experimental study on partial replacement of cement with quarry dust
DESCRIPTION
utilization of waste materials in making concrete, helps in understanding of quarry dust utilization in cement partial replacement.TRANSCRIPT
Sairam Kumar et al, International Journal of Advanced Engineering Research and Studies E-ISSN2249–8974
IJAERS/Vol. II/ Issue III/April-June,2013/136-137
Research Paper
EXPERIMENTAL STUDY ON PARTIAL REPLACEMENT OF
CEMENT WITH QUARRY DUST Venkata Sairam Kumar N.
1, Dr. B. Panduranga Rao
2, Krishna Sai M.L.N.
3
Address for Correspondence 1,3
Asst. Professor, Dept of Civil engineering, R.V.R & J.C CE, Andhra Pradesh-522019. 2Head, Dept of Civil Engg. V.R. Siddhartha Engg College. Andhra Pradesh 520007.
ABSTRACT Quarry dust a waste from the stone crushing unit accounts 25% of the final product from stone crushing unit. This quarry
dust which is released directly into environment can cause environmental pollution. To reduce the impact of the quarry dust
on environment and human, this waste can be used to produce new products or can be used as admixture in concrete so that
the natural resources are used efficiently and hence environmental waste can be reduced. Here quarry dust is used for partial
replacement of cement in concrete for studying the strength property of concrete. The aim of the experiment is to find the
maximum content of quarry dust partial replacement of cement in concrete. The percentages of quarry dust partial
replacement of cement in concrete are 0, 10%, 15%, 20%, 25%, 30%, 35%, and 40%. M20, M30, M40 grade concrete cubes
of 150x150x150mm size were cast for conducting compressive strength test. From the experimental studies 25% of partial
replacement of cement with quarry dust improved hardened concrete properties.
KEY WORDS: quarry dust, compressive strength, and partial replacement.
INTRODUCTION:
Advancement in utilization of wastes in concrete as
admixture reduces pollutants in environment and
maximizes usage of natural resources. During the
production of cement Co2 is produced which cause
global warming. By reducing cement consumption
environment can be protected. An attempt was made
to partially replace the cement with waste material
quarry dust with an aim not to loose the strength far
from original concrete mix.
From the observations of test results, cement can be
replaced with 25% of quarry dust in concrete. The
physical and mechanical properties of materials used
in concrete were investigated. For each replacement 6
cubes were cast for measuring 7days and 28days
compressive strength.
MATERIALS:
Quarry dust: quarry dust is collected from local
stone crushing units of chowdavaram village, Guntur,
Andhra Pradesh. It was initially dry in condition
when collected and was sieved by IS: 90 micron
sieve before mixing in concrete. Specific gravity
observed for quarry dust is 2.5.
AGGREGATES:
Fine aggregate: Krishna river sand confirmed to
grading zone-III as per IS: 383-1970, having specific
gravity of 2.61 and fineness modulus of 2.9 has been
used as fine aggregate for this study.
Coarse aggregate: coarse aggregate obtained from
local quarry units has been used for this study.
Maximum size of aggregate used is 20mm with
specific gravity of 2.73.
Cement: Portland pozzolana cement conforming to
IS: 269:1976 and IS: 4031-1967 was used in this
study. The cement is of 53Grade and the tests
conducted on cement are tabulated in Table. No.1. Table No. 1 Properties of cement
Water: Potable tap water available in laboratory was
used for mixing and curing of concrete.
Mix design procedure: In present study M20, M30,
M40 grades concrete were designed as per IS: 10262-
2009. The weight ratios of mix proportions are
tabulated in Table. No. 2 Table. No. 2 Mix proportions
Experimental Test Setup: concrete cubes
confirming to IS: 516:1964 of size 150x150x150mm
were cast. Total 144 cubes were cast for
determination of compressive strength. After 24
hours the moulds were de-moulded and subjected to
water curing. Before testing, the cubes were air dried
for 2 hours. Crushing loads were noted and average
compressive strength of 3 specimens is determined at
7 days and 28 days shown in table 3 and 4
respectively of various mix proportions.
RESULTS: Table No. 3: Test results of 7 days compressive strength,
(N/mm2) of M20, M30, M40 Grades concrete with
partial replacement of cement with quarry dust.
Table No.4: Test results of 28 days compressive strength
(N/mm2) of M20, M30, M40 Grade concrete with partial
replacement of cement with quarry dust.
Sairam Kumar et al, International Journal of Advanced Engineering Research and Studies E-ISSN2249–8974
IJAERS/Vol. II/ Issue III/April-June,2013/136-137
Fig: 1 Shows 7days compressive strength (N/mm2).
Fig: 2 Show 28 days compressive strength(N/mm2).
CONCLUSIONS:
• Cement can be replaced with quarry dust up
to 25% without much loss in compressive
strength.
• Water to powder ratios of 0.5, 0.4, 0.35 for
M20, M30, M40 respectively were
maintained for all the percentage
replacements for workability.
• From the results a marginal decrease in
compressive strength is observed up to 25%
cement replaced with quarry dust.
• Considerable decrease in compressive
strength was observed from 25% cement
replaced with quarry dust.
• From 20% to 25% cement replaced with
quarry dust 7 days compressive strength is
slightly increased.
REFERENCES: 1. IS:383-1970, Specification for coarse and fine
aggregates from natural sources for concrete.
Bureau of Indian Standards, New Delhi.
2. IS:2386-1963 Part I to VII. Indian standard methods for test for aggregate for concrete. Bureau
of Indian standards, New Delhi.
3. IS: 516-1959, Indian Standard methods of test for strength of concrete. Bureau of Indian standards,
New Delhi.
4. IS: 10262-2009 and SP: 23:1982 Recommended Guidelines for concrete mix. Bureau of Indian
standards, New Delhi.
5. Nagaraj T.S. and Zahida Banu 1996. Efficient utilization of rock dust and pebbles as aggregates in
portland cement concrete. The Indian concrete journal. Pp.53-56.
6. IS:8112-1989, Specifications for 43grade ordinary
portland cement, Bureau of Indian standards, New Delhi.
7. M.Sharul Hameed and A.S.S.Sekhar “properties of
green concrete containing quarry rock dust and marble sludge powder as fine aggregate” ARPN
journal of engineering and applied sciences vol.4,
june 2009. 8. Prof. Jayeshkumar Pitroda, Dr.L.B.ZALA,
Dr.F.S.Umriagr (2012), “experimental
investigations on partial replacement of cement
with fly ash in design mix concrete”. International
journal of advanced engineering technology, IJAET/Vol.III/Issue IV/ oct-dec., 2012/126-129.
9. Ilangovan R. and Nagamani K. 2006 Application of
quarry rock dust as fine aggregate in concrete construction. National journal on construction
management, NICMAR. Pune. Dec.pp.5-13.
10. Sahu A.K., Sunil Kumar and Sachan A.K. 2003 Quarry stone waste as fine aggregate for concrete.
The Indian concrete journal. Pp 845-848.
11. Prakash Rao D.S. and Gridhar v. 2004 Investigation on concrete with stone crusher as fine
aggregate. The Indian concrete journal.pp.45-50.
12. IS: 12269-1987 Specification for 53 grade ordinary Portland cement.