In-Place Stabilization of Pond Ash Deposits by Hydrated Lime Columns

2007 ◽  
Vol 133 (12) ◽  
pp. 1609-1616 ◽  
Author(s):  
Sudeep Kumar Chand ◽  
Chillara Subbarao
Keyword(s):  
Hydrated Lime ◽  
Pond Ash

Effect of Plasters/Coatings on the Thermo-Physical Behavior of Light Weight Pond Ash Blocks Based on Non Autoclaving Technique

2016 ◽  
Vol 678 ◽  
pp. 78-87 ◽  
Author(s):  
Vivek Sood ◽  
B.M. Suman ◽  
Ashok Kumar
Keyword(s):  
Thermal Conductivity ◽  
Compressive Strength ◽  
Thermal Resistance ◽  
Hydrated Lime ◽  
Cow Dung ◽  
Light Weight ◽  
Pond Ash ◽  
Physical Behavior ◽  
Thermal Transmittance ◽  
Thermo Physical Properties

In the present study effect of different plasters like cement plaster, mud, cow dung and coatings like paint, hydrated lime, charcoal on the thermo – physical properties such as thermal conductivity, overall thermal transmittance, resistance of Light Weight Blocks (LWB) using pond ash has been evaluated. Result of the study state that, cow dung is the best amongst all other plasters used. Cow dung increases thermal resistance of Light Weight Block (LWB) from 0.391 to 0.505 m2K/W. Thermal resistance increased by using other plasters lies between 0.391 to 0.505 m2K/W. The study of curing of LWB from 56 days to 90 days has been made and it is found that thermal conductivity is reduced by 5% and thermal resistance is increased by 3% comparing the duration of curing from 56 to 90 days. Further, effect of activator on the compressive strength & demolding time has also been studied. When activator is used, there is an increase in compressive strength at 56 & 90 days at all levels of replacement when compared to without activator. Reduction in demolding time from 48 hrs. varies between 6 – 12 hrs.

Compressive Strength Improvement of Stabilized Peat Soil by Pond Ash - Hydrated Lime Admixture

2015 ◽  
Vol 747 ◽  
pp. 242-245 ◽  
Author(s):  
Zeety Md Yusof ◽  
Siti Nabillah Mohd Harris ◽  
Kamaruzzaman Mohamed
Keyword(s):  
Compressive Strength ◽  
Rapid Development ◽  
Peat Soil ◽  
Hydrated Lime ◽  
Constant Composition ◽  
Compressive Test ◽  
Pond Ash ◽  
Sustainable Environment ◽  
Strength And Stiffness ◽  
Strength Improvement

Rapid development in Malaysia has led to urban development encroaching into the peat land area. Nevertheless, the physical properties of peat which is regarded as a problematic ground has prompted many studies on various methods of stabilization. The used of byproduct material then become a need for a sustainable environment. This paper presents the results of the unconfined compressive test of stabilized peat by admixture method. A constant composition of pond ash as byproduct material (10%) and three different contents of hydrated lime (2%, 4% and 8%) were mixed together with peat respectively. The samples were prepared in the mould and allowed for curing under 0, 14 and 28 days before the test. The experimental results demonstrated that the compressive strength and stiffness of the stabilized peat increases with the hydrated lime content and also with curing time. It indicates that the mixed of pond ash and hydrated lime can promote a better compressive strength of peat, hence become a potential admixture for stabilizing the peat.

A Review on Utilization of Fly- Ash and Pond-Ash as a Partial Replacement of Cement in Concrete Mix Design

2018 ◽  
pp. 413-418
Author(s):  
Harshkumar Patel ◽  
Yogesh Patel
Keyword(s):  
Fly Ash ◽  
Electricity Generation ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Thermal Power ◽  
Strength Test ◽  
Partial Replacement ◽  
Pond Ash ◽  
Research Activities ◽  
Ash Disposal

Now-a-days energy planners are aiming to increase the use of renewable energy sources and nuclear to meet the electricity generation. But till now coal-based power plants are the major source of electricity generation. Disadvantages of coal-based thermal power plants is disposal problem of fly ash and pond ash. It was earlier considered as a total waste and environmental hazard thus its use was limited, but now its useful properties have been known as raw material for various application in construction field. Fly ash from the thermal plants is available in large quantities in fine and coarse form. Fine fly ash is used in construction industry in some amount and coarse fly ash is subsequently disposed over land in slurry forms. In India around 180 MT fly is produced and only around 45% of that is being utilized in different sectors. Balance fly ash is being disposed over land. It needs one acre of land for ash disposal to produce 1MW electricity from coal. Fly ash and pond ash utilization helps to reduce the consumption of natural resources. The fly ash became available in coal based thermal power station in the year 1930 in USA. For its gainful utilization, scientist started research activities and in the year 1937, R.E. Davis and his associates at university of California published research details on use of fly ash in cement concrete. This research had laid foundation for its specification, testing & usages. This study reports the potential use of pond-ash and fly-ash as cement in concrete mixes. In this present study of concrete produced using fly ash, pond ash and OPC 53 grade will be carried. An attempt will be made to investigate characteristics of OPC concrete with combined fly ash and pond ash mixed concrete for Compressive Strength test, Split Tensile Strength test, Flexural Strength test and Durability tests. This paper deals with the review of literature for fly-ash and pond-ash as partial replacement of cement in concrete.

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