International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 04 Issue: 07 | July -2017
p-ISSN: 2395-0072
www.irjet.net
EXPERIMENTAL TEST CONDUCTED ON CONCRETE BY REPLACING SAND WITH GBFS AND ADDING COCONUT FIBRES Chaitra.D1, Sowmya.S.M2 1PG
Student Department of Civil Engineering SDIT Kenjar, Mangaluru, India. Professor Department of Civil Engineering SDIT Kenjar, Mangaluru, India. ---------------------------------------------------------------------***-------------------------------------------------------------------- To find out the properties of fresh concrete. Abstract - Sand is an essential material utilized for preparation of mortar and concrete, it additionally plays a To concentrate the conceivable outcomes to noteworthy part in mix design. These days, there is a utilize the coconut fibre notwithstanding shortage of river sand because of disintegration of stream alternate constituents of cement and to bed. GBFS is one of the promising feasible answer for concentrate the quality properties. substitution of sand as they are the waste acquired from To examine the compressive quality, flexural steel industry. We realize that concrete is week in strain to quality, split elasticity, and furthermore to defeat this reaction of concrete, natural fibre can be utilized direct non-ruinous test like Rebound mallet in concrete. This review is directed by supplanting sand with test and Ultra sonic Pulse speed test. GBFS and utilizing coconut fibre in cement. 2Assistant
1.2 Scope of experiment
Keywords: Granulated Blast Furnace Slag, Coconut fibre.
1.INTRODUCTION
Concrete is a mixture of cement, aggregates, water alongside some admixtures. In future it is critical to take care of the worldwide demand of cement, along these lines it is essential to locate a creative and appropriate methods for development technique and in addition development materials. Innovative construction should mainly aim to reduce the harmful environmental impacts which is readily to be produced from construction industry. As there is growth in construction field taking place there is a scarcity of raw materials which is necessary for construction process. There is lot of scarcity for fine aggregate in present days, therefore it is important to find alternative raw material for fine aggregate. Granulated Blast Furnace Slag is the raw material which has similar properties to that of river sand and it is the waste material obtained from steel industry. GBFS is one of the promising material that can be used as fine aggregate.
GBFS is the waste obtained from steel industry, disposing this into environment is very dangerous therefore using GBFS in concrete will reduce the bad effect of disposal. Coconut coir which is easily available and is going waste it can be used effectively for reinforcing in concrete. Using coir and replacing fine aggregate with GBFS is economical as they are waste products and are easily available.
2. MATERIALS AND METHODOLOGY 2.1 Cement In this study ordinary Portland Ramco cement of grade conforming to IS Requirement as per IS: 269- 2015 was used. Table -1: Physical properties of cement
We all know that concrete is weak in tension and is good in compression. In order to make concrete good in tension reinforcing of concrete is done. In this project natural fibre is used in concrete for reinforcement, i.e., coconut fibre. Coconut fibre is one of the natural fibre which is easily available, cheap and environmental friendly material.. Addition of coconut fibre to the concrete will reduce the cracks in concrete by arresting it.
Test
1.1 Objectives of the experiment
Soundness
Result obtained
Consistency Initial setting time
2.97 140 minutes
Final setting time
220 minutes
Requirement as per IS : 2692015 Clause 7 for OPC 53 2.9 - 3.10 Not less than 30 minutes Max. 600 minutes
0.50 mm
Max. 10mm
To find the strength of concrete when sand is replaced by GBFS.
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