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Author |
Araya-Letelier, G.; Concha-Riedel, J.; Antico, F.C.; Sandoval, C. |
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Title |
Experimental mechanical-damage assessment of earthen mixes reinforced with micro polypropylene fibers |
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Year |
2019 |
Publication |
Construction And Building Materials |
Abbreviated Journal |
Constr. Build. Mater. |
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Volume |
198 |
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Pages |
762-776 |
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Keywords |
Micro polypropylene fibers; Fiber-reinforced earthen mixes; Conservation; Impact strength; Damage |
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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. (C) 2018 Elsevier Ltd. All rights reserved. |
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Address |
[Araya-Letelier, G.] Pontificia Univ Catolica Chile, Escuela Construcc Civil, Casilla 306,Correo 22, Santiago, Chile, Email: gerardo.araya@uc.cl; |
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Publisher |
Elsevier Sci Ltd |
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English |
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ISSN |
0950-0618 |
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Notes |
WOS:000457952200066 |
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Call Number |
UAI @ eduardo.moreno @ |
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978 |
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