TY - JOUR
T1 - The characteristic of very high-performance concrete (VHPC)
AU - Shahib Al Bari, M.
AU - Agustin, Andini Dwi
AU - Ekaputri, Januarti Jaya
N1 - Publisher Copyright:
© Published under licence by IOP Publishing Ltd.
PY - 2023
Y1 - 2023
N2 - A Very High-Performance Concrete (VHPC) has compressive strength in the range 120-150 MPa and high flowability. However, there is no VHPC mix as a repairing grout in Indonesia. This study presents the mix design of VHPC using Indonesian by-product materials to achieve compressive strength of 120 MPa. A sequence experimental method determined the suitable material to replace fine sand, ground quartz and superplasticizer. Then, the optimum mix design was tested with compressive strength, splitting tensile strength, slump flow, permeability, and shrinkage tests. In addition, the effect of 35 mm length hook-end steel fiber in the VHPC by 2% of volume was observed. The optimum mix design used cement, silica fume, and glass powder as binder with the ratio of 3:1:1. The ratio of sand and binder was 0.88. The water to binder ratio (w/c) was 0.11 using superplasticizer and accelerator which was kept on 4.3% of cement weight each. This mix design achieved a compressive strength of 128 MPa at 28th day. VHPC had high shrinkage whether volumetric or longitudinal. However, the steel fiber was able to restrain the shrinkage and increased the tensile strength. Nevertheless, the hook-end steel fiber is not recommended because its large size decreased the compaction and eventually decreased the compressive strength.
AB - A Very High-Performance Concrete (VHPC) has compressive strength in the range 120-150 MPa and high flowability. However, there is no VHPC mix as a repairing grout in Indonesia. This study presents the mix design of VHPC using Indonesian by-product materials to achieve compressive strength of 120 MPa. A sequence experimental method determined the suitable material to replace fine sand, ground quartz and superplasticizer. Then, the optimum mix design was tested with compressive strength, splitting tensile strength, slump flow, permeability, and shrinkage tests. In addition, the effect of 35 mm length hook-end steel fiber in the VHPC by 2% of volume was observed. The optimum mix design used cement, silica fume, and glass powder as binder with the ratio of 3:1:1. The ratio of sand and binder was 0.88. The water to binder ratio (w/c) was 0.11 using superplasticizer and accelerator which was kept on 4.3% of cement weight each. This mix design achieved a compressive strength of 128 MPa at 28th day. VHPC had high shrinkage whether volumetric or longitudinal. However, the steel fiber was able to restrain the shrinkage and increased the tensile strength. Nevertheless, the hook-end steel fiber is not recommended because its large size decreased the compaction and eventually decreased the compressive strength.
UR - http://www.scopus.com/inward/record.url?scp=85166573219&partnerID=8YFLogxK
U2 - 10.1088/1755-1315/1195/1/012033
DO - 10.1088/1755-1315/1195/1/012033
M3 - Conference article
AN - SCOPUS:85166573219
SN - 1755-1307
VL - 1195
JO - IOP Conference Series: Earth and Environmental Science
JF - IOP Conference Series: Earth and Environmental Science
IS - 1
M1 - 012033
T2 - 8th International Conference of Euro Asia Civil Engineering Forum 2022, EACEF 2022
Y2 - 12 October 2022 through 13 October 2022
ER -