Method Development to Evaluate Steel Fiber Performance in Concrete with Expansive Additives under Restrained Hardening Conditions: Preliminary Results

IOP Conference Series: Materials Science and Engineering 2017
Artūrs Lukašenoks, Rolands Cepurītis

Novel steel molds in form of a rigid cubical shell were developed in order to investigate single steel fiber pull-out resistance in concrete with expansive additive under restrained hardening conditions. The developed steel molds simulate internal (from steel fibers) and external (from friction against sub-base) restraints that hinder expansion of the concrete in a flooring slab structure installed on ground. Samples with a single hooked-end steel fiber, with and without expansive additive were manufactured and tested in the developed mold geometry. The results show that restrained concrete expansion positively affects single fiber pull-out behavior, i.e. fiber delamination resistance is increased by 29.7 % and pull-out peak load by 10.8 %.

Atslēgas vārdi
Method development to evaluate steel fiber performance in concrete with expansive additives under restrained conditions
DOI
10.1088/1757-899X/251/1/012078
Hipersaite
http://iopscience.iop.org/article/10.1088/1757-899X/251/1/012078

Lukašenoks, A., Cepurītis, R. Method Development to Evaluate Steel Fiber Performance in Concrete with Expansive Additives under Restrained Hardening Conditions: Preliminary Results. No: IOP Conference Series: Materials Science and Engineering, Latvija, Rīga, 27.-29. septembris, 2017. IOP Publishing: IOP Publishing, 2017, 1.-7.lpp. ISSN 1757-8981. e-ISSN 1757-899X. Pieejams: doi:10.1088/1757-899X/251/1/012078

Publikācijas valoda
English (en)