Evaluation of the Mechanical Properties of a 3D-Printed Mortar
The mechanical properties of 3D-printed mortars are determined in terms of their compressive and direct tensile bond strengths. To determine such properties using existing methods, a preliminary experiment was conducted. The compressive strength of the printed mortar was compared to mold-casted spec...
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| Veröffentlicht in: | Materials 2019-12, Vol.12 (24), p.4104 |
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| creator | Lee, Hojae Kim, Jang-Ho Jay Moon, Jae-Heum Kim, Won-Woo Seo, Eun-A |
| description | The mechanical properties of 3D-printed mortars are determined in terms of their compressive and direct tensile bond strengths. To determine such properties using existing methods, a preliminary experiment was conducted. The compressive strength of the printed mortar was compared to mold-casted specimens and it was found that the compressive strength decreased by ~30%. Among the fabrication variables, an increase in nozzle height negatively influenced the direct tensile bond strength. For the same conditions and age, the direct tensile strength decreased by as much as 16-29% when the number of layers increased from 2 to 6. When the specimens were fabricated using a specially designed stainless steel frame and core drill, followed by extraction and the application of physical impact, the 28 days compressive strength of the specimen decreased by ~50%. |
| doi_str_mv | 10.3390/ma12244104 |
| format | Article |
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To determine such properties using existing methods, a preliminary experiment was conducted. The compressive strength of the printed mortar was compared to mold-casted specimens and it was found that the compressive strength decreased by ~30%. Among the fabrication variables, an increase in nozzle height negatively influenced the direct tensile bond strength. For the same conditions and age, the direct tensile strength decreased by as much as 16-29% when the number of layers increased from 2 to 6. When the specimens were fabricated using a specially designed stainless steel frame and core drill, followed by extraction and the application of physical impact, the 28 days compressive strength of the specimen decreased by ~50%.</description><identifier>ISSN: 1996-1944</identifier><identifier>EISSN: 1996-1944</identifier><identifier>DOI: 10.3390/ma12244104</identifier><identifier>PMID: 31817981</identifier><language>eng</language><publisher>Switzerland: MDPI AG</publisher><subject>3-D printers ; Bonding strength ; Cement ; Compressive strength ; Concrete ; Coring ; Density ; Mechanical properties ; Mortars (material) ; Research methodology ; Stainless steel ; Stainless steels ; Steel frames ; Tensile strength ; Three dimensional printing ; Viscosity</subject><ispartof>Materials, 2019-12, Vol.12 (24), p.4104</ispartof><rights>2019 by the authors. Licensee MDPI, Basel, Switzerland. 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To determine such properties using existing methods, a preliminary experiment was conducted. The compressive strength of the printed mortar was compared to mold-casted specimens and it was found that the compressive strength decreased by ~30%. Among the fabrication variables, an increase in nozzle height negatively influenced the direct tensile bond strength. For the same conditions and age, the direct tensile strength decreased by as much as 16-29% when the number of layers increased from 2 to 6. When the specimens were fabricated using a specially designed stainless steel frame and core drill, followed by extraction and the application of physical impact, the 28 days compressive strength of the specimen decreased by ~50%.</abstract><cop>Switzerland</cop><pub>MDPI AG</pub><pmid>31817981</pmid><doi>10.3390/ma12244104</doi><orcidid>https://orcid.org/0000-0002-5138-8282</orcidid><orcidid>https://orcid.org/0000-0003-1424-0657</orcidid><oa>free_for_read</oa></addata></record> |
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| source | MDPI - Multidisciplinary Digital Publishing Institute; PubMed Central (Open access); Full-Text Journals in Chemistry (Open access); EZB Electronic Journals Library; PubMed Central Open Access |
| subjects | 3-D printers Bonding strength Cement Compressive strength Concrete Coring Density Mechanical properties Mortars (material) Research methodology Stainless steel Stainless steels Steel frames Tensile strength Three dimensional printing Viscosity |
| title | Evaluation of the Mechanical Properties of a 3D-Printed Mortar |
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