scholarly journals Comparative Study of Concrete on the Effect of Fire between Conventional Concrete and Polypropylene Fibers

2017 ◽  
Vol V (XI) ◽  
pp. 1910-1920
Author(s):  
Gurinder Singh
Keyword(s):  
Comparative Study ◽  
Polypropylene Fibers ◽  
Conventional Concrete

scholarly journals STUDI KOMPARASI ANTARA PRACETAK MASIF DAN FLY SLAB STUDI KASUS: STRUKTUR GEDUNG RUSUNAWA SURAKARTA

2018 ◽  
Vol 6 (2) ◽  
pp. 71-80
Author(s):  
Redaksi Tim Jurnal
Keyword(s):  
Comparative Study ◽  
Technological Development ◽  
Concrete Slab ◽  
Precast Concrete ◽  
Reduction Reaction ◽  
Structural Elements ◽  
Conventional Concrete ◽  
Style Transfer ◽  
Central Java ◽  
Concrete Plate

Fly slab is one of the precast concrete slab technological development that has been researched and patented by Ir . Sulistyana in 2011. The concept is how to reduce the mass of precast concrete slab with makes ribs on the concrete slab. To minimize the volume of concrete plate and while maintaining tensile area to makes the style transfer mechanism of concrete to reinforcement or otherwise, are expected to reduce the mass of the structure without reducing strength. Comparative study will be conducted in this research based on Planning of Building Construction Rusunawa in Surakarta, Central Java. This comparative study is done by compare the results of the structural design Rusunawa existing Surakarta and ready to build using conventional precast concrete massive, with a new structure plan Rusunawa Surakarta with using fly slab as material plate, beam and column structural elements using conventional concrete. Based on the analysis results, showed reduction in the volume of concrete and reinforcement elements beam and coloumn Rusunawa Surakarta structure is 20,25% and 6,3 %. Reduction reaction in the vertical structure of the Rusunawa Building in Surakarta is 16,93%.

scholarly journals Comparative study of the physical and mechanical properties between the conventional concrete using brita 0 and rolled pebble of the city of Manaus-Am

2018 ◽  
Vol 4 (15) ◽  
Author(s):  
Jesus Ramon Almada Lima de Paula ◽  
Murilo Ferreira dos Santos ◽  
Alexandre de Pina Braga ◽  
Darlei dos Anjos Lavor ◽  
David Barbosa Alencar ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Comparative Study ◽  
Physical And Mechanical Properties ◽  
Conventional Concrete ◽  
The City

scholarly journals Behaviour of Polypropylene Fibre on the Mechanical Charateristics of Fibre Reinforced Concrete using Polypropylene Fibers

2020 ◽  
Vol 10 (1) ◽  
pp. 231-234
Keyword(s):  
Flexural Strength ◽  
Compression Strength ◽  
Concrete Structures ◽  
High Strength ◽  
Polypropylene Fibers ◽  
Engineering Structures ◽  
Conventional Concrete ◽  
Different Temperatures ◽  
Physical And Chemical ◽  
The Impact

Concrete as a building material, used most extensively has revolutionized the construction industry by its properties like high strength and workability. However, the engineering structures are surrounded by the combustible materials, making them prone to the blast impact loading as well as fire. Concrete structures which are subjected to the conditions of high temperature, are susceptible to physical and chemical changes leading to their degradation. The fire can cause the damage to the structure as well as human lives. The need of the hour is to study the impact of fire on the concrete structures as it is mostly used as the construction entity in buildings and other structures. In our research paper, the use of Polypropylene fibers (PPFs) in concrete and their impact on various attributes of concrete like Compression stréngth, split tensile and flexurál strength has been studied. The impact of PPFs on concrete at different temperatures has also been analyzed. The results have shown that the compression strength got raised due to the inclusion of PPFs in the concrete by 9.08%, splitting tensile by 59.25% and flexural strength by 27.36% after 4 weeks of curing. The addition of PPFs to the concrete has also resulted in an increase in strength then the conventional concrete at temperatures of 400oC and 800oC.

scholarly journals ANÁLISE DA APLICAÇÃO DE CONCRETO COM ADIÇÃO DE MACROFIBRAS ESTRUTURAIS SINTÉTICAS E MICROFIBRAS DE VIDRO ANTI-CRACK AR EM PISOS

2016 ◽  
Vol 12 (1) ◽  
Author(s):  
Caroline Marção Wolf de Goes ◽  
Patricia Stella Pucharelli Fontanini ◽  
Lia Lorena Pimentel ◽  
Ana Elisabete Paganelli G. de Avila Jacintho
Keyword(s):  
Carbon Content ◽  
Glass Fibers ◽  
Impact Resistance ◽  
Polypropylene Fibers ◽  
Low Carbon ◽  
Conventional Concrete ◽  
Synthetic Fibers ◽  
Advantages And Disadvantages ◽  
Elasticity Module

RESUMO: As fibras vêm sendo muito utilizadas para reforçar o concreto, e hoje, existe uma grande variedade delas, por exemplo, fibras de polipropileno, fibras sintéticas, fibras com baixo teor de carbono, e fibras de polietileno. O emprego das fibras nas misturas cimentícias promove diversas melhorias ao concreto armado, como, aumento da resistência à fadiga e ao impacto; tenacidade à flexão; aumento da capacidade de absorção de energia, que transferem tensões através de fissuras, fazendo com que reduza sua propagação e expansão; e maior ductilidade, pois em concretos não reforçados, após a primeira fissura, o concreto se torna deficiente. Nesta pesquisa foram apresentadas as principais vantagens da adição de macrofibras estruturais sintéticas e microfibras de vidro ao concreto em pisos para redução de fissuras. O presente trabalho tem o objetivo de apresentar um Estudo de Caso e propor dois novos traços de concreto com adição de macrofibras estruturais sintéticas e microfibras de vidro como reforço de pisos e um traço referência sem adição de fibras. Foram analisadas as resistências à compressão axial, diametral, tração na flexão, impacto e módulo de elasticidade, dos novos traços e do concreto utilizado no Estudo de Caso, bem como, foram apresentadas as vantagens e desvantagens dessa mistura em relação ao concreto convencional. ABSTRACT: The fibers have been widely used for reinforcing concrete, and today, there are a plenty of them, like, polypropylene fibers, synthetic fibers, fibers with low carbon content andpolyethylene fibers. The use of fibers in cementitious mixtures promotes several improvements to the concrete, as, increased resistance to fatigue and impact, flexural toughness, increased capacity of energy absorption, that transfer stresses through the cracks, reducing the propagation and expansion, and more ductility, because unreinforced concrete, after the first fissure, the concrete becomes disabled. This research will analyze the main advantages of the application of macro synthetic structural fibers and micro AR glass fibers to concrete floors to reduce cracks. This paper aims to present a case study and two new features have been proposed using macro synthetic structural fibers and micro AR glass fibers addition on reinforced concrete on floors and one feature without fibers. Resistance to axial compression, diametrical compression, flexural thoughness, impact resistance and elasticity module were analyzed of the new features and the concrete used at case study, as well as the advantages and disadvantages of this mixture comparing to conventional concrete.

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