Use of Thixotropy-Enhancing Agent to Reduce Formwork Pressure Exerted by Self-Consolidating Concrete

2008 ◽  
Vol 105 (1) ◽  
Keyword(s):  
Self Consolidating Concrete ◽  
Formwork Pressure

Formwork Pressure of Self-Consolidating Concrete in Tall Wall Field Applications

2005 ◽  
Vol 1914 (1) ◽  
pp. 1-7 ◽  
Author(s):  
Fernando Tejeda-Dominguez ◽  
David A. Lange ◽  
Matthew D. D'Ambrosia
Keyword(s):  
Hydrostatic Pressure ◽  
Use Of Self ◽  
Conventional Concrete ◽  
Concrete Material ◽  
Self Consolidating Concrete ◽  
Structural Applications ◽  
Formwork Pressure ◽  
High Column

The growing interest in the use of self-consolidating concrete (SCC) for a wide variety of structural applications has initiated a reexamination of its properties and current construction practices and how they compare with those of conventional concrete. One property of interest is the formwork pressure of SCC and how it relates to that of conventional concrete. This work presents the results for three tall walls (28, 21.7, and 13 ft tall) cast slowly with SCC and a 10.6-ft-high column poured quickly by using the same concrete used in one of the walls. The research demonstrates that the pressure of SCC against the formwork drops quickly just after the concrete material is placed. Measurements from the walls poured slowly show that the maximum recorded pressure falls far below the hydrostatic pressure and is closely related to the pouring rate. The experiments also reveal that the formwork pressure exerted by SCC can be revitalized if the SCC is vibrated, even if stiffening is already in progress.

Effect of wall friction on variation of formwork pressure over time in self-consolidating concrete

2011 ◽  
Vol 41 (1) ◽  
pp. 90-101 ◽  
Author(s):  
Seung Hee Kwon ◽  
Quoc Tri Phung ◽  
Hong Yong Park ◽  
Jae Hong Kim ◽  
Surendra P. Shah
Keyword(s):  
Wall Friction ◽  
Self Consolidating Concrete ◽  
Formwork Pressure ◽  
Over Time

Formwork Pressure Model for Self-Consolidating Concrete Using a Pressure Decay Signature

2018 ◽  
Vol 115 (3) ◽  
Author(s):  
Jacob D. Henschen ◽  
Daniel I. Castaneda ◽  
David A. Lange
Keyword(s):  
Self Consolidating Concrete ◽  
Pressure Decay ◽  
Formwork Pressure
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