A STUDY ON REPLACEMENT OF CEMENT WITH RICE HUSK ASH

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  • http://www.iaeme.com/IJCIET/index.

    International Journal of Civil Engineering and Technology (IJCIET)Volume 8, Issue 1, January 2017, pp.

    Available online at http://www.iaeme.com/IJCIET/issues.asp?JType=IJCIET&VType=8&IType=1

    ISSN Print: 0976-6308 and ISSN Online: 0976

    IAEME Publication Scopus

    A STUDY ON REPLACEME

    PG Student, Civil Engineering

    Assistant Professor, Civil Engineering Department,

    ABSTRACT

    Background/Objectives: Water utilisation is the major technological trend in todays era.

    India is one of the leading producers of rice and one of its by product rice husk that is obtained

    during its processing is used mostly as fuel in boilers. With

    concept of new development and thinking, the present paper is done by replacement of cement

    with rise husk ash (RHA) partially which is an environmental threat is being introduced to

    concrete mix to reduce the land damage. Addition of RHA may influe

    Findings: Concrete mix with different percentages of RHA (i.e., 0%, 5%, 10%, 15%,

    20%&25%) the grade used is M25and strength of 7days and 28days are determined by the

    codal provision. Applications/Improvements:

    main concept of using RHA is economical.

    in near future has a wide range of importance will exist.

    Key words: Rice husk ash, OPC, Mechanical properties.

    Cite this Article: Ch. Eka Sai

    Rice Husk Ash. International Journal of Civil Engineering and Technology

    723727.

    http://www.iaeme.com/IJCIET/issues.asp?JType=IJCIET&VType=8&IType=1

    1. INTRODUCTION

    Cement is one of the main ingredient of Concrete. Cement is responsible for 5% of global warming.

    During manufacturing of cement, one of the green house gases CO

    minimized by using pozzolonas as replacement of cement. Some of the research

    use industrial wastes such as fly ash, ggbs etc and agro waste like rice husk ash, sugar cane bagasse

    ash, ground nut shell ash etc were replaced in cement partially. Various researchers had proved rice

    husk having good pozzolonic properties. India is the second largest country producing rice. Rice husk

    is the by product obtained in rice mills. Nearly 20

    grains. Around 20 million tonnes of Rice husk ash is obtained per annum. Its dispo

    IJCIET/index.asp 723

    International Journal of Civil Engineering and Technology (IJCIET) Volume 8, Issue 1, January 2017, pp. 723727 Article ID: IJCIET_08_01_085

    http://www.iaeme.com/IJCIET/issues.asp?JType=IJCIET&VType=8&IType=1

    6308 and ISSN Online: 0976-6316

    Scopus Indexed

    A STUDY ON REPLACEMENT OF CEMENT WITH

    RICE HUSK ASH

    Ch. Eka Sai Kumar

    PG Student, Civil Engineering Department,

    K L University, A. P, India

    V. Raju

    Assistant Professor, Civil Engineering Department,

    K L University, A. P, India

    Water utilisation is the major technological trend in todays era.

    India is one of the leading producers of rice and one of its by product rice husk that is obtained

    during its processing is used mostly as fuel in boilers. With Methods/ Statistical analysi

    concept of new development and thinking, the present paper is done by replacement of cement

    with rise husk ash (RHA) partially which is an environmental threat is being introduced to

    concrete mix to reduce the land damage. Addition of RHA may influe

    Concrete mix with different percentages of RHA (i.e., 0%, 5%, 10%, 15%,

    20%&25%) the grade used is M25and strength of 7days and 28days are determined by the

    Applications/Improvements: The strength properties ar

    main concept of using RHA is economical. In present scenario it may be a unique concept but

    in near future has a wide range of importance will exist.

    : Rice husk ash, OPC, Mechanical properties.

    Ch. Eka Sai Kumar and V. Raju, A Study on Replacement of Cement with

    International Journal of Civil Engineering and Technology

    http://www.iaeme.com/IJCIET/issues.asp?JType=IJCIET&VType=8&IType=1

    the main ingredient of Concrete. Cement is responsible for 5% of global warming.

    During manufacturing of cement, one of the green house gases CO2 is emitted. This problem can be

    minimized by using pozzolonas as replacement of cement. Some of the research

    use industrial wastes such as fly ash, ggbs etc and agro waste like rice husk ash, sugar cane bagasse

    ash, ground nut shell ash etc were replaced in cement partially. Various researchers had proved rice

    perties. India is the second largest country producing rice. Rice husk

    is the by product obtained in rice mills. Nearly 20-30% of Rice husk is obtained for one tonne of rice

    grains. Around 20 million tonnes of Rice husk ash is obtained per annum. Its dispo

    editor@iaeme.com

    http://www.iaeme.com/IJCIET/issues.asp?JType=IJCIET&VType=8&IType=1

    NT OF CEMENT WITH

    Water utilisation is the major technological trend in todays era.

    India is one of the leading producers of rice and one of its by product rice husk that is obtained

    Statistical analysis: The

    concept of new development and thinking, the present paper is done by replacement of cement

    with rise husk ash (RHA) partially which is an environmental threat is being introduced to

    concrete mix to reduce the land damage. Addition of RHA may influence it properties.

    Concrete mix with different percentages of RHA (i.e., 0%, 5%, 10%, 15%,

    20%&25%) the grade used is M25and strength of 7days and 28days are determined by the

    The strength properties are calculated. The

    In present scenario it may be a unique concept but

    A Study on Replacement of Cement with

    International Journal of Civil Engineering and Technology, 8(1), 2017, pp.

    http://www.iaeme.com/IJCIET/issues.asp?JType=IJCIET&VType=8&IType=1

    the main ingredient of Concrete. Cement is responsible for 5% of global warming.

    is emitted. This problem can be

    minimized by using pozzolonas as replacement of cement. Some of the research works are on going to

    use industrial wastes such as fly ash, ggbs etc and agro waste like rice husk ash, sugar cane bagasse

    ash, ground nut shell ash etc were replaced in cement partially. Various researchers had proved rice

    perties. India is the second largest country producing rice. Rice husk

    30% of Rice husk is obtained for one tonne of rice

    grains. Around 20 million tonnes of Rice husk ash is obtained per annum. Its disposal is creating lot of

  • Ch. Eka Sai Kumar and V. Raju

    http://www.iaeme.com/IJCIET/index.asp 724 editor@iaeme.com

    problems. When it is burned, the obtained material is known as RHA. RHA contains SiO2of nearly 80-

    90% responsible for having pozzolonic properties.

    In this experimental work rice husk ash replaces cement partially at different proportions such as

    0%, 5%, 10%, 15%, 20% and 25%. Tests are conducted on hardened concrete.

    2. OBJECTIVES

    The primary objectives of the study are

    the practicability of utilizing the Rice Husk Ash in concrete production as partial replacement of cement

    to determine the amount of RHA that can be partially replaced with cement.

    3. METHODOLOGY

    3.1. MATERIALS

    Cement: Ordinary Portland cement of grade 53 confirmed to requirements of IS: 1229-1987 with specific gravity of 3.15.

    Fine aggregate: Locally available river sand satisfying requirement of IS: 383-1980. Specific gravity is 2.58

    Coarse aggregate: Crushed angular aggregate of nominal size 20mm.specific gravity is 2.80

    Water: Water confirming to IS 456-2009

    Rice husk ash: Collected from Guntur rice mill. It is burned under controlled temperature and sieved by 150 micron sieve. Specific gravity is 2.05.

    3.2 Mix design

    Mix design is done as per IS:10262. The mix proportion taken is 1:1:2 with water cement ratio of 0.42

    3.3 Casting

    A total of 108 specimens are casted where 36 specimens are cubes, 36 specimens are beams and 36

    specimens are cylinders and left for 24 hours respectively.

    3.4 Curing

    After 24 hours of casting concrete mix samples are removed from moulds and cured for 7and 28 days.

    3.5 Testing

    The strength tests i.e., compression test, split tensile test, flexural test conducted for 7days and 28 days

    as per Indian Standards.

    4. RESULTS AND DISCUSSIONS

    As per IS standards tests are conducted such as compression test, split tensile test and flexural test.

    After conducting tests the average of three samples are noted in tables and plotted in graphs for

    percentages of 0%, 5%, 10%, 15%, 20% and 25% which are as shown in graphs (figure1, 2, 3) below

    for 7 days and 28 days

  • A Study on Replacement of Cement with Rice Husk Ash

    http://www.iaeme.com/IJCIET/index.asp 725 editor@iaeme.com

    Table 1 Chemical composition of RHA

    Component % of composition

    SiO2 86.91

    Al2O3 0.5

    Fe2O3 0.87

    CaO 1.04

    MgO 0.85

    Na2O 0.69

    K2O 3.16

    Table 2 Compressive strength in N/mm2

    0% 5%, 10% 15%, 20% 25%,

    7 days 19.78 21.97 24.89 17.82 15.75 8.26

    28 days 31.75 35.78 32.78 24.48 22.15 14.46

    Table 3 Split tensile strength in N/mm2

    0% 5%, 10% 15%, 20% 25%,

    7 days 1.40 1.97 2.39 1.03 0.7 0.36

    28 days 2.34 2.96 3.38 1.59 1.26 0.81

    Table 4 Flexural strength in N/mm2

    0% 5%, 10% 15%, 20% 25%,

    7 days 2.3 2.95 2.45 2.07 1.15 1.04

    28 days 3 4.25 3.75 3.37 2.25 2.05

  • Ch. Eka Sai Kumar and V. Raju

    http://www.iaeme.com/IJCIET/index.asp 726 editor@iaeme.com

    Figure 1 Compressive strength for 7 and 28 days

    Figure 2 Split tensile strength for 7 and 28 days

    Figure 3 Flexural strength for 7 and 28 days

    0

    0.5

    1

    1.5

    2

    2.5

    3

    3.5

    4

    4.5

    0% 5% 10% 15% 20% 25%Fle

    xu

    ral

    stre

    ng

    th i

    n N

    /mm

    2

    % of cement replaced with RHA

    7 days

    28 days

    0

    5

    10

    15

    20

    25

    30

    35

    40

    0% 5% 10% 15% 20% 25%

    com

    pre

    siv

    e s

    tre

    ng

    th(N

    /mm

    2)

    % of cement repaced with RHA

    7 days

    28 days

    0

    0.5

    1

    1.5

    2

    2.5

    3

    3.5

    4

    0% 5% 10% 15% 20% 25%

    spli

    t te

    nsi

    le t

    en

    sile

    str

    en

    gth

    (N/m

    m2)

    % of cement replaced with RHA

    7 days

    28 days

  • A Study on Replacement of Cement with Rice Husk Ash

    http://www.iaeme.com/IJCIET/index.asp 727 editor@iaeme.com

    5. CONCLUSIONS

    Following are the outcomes drawn from the above study:

    Cement can be replaced with RHA up to range of 0-15%.

    It is clearly shown that RHA has the prospective to be used as partial replacement material for cement as it has pozzolanic properties

    The problem of disposal of RHA is reduced.

    The greenhouse gas emissions can be reduced up to a major extent by replacing OPC with RHA in concrete

    REFERENCES

    [1] Basha, Emhammed A., and Agus S. Muntohar. Effect of the cement-rice husk ash on the plasticity and compaction of soil, Electronic Journal of Geotechnical engineering 8(2003).

    [2] Bakar, B.H.A., Putrajaya, R.C. and Abdulaziz H. (2010). Malaysian Saw dust ash Improving the Durability and Corrosion resistance of concrete: Pre-review. Concrete Research Letters, 1(1): 6-13,

    March 2010.

    [3] Bui, D.D.; Hu, J. and Stroeven, P. (2005). Particle Size Effect on the Strength of Rice Husk Ash Blended Gap-Graded Portland Cement Concrete, Cement and Concrete Composites, Vol. 27, pp

    357-366.

    [4] De Sensale, G.R. (2006). Strength development of concrete with rice-ash. Cement & Concrete Composites, 28; 158-160.

    [5] Ganeshan, K., Rasagopal, K., Thangavel, K., Sarawathi. V. And Selvaraj, R. Rice Husk Ash, Journal, Indian Cement Review, May-04

    [6] Gemma Rodriguez de Sensale, Strength development of concrete with rice-husk ash, Cement & Concrete Composite, Vol. 28, 2006,158-160

    [7] Habeeb, G.A. and Fayyadh, M.M. (2009). Saw dust ash Concrete: The Effect of SDA Average Particle Size Mechanical Properties and Drying Shrinkage. Australian Journal of Basic and Applied

    Sciences, 3(3):1616-1622.

    [8] Kartini, K. (2011). Rice Husk Ash- Pozzolanic Material for Sustainability. International Journal of Applied Science and Technology. Vol. 1, No 6.

    [9] Lee,S.T., Moon,H.Y. and Swamy,R.N.(2005), Sulphate Attack and Role of Silica Fume in Resisting Strength Loss;Cementan Concrete Composites,Vol 27;pp:65-76.

    [10] Malhotra, V.M. and Mehta, P.K. (2004). Pozzolanic and Cementitious Materials. London: Taylor & Francis

    [11] Michael, R. (2009). Discovery new rice concrete cement - greenhouse emissions.

    [12] Shafiq, N., Austriaco, L.R. and Nimityongskul, P. (1988). Durability of natural fibers in RHA mortar. Journal of Ferrocement, Volume 18, No. 3, Asian Institute of Technology, Thailand. 249-

    262.

    [13] Abdullah Anwar, Sabih Ahmad, Yusuf Jamal and M.Z. Khan, Assessment of Liquefaction Potential of Soil Using Multi-Linear Regression Modeling, International Journal of Civil Engineering and

    Technology, 7(1), 2016, pp. 373-415.

    [14] Akpila, S. B. and Omunguye, I. W. Derivative of Stress Strain, Deviatoric Stress and Undrained Cohesion Models Based on Soil Modulus of Cohesive Soils. International Journal of Civil

    Engineering and Technology, 6(7), 2015, pp 34-43.

    [15] John Paul V. and Antony Rachel Sneha M., Effect of Random Inclusion of Bamboo Fibers on Strength Behaviour of Flyash Treated Black Cotton Soil. International Journal of Civil Engineering

    and Technology, 7(5), 2016, pp.153160.

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