Effect of Lime Sludge and Fly Ash on Unconfined Compression and Linear Shrinkage Behavior of Kaolinite Clay

Author(s):  
Sandeep G. Burra ◽  
Prabir K. Kolay ◽  
Sanjeev Kumar
2014 ◽  
Vol 6 (3) ◽  
pp. 421-430 ◽  
Author(s):  
M.S. Sultana ◽  
M.I. Hossain ◽  
M.A. Rahman ◽  
M.H. Khan

Effects of rice husk ash and fly ash on properties of red clay collected from Naogaon district of Bangladesh were investigated. Different percentages of rice husk ash (RHA) and fly ash (5%, 10% and 15%) were thoroughly mixed with clay to analyse various physical and chemical properties of clay followed by heat treatment of 8000C to 11000C. The samples were tested for compressive strength, linear shrinkage, water absorption, porosity and bulk density. XRD analysis indicates the clay sample was mainly illite type. Water absorption and porosity increased with increasing percentage of ashes. The percentage of water absorption was within 6 to 10% for different mixture which may be suitable for ceramic and tiles purposes. Both fly ash and RHA of 15% could be used to improve some properties of clay. The optimum firing temperature for all the samples was 10500C. XRD pattern of clay with fly ash and rice husk ash heated at 10500C confirms the presence of feldspar and quartz as major phase and hematite (Fe2O3) and cristobalite phase as minor phase. This red clay deposits reinforced with different appropriate quantities of rice husk ash and fly ash could be used for various low temperature applications in industry and construction purposes. © 2014 JSR Publications. ISSN: 2070-0237 (Print); 2070-0245 (Online). All rights reserved. doi: http://dx.doi.org/10.3329/jsr.v6i3.15343 J. Sci. Res. 6 (3), 421-430 (2014)


2019 ◽  
Vol 2 (3) ◽  
pp. 117
Author(s):  
Stanislaus Stanislaus ◽  
Aniek Prihatiningsih

Keadaan tanah memiliki peran penting terhadap keperluan konstruksi dalam bidang teknik sipil, tanah berfungsi untuk menopang suatu bangunan konstruksi di atasnya, namun di beberapa tempat di Indonesia terdapat daerah yang memiliki tanah yang kurang baik seperti memiliki daya dukung rendah, hal ini sangat berpengaruh terhadap proses konstruksi. Selain tanah yang kurang baik limbah juga merupakan faktor permasalahan utama yang terjadi di Indonesia, limbah yang dibuang dan tertumpuk pada satu wilayah tertentu dapat menyebabkan dampak negatif terhadap lingkungan. Untuk menghindari hal tersebut maka dilakukanlah suatu penelitian agar limbah yang tidak dapat didaur ulang tersebut dapat digunakan sebagai bahan stabilisasi tanah, dan diharapkan dapat meningkatkan daya dukung dari tanah itu sendiri.Penelitian ini menggunakan tanah clay shale dari daerah Cietereup Sentul Bogor. Pengujian menggunakan unconfined compression test dengan komposisi variasi limbah yaitu serbuk kaca, abu sekam padi, styrofoam, dan fly ash type F sebesar 10% berdasarkan volume mold unconfined compression test.


2019 ◽  
Vol 8 (2) ◽  
pp. 4732-4737 ◽  

At present time, there are vastly available of various nanomaterials, by using this material it plays an important role in various applications along with geotechnical soil stabilization/strengthen techniques. In the present investigation the addition of Graphene Oxide (GO) solution as nanomaterial into the low cemented fly ash (Class F – fly ash) to improving various properties of a local available silty soil. The various tests such as light compaction test, unconfined compression test, direct shear test, liquid limit, and plastic limit test were performed on the newly formed matrix to check their respective behavior to stimulated actual site condition on the given matrix in the laboratory. Also Scanning Electron Microscopy (SEM) analysis was performed to study the structure of the newly formed matrix. The addition of small proportion GO in original soil-fly ash matrix decrease the plasticity index and at the same time increase the maximum dry density, unconfined compression strength, and cohesion value help to use newly soil matrix effectively.


Author(s):  
Violeta Voišnienė ◽  
Olga Kizinievič ◽  
Viktor Kizinievič ◽  
Jurgita Malaiškienė

This paper is a report on the results of a feasibility study on the immobilization of municipal solid waste incinerator fly ash by producing a fired clay brick. The main purpose of this work was to test the clay used in the manufacture of a fired clay brick that could incorporate municipal solid waste incinerator fly ash. The raw materials, municipal solid waste incinerator fly ash and clay, were mixed together in different proportions (100:0, 97.5:2.5, 95:5 and 92.5:7.5). Clay brick samples were heated to 1000 °C temperatures for 1 h. The fired clay brick specimens were characterised with respect to compressive strength, porosity, linear shrinkage (after drying, after firing) and density. Leaching tests, in accord with the European Union regulation, was done on fired clay brick made with different additions of municipal solid waste incinerator fly ash.


2018 ◽  
Vol 2 (2) ◽  
Author(s):  
J. Karthick ◽  
Ramkumar Thulasiram ◽  
S. Rajesh ◽  
M. Saravana Kumar ◽  
M. Thinakaranraj ◽  
...  

The objective of this paper is to determine the optimum fly ash content at which soil behavior is improved. Soil improvement is termed as soil stabilization. Soil stabilization depends on factors such as unconfined compression, cohesion, shear load, consolidation and permeability of soil and CBR value of soil. Fly ash is a thermal waste. Nearly half of the fly ash generated is not been used, hence usage of fly ash will reduce waste. Test conducted were sieve analysis, specific gravity, standard proctor compaction, unconfined compression, direct shear, free swell index, variable head permeability and consolidation for black cotton soil. Test also was conducted on soil replaced with fly ash in the level of 5%, 10% and 15%. Among the various replacement tried out, better results were observed for soil replaced with 10% of fly ash. Beyond the 10% level of replacement a reduction in performance was observed. Hence fly ash can be used for soil stabilization up to 10% replacement.


2018 ◽  
Vol 115 (6) ◽  
Author(s):  
S. Maheswaran ◽  
A. Ramachandra Murthy ◽  
G. N. Sakthi Priya
Keyword(s):  
Fly Ash ◽  

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