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Effect of Sporosarcina Pasteurii on the strength properties of compressed earth specimens

Author(s):




Medium: journal article
Language(s): Spanish
Published in: Materiales de Construccion, , n. 329, v. 68
Page(s): 143
DOI: 10.3989/mc.2018.12316
Abstract:

Microbial biodeposition of calcite induction for improving the performance of rammed earth is a research area that must be analysed in a representative environment. This analysis must consider the compaction force, particle size distribution and curing process as production variables. This paper investigates the effects of adding specific bacteria, Sporosarcina Pasteurii, into compressed earth cubes and the effect of production variables. Uniaxial compressive tests and direct shear tests have been conducted for 80 specimens. The results indicate that calcite precipitation interacts with the drying process of clay/silt resulting in reducing the compressive strength, the apparent cohesion and the friction angle. Finally, bacterial activity, which is more likely in samples cured in a high humidity environment, tends to reduce the dilatancy effect.

Structurae cannot make the full text of this publication available at this time. The full text can be accessed through the publisher via the DOI: 10.3989/mc.2018.12316.
  • About this
    data sheet
  • Reference-ID
    10516941
  • Published on:
    10/12/2020
  • Last updated on:
    19/02/2021
 
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