A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Technological Performance of Cellulose Fibre Reinforced Cement-Based Mortars
This work presents the study of the effect of the incorporation of cellulose fibres in mortars, as waste recycling alternatives in the productive chain of construction, in favor of sustainability policy. Building construction is an area of great potential to absorb waste in its productive chain, producing alternative materials and thus reducing the environmental impact with the reuse of by-products or waste from other industries and its own chain. In the search for innovation, the use of vegetable fibres and particularly cellulose fibres in cementitious composites have been studied throughout the world and in mortars, such fibre-matrix interaction allows to enhance certain properties inherent to the material. Thus, this research was aimed to evaluate the effect of fibre in the deformability of the mortars, focusing on mechanical behavior from comparing mortars with fibre and mortar without fibre, these called reference mortar. To obtain the composites were formulated experimental dosages of mixed mortar cement and lime in a ratio of 1:1:6 by weight with the addition of fibre at 5 and 10% of the total mix weight, and a water/agglomerates rate fixed at 0.60. The analysis between the mortars was made in the fresh state with tests for measuring the consistency and the weight density and in the hardened state with tests of tensile strength when bending and compression strength tests. The results showed that the greater the fibre content added smaller are the tensile and compression strengths, however antagonistically, the higher the fibre content the higher is the value of tenacity and deformability of the composite clearly characterized at the load versus deformation curve. Thus, even supporting lower load bearing, the use of the cellulose fibres provides a greater bearing capacity to deformations required for the mortar, particularly in post crack stage, absorbing more energy before rupture.
Technological Performance of Cellulose Fibre Reinforced Cement-Based Mortars
This work presents the study of the effect of the incorporation of cellulose fibres in mortars, as waste recycling alternatives in the productive chain of construction, in favor of sustainability policy. Building construction is an area of great potential to absorb waste in its productive chain, producing alternative materials and thus reducing the environmental impact with the reuse of by-products or waste from other industries and its own chain. In the search for innovation, the use of vegetable fibres and particularly cellulose fibres in cementitious composites have been studied throughout the world and in mortars, such fibre-matrix interaction allows to enhance certain properties inherent to the material. Thus, this research was aimed to evaluate the effect of fibre in the deformability of the mortars, focusing on mechanical behavior from comparing mortars with fibre and mortar without fibre, these called reference mortar. To obtain the composites were formulated experimental dosages of mixed mortar cement and lime in a ratio of 1:1:6 by weight with the addition of fibre at 5 and 10% of the total mix weight, and a water/agglomerates rate fixed at 0.60. The analysis between the mortars was made in the fresh state with tests for measuring the consistency and the weight density and in the hardened state with tests of tensile strength when bending and compression strength tests. The results showed that the greater the fibre content added smaller are the tensile and compression strengths, however antagonistically, the higher the fibre content the higher is the value of tenacity and deformability of the composite clearly characterized at the load versus deformation curve. Thus, even supporting lower load bearing, the use of the cellulose fibres provides a greater bearing capacity to deformations required for the mortar, particularly in post crack stage, absorbing more energy before rupture.
Technological Performance of Cellulose Fibre Reinforced Cement-Based Mortars
Building Pathology
Delgado, João M. P. Q. (editor) / Rezende, E. C. L. (author) / Silva, A. J. Costa e (author) / Delgado, J. M. P. Q. (author) / Azevedo, A. C. (author)
2022-03-15
26 pages
Article/Chapter (Book)
Electronic Resource
English
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