scholarly journals Effect on addition of Polypropylene fibers in wood ash-fly ash based geopolymer concrete

2020 ◽  
Vol 872 ◽  
pp. 012162 ◽  
Author(s):  
K Arunkumar ◽  
M Muthukannan ◽  
A Dinesh Babu ◽  
A L Hariharan ◽  
T Muthuramalingam
Keyword(s):  
Fly Ash ◽  
Wood Ash ◽  
Polypropylene Fibers ◽  
Geopolymer Concrete

Cleaner Environment Approach by the Utilization of Low Calcium Wood Ash in Geopolymer Concrete

2021 ◽  
Author(s):  
Kadarkarai Arunkumar ◽  
Muthiah Muthukannan ◽  
Arunachalam Suresh Kumar ◽  
Arunasankar Chithambar Ganesh ◽  
Rangaswamy Kanniga Devi
Keyword(s):  
Fly Ash ◽  
Microstructural Characterization ◽  
Wood Ash ◽  
Geopolymer Concrete ◽  
X Ray Diffraction ◽  
High Potassium ◽  
Waste Wood ◽  
Research Findings ◽  
Research Gap ◽  
The Impact

The waste disposal issues were the most severe problems that could cause global warming, which depletes the environment. The research hypothesis was to find the suitability and sustainability of utilizing the waste by-products in the invention of green geopolymer concrete to eliminate the tremendous effects caused by the wastes. Due to the increased demand for fly ash in recent years, the requirement of high alkaline activators, and elevated temperature for curing, there was a research gap to find an alternative binder. The novelty of this research was to utilize the waste wood ash, which is available plenty in nearby hotels and has an inbuilt composition of high potassium that can act as a self alkaline activator. Waste wood ash procured from the local hotels was replaced with fly ash by 0 to 100% at 10% intervals. The setting and mechanical characteristics were found on the prolonged ages to understand the influence of waste wood ash. Microstructural characterization was found using Scanning Electron Microscope and X-Ray Diffraction Analysis to define the impact of waste wood ash in the microstructure. The research findings showed that replacing 30% waste wood ash with fly ash attained better performance in setting properties and all mechanical parameters. The obtained optimum mix could provide the best alternative for fly ash in geopolymer to eliminate the economic thrust by the requirement of alkaline activators and deploy the environmental impact caused by the waste wood ash.

Structural Behaviour of Green Geopolymer Concrete Beams and Columns Made with Waste Wood Ash a Partial Substitution Binder

2022 ◽  
Vol 1048 ◽  
pp. 333-344
Author(s):  
K. Kumar Arun ◽  
M. Muthukannan ◽  
R. Raja Abinaya ◽  
A. Kumar Suresh
Keyword(s):  
Fly Ash ◽  
Concrete Beams ◽  
Wood Ash ◽  
Partial Substitution ◽  
Polymer Concrete ◽  
Geopolymer Concrete ◽  
Structural Behaviour ◽  
Waste Wood ◽  
Toughness Index ◽  
Load Carrying

On the demand of reducing the global warming due to cement production which is used as main constituent in the production of concrete and minimizing the environmental impact caused by the waste and its disposal methods, this study was aimed. This study looked in to detail insight view on effective utilization of waste wood ash in the production of geopolymer concrete beams and columns to alternate the conventional reinforced concrete elements in construction industry. Waste wood ash is a waste by product produced in the nearby hotel and factories by burning the waste wood collected from timber industries and the ash are thrown in to land which creates a major environmental pollution. Geopolymer is a novel inorganic eco-friendly binding agent derived from alkaline solution that stimulates aluminosilicate source material (such as metakaolin, fly ash and GGBS). In this research, behaviour of beams in deflection, ductility factor, flexural strength and toughness index and columns in load carrying ability, stress strain behaviour and load-deflection behaviours were examined for three types of concretes (30% WWA – 70% Fly ash Geo-polymer concrete, Fly ash Geo-polymer concrete and Reinforced Cement Concrete). The results showed that inclusion of waste wood ash in geopolymer concrete helped in enhancing the load carrying capacity of beam and column by 42% and 28%. Further, the behaviour of structural elements in stiffness, ductility and toughness were also improved with the replacement of waste wood ash.

scholarly journals Use of waste paper ash or wood ash as substitution to fly ash in production of geopolymer concrete

2021 ◽  
Vol 30 (3) ◽  
pp. 464-476
Author(s):  
Haider Owaid ◽  
Haider Al-Baghdadi ◽  
Muna Al-Rubaye
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Compressive Strength ◽  
Fly Ash ◽  
Flexural Strength ◽  
Sodium Hydroxide ◽  
Wood Ash ◽  
Splitting Tensile Strength ◽  
Waste Paper ◽  
Geopolymer Concrete

Large quantities of paper and wood waste are generated every day, the disposal of these waste products is a problem because it requires huge space for their disposal. The possibility of using these wastes can mitigate the environmental problems related to them. This study presents an investigation on the feasibility of inclusion of waste paper ash (WPA) or wood ash (WA) as replacement materials for fly ash (FA) class F in preparation geopolymer concrete (GC). The developed geopolymer concretes for this study were prepared at replacement ratios of FA by WPA or WA of 25, 50, 75 and 100% in addition to a control mix containing 100% of FA. Sodium hydroxide (NaOH) solutions and sodium silicate (Na2SiO3) are used as alkaline activators with 1M and 10M of sodium hydroxide solution.The geopolymer concretes have been evaluated with respect to the workability, the compressive strength, splitting tensile strength and flexural strength. The results indicated that there were no significant differences in the workability of the control GC mix and the developed GC mixes incorporating WPA or WA. Also, the results showed that, by incorporating of 25–50% PWA or 25% WA, the mechanical properties (compressive strength, splitting tensile strength and flexural strength) of GC mixes slightly decreased. While replacement with 75–100% WPA or with 50–100% WA has reduced these mechanical properties of GC mixes. As a result, there is a feasibility of partial replacement of FA by up to 50% WPA or 25% WA in preparation of the geopolymer concrete.

scholarly journals Compressive Strength of Fly Ash Based Geopolymer Concrete Addition with Fibers

2020 ◽  
pp. 57-61
Author(s):  
B Anitha Rani V Bhargavi,
Keyword(s):  
Compressive Strength ◽  
Fly Ash ◽  
Construction Material ◽  
Polypropylene Fibers ◽  
Geopolymer Concrete ◽  
Inorganic Polymers ◽  
Cement Production ◽  
Compressive Strength Test ◽  
New Generation ◽  
Day By Day

Concrete is the most widely used construction material all over the world. The quantity of the water plays an important role in the preparation of concrete. And the demand of concrete is increasing day by day and cement is used for satisfying the need of development of infrastructure facilities, 1 tonne cement production generates 1 tonne CO2, which adversely affect the environment. In order to reduce the use of OPC and CO2 generation, the new generation concrete has been developed such as Geopolymer concrete (GPC). Geopolymers are inorganic polymers and their chemical composition is similar to natural materials. Geopolymer binders are the alternatives in the development of acid resistant concrete i.e. durability of concrete. Geopolymer concrete is produced using Fly ash at 100% replacement to cement and binders like NaOH, Na2SiO3 to ignite the geopolymerisation. Many studies were carried out on properties of geopolymer concrete. This study focuses on enhancing the strength of geopolymer concrete by using fibers. 60% polyester and 40% polypropylene fibers are added to geopolymer concrete addition with Fly ash content. The trail mixes were casted with addition of fibers at different percentages like (0.20, 0.25, 0.30, 0.35, 0.40, 0.45 and 0.50 %). Then samples were air-cured for 28 days at ambient temperature. Compressive strength test is conducted on the samples after 3, 7 and 28 days. The optimum value is obtained at 0.40% addition of fibers when compared to nominal mix(GPC).

Invention of sustainable geopolymer concrete made with low calcium waste wood ash

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
K. Arunkumar ◽  
Muthukannan Muthiah ◽  
Suresh Kumar A. ◽  
Chithambar Ganesh A. ◽  
Kanniga Devi R.
Keyword(s):  
Fly Ash ◽  
Environmental Impacts ◽  
Wood Ash ◽  
Wood Waste ◽  
Geopolymer Concrete ◽  
X Ray Diffraction ◽  
Waste Wood ◽  
Cement Production ◽  
Content Type ◽  
Effective Product

Purpose Inefficient waste disposal technique and cement production methodology caused significant environmental impacts, leading to global warming. The purpose of the research was to invent an effective, sustainable technology to use the wastes and alternate for cement in concrete. Geopolymer technology could be the most desirable solution to use the wastes into an effective product. Design/methodology/approach The wood waste ash derived from nearby tea shops was used as an alternate binder for fly ash. The replacement of WWA with FA was varied from 0 to 100% at 10% intervals. In this research, setting and mechanical features of Geopolymer Concrete (GPC) along with Waste wood ash (WWA) was carried out. The influence of wood waste ash in the microstructure of the GPC was also assessed using scanning electron microscope and X-ray diffraction analysis. Findings The findings revealed that 30% replacement of wood waste ash was performed higher in all measured features. Besides, the formation of different phases was also observed with the inclusion of wood waste ash. Research limitations/implications The demand for fly ash was increased in recent years, and the fly-based GPC has required more alkaline solution and temperature curing. Hence, there was a research gap on finding an alternative binder for fly ash. Originality/value The research novelty was to use the wood waste ash, which has inbuilt alkaline compounds on the production of sustainable geopolymer. The finding showed that the wood waste ash could be alternate fly ash that eliminates the environmental impacts and economic thrust.

THE EFFECT OF FLY ASH IN GEOPOLYMER CONCRETE POLES – A THRIVING SOLID WASTE DISPOSAL MEASURE FOR ECO-FRIENDLY ENVIRONMENT

2018 ◽  
Vol 8 (2) ◽  
pp. 7
Author(s):  
R. THENMOZHI ◽  
VADIVEL T.SENTHIL ◽  
S. MUTHURAMALINGAM ◽  
V. PADMAPRIYA ◽  
◽  
...  
Keyword(s):  
Fly Ash ◽  
Solid Waste ◽  
Waste Disposal ◽  
Geopolymer Concrete ◽  
Solid Waste Disposal

scholarly journals Practical Prediction Models of Tensile Strength and Reinforcement-Concrete Bond Strength of Low-Calcium Fly Ash Geopolymer Concrete

Polymers ◽  
2021 ◽  
Vol 13 (6) ◽  
pp. 875
Author(s):  
Chenchen Luan ◽  
Qingyuan Wang ◽  
Fuhua Yang ◽  
Kuanyu Zhang ◽  
Nodir Utashev ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Fly Ash ◽  
Bond Strength ◽  
Prediction Models ◽  
Splitting Tensile Strength ◽  
Geopolymer Concrete ◽  
Structural Factors ◽  
Test Results ◽  
Portland Cement Concrete ◽  
Low Calcium

There have been a few attempts to develop prediction models of splitting tensile strength and reinforcement-concrete bond strength of FAGC (low-calcium fly ash geopolymer concrete), however, no model can be used as a design equation. Therefore, this paper aimed to provide practical prediction models. Using 115 test results for splitting tensile strength and 147 test results for bond strength from experiments and previous literature, considering the effect of size and shape on strength and structural factors on bond strength, this paper developed and verified updated prediction models and the 90% prediction intervals by regression analysis. The models can be used as design equations and applied for estimating the cracking behaviors and calculating the design anchorage length of reinforced FAGC beams. The strength models of PCC (Portland cement concrete) overestimate the splitting tensile strength and reinforcement-concrete bond strength of FAGC, so PCC’s models are not recommended as the design equations.

scholarly journals Sustainable use of polypropylene fibers and palm oil fuel ash in the production of geopolymer concrete

2021 ◽  
Vol 1136 (1) ◽  
pp. 012046
Author(s):  
Bala Gopal Adapala ◽  
Durga Chaitanya Kumar Jagarapu ◽  
Syed Hamim Jeelani ◽  
B. Sarath Chandra Kumar ◽  
Arunakanthi Eluru
Keyword(s):  
Palm Oil ◽  
Sustainable Use ◽  
Polypropylene Fibers ◽  
Geopolymer Concrete ◽  
Palm Oil Fuel Ash ◽  
Fuel Ash ◽  
Oil Fuel
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