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1、 The Open Civil Engineering Journal, 2010, 4, 65-71 65 1874-1495/10 2010 Bentham Open Open Access The Use of Sheet Glass Powder as Fine Aggregate Replacement in Concrete M. Mageswari1,* and Dr. B.Vidivelli2 1Researc

2、h Scholar, Structural Engineering, Annamalai University, Annamalai nagar, 600 002, Tamilnadu, India 2Professor of Structural Engineering, Annamalai University, Annamalai nagar, 600 002, Tamilnadu, India Abstract: Sheet g

3、lass powder (SGP) used in concrete making leads to greener environment. In shops, near by Chidamba- ram many sheet glass cuttings go to waste, which are not recycled at present and usually delivered to landfills for disp

4、osal. Using SGP in concrete is an interesting possibility for economy on waste disposal sites and conservation of natural re- sources. This paper examines the possibility of using SGP as a replacement in fine aggregate

5、for a new concrete. Natural sand was partially replaced (10%, 20%, 30%, 40% and 50%) with SGP. Compressive strength, Tensile strength (cubes and cylinders) and Flexural strength up to 180 days of age were compared with

6、 those of concrete made with natural fine aggregates. Fineness modulus, specific gravity, moisture content, water absorption, bulk density, %voids, % porosity (loose and compact) state for sand (S) and SDA were also st

7、udied. The test results indicate that it is possible to manufac- ture concrete containing Sheet glass powder (SGP) with characteristics similar to those of natural sand aggregate concrete provided that the percentage of

8、 SGP as fine aggregate is limited to 10-20%, respectively. Key Words: Sheet glass powder, Mechanical properties, Fineness Modulus, Bulk density, Moisture content. INTRODUCTION During the last decades it has been recogni

9、zed that Sheet Glass waste is of large volume and is increasing year by year in the Shops, construction areas and factories. Using waste glass in the concrete construction sector is advantageous, as the production co

10、st of concrete will go down [1]. Waste glasses are used as aggregates for concrete [2-4]. In Chennai there is a place called Chidambaram where most of the col- ored sheet glasses from windows are packed as a waste and

11、 sent to landfill. The plain sheet glasses can be recycled, but it is costly to remove the color of colored glasses and recycle again. Estimated cost for housing is more and some construction materials like natural s

12、and are also becoming rare [5]. Attempts have been made for a long time to use waste glasses as an aggregate in concrete, but it seems that the concrete with waste glasses always cracks [2, 6]. Very limited work has

13、 been conducted for the use of ground glass as a concrete replacement [7]. These waste storage disposals are becoming a serious environmental problem especially for Chidambaram where place disposal sites are lacking

14、. Hence there is a need for recycling more and more waste materials. The most widely used fine aggregate for the making of concrete is the natural sand mined from the riverbeds. How- ever, the availability of river san

15、d for the preparation of con- crete is becoming scarce due to the excessive nonscientific methods of mining from the riverbeds, lowering of water table, sinking of the bridge piers, etc. are becoming common *Address c

16、orrespondence to this author at the Research Scholar, Structural Engineering, Annamalai University, Annamalai nagar, 600 002, Tamilnadu, India; Tel: 9942365816; E-mail: mag_rajabishek@rediff.com treats [5]. The present

17、 scenario demands identification of substitute materials for the river sand for making concrete. Recently, some attempts have been made to use ground glass as a replacement in concrete [8-10]. The objective of this p

18、aper is to present the results of experimental investigations on Physical and Mechanical properties of concrete made with Sheet Glass powder concrete. Natural fine aggregate is substituted by weight by Sheet Glass Pow

19、der at rates varying from 10, 20, 30, 40 and 50 percentages. Compressive, Ten- sion, and flexural strength are evaluated and compared up to 180 days of ages. Specific Properties of concrete materials and Sheet Glass P

20、owder are also studied. MATERIALS AND METHODS The raw materials, used for this study are natural coarse aggregate, fine aggregate, Sheet glass Powder (SGP) aggre- gate and 53 grades Portland cement. The Sheet glass use

21、d for this study was collected from the points in Chidambaram taluk at Cuddalore District. Sheet Glass is converted into fine aggregate as shown in flowchart Fig. (1) and the procedure for making Sheet Glasscrete is

22、shown in flowchart Fig. (2). Sheet Glass collected from shops is shown in Fig. (3), Sheet Glass crushed is shown in Fig. (4) and Sheet glass powder is shown in Fig. (5). Sheet glass Powder using sieve size from 4.75m

23、m onwards is shown in Fig. (6). Table 1 shows the Fineness Modulus results of S, SGP, (S + 10%SGP), (S + 20%SGP), (S + 30%SGP), (S + 40%SGP) and (S + 50%SGP). Fig. (3) shows the Fine aggregate material of grading curv

24、e and also SGP, (S+10%SGP), (S+20%SGP), (S+30%SGP), (S+40%SGP) (S+50%SGP) and 100%SGP. The sand used for the study was locally available river sand conforming to grading zone III of IS:383-1970. The coarse aggregate

25、was a The Use of Sheet Glass Powder as Fine Aggregate Replacement The Open Civil Engineering Journal, 2010, Volume 4 67 Fig. (3). sheet glass Fig. (4). Crushed sheet glass Fig. (5). sheet glass powder Fig. (6). Siev

26、e Analysis of the Materials. Table 1. Fineness Modulus Parameter Sand Coarse SGP (90%S+ 10%SGP) (80%S+ 20%SGP) (70%S+ 30%SGP) (60%S+ 40%SGP) (50%S+ 50%SGP) Specific gravity 2.65 2.7 3.01 3.27 3.27 3.22 3.1

27、5 3.14 Water absorption % 8.3 0.45 1.5 6.9 5.8 5.0 4.5 4.2 Moisture content % 3.70 0 0.5 2.57 2.4 2.2 2.0 2.0 Bulk density ( dry loose state)(kg/m3) 1468 1450 1310 1510 1530 1540 1540 1520 % Void

28、s 40.8 39 57 53 54 52 51 52 % Porosity 28.9 27 36 34 35 34 33 34 Bulk density(dry compact state) (kg/m3) 1512 1640 1530 1620 1650 1700 1700 1690 % Voids 35.39 34 50 49 49 47 46 46 % Porosi

29、ty 25.9 25 33 32 32 31 31 31 Flakiness Index - 10 - - - - Elongation Index - 9.61 - - - - Table 2. Physical Properties of Materials Oxide SiO2 A2O3 Fe2O3 CaO MgO SO3 LOI Na2O+K2O Percentage b

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