Title: CEMENTS FOR OBTAINING HIGH PERFORMANCE CONCRETE
Abstract:: In mix proportioning of concrete ordinary Portland cement remains a basic hydraulic binder. Because of more and more frequent use of high-performance criteria for quality of concrete there is a need...: In mix proportioning of concrete ordinary Portland cement remains a basic hydraulic binder. Because of more and more frequent use of high-performance criteria for quality of concrete there is a need to improve mechanical, rheological and durability properties of cement. For this purpose, concrete technology today uses materials that have filler effect and puzzolanic action known as mineral admixtures. The properties of mineral admixtures improve cement matrix on microstructure level during the hydration of cement. European Standards, EUROCODE-2, parti and ENV 197-1, Cement, composition, specification and criteria of correlation (acceptance) parti ordinary cement give us directions for use of silica fume and fly ash in chemical composition of cement. An experimental programme was carried out to determine the influence of silica fume on properties of cement. Silica fume was added as a cementitous replacing material in dosage of 5, 8 and 12% by mass cement to obtain a convenient hydraulic binder for production of high-performance concrete. All relevant properties related to physical and mechanical performance: standard consistency, setting time, flexural strength and compressive strength were analyzed. In order to investigate optimum dosage for the concrete mix design, varying content of superplasticizer and silica fume was used. INTRODUCTION EXPERIMENTAL RESULTS ANALYSIS OF TEST RESULTS DISCUSSION ON TEST RESULTS CONCLUSIONS REFERENCESRead More
Publication Year: 2003
Publication Date: 2003-01-01
Language: en
Type: book-chapter
Indexed In: ['crossref']
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