IDEAS home Printed from https://ideas.repec.org/a/gam/jsusta/v3y2011i4p596-604d11901.html
   My bibliography  Save this article

Optimizing the Physical, Mechanical and Hygrothermal Performance of Compressed Earth Bricks

Author

Listed:
  • Esther Obonyo

    () (Rinker School of Building Construction, PO Box 115703, Gainesville, FL 32611, USA)

Abstract

The paper is based on findings from research that assesses the potential for enhancing the performance of compressed earth bricks. A set of experiments was carried out to assess the potential for enhancing the bricks’ physical, mechanical and hygrothermal performance through the design of an optimal stabilization strategy. Three different types of bricks were fabricated: soil-cement, soil-cement-lime, and soil-cement-fiber. The different types of bricks did not exhibit significant differences in performances when assessed on the basis of porosity, density, water absorption, and compressive strength. However, upon exposure to elevated moisture and temperature conditions, the soil-cement-fiber bricks had the highest residual strength (87%). The soil-cement and soil-cement-lime bricks had residual strength values of 48.19 and 46.20% respectively. These results suggest that, like any other cement-based material, compressed earth brick properties are affected by hydration-triggered chemical and structural changes occurring in the matrix that would be difficult to isolate using tests that focus on “bulk” changes. The discussion in this paper presents findings from a research effort directed at quantifying the specific changes through an analysis of the microstructure.

Suggested Citation

  • Esther Obonyo, 2011. "Optimizing the Physical, Mechanical and Hygrothermal Performance of Compressed Earth Bricks," Sustainability, MDPI, Open Access Journal, vol. 3(4), pages 1-9, March.
  • Handle: RePEc:gam:jsusta:v:3:y:2011:i:4:p:596-604:d:11901
    as

    Download full text from publisher

    File URL: http://www.mdpi.com/2071-1050/3/4/596/pdf
    Download Restriction: no

    File URL: http://www.mdpi.com/2071-1050/3/4/596/
    Download Restriction: no

    References listed on IDEAS

    as
    1. Esther Obonyo & Joseph Exelbirt & Malarvizhi Baskaran, 2010. "Durability of Compressed Earth Bricks: Assessing Erosion Resistance Using the Modified Spray Testing," Sustainability, MDPI, Open Access Journal, vol. 2(12), pages 1-11, November.
    Full references (including those not matched with items on IDEAS)

    More about this item

    Keywords

    hygrothermal loads; compressed earth bricks; deterioration; microstructure;

    JEL classification:

    • Q - Agricultural and Natural Resource Economics; Environmental and Ecological Economics
    • Q0 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - General
    • Q2 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Renewable Resources and Conservation
    • Q3 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Nonrenewable Resources and Conservation
    • Q5 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics
    • Q56 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Environment and Development; Environment and Trade; Sustainability; Environmental Accounts and Accounting; Environmental Equity; Population Growth
    • O13 - Economic Development, Innovation, Technological Change, and Growth - - Economic Development - - - Agriculture; Natural Resources; Environment; Other Primary Products

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jsusta:v:3:y:2011:i:4:p:596-604:d:11901. See general information about how to correct material in RePEc.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (XML Conversion Team). General contact details of provider: http://www.mdpi.com/ .

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service hosted by the Research Division of the Federal Reserve Bank of St. Louis . RePEc uses bibliographic data supplied by the respective publishers.