Influence of internal curing on the pore size distribution of high strength concrete
| Autor: | Kwang-Myong Lee, Young Cheol Choi, Joo-Hyung Kim, Seul Woo Choi |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Pore size
Cement Materials science 0211 other engineering and technologies 02 engineering and technology Building and Construction Microporous material 021001 nanoscience & nanotechnology Compressive strength 021105 building & construction General Materials Science Composite material 0210 nano-technology Curing (chemistry) Civil and Structural Engineering Shrinkage High strength concrete |
| Zdroj: | Construction and Building Materials. 192:50-57 |
| ISSN: | 0950-0618 |
| DOI: | 10.1016/j.conbuildmat.2018.10.130 |
| Popis: | Internal curing methods, which supply water inside concrete using highly absorbent materials, have been investigated to reduce early-age shrinkage in high strength concrete. This study investigates changes in the concrete pore structure caused by internal curing. High strength concrete was mixed with 0–25% replacement of fine aggregate with expanded lightweight aggregate, the compressive strength and autogenous shrinkage of the specimens were measured, and a micropore analysis was performed. The increase in shrinkage reduction with increasing expanded lightweight aggregate replacement was confirmed, observing that the hydration and meso-pore concentration in the cement matrix increased, resulting in a denser structure. |
| Databáze: | OpenAIRE |
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