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Thesis Title Defense Presentation - BSCE 3

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Richmond Olaya

on 15 March 2014

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Transcript of Thesis Title Defense Presentation - BSCE 3

STEP
EXPERIMENTAL ANALYSIS AND EVALUATION OF FLY ASH BASED SELF-CONSOLIDATING GEOPOLYMER CONCRETE
Chapter I
THE PROBLEM AND ITS BACKGROUND
BY:
ANTIPINO, AILEEN MARIE R.
BORAC, EDMAR A.
GERUNDIO, JANNI MEY T.
HUMIRANG, RONNIE M.
OLAYA, RICHMOND T.
ROJAS, ROMELL C.

ADVISER:
EDGAR GAY-YA, Ph. D

Chapter II
FRAMEWORK OF THE STUDY
Chapter III
RESEARCH METHODOLOGY
Introduction
Background of the Study
Objectives of the Research
Significance of the Study
Scope and Delimitation
Concrete

Environmental Concern
Carbon Dioxide emission from CEMENT production
FLY-ASH as a waste from coal thermal plant

The Greenpeace office in the Philippines documents the massive sludge ponds being made at a thermal coal power plant in Calaca, Batangas.

Calaca coal-fired power plant in Calaca, Batangas

Despite of the good mix design of concrete, deficient compaction might lead to lower performance of concrete in terms of strength and durability.

Placement of fresh concrete in formworks requires skilled labor or operator to establish suitable compaction or vibration to obtain the full strength and durability of hardened concrete.

Develop a Fly Ash based Self-Consolidating Geopolymer Concrete (SCGC) by utilizing locally available materials in the Philippines.

Obtain characteristics of Raw Materials

Develop proportioned mixtures to be able to produce a Fly ash based SCGC using alkali-activated fly ash as binding material

Analyze and Evaluate Properties of FRESH and HARDENED Fly-ash based Self-Consolidating Geopolymer Concrete and traditional SCC.

To make a cost comparison between the traditional self-consolidating concrete and fly-ash based self-consolidating geopolymer concrete.
Environmental and Waste Management
Academe
Construction Industry
Selection of Materials
Proportioned Mixtures

Selected tests for fresh and hardened concrete
Cement

Self-Consolidating Concrete


Self-Consolidating Geopolymer Concrete
Geopolymer
Review of Related Literature
Foreign
China: First in Cement

By
Peter Edwards
Specifying Fly ash for Use in Concrete

By
Karthik H. Obla, Ph.D., P.E.
TechBrief: Geopolymer Concrete

By
Thomas J. Van Dam, Ph.D., P.E.
Self Compacting Concrete

By
Hajime Okamura and Masahiro Ouchi
Local
Blended Cement: Concrete Solutions for a Better World

By
WWF-Lafarge Conservation Partnership
Review of Related Studies
Foreign
Alkaline Activation of Fly ash. Manufacture of Concrete Not Containing Portland Cement

By
A.Fernández-Jiménez and A. Palomo

Development and Properties of Low-Calcium Fly ash-Based Geopolymer Concrete

By
D. Hardjito and B. V. Rangan

Low-Calcium Flyash-Based Geopolymer Concrete: Long-Term Properties

By
S. E.Wallah and B. V. Rangan
Local
Compressive Strength and Workability Characteristics of Low-Calcium Fly ash-based Self-Compacting Geopolymer Concrete

By
M. Fareed Ahmed, M. Fadhil Nuruddin and Nasir Shafiq
Effect of Superplasticizer and NaOH Molarity on Workability, Compressive Strength and Microstructure Properties of Self-Compacting Geopolymer Concrete

By
M. Fadhil Nuruddin, Samuel Demie, M. Fareed Ahmed, and Nasir Shafiq

Influence of Curing Types on Strength of Geopolymer Concrete

By
K. Vijai, R. Kumutha, and B.G. Vishnuram

Cement from Wastes in the Philippines

By
Bonar Laureto and Deorex David Navaja

Fabrication of Cementless Reinforced Concrete Pipe Using Fly Ash and Alkaline Solution as an Alternative Binding Material

By
S. C. Pardines, J. R. Gementiza, M. C. Buenafe and S. R. Bacsid


Bentonite as Partial Replacement for Cement in the Production of 14,000 psi High Strength Self-Consolidating Concrete (HSSCC)

By
J.A. Amata, A.M. Andrade, F.J.A. Jorge, R.D. Ramos, L.A. Sagayap and J.D.T. Tallod


Conceptual Framework
Definition of Terms
Acid Resistance
Blended Cement
Compressive Strength Test
Fly Ash Based Self-Consolidating Geopolymer Concrete
Geopolymer
Geopolymerization
Geopolymer Binder
Geopolymer Cement

Geopolymer Concrete
Oven Heat Curing
Pull-out Test
Saturated Surface Dry
Self-Consolidating Concrete
Self-Consolidating Geopolymer Concrete
Slump Flow Test
Workability

Project Planning And Development
Problem Identification
Desired Compressive Strength of 5000psi at 28days
Data Gathering
Important Considerations:

Properties of raw materials
Concentration and Ratio of activator solutions
Curing condition
Dosage of superplasticizer
Percentage of added water
Activator solution to fly ash ratio
Sourcing of Raw Materials

Washed sand
G-3/8"
Fly ash
Alkaline Solution
Type G Admixture (Superplasticizer)
Evaluation and Selection of Materials
Coarse and fine aggregates
Fly ash
Alkaline solutions
Superplasticizer
Formulation of Trial Mix Design
Fixed parameters:
Percentage replacement of cement by Fly-ash: 100%
Amount of Fly-Ash in kg/cu.m : 400
Sodium silicate – to – sodium hydroxide ratio by mass: 2.5
Percentage of sodium silicate in alkaline solution: 71.5%
Percentage of sodium hydroxide in alkaline solution: 28.5%
Concentration of sodium hydroxide solution: 12M
Dosage of superplasticizer: 7%
Percentage of Added water: 12%
Condition of Aggregates: Saturated Surface Dry (SSD)
Type of Curing: Oven Heat Curing
Temperature: 70 deg C
Duration of Curing: 24 hours

Variable parameters:
Alkaline – to – Fly ash ratio 0.4, 0.5, 0,6

Trial Mix and Curing of Samples
Preparation of Aggregates
Preparation of Activator Solution
Mixing
Dry mixing
Wet Mixing
Casting
Curing

Testing and Evaluation
Fresh
Temperature
Slump Flow
Unit Weight

Hardened
Compressive Strength Test
Acid Resistance Test
Pull-out Test
Fine Aggregates
Coarse Aggregates
Fly Ash
Alkaline Solution
Superplasticizer
Fresh concrete:

Mechanical property
1. Flowability

Physical property
1. Unit weight
2. Temperature
Hardened concrete:
1. Compressive Strength
2. Acid Resistance
3. Pull-out test
Time Frame
Design and produce mix proportions for SCGC and traditional SCC.
Physical and Mechanical Properties
Compressive Strength
Acid Resistance
Bond Strength
Full transcript