Feasibility Tests on Concrete with Very-High-Volume Supplementary Cementitious Materials
The objective of this study is to examine the compressive strength and durability of very high-volume SCM concrete. The prepared 36 concrete specimens were classified into two groups according to their designed 28-day compressive strength. For the high-volume SCM, the FA level was fixed at a weight...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2014-01-01
|
| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2014/406324 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849684994283274240 |
|---|---|
| author | Keun-Hyeok Yang Yong-Su Jeon |
| author_facet | Keun-Hyeok Yang Yong-Su Jeon |
| author_sort | Keun-Hyeok Yang |
| collection | DOAJ |
| description | The objective of this study is to examine the compressive strength and durability of very high-volume SCM concrete. The prepared 36 concrete specimens were classified into two groups according to their designed 28-day compressive strength. For the high-volume SCM, the FA level was fixed at a weight ratio of 0.4 and the GGBS level varied between the weight ratio of 0.3 and 0.5, which resulted in 70–90% replacement of OPC. To enhance the compressive strength of very high-volume SCM concrete at an early age, the unit water content was controlled to be less than 150 kg/m3, and a specially modified polycarboxylate-based water-reducing agent was added. Test results showed that as SCM ratio (RSCM) increased, the strength gain ratio at an early age relative to the 28-day strength tended to decrease, whereas that at a long-term age increased up to RSCM of 0.8, beyond which it decreased. In addition, the beneficial effect of SCMs on the freezing-and-thawing and chloride resistances of the concrete decreased at RSCM of 0.9. Hence, it is recommended that RSCM needs to be restricted to less than 0.8–0.85 in order to obtain a consistent positive influence on the compressive strength and durability of SCM concrete. |
| format | Article |
| id | doaj-art-bcce60302f644ba7ad8b32db4891654f |
| institution | DOAJ |
| issn | 2356-6140 1537-744X |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-bcce60302f644ba7ad8b32db4891654f2025-08-20T03:23:18ZengWileyThe Scientific World Journal2356-61401537-744X2014-01-01201410.1155/2014/406324406324Feasibility Tests on Concrete with Very-High-Volume Supplementary Cementitious MaterialsKeun-Hyeok Yang0Yong-Su Jeon1Department of Plant Architectural Engineering, Kyonggi University, Suwon-si, Gyeonggi-do 443-760, Republic of KoreaDepartment of Architectural Engineering, Graduate School, Kyonggi University, Suwon-si, Gyeonggi-do 443-760, Republic of KoreaThe objective of this study is to examine the compressive strength and durability of very high-volume SCM concrete. The prepared 36 concrete specimens were classified into two groups according to their designed 28-day compressive strength. For the high-volume SCM, the FA level was fixed at a weight ratio of 0.4 and the GGBS level varied between the weight ratio of 0.3 and 0.5, which resulted in 70–90% replacement of OPC. To enhance the compressive strength of very high-volume SCM concrete at an early age, the unit water content was controlled to be less than 150 kg/m3, and a specially modified polycarboxylate-based water-reducing agent was added. Test results showed that as SCM ratio (RSCM) increased, the strength gain ratio at an early age relative to the 28-day strength tended to decrease, whereas that at a long-term age increased up to RSCM of 0.8, beyond which it decreased. In addition, the beneficial effect of SCMs on the freezing-and-thawing and chloride resistances of the concrete decreased at RSCM of 0.9. Hence, it is recommended that RSCM needs to be restricted to less than 0.8–0.85 in order to obtain a consistent positive influence on the compressive strength and durability of SCM concrete.http://dx.doi.org/10.1155/2014/406324 |
| spellingShingle | Keun-Hyeok Yang Yong-Su Jeon Feasibility Tests on Concrete with Very-High-Volume Supplementary Cementitious Materials The Scientific World Journal |
| title | Feasibility Tests on Concrete with Very-High-Volume Supplementary Cementitious Materials |
| title_full | Feasibility Tests on Concrete with Very-High-Volume Supplementary Cementitious Materials |
| title_fullStr | Feasibility Tests on Concrete with Very-High-Volume Supplementary Cementitious Materials |
| title_full_unstemmed | Feasibility Tests on Concrete with Very-High-Volume Supplementary Cementitious Materials |
| title_short | Feasibility Tests on Concrete with Very-High-Volume Supplementary Cementitious Materials |
| title_sort | feasibility tests on concrete with very high volume supplementary cementitious materials |
| url | http://dx.doi.org/10.1155/2014/406324 |
| work_keys_str_mv | AT keunhyeokyang feasibilitytestsonconcretewithveryhighvolumesupplementarycementitiousmaterials AT yongsujeon feasibilitytestsonconcretewithveryhighvolumesupplementarycementitiousmaterials |