Properties of concrete containing fly ash and bottom ash mixture as fine aggregate

2021 ◽  
pp. 1-11
Author(s):  
Bharadwaj Nanda ◽  
Sudipta Rout
Keyword(s):  
Fly Ash ◽  
Bottom Ash ◽  
Fine Aggregate

Assessment of Pb-slag, MSWI bottom ash and boiler and fly ash for using as a fine aggregate in cement mortar

2008 ◽  
Vol 154 (1-3) ◽  
pp. 766-777 ◽  
Author(s):  
Nabajyoti Saikia ◽  
Geert Cornelis ◽  
Gilles Mertens ◽  
Jan Elsen ◽  
Koenraad Van Balen ◽  
...  
Keyword(s):  
Fly Ash ◽  
Cement Mortar ◽  
Bottom Ash ◽  
Fine Aggregate ◽  
Mswi Bottom Ash

scholarly journals Hardened Behavior of Fly Ash Incorporated Concrete with Bottom Ash (FACB) as Partial Replacement of Fine Aggregate

2020 ◽  
Vol 9 (4) ◽  
pp. 2898-2907 ◽  
Keyword(s):  
Fly Ash ◽  
Thermal Power ◽  
Bottom Ash ◽  
Partial Replacement ◽  
Fine Aggregate ◽  
Experimental Scheme ◽  
Fly Ash Concrete ◽  
Wide Range ◽  
Binder Ratio ◽  
User Friendly

The utilization of thermal power plant waste ashes (fly ash and bottom ash) in concrete as partial replacement of cement and sand could be an important step toward development of sustainable, user-friendly and economical infrastructure. For this purpose, different concrete mixes were considered at constant binder content of 300kg/m3 and differ water-to-binder ratio (w / (c + f) mainly as 0.5 , 0.55 and 0.6. Also six wide range of fly ash replacement levels (f/c ratio) namely 0, 0.11, 0.25, 0.43, 0.67 and 1.0 were introduced in the experimental scheme. The 3-days to 180 days compressive strengths of FACB was measured at interval of 3, 7, 28, 56 and 90 days. This study also presents a relationship between the ratios of split tensile (ft) strength to compressive strength (fc). It is applicable to lean concrete having consideration of curing period at early age (3day) to long term (180days). The results of this investigation are principally important, because the comprehensive information on the dependability of the relationships has not been available for (w/c+f) and bottom ash combination. The investigational results of this work are indicated that waste-Bottom ash with the regular sizes can be used successfully as a fine aggregate in fly ash concrete (FAC). The Study also reflected in finding constant “k” by ACI code equation for fly ash and bottom ash mix concrete. It has obtained between 0.337 - 0.504. This could be useful in finding splitting tensile strength when concrete carrying fly ash and bottom ash.

Experimental Investigation of Utilizing Industrial Waste and Byproduct Materials in Controlled Low Strength Materials (CLSM)

2013 ◽  
Vol 639-640 ◽  
pp. 299-303 ◽  
Author(s):  
Hao Wu ◽  
Jian Yin ◽  
Shu Bai
Keyword(s):  
Fly Ash ◽  
Laboratory Experiments ◽  
Bottom Ash ◽  
High Water ◽  
Paper Sludge ◽  
Fine Aggregate ◽  
Fibrous Materials ◽  
Test Results ◽  
Natural Sand ◽  
Strength Tests

Laboratory experiments were conducted in this study to investigate the suitability and applicability of incorporating fly ash, bottom ash and paper sludge with various contents into CLSM mixtures. Fly ash was used as a substitute for Portland cement, bottom ash was added by partially replacing fine aggregate, while paper sludge was treated as a fibrous admixture. Physical and mechanically properties of the CLSM mixtures were examined through flowability, compressive strength, and splitting tensile strength tests. The test results indicated that both fly ash and bottom ash can be potentially used as basic materials for CLSM mixtures with desirable performances, and by limiting the amount of cement used in the mixture, the ultimate strength of CLSM could be easily controlled available for excavation. The strength of the CLSM mixtures were reduced to some extent by incorporating high content of fly ash, while they were significantly increased with high content of natural sand replaced by bottom ash. Due to the high water absorption of the paper sludge, the mixture with paper sludge added exhibited relatively low flowability, and it showed no benefits on enhancing compressive and splitting tensile strengths as common fibrous materials.

scholarly journals Investigative Analysis on The Properties of Concrete Replacing Fine Aggregate with Bottom ASH and Quarry Dust

2019 ◽  
pp. 22-44
Author(s):  
D. R. Sasirekha ◽  
S. Thejaswini
Keyword(s):  
Fly Ash ◽  
Bottom Ash ◽  
Coal Ash ◽  
Present Condition ◽  
Sustainable Construction ◽  
Fine Aggregate ◽  
River Sand ◽  
Conventional Concrete ◽  
Coal Bottom Ash ◽  
Quarry Dust

In present condition to full-fill the demand of sustainable construction, concrete made with different materials is the best choice for the construction industry. Generally, we use materials which are required for conventional concrete and addition to those we replace the low-cost materials such as bottom ash in this project we replace the coal bottom ash & quarry dust to the fine aggregate by variable percentages. Coal bottom ash is the by-product of coal combustion. The rock detritus filled in the fishers of coal become separator from the coal during pulverization. In the furnace, carbon, other combustible matter burns, & the non-combustible matter result in coal ash. The coal ash collector from the electro static precipitators is called fly ash. coal bottom ash constitutes about 20% of coal ash and the result is fly ash. The perfect substitute for reverse sand is quarry dust it is the one of the ingredients in manufacture of concrete the crusher dust is known as quarry dust can be used as alternative material to the river sand. quarry dust possesses similar properties as that of river sand, hence accepted as a building material. The aggregate replaced with concrete in various percentages as both BA and QD (10%,20%&30%). All replacements where done to the m30 grade of concrete. the concrete has been replaced by coal bottom ash accordingly to the percentage, and fine aggregate has been replaced by quarry dust in percentage. concrete mixtures where produced, tested & compared in terms of compressive strength, tensile, flexural strength are evaluated. The curing of cubes, cylinders, & beams is 7days 28days & 90days.

scholarly journals Properties of Alkali Activated Lightweight Aggregate Generated from Sidoarjo Volcanic Mud (Lusi), Fly Ash, and Municipal Solid Waste Incineration Bottom Ash

Materials ◽  
2020 ◽  
Vol 13 (11) ◽  
pp. 2528
Author(s):  
Puput Risdanareni ◽  
Yury Villagran ◽  
Katrin Schollbach ◽  
Jianyun Wang ◽  
Nele De Belie
Keyword(s):  
Compressive Strength ◽  
Fly Ash ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Bottom Ash ◽  
Lightweight Aggregate ◽  
Waste Incineration ◽  
Raw Material ◽  
Fine Aggregate ◽  
Municipal Solid Waste Incineration

Production of artificial lightweight aggregate (LWA) from industrial by-products or abundant volcanic mud is a promising solution to prevent damaging the environment due to the mining of natural aggregate. However, improvements are still needed in order to control the high water absorption of LWA and strength reduction in resulting concrete or mortar. Hence in this research, fly ash, municipal solid waste incineration bottom ash (MSWI BA), and Sidoarjo volcanic mud (Lusi) were employed as a precursor and activated using NaOH 6 M and Na2SiO3 in producing LWA. The influence of the type of the precursors on the physical properties of resulting LWA was investigated. The effect of replacing natural fine aggregate with the resulting LWA on the compressive strength and volume density of mortar was also determined. Finer particles, a high amount of amorphous phase, and low loss on ignition (LOI) of the raw material improved the properties of resulting LWA. Mortar compressive strength was decreased by 6% when replacing 16% by volume of natural fine aggregate with fly ash based LWA. Compared to the expanded clay LWA, the properties of alternative LWAs in this study were slightly, but not significantly, inferior. Alternative LWA becomes attractive when considering that expanded clay LWA requires more energy during the sintering process.

scholarly journals Processed bottom ash for replacing fine aggregate in making high-volume fly ash concrete

2017 ◽  
Vol 138 ◽  
pp. 01006 ◽  
Author(s):  
Antoni ◽  
Aldi Vincent Sulistio ◽  
Samuel Wahjudi ◽  
Djwantoro Hardjito ◽  
Djwantoro Hardjito
Keyword(s):  
Fly Ash ◽  
Bottom Ash ◽  
High Volume ◽  
Fine Aggregate ◽  
Fly Ash Concrete ◽  
High Volume Fly Ash

scholarly journals PENINGKATAN KUAT TEKAN BETON POND ASH PENGGANTI SEBAGIAN AGREGAT HALUS BERDASARKAN FUNGSI WAKTU

2018 ◽  
Vol 17 (1) ◽  
Author(s):  
Tumingan Tumingan ◽  
Salma Alwi ◽  
Rafian Tistro
Keyword(s):  
Compressive Strength ◽  
Fly Ash ◽  
Bottom Ash ◽  
Coal Ash ◽  
Time Function ◽  
Fine Aggregate ◽  
Pond Ash ◽  
Compressive Strength Test ◽  
Calculation Results ◽  
Test Result

ABSTRACTPond ash is a mixture of fly ash, bottom ash and other ash materials in a pond/lake/beach, pond ash materials are very overload and become waste, so the research of coal ash waste (pond ash) as a substitute of fine aggregate (sand) to increase the compressive strength of concrete influence of time function , were examined using cylindrical specimens of 100 mm diameter and 200 mm height. The specimens were made by taking a percentage ratio of pond ash by 0%: 5%: 10%: 15% and 20% in the mixture with a constant water cement ratio 0.49 based on the results of a normal concrete mix of f’c 25 MPa. The result of analysis of compressive strength to the time function obtained value at the age of 1 day the calculation results do not deviate from the equity line position, after the age of 3 and 7 days. The compressive strength test of concrete resulted in the value of over estimate means that the value of the test result is lower than the result of the equation can be stated that the hardening process of the concrete press is slow, while the age of 14, 28 days and so on the contrary is the result of compressive strength below the equity line or under estimate means the result value the test is higher than the result of the equation so that it can be stated that the process of hardening presses the concrete faster.Keywords: Coal Ash, Pond Ash, Compression strength concrete, time function.ABSTRAKPond ash adalah campuran bahan fly ash, bottom ash dan abu lainnya dalam sebuah kolam, bahan pond ash sangat melimpah dan menjadi limbah, maka di teliti pengaruh bahan limbah abu batubara (pond ash) sebagai pengganti sebagian agregat halus (pasir) terhadap peningkatan kuat tekan beton pengaruh fungsi waktu, diteliti menggunakan spesimen berbentuk silinder diameter 100 mm dan tinggi 200 mm. Spesimen dibuat dengan mengambil perbandingan prosentase pond ash sebesar 0%: 5%: 10%: 15% dan 20% terhadap campuran dengan faktor air semen konstan 0,49 berdasarkan rancangan campuran beton normal f’c 25 MPa. Hasil analisa pengujian kuat tekan terhadap fungsi waktu diperoleh nilai pada umur 1 hari hasil perhitungan tidak menyimpang dari posisi garis ekuitas, setelah umur 3 dan 7 hari, hasil perhitungan kuat tekan menghasilkan nilai over estimate berarti nilai hasil pengujian lebih rendah dari hasil persamaan dapat dinyatakan bahwa proses pengerasan kaut tekan beton lambat, sedangkan umur 14, 28 hari dan seterusnya terjadi sebaliknya yaitu menghasilkan kuat tekan dibawah garis ekuitas atau under estimate berarti nilai hasil pengujian lebih tinggi dari hasil persamaan sehingga dapat dinyatakan bahwa proses pengerasan kaut tekan beton semakin cepat.Kata Kunci : Abu Batubara, Pond ash, Kuat tekan Beton, fungsi waktu

scholarly journals Influence of Coal Ash on Dense Bituminous Macadam

2020 ◽  
pp. 50-53
Keyword(s):  
Fly Ash ◽  
Bottom Ash ◽  
Coal Ash ◽  
Ash Content ◽  
Engineering Properties ◽  
Fine Aggregate ◽  
Coarse Aggregates ◽  
Fine Aggregates ◽  
Maximum Stability ◽  
Pavement Construction

In the present study, dense graded bituminous mix specimens are prepared using natural aggregate as coarse aggregates, bottom ash as fine aggregates and coal ash as filler. Proportion of aggregate for dense graded bituminous macadam (DBM) grading has been considered as per MORTH (2013) having nominal maximum aggregates size (NMAS) 26.5 mm. The bitumen used is VG20. Firstly, bottom ash and fly ash was used as fine replacement in DBM mix. In this, the total coal ash content is taken as 35% by weight of the total mix, from which the percentage of fly ash as mineral filler is fixed, i.e. 5% of weight of the mix. The bottom ash content is varied according to the DBM gradation specified in MORTH (2013). Detailed study with Marshall test results were used to determine the Marshall characteristics, optimum binder content and also optimum use of coal ash. The maximum stability value of 11.826 kN was achieved when 14% of coal ash by weight of the mix was mixed for preparing DBM samples. It is finally observed that results are not only satisfactory, but also much improved engineering properties with coal ash as fine aggregate and filler. Utilization of non-conventional aggregate like coal ash may help to find a new way of bituminous pavement construction.

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