Methods for reducing the cost of cementitious building components in developing countries, with particular reference to rainwater harvesting
Still, Gwilym T. (2007) Methods for reducing the cost of cementitious building components in developing countries, with particular reference to rainwater harvesting. PhD thesis, University of Warwick.
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Other (Electronic Appendix)
Official URL: http://webcat.warwick.ac.uk/record=b2222263~S15
Cementitious building components, although widely used in low-income countries, are too expensive for many applications related to low-income housing.
This thesis explores three options for reducing component cost:
1. Use of local fine aggregates, often with clay contamination, instead of low-fines sands transported from a distance.
2. Improved designs, to achieve better material economy.
3. Change of production environment, from on-site to component prefabrication followed by transport to site.
Water storage tanks for rainwater harvesting were used as the example for component design, and as a case-study for considering the effect of changing the production environment. The work showed that:
In some cases, use of local aggregates will give a cost saving of around 10%.
Improved design can give significant reduction in materials usage, of up to 40%.
Off-site prefabrication of components, followed by on-site assembly to produce the desired product, does not seem preferable to the prevelant practice of entirely on-site production from raw materials. However, factory-based manufacture of complete products, followed by transport to site, has a number of attractions over entirely on-site production.
Out of the three options examined, improved component design offers the greatest benefits for the case study considered.
|Item Type:||Thesis or Dissertation (PhD)|
|Subjects:||T Technology > TD Environmental technology. Sanitary engineering
T Technology > TA Engineering (General). Civil engineering (General)
|Library of Congress Subject Headings (LCSH):||Cement composites -- Research, Water harvesting -- Developing countries, Building materials -- Research, Construction industry -- Costs|
|Institution:||University of Warwick|
|Theses Department:||School of Engineering|
|Supervisor(s)/Advisor:||Thomas, Terry H.|
This is an abridged version for electronic use; lacks "Appendix A.1: Publications arising from materials research ratio".
|Format of File:|
|Extent:||295 leaves : ill. (some col.), charts|
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