TY - JOUR
T1 - Rheological properties of ultra-high-performance concrete — An overview
AU - Khayat, Kamal Henri
AU - Meng, W.
AU - Vallurupalli, K.
AU - Teng, Le
N1 - Publisher Copyright:
© 2019 Elsevier Ltd
PY - 2019/10
Y1 - 2019/10
N2 - Ultra-high-performance concrete (UHPC) is attracting increasing interests worldwide due to its superior mechanical properties and durability. Securing proper rheological properties can affect fiber dispersion and alignment with marked effect on UHPC performance. Tailoring the rheological properties of UHPC to secure enhanced performance is not widely considered in the mixture design stage. In this paper, an overview of the rheological properties of UHPC, applicable flow models, measurement techniques and errors associated with the interpretation of rheological measurements are discussed. The effect of various constituent materials on rheological properties of UHPC is presented. This includes the cementitious materials, sand, chemical admixtures, fibers, nanomaterials, and internal curing agents. Most importantly, the paper discusses the rheological properties requirements of UHPC and strategies to control rheology of UHPC targeted for different applications, such as repair and rehabilitation, bridge deck panel connections, construction of structural and architectural elements, and digital fabrication.
AB - Ultra-high-performance concrete (UHPC) is attracting increasing interests worldwide due to its superior mechanical properties and durability. Securing proper rheological properties can affect fiber dispersion and alignment with marked effect on UHPC performance. Tailoring the rheological properties of UHPC to secure enhanced performance is not widely considered in the mixture design stage. In this paper, an overview of the rheological properties of UHPC, applicable flow models, measurement techniques and errors associated with the interpretation of rheological measurements are discussed. The effect of various constituent materials on rheological properties of UHPC is presented. This includes the cementitious materials, sand, chemical admixtures, fibers, nanomaterials, and internal curing agents. Most importantly, the paper discusses the rheological properties requirements of UHPC and strategies to control rheology of UHPC targeted for different applications, such as repair and rehabilitation, bridge deck panel connections, construction of structural and architectural elements, and digital fabrication.
UR - http://www.scopus.com/inward/record.url?scp=85071233811&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85071233811&partnerID=8YFLogxK
U2 - 10.1016/j.cemconres.2019.105828
DO - 10.1016/j.cemconres.2019.105828
M3 - Review article
AN - SCOPUS:85071233811
SN - 0008-8846
VL - 124
JO - Cement and Concrete Research
JF - Cement and Concrete Research
M1 - 105828
ER -