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note strength study on fly ashbased geopolymer mortar

note strength study on fly ashbased geopolymer mortar

NOTE Strength Study on Fly Ash-Based Geopolymer Mortar

materials and coined the term geopolymer for it. Geopolymer NOTE Strength Study on Fly Ash-Based Geopolymer Mortar V. SREEVIDYA*, R. ANURADHA and R. VENKATASUBRAMANI Civil Engineering Department, VLB Janakiammal College of Engineering and Technology Kovaipudur, Coimbatore-641 042, India *Corresponding author: E-mail: [email protected]

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(PDF) Strength study on fly ash-based geopolymer mortar

Geopolymer is a novel binding material produced from the reaction of fly ash with an alkaline solution. In geopolymer mortar, portland cement is not utilized at all. In this research, the ...

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Microstructure and strength development of fly ash-based ...

Nov 30, 2018  The present study elucidates the fluctuations in compressive strength of fly ash based geopolymer mortar using 14 M molar concentrations of alkali activator solution along with different replacement levels of nano-metakaolin (0%, 2%, 4%, 6%, 8% and 10% of fly ash).

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STRENGTH OF ALKALI ACTIVATED SLAG AND FLY ASH-BASED ...

STRENGTH OF ALKALI ACTIVATED SLAG AND FLY ASH-BASED GEOPOLYMER MORTAR Arie Wardhono, David W. Law and Tom C.K. Molyneaux School of Civil, Environmental and Chemical Engineering, RMIT University ...

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Mechanical Properties and Microstructure of Class C Fly ...

Apr 09, 2013  In previous studies, compressive strength and Young’s modulus of fly ash-based geopolymer did not change significantly between paste and mortar [5,16]. However, in mortar, compressive strength depends on the strength of the geopolymeric gel, the interfacial bonding between the geopolymeric gel and aggregate and the aggregate itself .

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Strength and Setting Times of Low Calcium Fly Ash-based ...

literature. This paper presents the results of a study on the strength and setting times of fly ash-based geopolymer mortar. 2. Past Research on Geopolymer Material Geopolymer concrete is also known as Alkali-activated concrete or Inorganic polymer concrete. Many researches have been carried out to study the mechanical properties of Geopolymer.

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(PDF) Study on Strength of Fly Ash Based Geopolymer ...

IJSRD - International Journal for Scientific Research Development Vol. 2, Issue 07, 2014 ISSN (online): 2321-0613 Study on Strength of Fly Ash Based GeoPolymer Concrete under Heat Curing Bagwan Mustafa1 Shaik Abdulla2 1 P.G. Student 2Lecturer 1,2 Department of Civil Engineering 1,2 Khaja Bandanawaz College of engineering, Gulbarga, Karnataka.

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STRENGTH OF ALKALI ACTIVATED SLAG AND FLY ASH

STRENGTH OF ALKALI ACTIVATED SLAG AND FLY ASH-BASED GEOPOLYMER MORTAR Arie Wardhono, David W. Law and Tom C.K. Molyneaux School of Civil, Environmental and Chemical Engineering, RMIT University ...

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Strength Development of Fly ash and GGBS Based ...

2. Compressive strength increases around 40% to 50% from 7 days to 28 days. 3. temperature curing. Cement and Concrete ResearchHigher concentration (in terms of molarity) of sodium hydroxide solution results in higher compressive strength of fly ash-based geopolymer mortar. 4. Workability of geopolymer mortar decreases with the

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Performance deterioration of fly ash/slag-based geopolymer ...

1 天前  Similarly, Mehta and Siddique (2017) reported that the mass loss of fly ash-based GP concrete increased with the increasing OPC substitute for fly ash when exposed to a 2% sulfuric acid solution for one year. After exposure to a 5% sulfuric acid solution, the GP mortars had a lower strength loss than OPC mortar, as reported by Aiken et al. (2018).

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(PDF) Studies on fly ash-based geopolymer concrete ...

On the influence of curing time, fly ash-based geopolymer concrete cured for longer periods of time, shows an increase in its compressive strength, at least up to 48 hours (Figure 6). Figure 2: Effect of molar NaO 2-to-SiO2 ratio on compressive strength Another important characteristic of fresh concrete state is the setting time.

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Study on Compressive Strength of Geopolymer Mortar ...

This paper studies the strength development in geopolymer mortar using industrial by-products. Geopolymer is the term used to represent the binders produced by polymeric reaction of alkaline liquid with silicon and aluminium as source materials. The by-product materials considered in this study are combination of GGBFS and Fly ash.

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Study of mechanical properties of fly ash-based geopolymer ...

The new development in building construction showed that fly ash based Geopolymer concrete can be as structure materials to reduce or even eliminate ordinary Portland cement concrete. This paper presented the research results of fly ash based geopolymer concrete mechanical properties, like the compressive strength, flexural strength, and ...

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(PDF) Studies of fly ash-based geopolymer concrete

fly ash-based geopolymer paste binds the loose coarse a ggregates, fine aggregates. and other un-reacted materials together to form the geopolymer concrete, with or. without the pr esence of admix ...

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Effect of Curing Conditions on Strength of Fly ash-based ...

Authors: Fareed Ahmed Memon, Muhd Fadhil Nuruddin, Samuel Demie, Nasir Shafiq Abstract: This paper reports the results of an experimental work conducted to investigate the effect of curing conditions on the compressive strength of self-compacting geopolymer concrete prepared by using fly ash as base material and combination of sodium hydroxide and sodium silicate as alkaline activator.

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Effect of Various Additives on the Properties of Fly Ash ...

Dec 31, 2018  In the present study, setting time and variation in strength of fly ash based geopolymer mortar prepared from natural sand as fine aggregates. Blast furnace slag (GGBS), micro silica and lime dust used as additives to fly ash based geopolymer mortar at 5, 10 and 15% of weight of fly ash.

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Materials Free Full-Text Fly Ash-Based Geopolymer ...

This study reports on formulations and conditions for producing fly ash-based geopolymers with a view to showing that the compressive strength required for construction applications can be obtained without the addition of aggregates, sand, and/or cement. It was shown in a series of experiments constituting at least 73% fly ash that a compressive strength of up to 90 MPa can be obtained ...

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(PDF) IRJET- Effect of loading rate and pre-loading on ...

Kukai and Lenkei (2002) For pre-loading tests, one mix of fly ash-based geopolymer investigated the effect of compressive pre-loading on the concrete (GPC) was prepared, two mixes of fly-ash based strength of concrete by applying pre-loading to the geopolymer mortar (GPM) and one mix of ordinary Portland specimens about 60% of the final value ...

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Sulfate resistance of fly ash-based geopolymer mortar: AIP ...

Sep 26, 2017  This paper presents sulfuric acid attack of fly ash-based geopolymer mortar. Precursor used in this study was fly ash, and activator used was NaOH and Na 2 SiO 3.The ratio of activator/precursor, ratio of Na 2 SiO 3 /NaOH, and ratio of fine aggregate/precursor is 0.42, 2.00, and 2.00, respectively. The molar concentration of NaOH which was used were 8, 10, 12, 14, and 16 M.

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Resistance of Soda Residue-Fly Ash Based Geopolymer Mortar ...

The early mechanical performances of low-calcium fly ash (FFA)-based geopolymer (FFA-GEO) mortar can be enhanced by soda residue (SR). However, the resistance of SR-FFA-GEO mortar to acid or sulfate environments is unclear, owing to the various inorganic calcium salts in SR. The aim of this study

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Study on Metakaolin and Fly Ash Based Geopolymer Concrete

The experimental investigation is to case study the properties of metakaolin and fly ash in increase in compressive strength of concrete by replacing cement. Strength characteristics of concrete with partial replacement of fly ash by metakaolin at 0%, 10%, 20%, 30%, 40% and 50% for M40 grade.

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STUDY ON STRENGTH AND DURABILITY OF FLY ASH AND

geopolymer concrete with fly ash and GGBFS, cured at room temperature and comparison has been made for strength and durability characteristics with M 30 grade OPC. 2. EXPERIMENTAL PROGRAM 2.1. Materials 43 grade OPC cement having specific gravity of 3.15 was used for cement concrete. For geopolymer concrete

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Performance deterioration of fly ash/slag-based geopolymer ...

1 天前  Similarly, Mehta and Siddique (2017) reported that the mass loss of fly ash-based GP concrete increased with the increasing OPC substitute for fly ash when exposed to a 2% sulfuric acid solution for one year. After exposure to a 5% sulfuric acid solution, the GP mortars had a lower strength loss than OPC mortar, as reported by Aiken et al. (2018).

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Early-Age Strength of Alkali-Activated Municipal Slag–Fly ...

Aug 19, 2016  This study evaluates the effects of various quantities of activator on the workability and early-age strength of alkali-activated municipal slag–fly ash–based geopolymer mortar. Early-age compressive strength is measured under different curing conditions: steam curing, water curing, and

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Studies on Fly Ash-Based Geopolymer Concrete

useful to improve the workability of fresh fly ash-based geopolymer concrete, as well as the addition of extra water. The main parameters affecting the compressive strength of hardened fly ash-based geopolymer concrete are the curing temperature and curing time, the

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Study of mechanical properties of fly ash-based geopolymer ...

The new development in building construction showed that fly ash based Geopolymer concrete can be as structure materials to reduce or even eliminate ordinary Portland cement concrete. This paper presented the research results of fly ash based geopolymer concrete mechanical properties, like the compressive strength, flexural strength, and ...

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The Effect of Dosage and Modulus of Activator on the ...

In this study, the effect of dosage and modulus of activator on the strength of alkali activated slag and fly ash based geopolymer mortar is studied. Fly ash from Tingyi is used. Blast furnace slag from No (1) Iron and Steel Industry, Pyin Oo Lwin is used. NaOH and Na2SiO3 are used as alkaline activator.

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Evaluation of the Role of Cetyltrimethylammoniumbromide ...

without affecting the strength. Studies on evaluation of PC based SP on fly ash Geopolymer showed appreciable reduction in the strength around 20 to 35% with reference to original concrete. Similar such conditions are existing for geopolymer from slag and fly ash base combination. Reports on the addition of fly ash with slag improving ...

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Mineralogical, Microstructural and Compressive Strength ...

Abstract: This study was designed to examine the mineral, microstructural, and mechanical strength properties of fly ash and its feasibility as a raw material for geopolymer cement. The study used an experimental method by examining the characteristics of fly ash by X-ray Fluorescence Spectrometer (XRF), Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), hydrometer method ...

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Fly ash-based Geopolymer Concrete

The Report presents a comprehensive summary of the extensive studies conducted on fly ash-based geopolymer concrete. Test data are used to identify the effects of salient factors that influence the properties of the geopolymer concrete in the fresh and hardened states. These results are utilized to

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Sulfate resistance of fly ash-based geopolymer mortar: AIP ...

Sep 26, 2017  This paper presents sulfuric acid attack of fly ash-based geopolymer mortar. Precursor used in this study was fly ash, and activator used was NaOH and Na 2 SiO 3.The ratio of activator/precursor, ratio of Na 2 SiO 3 /NaOH, and ratio of fine aggregate/precursor is 0.42, 2.00, and 2.00, respectively. The molar concentration of NaOH which was used were 8, 10, 12, 14, and 16 M.

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Replacement of Natural Sand with Expanded Vermiculite in ...

Replacement of Natural Sand with Expanded Vermiculite in Fly Ash-Based Geopolymer Mortars Osman Gencel 1,*, Aliakbar Gholampour 2, ... this study was to produce geopolymer mortar with lower thermal conductivity than conventional ... the compressive strength of cement mortar containing expanded vermiculite as a fine ag-

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A feasibility study of strain hardening fiber reinforced ...

Geopolymer Fly ash Strain hardening Fiber reinforced composite Digital Image Correlation abstract Fly ash-based geopolymer has been intensively studied as a promising alternative to ordinary cement materials. While geopolymer concrete has good strength and excellent material greenness, applications have been limited to niche or small scale ...

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