Effect of glass fiber on mechanical properties and de-icing salt scaling resistance of decorative self-consolidating cementitious material

Author(s): I. Mehdipour, S. Karimzadeh, M.H. Karimnezhad, M. Khanjani
Paper category: Conference
Book title: 8th RILEM International Symposium on Fiber Reinforced Concrete: challenges and opportunities (BEFIB 2012)
Editor(s): Joaquim A.O. Barros
Print ISBN: 978-2-35158-132-2
e-ISBN: 978-2-35158-133-9
Publisher: RILEM Publications SARL
Pages: 859 - 869
Total Pages: 10
Language: English

Abstract: 
In the recent years cement composites are highly rated amongst architects because of their sculptural qualities and interesting textures. Self-consolidating cementitious materials (SCCM) is a fluid mixture suitable for placing in complex casts without vibration. One of the most important properties regarding the design and the durability of cement composites is shrinkage which seems to be increased for SCCM. The use of fiber reduces cracking and improves the impact resistance and durability.
This research focuses on the development of SCCM reinforced with glass fiber and shows the advantages of using it in making complex geometric shapes and homogeneous textures. Four SCCM mixtures were prepared containing 0, 0.1, 0.3 and 0.5 percent of 6 mm long glass fiber (with aspect ratio of 150). In the experiments, both visual rating and total mass of the scaling residue of glass fiber reinforced SCCM according to ASTM C 672 were considered. Compression and water absorption tests were carried out to assess the safety of these decorative concrete elements. Beside, the rheological properties of fresh glass fiber reinforced SCCMs were investigated by mini-slump test. Results show that the deicer-scaling resistance of decorative self-consolidating cementitious materials is decreased by the addition of glass fiber. In addition, the compressive strength of specimen is not decreased by the addition of optimum amount fibers without any signs of fiber balling or fiber clumping in the fresh mixtures.

Online publication: 2013
Publication Type: full_text
Public price (Euros): 0.00