Mitigating early age shrinkage of Ultra-High Performance Concrete by using Super Absorbent Polymers (SAP)

2008 ◽  
pp. 847-853 ◽  
Author(s):  
L Dudziak ◽  
V Mechtcherine ◽  
S Hempel
Keyword(s):  
High Performance ◽  
High Performance Concrete ◽  
Early Age ◽  
Ultra High Performance Concrete

scholarly journals Shrinkage in Ultra-High Performance Concrete Overlays on Concrete Bridge Decks

2019 ◽  
Vol 271 ◽  
pp. 07008
Author(s):  
William Toledo ◽  
Leticia Davila ◽  
Ahmed Al-Basha ◽  
Craig Newtson ◽  
Brad Weldon
Keyword(s):  
High Performance ◽  
High Performance Concrete ◽  
Bridge Decks ◽  
Plastic State ◽  
Early Age ◽  
Concrete Bridge ◽  
Ultra High Performance Concrete ◽  
Concrete Overlays ◽  
Concrete Bridge Decks ◽  
Normal Strength

This paper investigates the shrinkage and thermal effects of an ultra-high performance concrete (UHPC) mixture proposed for use as an overlay material for concrete bridge decks. In this study, early-age and longer-term shrinkage tests were performed on the locally produced UHPC. Thermal and shrinkage effects in normal strength concrete slabs overlaid with UHPC were also observed. Early-age shrinkage testing showed that approximately 55% of the strain occurred in the plastic state and may not contribute to bond stresses since the elastic modulus of the UHPC should be small at such early ages. Thickness of the substrate and amount of reinforcing steel were important factors for shrinkage in the slabs. The thickest slab experienced greater shrinkage than thinner slabs. Comparing this slab to a thinner slab with the same reinforcement indicated that reinforcement ratio is more important than the area of steel.

Early-age shrinkage development of ultra-high-performance concrete under heat curing treatment

2017 ◽  
Vol 131 ◽  
pp. 767-774 ◽  
Author(s):  
Wengui Li ◽  
Zhengyu Huang ◽  
Gongqiu Hu ◽  
Wen Hui Duan ◽  
Surendra P. Shah
Keyword(s):  
High Performance ◽  
High Performance Concrete ◽  
Early Age ◽  
Ultra High Performance Concrete ◽  
Heat Curing

scholarly journals Early-Age Strength of Ultra-High Performance Concrete in Various Curing Conditions

Materials ◽  
2015 ◽  
Vol 8 (8) ◽  
pp. 5537-5553 ◽  
Author(s):  
Jong-Sup Park ◽  
Young Kim ◽  
Jeong-Rae Cho ◽  
Se-Jin Jeon
Keyword(s):  
High Performance ◽  
High Performance Concrete ◽  
Early Age ◽  
Ultra High Performance Concrete ◽  
Curing Conditions
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