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Mariateresa Tesoro
Department of Civil Engineering Sciences and Architecture, Polytechnic University of Bari, Via E. Orabona 4, 70125 Bari, Italy

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Journal article
Published: 04 May 2021 in Fibers
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Raw earth is one of the oldest building materials, which is suitable for various uses: from the construction of load-bearing walls to use for plasters and finishes. The presence of straw fibers can give different behavior to this material. The present paper illustrates preliminary sensory and qualitative analyses, and subsequent laboratory tests that allow the characterization of the raw earth material with straw fibers for rammed earth constructions through mechanized compaction and the identification of a compatible earth mortar. The raw material considered in this study is mainly clayey; for this reason, a mix design usable with the pisé (or clay) technique has been developed. Cylindrical samples have been made through a press and subject to unconfined compression and indirect tensile tests. The results of the tests showed consistent tensile and compressive strength values in the context of earth materials. At the same time, a study for the realization of a mortar with the same base soil was carried out considering four mixtures, in order to investigate the best compromise between workability, shrinkage and compressive strengths. The purpose of the study was to investigate the mechanical characteristics of the local material through preliminary and laboratory tests, to classify it according to the Unified Soil Classification System (USCS) and to verify its suitability for a possible use in the construction field.

ACS Style

Maria Sabbà; Mariateresa Tesoro; Cecilia Falcicchio; Dora Foti. Rammed Earth with Straw Fibers and Earth Mortar: Mix Design and Mechanical Characteristics Determination. Fibers 2021, 9, 30 .

AMA Style

Maria Sabbà, Mariateresa Tesoro, Cecilia Falcicchio, Dora Foti. Rammed Earth with Straw Fibers and Earth Mortar: Mix Design and Mechanical Characteristics Determination. Fibers. 2021; 9 (5):30.

Chicago/Turabian Style

Maria Sabbà; Mariateresa Tesoro; Cecilia Falcicchio; Dora Foti. 2021. "Rammed Earth with Straw Fibers and Earth Mortar: Mix Design and Mechanical Characteristics Determination." Fibers 9, no. 5: 30.