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Author (up) Araya-Letelier, G.; Concha-Riedel, J.; Antico, F.C.; Sandoval, C. pdf  doi
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  Title Experimental mechanical-damage assessment of earthen mixes reinforced with micro polypropylene fibers Type Journal Article
  Year 2019 Publication Construction and Building Materials Abbreviated Journal Constr. Build. Mater.  
  Volume 198 Issue Pages 762-776  
  Keywords Micro polypropylene fibers; Fiber-reinforced earthen mixes; Conservation; Impact strength; Damage  
  Abstract The addition of engineered polypropylene fibers to earthen materials offers new opportunities to control their damage evolution and mechanical properties that altogether provides more reliability and extends the life span of these materials. The latter is of special interest considering that earthen materials are still widely used in the form of adobe blocks for earthen masonry, cob, rammed earth or even earthen mortars for new construction and conservation of historic buildings. In this work, the effect of dosage of micro polypropylene fibers (MPPF) in the damage-mechanical performance of earthen mixes is studied experimentally. Part of the experiments includes two different tests to assess distributed and localized cracking of reinforced earth subject to restrained drying shrinkage. In addition, the experimental results showed that the incorporation of MPPF increases up to 83 times the impact strength and 11 times the flexural toughness of earthen mixes. Other mechanical properties such as compressive and flexural strength are not statistically affected by the incorporation of MPPF.  
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  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0950-0618 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number UAI @ eduardo.moreno @ Serial 940  
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