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Author Araya-Letelier, G.; Antico, F.C.; Carrasco, M.; Rojas, P.; Garcia-Herrera, C.M.
Title Effectiveness of new natural fibers on damage-mechanical performance of mortar Type
Year 2017 Publication Construction And Building Materials Abbreviated Journal Constr. Build. Mater.
Volume 152 Issue Pages 672-682
Keywords Animal fiber; Fiber-reinforced mortar; Mechanical properties; Damage mitigation
Abstract Addition of fibers to cement-based materials improve tensile and flexural strength, fracture toughness, abrasion resistance, delay cracking, and reduce crack widths. Natural fibers have recently become more popular in the construction materials community. This investigation addresses the characterization of a new animal fiber (pig hair), a massive food-industry waste worldwide, and its use in mortars. Morphological, physical and mechanical properties of pig hair are determined in order to be used as reinforcement in mortars. A sensitivity analysis on the volumes of fiber in mortars is developed. The results from this investigation showed that reinforced mortars significantly improve impact strength, abrasion resistance, plastic shrinkage cracking, age at cracking, and crack widths as fiber volume increases. Other properties such as compressive and flexural strength, density, porosity and modulus of elasticity of reinforced mortars are not significantly affected by the addition of pig hair. (C) 2017 Elsevier Ltd. All rights reserved.
Address [Araya-Letelier, G.; Carrasco, M.] Univ Adolfo Ibanez, Fac Ingn & Ciencias, Ave Diagonal Las Torres 2640, Santiago 7941169, Chile, Email: gerardo.araya@uai.cl;
Corporate Author Thesis
Publisher Elsevier Sci Ltd Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0950-0618 ISBN Medium
Area Expedition Conference
Notes WOS:000411545600062 Approved
Call Number UAI @ eduardo.moreno @ Serial 803
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Author Araya-Letelier, G.; Concha-Riedel, J.; Antico, F.C.; Valdes, C.; Caceres, G.
Title Influence of natural fiber dosage and length on adobe mixes damage-mechanical behavior Type
Year 2018 Publication Construction And Building Materials Abbreviated Journal Constr. Build. Mater.
Volume 174 Issue Pages 645-655
Keywords Adobe mixes; Animal fiber; Mechanical properties; Damage control; Fiber-reinforced
Abstract This study addresses the use of a natural fiber (pig hair), a massive food-industry waste, as reinforcement in adobe mixes (a specific type of earthen material). The relevance of this work resides in the fact that earthen materials are still widely used worldwide because of their low cost, availability, and low environmental impact. Results show that adobe mixes' mechanical-damage behavior is sensitive to both (i) fiber dosage and (ii) fiber length. Impact strength and flexural toughness are increased, whereas shrinkage distributed crack width is reduced. Average values of compressive and flexural strengths are reduced as fiber dosage and length increase, as a result of porosity generated by fiber clustering. Based on the results of this work a dosage of 0.5% by weight of dry soil using 7 mm fibers is optimal to improve crack control, flexural toughness and impact strength without statistically affecting flexural and compressive strengths. (C) 2018 Elsevier Ltd. All rights reserved.
Address [Araya-Letelier, G.] Pontificia Univ Catolica Chile, Fac Ingn, Escuela Construcc Civil, Ave Vicuna Mackenna 4860, Santiago 7820436, Chile, Email: gerardo.araya@uc.cl;
Corporate Author Thesis
Publisher Elsevier Sci Ltd Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0950-0618 ISBN Medium
Area Expedition Conference
Notes WOS:000433656300061 Approved
Call Number UAI @ eduardo.moreno @ Serial 873
Permanent link to this record