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Commenced in January 2007 Frequency: Monthly Edition: International Publications Count: 29526


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7965
Low-Cost Eco-Friendly Building Material: A Case Study in Ethiopia
Authors:
Abstract:
This work presents a low-cost and eco-friendly building material named Agrostone panel. Africa-s urban population is growing at an annual rate of 2.8% and 62% of its population will live in urban areas by 2050. As a consequence, many of the least urbanized and least developed African countries- will face serious challenges in providing affordable housing to the urban dwellers. Since the cost of building materials accounts for the largest proportion of the overall construction cost, innovating low-cost building material is vital. Agrostone panel is used in housing projects in Ethiopia. It uses raw materials of agricultural/industrial wastes and/or natural minerals as a filler, magnesium-based chemicals as a binder and fiberglass as reinforcement. Agrostone panel reduces the cost of wall construction by 50% compared with the conventional building materials. The pros and cons of Agrostone panel as well as the use of other waste materials as a raw material to make the panel more sustainable, low-cost and better properties are discussed.
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References:

[1] United Nations, World Urbanization Prospects: The 2007 Revision. New York: United Nations, 2008.
[2] UN-HABITAT, Ethiopia: Addis Ababa Urban Profile. Nairobi: UNON, 2008.
[3] E.-Y. Alemayehu. Revisiting «Slums», Revealing Responses: Urban upgrading in tenant-dominated inner-city settlements, in Addis Ababa, Ethiopia. (PhD Thesis) Trondheim: Norwegian University of Science and Technology, 2008.
[4] AAHDPO, Agrostone Production Technology. Addis Ababa: Addis Ababa Housing Development Project Office, 2007.
[5] M.-Y. Haregewoin, "Integrated Housing Development Programs for Urban Poverty Alleviation and Sustainable Urbanization: The Case of Addis Ababa." ENHR International Conference on Sustainable Urban Areas. Rotterdam. 2007.
[6] W. Davison, "Ethiopian Cement Plants to Double Capacity amid Construction-Industry Boom." Accessed June 26, 2011, from http://www.bloomberg.com/news/print/2011-05-20/ethiopian-cementplants- to-double-capacity-amid-construction-industry-boom.html
[7] Ethiopian Investment Agency, "Investment Opportunity Profile for Manufacturing of Cement in Ethiopia." 2008.
[8] Ministry of Finance and Economic Development, Federal Democratic Republic of Ethiopia. "Growth and Transformation Plan (2010/11 - 2014/15)." Addis Ababa. 2010.
[9] S.-K. Desta. Utilization of Ethiopian Natural Pozzolans. (P.hD Thesis) Trondheim: Norwegian University of Science and Technology, 2003.
[10] J.-J. Beaudoin, and V.-S. Ramachandran, "Strength Development in Magnesium Oxcychloride and Other Cement." Cement and Concrete Research, Vol. 5. pp.617 - 630. 1975.
[11] Z. Li, and K.-C. Chau, "Influence of Molar Ratios on Properties of Magnesium Oxcychloride Cement." Cement and Concrete Research, Vol. 37, pp. 866-870, 2007.
[12] D. Deng, "The Mechanism for Soluble Phosphates to Improve the Water Resistance of Magnesium Oxychloride Cement." Cement and Concrete Research, Vol. 33, pp.1311 - 1317, 2003.
[13] Ministry of Agriculture, Federal Democratic Republic of Ethiopia and CARD. "Towards Implementation of National Rice Research and Development Strategies of Ethiopia.", 2011
[14] M.-M. Tashima, C.A.-R. Silva, J.-L. Akasaki and M.-B. Barbosa, "Influence of Rice Husk Ash in Mechanical Characteristics of Concrete" 4th International ACI/CANMET Conference on Quality of Concrete Structures and Recent Advances in Concrete Materials and Testing, Olinda, pp. 780-790, 2005.
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