GUIDED BY, Ms. V.ANANTHI.M.E ASSISTANT PROFFESSOR PHASE - II 03.06.2014 EXPERIMENTAL STUDY ON FIBRE REINFORCED CONCRETE USING QUARRY DUST AND GLASS FIBRES PREPARED BY, G.KANDASAMY GUIDED BY, Ms. V.ANANTHI.M.E ASSISTANT PROFFESSOR

SCOPE OF THE INVESTIGATION The scope of this investigation is to study the structural performance of concrete using different proportions of Quarry dust in glass fiber reinforced concrete. This could make it possible to achieve economically increased strength, increased workability and resistance against cracking.

OBJECTIVE To study the strength properties like cube compressive strength, cylinder split tensile strength. To optimize the volume fraction of quarry dust keeping fiber content as constant for getting high performance. To cast RCC structural elements with quarry dust and glass fibers as secondary reinforcement.

INTRODUCTION Concrete is a widely used construction material in growing construction industry. Due to rapid growth in construction activity, the available sources of natural sand are getting exhausted. An acute shortage of river sand has escalated construction costs and it has been affecting the construction sector. Now, research institutions are developing alternatives to the natural resource for use in construction. The cheapest and the easiest way of getting substitute for natural sand is by crushing natural stone to get manufactured sand of desired size and grade which would be free of all impurities.

Glass fiber In the form first used, glass fibers were found to be alkali reactive and products in which they were used deteriorated rapidly. glass containing 16% Zirconium was successfully formulated in the 1960’s and by 1971 was in commercial production in the UK. glass fiber is used in the manufacture of glass-reinforced cement (GRC) products, which have a wide range of applications. Glass fiber is available in continuous or chopped lengths. Fiber lengths of up to 35-mm are used in spray applications and 25-mm lengths are used in premix applications . Glass fiber has high tensile strength (2-4 GPa) and elastic modulus (70-80 GPa)

GLASS FIBRE

PROPERTIES OF GLASS FIBRE Values Type E glass fiber Length 6mm Tensile strength (Gpa) 3.5 Modulus(Gpa) 73.5 Elongation(%) 4.8 Density(kg/m3) 2720

Review of literature MahendraR.Chitlangeand Prakash S. Pajgade (2010) studied the strength appraisal of quarry dust in SFRC. They investigated the steel fibre reinforced concrete with quarry dust as fine aggregate. Three matrices with compressive strength 20,30 and 40 MPa were designed and reinforced with crimpled steel fibres at dosage rate of volume fraction 0, 0.5,1.0,1.5 and 2.0 percent. The specimens were prepared, cured and tested for compressive strength, flexural strength and split tensile strength.  

Priyanka A. Jadhav and Dilip K Priyanka A. Jadhav and Dilip K. Kulkarni (2012) investigated the properties of concrete containing quarry dust. The concrete exhibits excellent strength with 60% replacement of natural sand, so it can be used in concrete as viable alternative to natural sand. They experimented the effect of water cement ratio and percentage replacement of quarry dust by natural sand as 0.4, 0.45, 0.5, 0.55 and 0%, 20%, 40%, 50%, 60%, 80%, and 100% respectively on the strength properties of concrete. The study was carried out on M20 grade concrete with 0.5 water cement ratio Quarry dust can be used as fine aggregate, but it has to satisfy the technical requisites like workability and strength.

QUARRY DUST

Physical properties of quarry rock dust Specific gravity 2.55 Bulk relative density (kg/m3) 1720 Absorption (%) 1.20 Moisture content (%) Nil Fine particles less than 0.075mm (%) 12 Sieve analysis Zone II

Typical chemical composition of quarry rock dust Constituent Quarry rock dust (%) SiO2 62.48 Al2O3 18.72 Fe2O3 06.54 CaO 04.83 MgO 02.56 Na2O Nil K2O 03.18 TiO2 01.21 Loss of ignition 00.48

METHODOLOGY TO BE ADOPTED : Collection of materials Computation of Mix Design. Casting and testing of cube specimens for its compressive strength. Casting and testing of cylinder specimens for its split tensile strength. Casting and testing of prism specimens of its flexural strength. Casting of RC structural elements like beams. Testing of elements for its load-deflection behavior.

MIX PROPORTIONS Mix design for M30 grade of concrete according to IS 10262 : 2009 CEMENT F.A C.A WATER 1 1.7 2.69 0.45

SPECIMEN DETAILS DIMENSION OF CUBE – 150*150*150mm DIMENSION OF CYLINDER – 150*300mm DIMENSION OF BEAM – 1600*150*100mm PROPORTION CUBE CYLINDER BEAM 7days 28days M30 3 1 20%qa 40%qa 60%qa

WORK SO FAR DONE BEAM PROPORTION CUBE CYLINDER 7days 28days M30 3 1 20%qa+1%GF 40%qa+1%GF 60%qa+1%GF

Cube specimen before testing

CUBE COMPRESSION TEST

TEST RESULT AT 7 DAYS S.No 0% 20% 40% 60% 1. 2. 3. 42.67 27 38.22 41.77 2. 30.6 35.55 37.33 3. 30.22 35.11 44

CYLINDER COMPRESSION TEST

Split Tensile Strength of Cylinder 7 days S.NO 0% 20% 40% 60% 1 1.73 1.65 1.69 1.60 2 1.75 1.68 1.71 3 1.78 1.70 1.79

BEAM REINFORCEMENT

BEAM COMPRESSION TEST

LOAD DEFLECTION BEHAVIOUR OF BEAM S.NO LOAD DEFLECTION(mm) 1 2 10 0.15 3 20 0.60 4 30 1.10 5 40 1.65 6 50 2.20 7 60 2.60 8 70 3.40 9 80 3.90 90 5.50

FLEXURAL STRENGTH (N/MM2) 28DAYS Specimen Flexural strength - (N/mm2) 28Days M30 11.03 20%qa+1% GF 12.08 40%qa+1% GF 17.19 60%qa+1% GF 21.77

FLEXURAL STRENGTH (N/MM2) 28DAYS

REFERANCE Arabi Nourredine. (2011) “Influence of curing conditions on durability of alkali-resistant glass fibres in cement matrix”, Indian Academy of Sciences, Bull. Mater. Sci., Vol. 34, No.4, July 2011, pp. 775 – 783. Baaros J. A. O., Figueiras J. A.et al (2012) “Tensile behavior of glass fibre reinforced concrete,” International Journal of Advanced Engineering Technology, Vol. III, Issue April –June, 2012. Bhikshma V., R.Kishore & C.V. Raghu Pathi. (2010). “ Investigations on flexural behavior of high strength quarry dust concrete,” Opportunities and Solutions in Structural Engineering and Construction, March 2010, pp 511-519. Chandramouli K., Srinivasa Rao P.et al (2010) “ Rapid chloride permeability test for durability studies of glass fibre reinforced concrete,’’ ARPN Journal of Engineering and Applied Sciences. Vol. 5, No.3, March 2010, ISSN 1819-6608, pp 67-71. Deshmukh S.H., Bhusari J.P., Zende A.M. (2012) “Effect of glass fibres on ordinary Portland cement concrete,” IOSR Journal of Engineering June. 2012, Vol. 2(6), ISSN: 2250-3021, pp: 1308-1312.

THANK YOU