scholarly journals AGEING MODELS AND ACCELERATED AGEING TESTS OF GLASS FIBER REINFORCED CONCRETE

2018 ◽  
Vol 10 (1) ◽  
pp. 10-17
Author(s):  
Rimvydas MOCEIKIS ◽  
Asta KIČAITĖ ◽  
Gintautas SKRIPKIŪNAS ◽  
Aleksandrs KORJAKINS
Keyword(s):  
Composite Material ◽  
Reinforced Concrete ◽  
Glass Fiber ◽  
Glass Fibers ◽  
Fiber Reinforced Concrete ◽  
Accelerated Ageing ◽  
Fiber Reinforced ◽  
Glass Fiber Reinforced ◽  
Corrosion Mechanisms ◽  
Concrete Matrix

Glass fiber reinforced concrete (GRC) is used for 40 years to create world’s most stunning and complex architectural elements due to its high mechanical properties, particularly flexural strength. Yet it is very important to note that any type of glass fibers in the concrete matrix are undergoing complex ageing processes, resulting to significant decrease of initial mechanical characteristics of this composite material under natural weathering conditions. Aspects of GRC durability are mainly dependent from the properties of fibers and interaction between them and concrete matrix. In this article, long term strength retention of this composite material is discussed, existing experimental data of weathering tests presented, and main corrosion mechanisms explained. Lack of knowledge about freeze- thaw resistance of glass fiber reinforced concrete is addressed. Finally, latest attempts of GRC durability improvement are reviewed, such as adding micro fillers, polymers to the concrete matrix and enhancing surface of fibers in Nano scale.

scholarly journals Experimental Study on the Performance of Graded Glass Fiber Reinforced Concrete (G-GRC) Based on Engineering Application

Materials ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1149
Author(s):  
Qingbiao Wang ◽  
Hongxu Song ◽  
Yue Li ◽  
Fuqiang Wang ◽  
Zhongjing Hu ◽  
...  
Keyword(s):  
Reinforced Concrete ◽  
Glass Fiber ◽  
High Performance ◽  
Glass Fibers ◽  
Engineering Application ◽  
Fiber Reinforced Concrete ◽  
High Dispersion ◽  
Fiber Reinforced ◽  
Partition Wall ◽  
Glass Fiber Reinforced

An important way to improve concrete performance is the use of alkali-resistant glass fibers (ARGFs) as reinforcement. This paper is based on the problems of the cracking of the partition wall and lining seepage in Laoshan Tunnel, Qingdao, China. Two types of ARGFs were selected as reinforcement materials for the partition wall and lining concrete: high dispersion (HD) and high performance (HP); and the compressive strength (CS), tensile strength (TS), flexural strength (FS), and impervious performance (IP) of concrete with different gradations of the two types of fibers were investigated. The results show that although the CS of graded glass fiber reinforced concrete (G-GRC) is slightly decreased, the TS, FS, and IP of G-GRC are significantly improved. When the densities of the ARGFs of HD and HP are 0.6 and 5 kg/m3, respectively, G-GRC performs best; additionally, compared with ordinary concrete, the TS, FS, and IP of G-GRC are increased by 15.86%, 14.90%, and 31.58%, respectively. Meanwhile, the tension–compression ratio is increased by 22.29%, and the mechanical properties of concrete are remarkably enhanced. The research results were successfully applied to the construction of the Laoshan tunnel, and good engineering results were obtained.

scholarly journals Durability and Physical Properties of Glass Fiber Reinforced Concrete Subjected to Elevated Temperatures

2019 ◽  
Vol 8 (11) ◽  
pp. 3845-3848
Keyword(s):  
Tensile Strength ◽  
Compressive Strength ◽  
Reinforced Concrete ◽  
Glass Fiber ◽  
Elevated Temperatures ◽  
Glass Fibers ◽  
Fiber Reinforced Concrete ◽  
Fiber Reinforced ◽  
Glass Fiber Reinforced ◽  
The Matrix

Addition of glass fibers into concrete significantly modifies its tensile strength. The fibers are placed at desired locations and orientations by the matrix surrounding it, thereby making the fibers as principal load carrying members and also protecting them from environmental damage. Glass fibers provide resistance to high temperature, and the ease of incorporating them into the matrix either in continuous or discontinuous lengths. In this work, carbonation test representing the durability of Glass Fiber Reinforced Concrete (GFRC) was carried out, and then experimental program determines the properties like compressive strength, split tensile strength and flexural strength of GFRC for 7 days and 28 days of curing, with percentage of fibers in ratios 0.5%, 1%, 1.5%, 2% and performance of GFRC at elevated temperatures of 300°c, 500°c, 700°c, 1000°c are compared with conventional concrete. The results depict that, the residual compressive strength capacity of GFRC is greater than unreinforced concrete both at elevated and normal temperatures.

scholarly journals Mechanical and thermal behaviors comparison of basalt and glass fibers reinforced concrete with two different fiber length distributions

2017 ◽  
Vol 3 (4) ◽  
pp. 155
Author(s):  
Sadık Alper Yıldızel
Keyword(s):  
Heat Transfer ◽  
Reinforced Concrete ◽  
Glass Fiber ◽  
Fiber Length ◽  
Glass Fibers ◽  
Basalt Fiber ◽  
Fiber Reinforced Concrete ◽  
Fiber Reinforced ◽  
Reinforced Composite ◽  
Glass Fiber Reinforced

This paper deals with the mechanical and thermal behavior of glass and basalt fiber reinforced concrete. Two different composites were studied containing either basalt or glass fibers. Fiber ratios were selected as 1%, 1.25% and 1.5% for glass fiber; 0.3%, 0.4% and 0.5% for basalt fibers. Fiber length was preferred as 12 mm and 24 mm. The addition of basalt fiber had very limited effect on the compressive, flexure and thermal conductivity properties compared to the glass fiber reinforced composite. The results also showed that composites having fibers with the length of 12 mm had better mechanical properties. Heat transfer simulation of the composites were also conducted. It was obtained that both fibers with the length of 12 mm had very close results on the heat transfer studies.

scholarly journals STASIUN KERETA API DENGAN KONSEP UTOPIA DI KOTA MAKASSAR

2019 ◽  
pp. 45-51
Author(s):  
Melita Thila ◽  
Noviar Nurdin Kasim ◽  
Meldawati Artayani
Keyword(s):  
Reinforced Concrete ◽  
Glass Fiber ◽  
Fiber Reinforced Concrete ◽  
Fiber Reinforced ◽  
Glass Fiber Reinforced

Kota Makassar sebagai,pintu gerbang perdagangan di Indonesia Timur dan juga merupakan salah satu kota besar di Indonesia, membutuhkan moda transportasi massal yakni kereta api yang telah ditindaklanjuti dengan adanya jaringan jalur kereta api Trans Sulawesi pada tahun 2015 di Kabupaten Barru. Sejauh ini perencanaan kereta api hanya sebatas rencana jaringan jalur kereta tanpa adanya rencana rancangan stasiun. Oleh karena itu dibutuhkan sebuah desain Stasiun Kereta Api di Kota Makassar sebagai induk dari stasiun-stasiun penghubung antarkota lainnya. Penggunaan metode pendekatan utopia menekankan bentuk fasade yang geometris dan dinamis yang ditransformasikan dari bentuk lumba-lumba untuk menghadirkan kesan futuristik pada bangunan yang berlokasi pada Kecamatan Tallo tersebut. Dengan luas lahan terbangun 2,7 Ha dan lahan terbuka 1,8 Ha, Stasiun didesain tiga lantai dengan sistem struktur rangka ruang dipadukan GFRC (Glass Fiber Reinforced Concrete). Pada tapak terdapat pembagian jalur enterance antara penumpang, pengelola dan barang atau kargo. Fasilitas yang disediakan pada tapak adalah halte angkutan umum yakni BRT dan pete-pete guna memperlancar perpindahan moda transportasi penumpang. Stasiun Kereta Api dengan konsep utopia ini penulis sajikan agar dapat menjadi ikon Kota Makassar, sesuai dengan program kerja pemerintah yakni menjadikan Kota Makassar sebagai kota dunia. Selain itu juga dapat memperpanjang masa pakai bangunan dari segi arsitektural sehingga bangunan tidak perlu direnovasi dalam kurun waktu yang singkat.

Experiment Investigation on Mechanical Property of Glass Fiber Reinforced Concrete

2014 ◽  
Vol 915-916 ◽  
pp. 784-787
Author(s):  
Yan Lv
Keyword(s):  
Tensile Strength ◽  
Reinforced Concrete ◽  
Flexural Strength ◽  
Glass Fiber ◽  
Volume Fraction ◽  
Plain Concrete ◽  
Fiber Reinforced Concrete ◽  
Fiber Reinforced ◽  
Fiber Volume ◽  
Glass Fiber Reinforced

Based on the mechanical properties experiment of the glass fiber reinforced concrete with 0%0.6%0.8% and 1% glass fiber volume fraction, the mechanics property such as tensile strength, compressive strength, flexural strength and flexural elasticity modulus are analyzed and compared with the plain concrete when the kinds of fiber content changes. The research results show that the effect of tensile strength and flexural strength can be improved to some extent, which also can serve as a reference or basis for further improvement and development the theory and application of the glass fiber reinforced concrete.

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