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Antoni .,Hendra Surya Wibawa,Djwantoro Hardjito
Pág. 51 - 56
This study evaluates the effect of particle size distribution (PSD) of high calcium fly ash on high volume fly ash (HVFA) mortar characteristics. Four PSD variations of high calcium fly ash used were: unclassified fly ash and fly ash passing sieve No. 20...
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Veerendrakumar C. Khed, Vyshnavi Pesaralanka, Musa Adamu, Yasser E. Ibrahim, Marc Azab, M. Achyutha Kumar Reddy, Ahmad Hakamy and Ahmed Farouk Deifalla
Self-compacting concrete (SCC) was developed to overcome the challenges of concrete placement in dense or congested reinforcement structure, where the concrete can flow under its own weight to fill the densely reinforced structure. However, production of...
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Chung-Hao Wu, Chung-Ho Huang, Yu-Cheng Kan and Tsong Yen
This study focuses on evaluating the effects of the fineness of fly ash on the strength, fracture toughness, and fracture resistance of concrete. Three fineness levels of fly ash that respectively pass sieves?no. 175, no. 250, and no. 32?were used. In ad...
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Sanjeeb Kumar Mohanty, Nirmal Kumar Pandit, Pawan Kumar Sah, Niraj Mahaseth, Rajesh Yadav, Dipti Ranjan Biswal, Benu Gopal Mohapatra, Brundaban Beriha, Ramachandra Pradhan and Sujit Kumar Pradhan
The management of unutilized fly ash poses challenges due to concerns about storage and its potential groundwater contamination. Within the road industry, where the bulk utilization of fly ash is feasible, its unsuitability for use in the base and sub-ba...
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Minson Simatupang, Romy Suryaningrat Edwin, Sulha, Wayan Mustika, Heriansyah Putra and Dede Heri Yuli Yanto
Currently, a soil stabilization approach using fly ash as an effective choice for increasing soil stiffness and strength has emerged. With the presence of water, the lime in the fly ash would be separated, generating cementitious materials binding the gr...
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Van-Ngoc Pham, Erwin Oh and Dominic E. L. Ong
The study aims to develop a reliable model using gene-expression programming (GEP) technique for estimating the unconfined compressive strength (UCS) of soil stabilization by cement and fly ash. The model considered the effects of several parameters, inc...
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Veysel Akyuncu,Mucteba Uysal,Harun Tanyildizi,Mansur Sumer
Pág. 337 - 353
This paper presents the modeling of an experimental investigation carried out to evaluate some mechanical and durability properties of concrete mixtures in which cement was partially replaced with Class C and Class F fly ash. A total of 39 mixtures with ...
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Seyedsaleh Mousavinezhad, Judit M. Garcia, William K. Toledo and Craig M. Newtson
For several decades, class F fly ash has been an attractive supplementary cementitious material, at least in part, due to its ability to reduce Portland cement consumption and mitigate alkali-silica reactions in concrete. However, fly ash availability is...
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Angeliki G. Lekatou and Sofia Tsouli
The present work studies the effect of fly ash content (0?25 wt.%), pH (8, 12.5), and steel type (316L, 304L) on the cyclic polarization of stainless steel rebars in electrolytes, simulating fresh concrete exposed to acid rain and corroded concrete cover...
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Antoni ,,Vindy Satrya,Djwantoro Hardjito
Pág. 38 - 43
This study focusses on the effect of milling of fly ash obtained from four different sources on the properties of high volume fly ash (HVFA) mortar. Two fly ash samples with low loss-on-ignition (LOI) were taken from a coal-fired power plant, while the o...
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Wallah S.E.
Pág. 73 - 78
Fly ash-based geopolymer concrete is manufactured using fly ash as its source material and does not use Portland cement at all. Beside fly ash, alkaline solution is also utilized to make geopolymer paste which binds the aggregates to form geopolymer conc...
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Tuan-Anh Bui and Ngoc-Tam Bui
The viscosity of lubricating oils is influenced by fly-ash additives and temperature, as they play a crucial role in regulating the viscosity of oils. Fly-ash additives are added to lubricating oils to improve oxidation resistance and prevent deposit for...
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Antoni Antoni,Stacia Dwi Shenjaya,Maria Lupita,Samuel Santosa,David Wiyono,Djwantoro Hardjito
Pág. 94 - 100
Circulating fluidized bed combustion (CFBC) is a newer type of burner that employ a circulating process to burn fuel effectively. CFBC burning process is gaining more popularity due to its compact size, high efficiency and lower burning temperature compa...
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Yanbing Zong, Xuedong Zhang, Emile Mukiza, Xiaoxiong Xu and Fei Li
In this study, SiO2?Al2O3?CaO?MgO steel slag ceramics containing 5 wt % MgO were used for the preparation of ceramic bodies, with the replacement of 5?20 wt % quartz and feldspar by fly ash. The effect of the addition of fly ash on the sintering shrinkag...
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Utkarsh Gawande,Shubham Kanhake,Arjun Lahane,Prasanna Naghbhide
Pág. 193 - 201
Black cotton soil is a expansive soil. And mostly found in Vidarbha region of Maharashtra, this soil is highly unstable and it should be stabilize for carry out construction work. Materials like fly ash, rise husk, nylon fiber are used to make soil stabl...
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Xuan Liu, Tao Jiang, Chenglong Li, Mingyu Wan, Wenzhu Xuan and Xingfu Wang
This research used fly ash and slag to create geopolymer foam concrete. They were activated with an alkali, resulting in a chemical reaction that produced a gel that strengthened the concrete?s structural integrity. The experimental approach involved var...
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Mariola Wasil
Landfill sealing layers protect groundwater and soil against contamination from waste leachate. Fly ash, which is a coal combustion by-product, might be used as a substitute material for natural soils to build sealing layers. To improve its properties, d...
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Agnieszka Michalik, Joanna Babinska, Filip Chylinski and Artur Piekarczuk
The paper presents the results of research on the properties of fly ashes from the process of flue gas denitrification by selective non-catalytic reduction (SNCR), consisting of dosing urea into the coal combustion chamber. The research was carried out o...
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Sampebulu?, V.
Pág. 92 - 99
The compressive and tensile strengths of concrete made in hot weather condition decreased due to loss of mixing water caused by high evaporation. One method to overcome the problem is the use of saturated fly ash aggregate. The water content in fly ash a...
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Aghiad Alhafez, Shingo Miyazawa, Nobukazu Nito, Ryuichiroh Kuga and Etsuo Sakai
Cement with fly ash has rarely been used in Japan, mainly because its strength development is slower than ordinary Portland cement. In this research, the effect of the new type of fly ash (which was modified by the electrostatic belt separation method) w...
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