Abstract
High-performance concrete (HPC) is widely used in construction according to great mechanical properties, but it has a high risk of shrinkage cracking due to autogenous shrinkage stress. Therefore, the aim of this research was to investigate the effect of a combination of expansive admixture (EA) and shrinkage reducing admixture (SA) on the autogenous shrinkage of high-performance concrete without heat treatment. Two different EA to cement weight ratios of 0.0, 5.0%, and two different SA to cement weight ratios of 0.0, and 1.0% were combined and considered. To investigate the differences in the time-zero conditions effect on the autogenous shrinkage behaviors, four different initial points were compared. The test results indicate that the EA and/or SA content was conductive to a little bite increase compressive strength (22.6-37.9%) and tensile strength ( < 4.8%). According to the synergistic effect of the EA and SA on the HPC, the autogenous shrinkage significantly decreased ( < 50%), as compared to those specimens with only one type of admixture (EA or SA). Furthermore, all the specimens incurred restrained autogenous shrinkage cracks at an early age, except the specimen using the combined EA and SA. Therefore, it can be concluded that the combination of EA and SA is effective for improving the properties of HPC.
| Original language | English |
|---|---|
| Article number | 2514 |
| Journal | Materials |
| Volume | 10 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - 2018 Dec 11 |
Fingerprint
Keywords
- Autogenous shrinkage
- Expansive admixture
- High-performance concrete
- Shrinkage reducing admixture
- Synergistic effect
ASJC Scopus subject areas
- Materials Science(all)
Cite this
Synergistic benefits of using expansive and shrinkage reducing admixture on high-performance concrete. / Yuan, Tian Feng; Kim, Seong Kyum; Koh, Kyung Teak; Yoon, Young Soo.
In: Materials, Vol. 10, No. 12, 2514, 11.12.2018.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Synergistic benefits of using expansive and shrinkage reducing admixture on high-performance concrete
AU - Yuan, Tian Feng
AU - Kim, Seong Kyum
AU - Koh, Kyung Teak
AU - Yoon, Young Soo
PY - 2018/12/11
Y1 - 2018/12/11
N2 - High-performance concrete (HPC) is widely used in construction according to great mechanical properties, but it has a high risk of shrinkage cracking due to autogenous shrinkage stress. Therefore, the aim of this research was to investigate the effect of a combination of expansive admixture (EA) and shrinkage reducing admixture (SA) on the autogenous shrinkage of high-performance concrete without heat treatment. Two different EA to cement weight ratios of 0.0, 5.0%, and two different SA to cement weight ratios of 0.0, and 1.0% were combined and considered. To investigate the differences in the time-zero conditions effect on the autogenous shrinkage behaviors, four different initial points were compared. The test results indicate that the EA and/or SA content was conductive to a little bite increase compressive strength (22.6-37.9%) and tensile strength ( < 4.8%). According to the synergistic effect of the EA and SA on the HPC, the autogenous shrinkage significantly decreased ( < 50%), as compared to those specimens with only one type of admixture (EA or SA). Furthermore, all the specimens incurred restrained autogenous shrinkage cracks at an early age, except the specimen using the combined EA and SA. Therefore, it can be concluded that the combination of EA and SA is effective for improving the properties of HPC.
AB - High-performance concrete (HPC) is widely used in construction according to great mechanical properties, but it has a high risk of shrinkage cracking due to autogenous shrinkage stress. Therefore, the aim of this research was to investigate the effect of a combination of expansive admixture (EA) and shrinkage reducing admixture (SA) on the autogenous shrinkage of high-performance concrete without heat treatment. Two different EA to cement weight ratios of 0.0, 5.0%, and two different SA to cement weight ratios of 0.0, and 1.0% were combined and considered. To investigate the differences in the time-zero conditions effect on the autogenous shrinkage behaviors, four different initial points were compared. The test results indicate that the EA and/or SA content was conductive to a little bite increase compressive strength (22.6-37.9%) and tensile strength ( < 4.8%). According to the synergistic effect of the EA and SA on the HPC, the autogenous shrinkage significantly decreased ( < 50%), as compared to those specimens with only one type of admixture (EA or SA). Furthermore, all the specimens incurred restrained autogenous shrinkage cracks at an early age, except the specimen using the combined EA and SA. Therefore, it can be concluded that the combination of EA and SA is effective for improving the properties of HPC.
KW - Autogenous shrinkage
KW - Expansive admixture
KW - High-performance concrete
KW - Shrinkage reducing admixture
KW - Synergistic effect
UR - http://www.scopus.com/inward/record.url?scp=85058239672&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85058239672&partnerID=8YFLogxK
U2 - 10.3390/ma11122514
DO - 10.3390/ma11122514
M3 - Article
AN - SCOPUS:85058239672
VL - 10
JO - Materials
JF - Materials
SN - 1996-1944
IS - 12
M1 - 2514
ER -