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Mortar Modified with Rubber Tire



Title: Mortar Modified with Rubber Tire
Author(s): de Oliveira
Paper category : conference
Book title: International RILEM Conference on the Use of Recycled Materials in Building and Structures
Editor(s): E. Vázquez, Ch. F. Hendriks and G.M.T. Janssen
Print-ISBN: 2-912143-52-7
e-ISBN: 2912143756
Publisher: RILEM Publications SARL
Publication year: 2004
Pages: 430 - 438
Total Pages: 9
Nb references: 7
Language: English


Abstract: Building construction has caused great impact on the environment, but it can bring benefits to
the population in general, and can also take measures to repair environment. Waste tire
disposal is a worldwide problem and has caused worry for public administrators, researchers
and environmentalists. The use of the crumb rubber tire remaining from the retreading process
can minimize the environmental impact and help the natural resources. The component
production in building is viable, as well as contributing to sustainable development. The aim
of this work was to investigate the possibility of the use of this waste in the civil construction
as a partial replacement for fine aggregates in modified latex mortar applied as an alternative
material that can be used in the production of masonry panels. Plain mortar was produced
with Portland cement, sand and water. The Simplex-Centroid Design was used as an
instrument to optimize the mortar composition through the simulation of the mathematical
model. The efficiency of the model was verified by the analysis of variance (ANOVA). A
Design-Expert 5 Stat Ease software package was used to determine the influence variables.
Properties of the mortar were examined in the fresh and hardened state. The composite
specimens were tested in consistency index by Flow Table Test, water absorption,
compressive strength and impact. The fractured composite micrographs were obtained by
SEM in a LEO1450VP equipment using secondary electrons mode. The incorporation of this
rubber tire into mortars showed a reduction in compressive strength while the impact
increased. Based on impact tests, it was observed that the samples with rubber tire were more
effective in absorbing the impact energy than other mortars. The results from this study
showed good potential for recycling the rubber tire and for developing an environmental
alternative that is economically viable.


Online publication: 2004-09-29
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/2912143756.048