Basic Civil Engineering notes on Transportation Engineering & Modes of Transport
phase 1 project presentation on geopolymers concrete ppt.pptx
1. DAYANANDA SAGAR ACADEMY OF TECHNOLOGY AND
MANAGEMENT
(Opp. art of living, kanakapura main road Bangalore-560082)
Affiliated to VTU Belagavi, approved by AICTE new Delhi
(accredited by NBA & NAAC A+ grade)
DEPARTMENT OF CIVIL ENGINEERING
BATCH: 01
PROJECT PHASE-I
STUDY OF MECHANICAL PROPERTIES OF GEOPOLYMERS SELF
COMPACTING CONCRETE
Students: Guide:
Gagan M S (1DT21CV400) Prof. P Girish
Mahesh M (1DT21CV403) Assistant Professor
Preethi M (1DT21CV409)
K M Prathyusha (1DT20CV404)
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3. ABSTRACT
There is a need to find environmentally acceptable alternatives to Ordinary
Portland Cement Concrete (OPCC) due to its high energy demand and carbon
emissions during production. One viable substitute that makes use of waste
materials is geopolymers. Waste products from industry, including GGBS,
RHA, FA, and so forth. In this study we aim to replace OPC with GGBS,
FA,RHA with use of Alkaline activator, to understand the self flowing
characteristics of the self compacting concrete. The study consider the impact
on sustainability,durability and cost-effectiveness, contributing valuable
insights to the field of innovative construction materials.
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4. INTRODUCTION
GEOPOLYMER CONCRETE:
Geopolymer concrete is a type of concrete that is made by reacting aluminate and silicate materials
with a caustic activator, such as fly ash or slag from iron and metal production. It may work well in place regular
ordinary Portland cement (OPC).
What are the geopolymers:
1. Ground granulated blast furnace slag (GGBS)
2. Rice husk ash (RHA)
3. Fly ash (FA)
4. Silica fume (SF)
5. Basalt fiber & etc.
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5. LITERATURE REVIEW
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SL
NO
TITLE JOURNAL INFERENCE
1. Potential application of
geopolymer concrete
Case studies in
construction materials 15
(2021) e00733
The use of geopolymer concrete as an alternative to the
OPC concrete would result in about an 80% reduction in
carbon dioxide emission.
GGBS & SF based geopolymer concrete strength improved
in continuance reaction with sodium silicate.
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2. Self compacting
geopolymer concrete
Materials today : proceedings
59 (2022) 1683-1693
The mechanical strength of concrete increased by 25% @
12M concentration of NaOH whereas workability was
found to be comparable.
Inclusion of steel fibers, degrades the fresh properties and
increases the mechanical strength of SCGC.
The strength of SCGC increases with the rise in curing
temperature till 60⁰c – 70⁰c and reduces when the curing
temperature increased beyond 70⁰c.
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3. Development of self
compacting
geopolymer concrete
as a sustainable
construction material
Sustainable environment
research 28 (2018) 412-421
Mix with 100% FA showed good behaviour at temperature
curing but failed to attain required strength at ambient
temperature curing.
The high early age compressive strength is achieved for mix
with 100% GGBFS due to the reaction of Cao with water
which generates the heat and eventually accelerates the
geopolymerization.
The mechanical properties of GGBFS based SCGC improved
with the inclusion of RHA up to 5% RHA replacement at
ambient curing and 15% RHA replacement at temperature
curing.
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4. Study on workability
and hardened properties
of self compacted
Geopolymers concrete
cured at Ambient
temperature.
Indian journal of science and
technology, vol 11(1), DOI:
10.17485/ijst/2018/v11i1/117
698, january 2018
As the Sodium Hydroxide molarity increases from 8M to
12M, it was observed decrease in fluidity and flowability of
SCGC mixes, though all mixes meet the requirements of
SCGC as per the EFNARC guidelines.
The mix with 100% FA failed to achieve the early strength
at ambient temperature.
At ambient temperature, mix MG3 with 100% GGBFS
developed 41.35 MPa, 2.9MPa, 3.11MPa compressive
strength, split tensile strength and flexural strength
respectively after 28 days of curing.
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5. Performance of self
Compacting
geopolymer concrete
containing different
mineral admixture
Performance of self
Compacting geopolymer
concrete containing different
mineral admixture
The result of the mechanical properties ( compressive, split,
and flexure) had shown significant performance differences
and the higher compressive strength has been obtained for
slag series . So 30% replacement of slag levels could be of
optimum consideration for both flowability as well mechanical
properties
In this case of fly ash and blast furnance slag filling of the
voids between the large layer particles and increasing
production of secondary hydrates by pozzolonic reaction with
the time resulting from the primary hydration enhances
compressive strength
10. GAP IDENTIFICATION
Provision For 100% Replacement Of GGBS.
Provision For Replacement Of GGBS, Rice Husk Ash And Fly Ash.
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11. OBJECTIVES
The primary objective is to study the strength and durability of geopolymer
concrete.
To determine the workability and flowability of SCC using geopolymer
materials in identified ratios.
To study the mechanical properties of geopolymer concrete using GGBS,FA
and RHA.
Study and optimise the mix design using selected geopolymer materials.
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12. METHODOLOGY
MATERIALS REPLACEMENT RATIO :
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MATERIALS % RATIO 1 % RATIO 2 % RATIO 3 % RATIO 4
GGBS 70% 80% 90% 100%
FA 20% 10% 0% 0%
RHA 10% 10% 10% 0%
COLLECTION
OF MATERIALS
BASIC TEST
ANALYSIS
PREPARATION
FOR MIX
DESIGN
CASTING AND
CURING OF
SPECIMEN
TESTING AND
RESULT
ANALYSIS
CONCLUSION
AND STUDY
OF REPORT
13. METHODS OF TESTING ON GSCC
1. DETERMINATION OF MECHANICAL PROPERTIES :
A. CONCRETE COMPRESSIVE TEST : B. TENSILE CHARACTERISTICS :
2. DETERMINATION OF FLOWABILITY OR WORKABILITY :
A. SLUMP FLOW TEST : B. V FUNNEL TEST : C. L BOX TEST : D. J RING TEST :
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14. EXPECTED OUTCOMES
Achieve desirable strength characteristics.
Provide eco-friendly geopolymer concrete.
To improve the strength of geopolymer SCC by use of mineral
admixtures.
Geopolymer also shows the ideal mechanical properties of concrete
can be obtained such as high compressive strength ,good acid
resistance, low creep and low shrinkage.
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15. REFERENCE
1. Balamurali kanagaraj, N Anand. " Behavioural studies on binary blended high strength self compacting concrete ". ELSEVIER
2090-4479 (2023): 1-17.
2. Mansi thakur, shailja bawa. "self compacting geopolymer concrete." ELSEVIER, (2022): 1683-1693.
3. Balamurali kanagaraj, N Anand . "Physical characteristics and mechanical properties of a sustainable lightweight Geopolymer
based SCC with expanded clay aggregates Formwork pressure prediction in cast-in-place self-compaction using deep learning."
ELSEVIER 2666-1659(2022):1-19.
4. Yamini J patel, Niraj shah." Development of SCC as a sustainable construction material. " ELSEVIER 2468-2039(2018):412-421.
5. Yaser Gamil, Jonny Nilimaa, Taufik Najeh, Andrzej Cwirzen. " Formwork pressure prediction in cast-in-place self-compacting
using deep learning." ELSEVIER 0926-5805 (2023):1-14.
6. Ahmad L Almutairi, Bassam A. Tayeh. . " Potential application geopolymer concreter in construction . " ELSEVIER 2214-
5095(2021):1-19.
7. Yamini J patel, Niraj shah. " Study on workability and hardened properties SCGC cured at ambient temperature. " INDIAN
JOURNALS OF SCIENCE AND TECHNOLOGY. 0974-6846(2018):1-12.
8. T G Ushaa, R Anuradha. " Perfomance of SCGC containing different mineral admixtures. " INDIAN JOURNALS OF SCIENCE
AND TECHNOLOGY. 22(2015): 473-481.
9. Dr G Velraj kumar, A Mohan. " Perfomance of GGBS and SF on SCGC using partial replacement R-sand. " ELSEVIER 2214-
7853(2022):1-9.
10. Subhankar Choudhury, Subhashree Mohapatra " Study of various properties of geopolymer concrete. " ELSEVIER 46(2021):5687-
5695.
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