1. STUDY OF CONCRETE
WITH REPLACEMENT OF
COARSE AGGREGATE BY
USING GRANITE WASTE
Group Member
DeepaK Kumar
Aman Maurya
Aman Soni
Ashwani Pandey
Babulal Kushwaha
Guided By
2. CONTENTS
LITERATURE REVIEW
METHODOLOGY
1. Collection of Raw Materials
2. Testing of Raw Materials
3. Concrete Mix – Design
4. Workability of concrete
5. Casting of Specimens
6. Curing of concrete
GANTT CHART
REFERENCES
3. Introduction
Granite waste is produced from granite industries as a result of production. More
production equals more waste, more waste creates environmental contamination. A high
volume of granite production has generated a considerable amount of waste materials;
almost 70% of the minerals gets wasted in the mining, processing and polishing stages
which have a serious impact on the environment. Also, a large amount of granite is
accumulating in the environment due to demolition of old structures having granite. This
causes environmental pollution. An economically viable solution to this problem should
include utilization of these waste materials for new products especially in construction
applications which in turn minimizes the heavy burden on the nation’s landfills, saves
natural resources, energy and reduces environmental pollution. If the waste product of
one industry is recycled as a substitute for the raw material of another industry, it will
thereby reduce the environmental impact of both.
4. LITERATURE REVIEW
R.Siva kumar( 2016) Granite waste are used as a partial
replacement of natural coarse aggregate. By using granite waste
it increases the strength of the concrete . The granite waste were
crushed and used in the place of 20mm coarse aggregate. The
strength of gradually decreasing at 40% and 50% . Moreover by
using granite waste and its application uses the solid waste
dumping and increases the sustainable development of the
construction industry in the most efficient way and also address
the high value of useage of such waste.
5. Sarath Sunil, Nisha Varghese(2020) The physical properties of marble (specific gravity,
water absorption, etc) satisfies the IS code specifications for coarse aggregates. So, marble
can be used as coarse aggregate in concrete. Hardened properties such as compressive
strength, split tensile strength and flexural strength increases with increase in marble
content upto 50%, and then shows a decreasing trend. The compressive strength of the
concrete mix containing 50% WMCA is greater than that of control mix. Concluding the
observations, the optimum percentage replacement of marble waste as coarse aggregate in
concrete is 50%.
Gencel et al. (2012) ) In his study, used crushed stone as a baseline for comparison of marble
waste as coarse aggregate, where substitution was done in steps of 10% from 0% to 40%. The
results showed that with increase in replacement level of marble waste, the unit weight of
concrete mixes reduced along with compressive strength. At 40% substitution, the
compressive strength was only 78% of the control concrete. There were similar variations in
spilt tensile strength, young’s modulus, UPV and Schmidt hardness values also. Only positive
attribute of marble-based concretes is that they have been reported to have lesser water
absorption capacity, hence their resistance to freeze and thaw was also higher. At the end of
the freezing and thawing testing regime the fall in compressive strength was around 4–7% for
mixes with 40% marble waste, whereas for the control mixes it was around 13–15%.
6. METHODOLOGY
1. Collection of Raw Materials Raw
materials used in this project is
listed below:
(i). Cement
(ii). Coarse Aggregate
(iii). Fine Aggregate
(iv). Granite
(v). Distilled Water
7. Testing of Specimens
COMPRESSIVE STRENGHT TEST
The compressive test is conducted as per IS 516-1959. For 10%, 20% & 30% of Granite and
20%, 30% & 40% of Fly Ash, compressive strength test is conducted at 7,14 & 28 days.
Procedure
a) Specimen cubes (150mm x 150mm x 150mm) are used.
b) Concrete is poured in the moulds and tempered properly so as not to have After 24 hours,
moulds are removed, and test specimens are put in water for curing.
c) The top surface of these specimens should be made even and smooth.
d) These specimens are tested by compression testing machine after 28 days curing. Load
should be applied gradually at the rate of 140 kg/cm² per minute till the specimen fail.
e) The maximum load applied to the specimen was then recorded as ultimate load (P). f)
Compressive strength (fc) is calculated as, Fc=P/A
8. Curing of concrete
Curing plays a vital role in concrete strength development and durability. After
adding water to the concrete mix (Cement, Sand & Aggregate), the exothermic
reaction (hydration) takes place, which helps the concrete to harden. Hardening of
concrete is not instant and continues for a longer period, which requires more
amount of water for processing hydration. So, the concrete kept moist until the
hydration reaction in concrete completes. This process called the curing of concrete.
The specimens are stored in moist air for 24 hours for curing of concrete mix and
after that the specimens are marked and removed from the moulds and then the
specimens are watercured in clean and fresh water until taken out prior to test at 7,
14 & 28 days.
10. Results
The resultsshowed thatthe compressive
strengthof theconcrete decreasedas the
percentage of granitewasteincreased.
However,thedensity andworkability of
theconcretewerenotsignificantly affected.
Overall,theuseof granitewaste as a
replacement for coarse aggregates can
reducetheenvironmentalimpactof concrete
production withoutcompromising
its performance.
11. Theexperimentalstudy showedthattheuseof granite
waste as a replacement forcoarseaggregates in
concretecan reducetheenvironmentalimpactof
concreteproductionwithoutcompromising its
performance.Furtherresearch is needed to optimize
the use of granite waste in concrete and ensure its
long-term durability.
Conclusion
