Experimental study on strength comparison of the glass fiber reinforced concrete (GFRC) and conventional concrete (M30 grade)

This is a comparatively recent advancement in construction technology. This saves money in the construction process because it is light weight. The use of glass fiber to replace steel in reinforced concrete structures helps reduce corrosion and structural damage. Many alternatives have been investigated to increase concrete’s strength, durability, shrinkage characteristics, and serviceability while considering global environmental factors. As a consequence, glass fiber has been employed as an additive, and trials with various percentages of 1%, 2 %, and 3% cement have been carried out. When considering this material, concepts such as glass fiber, light weight, cost-effective, ecologically friendly, and compressive strength must be considered. GFRC is a cement matrix made up of cement, sand, water and admixtures, and contains short glass fibers. Facade panels, pipes and channels are examples of non-structural elements that have been extensively used. Light weight (which lowers dead load), fire resistance, an attractive appearance, and tensile strength are just a few of the benefits of GFRC. Trial tests for concrete with and without glass fiber are conducted using cubes, beams, and cylinders to measure the differences in compressive strength, flexural strength, and split tensile strength. Because glass fiber may be molded and sculpted in a number of ways, its demand is growing in India due to rising building activity and other causes. Compared to other reinforcing materials, it is a more affordable and cost-effective solution.


Introduction
Glass fibers are round and straight, with diameters ranging from 0.005mm to 0.015mm.Glass fibers are readily available in a wide range of lengths, diameters, and aspect ratios.Alkali-resistant glass fibers were used in all of the investigations in this study.By varying the number of fibers, this study contrasts some of the characteristics of two concrete classes.The goal of this study was to determine whether incorporating glass fiber into concrete enhances its strength.

Objectives of the project
The objectives of the project are as follows:  Cost-effect data analysis  Analysis and design steps of glass-fiber reinforcement  Fully organized strength

Role of fiber-glass reinforcement
The main tensile load-carrying component of GFRC is alkali-resistant glass fibers.The concrete matrix connects the fibers and transfers loads from one fiber to the next by causing shear stress in the matrix.Concrete fiber reinforcement is commonly misunderstood and feared.The CCI has published articles on fiber reinforcement ordinary concrete.The relevance of structural fiber dose and orientation, on the other hand, will be investigated further.
Fiber reinforcement is a typical approach for improving the mechanical characteristics of a material.Many engineers, who are interested in material sciences, have received education on the subject.Fiber glass is the most prevalent and well known type of fiber reinforcement.

SiO2
:50-60 Alkali resistance is conferred by zirconia in the glass.The more zirconia there is, the more alkali-resistant it is.AR glass fibers are also resistant to acids.
Finally, the direction of the fibers was crucial.The randomness of the orientation increases as the number of threads required to bear the load increases.This is because only a small number of randomly oriented fibers are oriented in the correct direction.

Mandatory study
GFRC's strength comes from a high dosage of AR glass fiber.Although GFRC has high compressive strength, it also has extra-ordinarily high flexural and tensile strength, making it a better choice than conventional concrete.Higher fiber doses effectively transmit tensile loads and make the material more flexible while preventing it from breaking.Facades are commonly composed of large light-weight panels manufactured using GFRC.As a result, the overall cost of the materials used gets reduced.We must explore its qualities to make the most of its superior structural features and reduce cost while maintaining its high strength.

Material and methods
Concrete is a freshly mixed material that can be formed into nearly any shape.Concrete, unlike other construction materials, is made on site and, with the exception of cement, can vary widely in quality, features and performance owing to the use of natural ingredients.Material properties are crucial for making concrete workable and long-lasting.
The materials used in the study are as follows: Table 1 List of materials to be used in the study

Fine aggregate Local available sand
Coarse aggregate Aggregates that have passed through a20mm sieve

Glass fiber 5cm of long chopped fibers
Water: Potable water as per IS code 456:2000

Demand of fiber glass
The method may be used to replace asbestos.High quality alkali-resistant glass fibers with a high proportion of zirconia, increases the alkali resistance of cement composites.Strand lengths and sizes are available in a variety of lengths and sizes to fulfill specific applications and processing demands.AR glass fiber is available through a variety of local agencies in Saudi Arabia, France, the United States, Russia, Thailand, Singapore and the United Arab Emirates.

S. no. Age Strength percent
1.

Conclusion
From the results of the experiments, the following conclusions can be drawn:  The highest compressive strength was attained by adding 1.5% of glass fiber by weight, to the entireconcrete mix.Successive additions resulted in a minor divergence from the maximum strength. Adding 1.5% of glass fiber by weight, to the entire concrete mix increased the compressive strength ofconcrete by 26%. When it comes to achieve high strength, glass fiber is a cost-effective and suitable option.Concretepanels are sturdy and can be manufactured with little material. As a result, alkali resistant glass fiber can be used as reinforcement in regular concrete, resulting inighter, smaller and stronger panels.

Figure 1 Figure 2 Figure 3
Figure 1 Conventional cube compressive strength chart

Table 2
Composition of AR glass fiber

Table 3
Compressive strength of concrete at various ages

Table 4
Test results of conventional concrete cube