Characterization of Separability of Carbon Textile Reinforced Concrete for Increased Material Sustainability

Author(s): Magdalena K. Kimm(1), Nils Gerstein(1), Lia Weiler(2), Anya Vollpracht(2) and Thomas Gries(1)
Paper category: Proceedings
Book title: Proceedings of the 71st RILEM Annual Week & ICACMS 2017,Chennai,India, 3rd -8th September 2017
Editor(s): Manu Santhanam
Ravindra Gettu
Radhakrishna G. Pillai
Sunitha K. Nayar
ISBN: 978-2-35158-196-4
ISBN: 978-2-35158-190-2 (Set)
e-ISBN: 978-2-35158-191-9:
Publisher: Published by RILEM Publications S.A.R.L.
Publication year: 2017
Pages: 118-125
Total Pages: 8
Language : English

Abstract: In recent years, huge investigations on textile reinforced concrete (TRC) have been attracted
attention. Although construction, reconstruction and dismantling of buildings create the major
amount of waste compared to all waste generation (60 % of resource consumption and 50 %
of waste production in Germany [1]), potential for separating, recovering and recycling of the
innovative composite material TRC has not been investigated so far. For this purpose, carbon
fiber reinforcement textiles were coated with different polymers to analyze its effect on the
recoverability of reinforcement from TRC. TRC specimen containing the coated textiles with
epoxy resin, carboxylated styrene-butadiene rubber and potassium silicate solution were
destroyed with a jaw crusher. All failure modes were collected and compared. Textiles coated
with epoxy resin were regained from the concrete matrix with minor defects. Styrene-butadiene
coated textiles have shown major damages on the textile. Textiles coated with a potassium
silicate solution could not be recovered from the concrete matrix. Additionally, particle-size
distribution of the crushed fine grained concrete matrix was determined and compared to
standard distribution curves of mortars. With those results potential applications for reuse of
the concrete as well as the textile reinforcement can be made accessible.

Online publication : 2017
Publication type : full_text
Public price (Euros) : 0.00