PERFORMANCE OF STEEL MICRO FIBER REINFORCED MORTAR MIXTURES CONTAINING PLAIN, BINARY AND TERNARY CEMENTITIOUS SYSTEMS
| Autor: | Ali Mardani-Aghabaglou, Hojjat Hosseinnezhad, Kambiz Ramyar, Cihat Yüksel |
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| Přispěvatelé: | Uludağ Üniversitesi/Mühendislik Fakültesi/İnşaat Mühendisliği Bölümü., Mardani, Ali Aghabağlou, AAJ-6415-2021 |
| Rok vydání: | 2016 |
| Předmět: |
Absorption of water
Silica fume Binary mixtures Geography Planning and Development 0211 other engineering and technologies 02 engineering and technology Palm shell concrete Impact resistance Micro-fiber Steel micro fiber 021105 building & construction Architecture Ternary cementitious systems Composite material Metakaolin General Environmental Science Shrinkage Durability properties Minerals Durability improvement Fly-ash concrete Abrasion resistance 021001 nanoscience & nanotechnology Chlorine compounds Reinforcement C (programming language) Self-compacting concrete Water absorption Drying shrinkage Mechanical Properties Self Compacting Concrete Concrete Slabs 0210 nano-technology Environmental Engineering Materials science Abrasion (mechanical) Chloride ion penetration Mechanical-properties Fly ash Management Monitoring Policy and Law Durability Mineral admixtures Flexural strength Durability performance High-strength concrete Freezing-thawing resistances Toughness characterization Civil and Structural Engineering Nature and Landscape Conservation Public Health Environmental and Occupational Health Cementitious composites Steel fibers Building and Construction Mechanical and transport properties Mortar Cementitious |
| Zdroj: | Journal of Green Building. 11:109-130 |
| ISSN: | 1943-4618 1552-6100 |
| Popis: | Steel micro fibers provide strengthening, toughening and durability improvement mechanisms in cementitious composites. However, there is not much data in the literature regarding how the extent of their effectiveness changes depending on the type of matrix being reinforced. For clarifying this point, the influence of a constant volumetric ratio (1%) of 6 mm long steel micro fibers on the performance of 5 mortar mixtures was investigated and were prepared using plain, binary and ternary cementitious systems. A total of 10 mixtures were cast. The mineral admixtures used in the study include silica fume (SF), metakaolin (MK) and a Class C fly ash (FA). While the replacement levels of SF and MK were 10% by weight of the total mass of the binder, this ratio was chosen as 30% for FA. In addition to the behavior of the mixtures under compressive, flexural and impact loads, abrasion, water absorption, chloride ion penetration, freezing-thawing resistance and drying shrinkage characteristics of the mixtures were determined. Test results indicate that generally the refinement in the pore structure of the matrix provided by mineral admixtures and the increase in resistance against growth and coalescence of micro-cracks provided by fibers produce a synergistic effect and improve the investigated performances of the mixtures. |
| Databáze: | OpenAIRE |
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