-0531

Keywords

Article
Publication date: 17 September 2019

Cheng Lu Wang and Ying Jiang

The purpose of this paper is to investigate how consumers’ affective goal pursuit influences the relationship between their affect and satisfaction in services. In…

Abstract

Purpose

The purpose of this paper is to investigate how consumers’ affective goal pursuit influences the relationship between their affect and satisfaction in services. In particular, it examines when affect can directly influence satisfaction and when such an impact is mediated by perceived service quality.

Design/methodology/approach

This research explores consumers’ consumption goals in three different service contexts, i.e., a primarily pleasure-seeking hedonic service context, a primarily arousal-seeking hedonic service context and a utilitarian (non-affect-seeking) service context.

Findings

Results from two studies show that the primary affective consumption goal determines which specific affect can directly influence satisfaction. Other desirable non-primary affect influences satisfaction through the mediation of perceived service quality.

Research limitations/implications

This research focuses on the service contexts in which consumers’ primary consumption goals vary. Further research may focus on the priority and strength of a consumer’s various consumption goals in different services and study how the priority and strength of different consumption goals determine how affect influences quality and satisfaction.

Practical implications

The study provides several insights for service providers and retailers to recognize that consumers’ primary consumption goals may vary in different service contexts, for different consumers, and even at different usage situations. Accordingly, marketers need to develop different strategies for consumer with different goal pursuit in services.

Originality/value

While the literature has documented that consumer affect influences consumer satisfaction in general, it is unclear how different consumption goals influence the impact of affect on satisfaction. This research contributes to the consumer goal literature by demonstrating the importance of primary consumption goals in the post-consumption evaluation of services.

Details

Asia Pacific Journal of Marketing and Logistics, vol. 32 no. 6
Type: Research Article
ISSN: 1355-5855

Keywords

Article
Publication date: 13 September 2021

Vijaya Prasad B., Arumairaj Paul Daniel, Anand N. and Siva Kumar Yadav

Concrete is a building material widely used for the infrastructural development. Cement is the binding material used for the development of concrete. It is the primary…

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Abstract

Purpose

Concrete is a building material widely used for the infrastructural development. Cement is the binding material used for the development of concrete. It is the primary cause of CO2 emission globally. The purpose of this study is to develop sustainable concrete material to satisfy the present need of construction sector. Geopolymer concrete (GPC) is a sustainable concrete developed without the use of cement. Therefore, investigations are being conducted to replace the cement by 100% with high calcium fly ash (FA) as binding material.

Design/methodology/approach

High calcium FA is used as cementitious binder, sodium hydroxide (NaOH) and sodium silicates (Na2SiO3) are used as alkaline liquids for developing the GPC. Mix proportions with different NaOH molarities of 4, 6, 8 and 10 M are considered to attain the appropriate mix. The method of curing adopted is ambient and oven curing. Workability, compressive strength and microstructure characteristics of GPC are analysed and presented.

Findings

An increase of NaOH in the mix decreases the workability. Compressive strength of 29 MPa is obtained for Mix-I with 8 M under ambient curing. A polynomial relationship is obtained to predict the compressive strength of GPC. Scanning electron microscope analysis is used to confirm the geo-polymerisation process in the microstructure of concrete.

Originality/value

This research work focuses on finding some alternative cementitious material for concrete that can replace ordinary portland cement (OPC) to overcome the CO2 emission owing to the utilisation of cement in the construction industry. An attempt has been made to use the waste material (high calcium FA) from thermal power plant for the production of GPC. GPC concrete is the novel building material and alternative to conventional concrete. It is the ecofriendly product contributing towards the improvement of the circular economy in the construction industry. There are several factors that affect the property of GPC such as type of binder material, molarity of activator solution and curing condition. The novelty of this work lies in the approach of using locally available high calcium FA along with manufactured sand for the development of GPC. As this approach is rarely investigated, to prove the attainment of compressive strength of GPC with high calcium FA, an attempt has been made during the present investigation. Other influencing parameter which affects the strength gain has also been analysed in this paper.

Details

Journal of Engineering, Design and Technology , vol. 20 no. 2
Type: Research Article
ISSN: 1726-0531

Keywords

Article
Publication date: 11 June 2020

Martina Hutton and Teresa Heath

This paper aims to provoke a conversation in marketing scholarship about the overlooked political nature of doing research, particularly for those who research issues of…

Abstract

Purpose

This paper aims to provoke a conversation in marketing scholarship about the overlooked political nature of doing research, particularly for those who research issues of social (in)justice. It suggests a paradigmatic shift in how researchers might view and operationalise social justice work in marketing. Emancipatory praxis framework offers scholars an alternative way to think about the methodology, design and politics of researching issues of social relevance.

Design/methodology/approach

This is a conceptual paper drawing on critical theory to argue for a new methodological shift towards emancipatory praxis.

Findings

As social justice research involves a dialectical relationship between crises and critique, the concept of emancipation acts as a methodological catalyst for furthering debate about social (in)justice in marketing. This paper identifies a set of methodological troubles and challenges that may disrupt the boundaries of knowledge-making. A set of methodological responses to these issues illustrating how emancipatory research facilitates social action is outlined.

Research limitations/implications

Emancipatory praxis offers marketing scholars an alternative methodological direction in the hope that more impactful and useful ways of knowing can emerge.

Practical implications

The paper is intended to change the ways that researchers work in practical and concrete terms on issues of social (in)justice.

Social implications

Although this paper is theoretical, it argues for an alternative methodological approach to research that reorients researchers towards a politicised praxis with emancipatory relevancy.

Originality/value

Emancipatory praxis offers a new openly politicised methodological alternative for addressing problems of social relevance in marketing. As a continuous political and emancipatory task for researchers, social justice research involves empirical encounters with politics, advocacy and democratic participation, where equality is the methodological starting point for research design and decisions as much as it is the end goal.

Abstract

Details

Combatting Marginalisation by Co-creating Education
Type: Book
ISBN: 978-1-80043-451-6

Content available
Book part
Publication date: 10 December 2021

Lyndsay M.C. Hayhurst, Holly Thorpe and Megan Chawansky

Abstract

Details

Sport, Gender and Development
Type: Book
ISBN: 978-1-83867-863-0

Article
Publication date: 20 March 2017

Aditi Sarkar Sengupta and Sreejesh S

The purpose of this paper is to examine the effects of other customer perception (OCP) (Brocato et al., 2012) on focal customer’s service quality perception and revisit…

1051

Abstract

Purpose

The purpose of this paper is to examine the effects of other customer perception (OCP) (Brocato et al., 2012) on focal customer’s service quality perception and revisit intention in high- and low-involvement services and the effect of customer’s need for uniqueness (NFU) as a boundary condition of the above relationships.

Design/methodology/approach

Following a theoretical methodology, hypotheses were developed to analyze the effect of OCP, service involvement and customer’s NFU. A 2 × 2 × 2 scenario-based experiment was designed. Multivariate analysis of variance (MANOVA) was used to test the hypotheses.

Findings

The analysis reveals that the presence of conforming (versus non-conforming) other customers improves service quality perception and revisit intention of focal customers in high-involvement services, but not in low-involvement services. However, the relationship between similarity perception and outcome variables does not hold good for high-NFU customers.

Practical implications

This study suggests that conforming and non-conforming other customers are critical in forming service quality perception of high-involvement services, and highlights the boundary condition of this relationship. If service managers take service involvement and individual differences into account, and strategize their service offering aligned to their target customers, influence of other customers can be managed more efficiently.

Originality/value

As this study is one of the first empirical studies to focus on the effect of OCP on service quality perception and examine its boundary condition, it contributes significantly to the body of knowledge. Future research directions are discussed and managerial implications are proposed.

Details

Journal of Indian Business Research, vol. 9 no. 1
Type: Research Article
ISSN: 1755-4195

Keywords

Book part
Publication date: 29 September 2016

Claudine Parent, Caroline Robitaille, Marie-Christine Fortin and Anne Avril

Despite the over-representation of stepfamilies in the clientele receiving protective services, there is still very little information about the different forms of the…

Abstract

Purpose

Despite the over-representation of stepfamilies in the clientele receiving protective services, there is still very little information about the different forms of the parental commitment of stepfathers in those families. However, the characteristics of families receiving child protective services (CPS) are likely to influence the way that the stepfathers’ commitment is expressed.

Methodology/approach

Taking into account the viewpoint of mothers (n = 10), stepfathers (n = 10), and adolescents (n = 10), this study attempted to document, using the free association method and semistructured interviews, the following: (1) the representations that the members of these stepfamilies had of the stepfathers’ parental commitment; and (2) the way in which engagement was expressed in daily life.

Findings

While the participants agreed that the stepfather had a parental role to play, that is to take care of the children, they did not necessarily agree about which dimensions were the most important. Whereas the adults emphasized the child-rearing dimension of this role and the necessary cooperation with the biological parents, the adolescents insisted on the relational aspect. The results likewise indicated that these men were very committed to their partners’ adolescents and showed that even in families challenged by problems that lead to involvement with CPS, stepfathers can play a positive, supportive role.

Originality/value

This study represents an important addition to the existing literature on the role of stepfathers in that it uses multiple measures and direct reports from father figures allowing us to explore the main dimensions of stepfather commitment.

Details

Divorce, Separation, and Remarriage: The Transformation of Family
Type: Book
ISBN: 978-1-78635-229-3

Keywords

Article
Publication date: 19 September 2008

M. Reid, J. Punch, M. Collins and C. Ryan

The purpose of this paper is to examine the microstructure and evaluate the intermetallic compounds in the following lead‐free solder alloys: Sn98.5Ag1.0Cu0.5 (SAC105) Sn…

2016

Abstract

Purpose

The purpose of this paper is to examine the microstructure and evaluate the intermetallic compounds in the following lead‐free solder alloys: Sn98.5Ag1.0Cu0.5 (SAC105) Sn97.5Ag2.0Cu0.5 (SAC205) Sn96.5Ag3.0Cu0.5 (SAC305) and Sn95.5Ag4.0Cu0.5 (SAC405).

Design/methodology/approach

X‐ray diffraction (XRD) and scanning electron microscopy (SEM) were employed to identify the main intermetallics formed during solidification. Differential scanning calorimetry (DSC) was used to investigate the undercooling properties of each of the alloys.

Findings

By using XRD analysis in addition to energy dispersive spectroscopy (EDS) it was found that the main intermetallics were Cu6Sn5 and Ag3Sn in a Sn matrix. Plate‐like ε‐Ag3Sn intermetallics were observed for all four alloys. Solder alloys SAC105, SAC205 and SAC305 showed a similar microstructure, while SAC405 displayed a fine microstructure with intermetallic phases dense within the Sn matrix.

Originality/value

Currently, low‐silver content SAC alloys are being investigated due to their lower cost, however, the overall reliability of an alloy can be greatly affected by the microstructure and this should be taken into consideration when choosing an alloy. The size and number of Ag3Sn plate‐like intermetallics can affect the reliability as they act as a site for crack propagation.

Details

Soldering & Surface Mount Technology, vol. 20 no. 4
Type: Research Article
ISSN: 0954-0911

Keywords

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