Self-consolidating concrete homogeneity
Concrete instability may lead to the non-uniform distribution of its properties. The homogeneity of self-consolidating concrete in vertically cast members was therefore explored in this study, analyzing both resistance to segregation and pore structure uniformity. To this end, two series of concrete...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Consejo Superior de Investigaciones Científicas
2007-08-01
|
| Series: | Materiales de Construccion |
| Subjects: | |
| Online Access: | http://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/55 |
| _version_ | 1818940993655799808 |
|---|---|
| author | M. O. Valcuende C. Parra J. C. Jarque |
| author_facet | M. O. Valcuende C. Parra J. C. Jarque |
| author_sort | M. O. Valcuende |
| collection | DOAJ |
| description | Concrete instability may lead to the non-uniform distribution of its properties. The homogeneity of self-consolidating concrete in vertically cast members was therefore explored in this study, analyzing both resistance to segregation and pore structure uniformity. To this end, two series of concretes were prepared, self-consolidating and traditional vibrated materials, with different w/c ratios and types of cement. The results showed that selfconsolidating concretes exhibit high resistance to segregation, albeit slightly lower than found in the traditional mixtures. The pore structure in the former, however, tended to be slightly more uniform, probably as a result of less intense bleeding. Such concretes are also characterized by greater bulk density, lower porosity and smaller mean pore size, which translates into a higher resistance to pressurized water. For pore diameters of over about 0.5 μm, however, the pore size distribution was found to be similar to the distribution in traditional concretes, with similar absorption rates. |
| first_indexed | 2024-12-20T06:48:28Z |
| format | Article |
| id | doaj.art-8903bff8cd204a168049fade57141284 |
| institution | Directory Open Access Journal |
| issn | 0465-2746 1988-3226 |
| language | English |
| last_indexed | 2024-12-20T06:48:28Z |
| publishDate | 2007-08-01 |
| publisher | Consejo Superior de Investigaciones Científicas |
| record_format | Article |
| series | Materiales de Construccion |
| spelling | doaj.art-8903bff8cd204a168049fade571412842022-12-21T19:49:39ZengConsejo Superior de Investigaciones CientíficasMateriales de Construccion0465-27461988-32262007-08-0157287375210.3989/mc.2007.v57.i287.5550Self-consolidating concrete homogeneityM. O. Valcuende0C. Parra1J. C. Jarque2Universidad Politécnica de Valencia (Valencia)Universidad Politécnica de Cartagena (Cartagena)Instituto de Tecnología Cerámica. Universidad Jaime I de Castellón (Castellón)Concrete instability may lead to the non-uniform distribution of its properties. The homogeneity of self-consolidating concrete in vertically cast members was therefore explored in this study, analyzing both resistance to segregation and pore structure uniformity. To this end, two series of concretes were prepared, self-consolidating and traditional vibrated materials, with different w/c ratios and types of cement. The results showed that selfconsolidating concretes exhibit high resistance to segregation, albeit slightly lower than found in the traditional mixtures. The pore structure in the former, however, tended to be slightly more uniform, probably as a result of less intense bleeding. Such concretes are also characterized by greater bulk density, lower porosity and smaller mean pore size, which translates into a higher resistance to pressurized water. For pore diameters of over about 0.5 μm, however, the pore size distribution was found to be similar to the distribution in traditional concretes, with similar absorption rates.http://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/55self-consolidating concretesegregationporosityabsorptionpermeability |
| spellingShingle | M. O. Valcuende C. Parra J. C. Jarque Self-consolidating concrete homogeneity Materiales de Construccion self-consolidating concrete segregation porosity absorption permeability |
| title | Self-consolidating concrete homogeneity |
| title_full | Self-consolidating concrete homogeneity |
| title_fullStr | Self-consolidating concrete homogeneity |
| title_full_unstemmed | Self-consolidating concrete homogeneity |
| title_short | Self-consolidating concrete homogeneity |
| title_sort | self consolidating concrete homogeneity |
| topic | self-consolidating concrete segregation porosity absorption permeability |
| url | http://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/55 |
| work_keys_str_mv | AT movalcuende selfconsolidatingconcretehomogeneity AT cparra selfconsolidatingconcretehomogeneity AT jcjarque selfconsolidatingconcretehomogeneity |