PERFORMANCE OF STEEL AND NATURAL FIBER REINFORCED CONCRETE FOR THIN SLAB AS ROOF APPLICATION

  • Agus Kurniawan Universitas Gadjah Mada, Indonesia

Abstract

Development of roof as structural element has been expanding as a concern of its functionality as a major element of every building to protect the occupant. In service condition, it needs to be durable, leaking free and adequate strength that could be achieved by fiber addition.. The roof which is made from thin slab concrete will increase the strength while the durability is greater than ordinary roof tiles and decrease the time of installment. This research presents an experimental study on application of concrete roof slab reinforced by adding steel or natural fiber to cover up of its inability to restrain the tensile stress. Palm fiber (arenga pinnata) as products of agro-industry were used to reduce the environmental impact of these waste products. Thin concrete slab with thickness of 3 cm and dimensions of 80 x 60 cm were used with three proportions of 1, 2 and 3% respectively of fiber percentage. These types of slab were tested under uniform load using monotonic static load included one type slab with 0% proportion of fiber as a control. From the investigation of different type of proportions, it was found that both steel and natural fiber concrete slab with 2% percentage achieved the optimum proportion with maximum load was 8.5 kN and 5.5 kN respectively, while the smallest capacity of slab was by 1% percentage with 4 kN for natural fiber and and 7.2 kN steel fiber while control slab achieved 5.5 kN. The 2% of fiber percentage had optimum proportion with lower cost advantage compared to normal concrete; while the load capacity of steel fiber concrete was high which is in-line with ductility capability that could achieve 54% higher maximum load compared to the normal concrete slab and meet the requirement of the Indonesian structural standard for roof. While natural palm fiber concrete achieved same maximum capacity compared with normal concrete, but the other hand the flexural stiffness and ductility were increase almost double. Addition of fiber significantly increase the performance of slab therefore the reliability of fiber concrete slab application is promising. The result data indicated that both palm fiber and steel fiber concrete slab are feasible as an option of simpler and more economical value of tiles roof replacement

Published
2013-08-01
How to Cite
KURNIAWAN, Agus. PERFORMANCE OF STEEL AND NATURAL FIBER REINFORCED CONCRETE FOR THIN SLAB AS ROOF APPLICATION. EACEF - International Conference of Civil Engineering, [S.l.], v. 1, n. 1, p. 121, aug. 2013. Available at: <http://proceeding.eacef.com/ojs/index.php/EACEF/article/view/257>. Date accessed: 07 aug. 2020.