Review of economic and environmental benefits of earthen materials for housing in Africa

Adegun, Olumuyiwa Bayode; Adedeji, Y. M. D.

doi:10.1016/j.foar.2017.08.003

Cited by 76 publications

(38 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This could have changed the characteristics of the mud substrates making them more stable, much less porous and more suitable for Fludora ® Fusion compared to the traditional mud-plastered wall. This finding shows that Fludora ® Fusion could be highly effective in semiurban and usually more populated areas in many African settings where the addition of cement to mud for construction and plastering of earthen houses is becoming common [23]. Based on results from our studies and others, Fludora ® Fusion was added to the WHO's list of prequalified IRS formulations for vector control becoming the first IRS insecticide to contain a mixture of active ingredients [7].…”

Section: Discussionmentioning

confidence: 89%

“…Previous studies examining the content of mud from Cové, Benin, demonstrated a high silt content which makes it less suitable for construction (unpublished data). The addition of a small amount of cement is in line with a common local practice in Benin and other parts of Africa which is aimed at improving the durability and aesthetic of inner wall plastering in earthen houses [23]. This could have changed the characteristics of the mud substrates making them more stable, much less porous and more suitable for Fludora ® Fusion compared to the traditional mud-plastered wall.…”

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Efficacy of Fludora® Fusion (a mixture of deltamethrin and clothianidin) for indoor residual spraying against pyrethroid-resistant malaria vectors: laboratory and experimental hut evaluation

Fongnikin¹,

Houeto²,

Agbevo³

et al. 2020

Parasites Vectors

View full text Add to dashboard Cite

Background A new generation of IRS insecticides which can provide improved and prolonged control of pyrethroid-resistant malaria vector populations are being developed. Fludora® Fusion is a new IRS insecticide containing a mixture of deltamethrin and clothianidin, a neonicotinoid. Methods The efficacy of Fludora® Fusion IRS was evaluated over 11–12 months on concrete and mud substrates in laboratory bioassays and experimental huts against wild free-flying pyrethroid-resistant Anopheles gambiae (sensu lato) in Cové, Benin. A comparison was made with the two active ingredients of the mixture; clothianidin and deltamethrin, applied alone. CDC bottle bioassays were also performed to investigate resistance to clothianidin in the wild vector population. Results Fludora® Fusion induced > 80% laboratory cone bioassay mortality with both susceptible and pyrethroid-resistant An. gambiae (s.l.) for 7–9 months on concrete block substrates and 12 months on mud block substrates. The vector population at the experimental hut site was fully susceptible to clothianidin in CDC bottle bioassays. Overall mortality rates of wild free-flying pyrethroid-resistant An. gambiae (s.l.) entering the experimental huts during the 11-month trial were < 15% with deltamethrin and significantly higher with Fludora® Fusion (69–71%) and clothianidin alone (72–78%). Initial high experimental hut mortality rates with Fludora® Fusion (> 80%) only declined by 50% after 8 months. Monthly in situ wall cone bioassay mortality of susceptible mosquitoes was > 80% for 9–12 months with Fludora® Fusion and clothianidin alone. Fludora® Fusion induced significantly higher levels of early exiting of mosquitoes compared to clothianidin alone (55–60% vs 37–38%, P < 0.05). Conclusions Indoor residual spraying with Fludora® Fusion induced high and prolonged mortality of wild pyrethroid-resistant malaria vectors for 7–10 months mostly due to the clothianidin component and substantial early exiting of mosquitoes from treated huts due to the pyrethroid component. Fludora® Fusion is an important addition to the current portfolio of IRS insecticides with the potential to significantly reduce transmission of malaria by pyrethroid-resistant mosquito vectors.

show abstract

Section: Discussionmentioning

confidence: 89%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Efficacy of Fludora® Fusion (a mixture of deltamethrin and clothianidin) for indoor residual spraying against pyrethroid-resistant malaria vectors: laboratory and experimental hut evaluation

Fongnikin¹,

Houeto²,

Agbevo³

et al. 2020

Parasites Vectors

View full text Add to dashboard Cite

show abstract

“…However, many studies have demonstrated clearly that previous public housing schemes in Nigeria failed to assist the targeted population [30], largely because of the high cost of housing units provided [31]. Resultantly, many studies have argued that the challenges in accessing housing inputs such as land [32], finance and building materials [31,33]; in addition to the burden of providing infrastructure [15], were also responsible for the cost escalation of public housing units beyond the grabs of an average household in the country [28][29][30]). Table 1.…”

Section: Federal Government Intervention On Urban Housing Problemsmentioning

confidence: 99%

Exploring the Severity of Factors Influencing Sustainable Affordable Housing Choice: Evidence from Abuja, Nigeria

Ezennia

Hoskara

2019

Sustainability

View full text Add to dashboard Cite

It is a shared global experience that a house which is already expensive will become even more costly. This experience is partly because housing supply has always failed to satisfy demand. In many developing countries, the issues of affordable housing supply center on shortage and poor distribution. Recent studies on this subject reveal that distribution-related problems can be addressed through choice reconciliations. Therefore, understanding how housing affordability problems affect housing choice enables a broader interpretation of the issue. Thus, critical in housing policy making and implementation, as well as towards sustainable development/delivery of affordable housing programs. In Nigeria, housing choice has never been investigated, neither has it been studied within the framework of sustainability. It is not a common strategy to incorporate sustainability into the concept of affordable housing choice. However, integrating sustainability into the concept of affordable housing choice allows for the introduction of wide-ranging and broader criteria such as environmental and social factors, which are routinely neglected in housing choice literature. Therefore, this study aims at filling this literature gap by identifying the determinants of sustainable affordable housing choice (SAHC) in the study area. The purpose is to establish the severity of the identified factors based on respondents’ perception and discuss the agreement levels amongst the three respondent groups. Regarding this, a comprehensive list of 43 different factors contributing to SAHC were determined through a systematic literature review. Based on which a survey of 83 affordable housing applicants, 102 and 69 residents of affordable housing estate and shantytown respectively, was performed. Through statistical analysis, results reveal that the factors affecting SAHC cuts across economic, social and environmental dimensions. Also, there is an agreement (correlation) by each group and the overall ranking of all participants. The tests confidence level for all inferential statistics was 95%, which implies 0.05 level of significance. These figures indicate that the data were obtained from the same population and points to the relatedness of factors identified. Using principal component analysis (PCA), the 43 different factors were narrowed down to seven. The study findings show that “Housing price in relation to income” and “rental price in relation to income” are the most severe factors with relatively high overall scoring, which is consistent with similar studies in this domain. However, it was uncovered that respondents placed high priorities on other non-economic factors like security (safety), housing location and building type. The study presents an interesting topic, usually unexplored in the field of decisions and public policy. It argues that at present, the housing affordability concerns and affordable housing choice determinants in the study area cannot be restrictedly defined in economic terms. Our findings build on previous studies and reiterate the need to consider a broader view towards affordable housing problem. It offers salient information to stakeholders and real estate companies, which could aid sustainable development/delivery of housing projects that are affordable.

show abstract

“…In this register, the CEB is not apprehended as a material that allows for long-term or definitive investment. Similar research in seventeen African countries, including Burkina Faso, has also shown that although earthen construction is generally cheaper and offer more thermal comfort, the low durability and low resistance are the main reasons for its low adoption in African cities (Adegun & Adedeji, 2017).…”

Section: Social Representations Related To the Lack Of The Durability Of Cebmentioning

confidence: 76%

The Paradox around the Social Representations of Compressed Earth Block Building Material in Burkina Faso: The Material for the Poor or the Luxury Material?

Zoungrana¹,

Bologo²,

Traoré³

et al. 2021

JSS

View full text Add to dashboard Cite

Compressed earth brick (CEB) is a masonry material which has the thermal properties that are better adapted to the hot and dry climate of tropical and Sahelian context like in Burkina Faso. Despite these advantages, CEB are still not largely used in the construction sector in the city of Ouagadougou. In order to better understand the obstacles linked to this low diffusion of CEB, the present empirical study proposes a deep analysis of the social representations of construction using CEB in the urban place. The results show that four main categories of social representations coexist in the construction sector using CEB: 1) the perception of CEB as the "material for the poor", 2) the perception of CEB as "improved or precarious adobe" inherited from successive public policies to rehabilitate the material, 3) the symbolic perceptions linked to the red color of the brick and the durability of the material, and 4) the contemporary post-materialist perception (luxury materials), according to a minority of wealthy elites who have built their houses using CEB. These social representations are essential to take into consideration for the implementation of new public housing policies in general and promotion for the usage of CEB in particular. This could accompany the studies which aim at improving the technical performances of CEB and lead towards the socio-economic acceptance of the materials.

show abstract

Review of economic and environmental benefits of earthen materials for housing in Africa

Cited by 76 publications

References 29 publications

Efficacy of Fludora® Fusion (a mixture of deltamethrin and clothianidin) for indoor residual spraying against pyrethroid-resistant malaria vectors: laboratory and experimental hut evaluation

Efficacy of Fludora® Fusion (a mixture of deltamethrin and clothianidin) for indoor residual spraying against pyrethroid-resistant malaria vectors: laboratory and experimental hut evaluation

Exploring the Severity of Factors Influencing Sustainable Affordable Housing Choice: Evidence from Abuja, Nigeria

The Paradox around the Social Representations of Compressed Earth Block Building Material in Burkina Faso: The Material for the Poor or the Luxury Material?

Contact Info

Product

Resources

About