scholarly journals Experimental investigation on partial replacement of fine aggregate by the effect of Coal bottom ash in concrete

2020 ◽  
Vol 983 ◽  
pp. 012010
Author(s):  
R Devananth ◽  
V Karthikeyan ◽  
S Sujatha ◽  
J Anto
Keyword(s):  
Experimental Investigation ◽  
Bottom Ash ◽  
Partial Replacement ◽  
Fine Aggregate ◽  
Coal Bottom Ash

scholarly journals Coal Bottom Ash as Partial Replacement of Fine Aggregate in Asphaltic Concrete

2020 ◽  
Vol 2 (1) ◽  
Author(s):  
H. Mohammed
Keyword(s):  
Fixed Bed ◽  
Bottom Ash ◽  
Partial Replacement ◽  
Fine Aggregate ◽  
Asphaltic Concrete ◽  
Air Voids ◽  
Coal Bottom Ash ◽  
Asphalt Mix ◽  
Materials Used ◽  
Marshall Stability

The effect of coal bottom ash (CBA) on the characteristics of asphaltic concrete was investigated with a view to assess its suitability as a partial replacement of fine aggregate. Coal procured from Lafia-Obi coal mines was burnt in a fixed bed combustor until a sand size residual was produced. The properties of the materials used for the study were characterize using standard procedures. The CBA was introduced in the asphalt mix at an increasing rate of 10, 15, 20 and 25% content by weight of the fine aggregate and test samples of asphaltic concrete were prepared. The samples were subjected to Marshall stability test. Results showed that the specific gravity and absorption test for granite dust were 2.45 and 0.25%, respectively, while those of the CBA were 2.86 and 0.58% respectively. The result of stability, flow, bulk density, voids filled in bitumen (VFB), air voids (VA) and voids in mineral aggregate (VMA) of the asphaltic concrete at 0% CBA were 12.02 kN, 3.04 mm, 2.491g/cm3, 66.0%, 4.3%, 12.7% respectively; while the values at 20% CBA content were 16.97 kN, 3.51mm, 2.514g/ cm3 , 71.2%, 3.4%, 11.9% respectively. The result showed that coal bottom ash in asphaltic mix improved its properties.

scholarly journals Penggunaan Abu Dasar Batubara Sebagai Pengganti Sebagian Agregat Halus pada Campuran Latasir B Terhadap Karakteristik Marshall

2015 ◽  
Vol 12 (2) ◽  
Author(s):  
Roza Gusman
Keyword(s):  
Power Plants ◽  
Thermal Power ◽  
Bottom Ash ◽  
Coal Ash ◽  
Asphalt Mixtures ◽  
Partial Replacement ◽  
Fine Aggregate ◽  
Coal Bottom Ash ◽  
Alternative Material ◽  
Total Proportion

Penggunaan Abu Dasar Batubara Sebagai Pengganti Sebagian Agregat Halus pada Campuran Latasir B Terhadap Karakteristik MarshallBasic Use of Coal Ash to Replace Some Fine Aggregate on Characteristics of Mixed Latasir B MarshallRoza Gusman1 & Alik Ansyori21,2Jurusan Teknik Sipil Fakultas Teknik – Universitas Muhammadiyah MalangAlamat korespondensi : Jalan Raya Tlogomas 246 Malang 65144AbstractCoal bottom ash is the residue from the burning of coal in thermal power plants. The use of coal bottom ash as an alternative material mix pavement is one way to take advantage of these residues. This study aimed to determine the effect of the use and the quantity of coal bottom ash as partial replacement of fine aggregate characteristics that meet the requirements for mixed marshall latasir B. Partial replacement of fine aggregate with coal bottom ash is made with a variation of 5%, 10%, 15%, 20%, 25%, 30%, and 35% of the total proportion of fine aggregate. Results of the study note that the use of coal bottom ash generally improves the quality mix latasir B. Latasir mixture B which has the characteristics of the best marshal is on the basis of coal ash content of 17.2%.Keywords: latasir B asphalt mixtures, coal bottom ash, marshall characteristics. AbstrakBottom ash batubara adalah residu dari pembakaran batubara di pembangkit listrik termal . Penggunaan batubara bawah abu sebagai alternatif campuran bahan perkerasan adalah salah satu cara untuk mengambil keuntungan dari residu tersebut . Penelitian ini bertujuan untuk mengetahui pengaruh penggunaan dan kuantitas bawah abu batubara sebagai pengganti parsial karakteristik agregat halus yang memenuhi persyaratan untuk campuran marshall latasir B. pengganti parsial agregat halus dengan bottom ash batubara dibuat dengan variasi 5 % , 10 % , 15 % , 20 % , 25 % , 30 % , dan 35 % dari total proporsi agregat halus . Hasil penelitian mencatat bahwa penggunaan bottom ash batubara umumnya meningkatkan kualitas campuran latasir B. Latasir campuran B yang memiliki karakteristik marshal terbaik adalah berdasarkan kadar abu batubara dari 17,2 % .Kata kunci : campuran aspal B latasir , bawah batubara abu , karakteristik marshall .

Effect of Local Metakaolin Developed from Natural Material Soorh and Coal Bottom Ash on Fresh, Hardened Properties and Embodied Carbon of Self-Compacting Concrete

2021 ◽  
Author(s):  
Manthar Ali Keerio ◽  
Abdullah Saand ◽  
Aneel Kumar ◽  
Naraindas Bheel ◽  
Karm Ali
Keyword(s):  
Portland Cement ◽  
Fresh Concrete ◽  
Bottom Ash ◽  
Partial Replacement ◽  
Experimental Program ◽  
Natural Material ◽  
Fine Aggregate ◽  
Self Compacting Concrete ◽  
Coal Bottom Ash ◽  
Hardened Properties

Abstract The carbon dioxide emissions from Portland cement production have increased significantly and Portland cement is the main binder used in self-compacting concrete, so there is an urgent need to find environmental friendly materials as alternative resources. In most developing countries, the availability of huge amounts of agricultural waste has paved the way for studying how these materials can be processed into self-compacting concrete as binder and aggregates compositions. Therefore, this experimental program was carried out to study the properties of self-compacting concrete (SCC) made with local metakaolin, coal bottom ash separately and combined. Total 25 mixes were prepared with four mixes as 5,10, 15 and 20% replacement of cement with metakaolin, four mixes as 10, 20, 30 and 40% of coal bottom ash as partial replacement of fine aggregates separately and 16 mixes prepared combined with metakaolin and coal bottom ash. The fresh properties were explored by slump flow, T50 flow, V-funnel, L-box, J-Ring sieve segregation test. Moreover, the hardened properties of concrete were performed for compressive, splitting tensile and flexural strength and permeability of SCC mixtures. Fresh concrete test results show that even if no viscosity modifier is required, satisfactory fresh concrete properties of SCC can be obtained by replacing the fine aggregate with coal bottom ash content. At 15% replacement of cement with local metakaolin is optimum and gave better results as compared to control SCC. At 30% replacement of fine aggregate is optimum and gave better results as compared to control SCC. In the combined mix 10% replacement of cement with metakaolin combined with 30% replacement of fine aggregate with coal bottom ash is optimum and gave better results as compared to control SCC.

scholarly journals Effect of Lightweight Waste-Based Aggregate on Lightweight Concrete

2019 ◽  
Vol 8 (4) ◽  
pp. 1041-1044
Keyword(s):  
Compressive Strength ◽  
Oil Palm ◽  
Coarse Aggregate ◽  
Lightweight Concrete ◽  
Bottom Ash ◽  
Control Sample ◽  
Waste Material ◽  
Partial Replacement ◽  
Fine Aggregate ◽  
Coal Bottom Ash

This paper study the effectiveness of waste material from industrial by-product as lightweight self-cured concrete. Waste material involved in this study is coal bottom ash, oil palm boiler clinker and hydrogel from diapers. Coal bottom ash (CBA) used as a fine aggregate replacement whilst oil palm clinker (OPBC) added into the concrete mixture as partial replacement of coarse aggregate in order to produce lightweight concrete. In addition, hydrogel from disposable diapers was acted as selfcuring agent. Different percentage of CBA as the fine aggregate replacement in concrete was used with the constant value of OPBC as coarse aggregate replacement. The result shows that the concrete sample containing 100% replacement of CBA has the lightest density as compared to other samples. In terms of compressive strength, the sample containing 40% replacement of CBA has similar compressive strength to control sample with reduction of the density of 22% when compared to the control sample. It is concluded that the recycling of CBA and OPBC as replacement material in lightweight concrete has good potential and also processing of CBA and OPBC to develop nano-material are the future potential of CBA and OPBC research for energy efficiency building.

Sign in / Sign up

Export Citation Format

Share Document