The incorporation of wood waste ash as a partial cement replacement material for making structural grade concrete: An overview

Chowdhury, Swaptik; Mishra, Mihir; Suganya, Om

doi:10.1016/j.asej.2014.11.005

Cited by 187 publications

(125 citation statements)

References 16 publications

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“…This suggests great potential of the biomass ash which may improve the packing density of blends. This observation differs from literature 5,7,9,19,24,25 where the focus was mainly on the fine particle range (below 90 µm) of wood fly ash. Moreover, only a few papers deal with the reuse of woody fly ash as a sand replacement 9 .…”

Section: Biomass Ash Characterizationcontrasting

confidence: 55%

“…The maximum soundness level reported in literature 6,7,24 was for a 30 % replacement, which was still much lower than the maximum allowable soundness limit. Moreover, it is interesting that the 10 % addition shows lower expansion than plain cement paste (confirmed by three mixing repetitions of the test, with a total of 9 replicates).…”

Section: Soundnessmentioning

confidence: 94%

“…Chowdhury et al 24 gave a review on the work done on the reuse of wood ash in concrete from 1991 to 2012. Work on ash obtained from the combustion of forest waste wood and agricultural waste escalated 5,7,9,19,25 .…”

Section: Introductionmentioning

confidence: 99%

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Reuse of Woody Biomass Ash Waste in Cementitious Materials

Ukrainczyk

Vrbos

Koenders

2016

Chem.Biochem.Eng.Q.

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There is an increased interest in the reuse of ash waste from biomass combustion, being a sustainable source of energy. This paper investigates the partial replacement of cement and sand in building materials with fly ash waste generated from combustion of woody biomass waste. The results show that the ash widens the particle size distribution of cement and has minerals complementary to portland cement, thus justifying its application as cement replacement, but with a relatively high amount of free CaO and MgO that may exert significant expansion. With ash addition, the rate of hydration, strength, and workability decreased. The optimum dosage showed 15 % of ash, replacing 5 % of cement and 3.33 % of sand, which can still produce a structural grade cementitious material with acceptable workability and mechanical properties. The ash exhibits hydraulic and pozzolanic activity that initially increases and subsequently decreases the amount of Ca(OH) 2 in the hydrated material.

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Section: Biomass Ash Characterizationcontrasting

confidence: 55%

Section: Soundnessmentioning

confidence: 94%

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Reuse of Woody Biomass Ash Waste in Cementitious Materials

Ukrainczyk

Vrbos

Koenders

2016

Chem.Biochem.Eng.Q.

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“…Drvni otpad se smatra ugljično neutralnim gorivom, jer drvo apsorbira istu količinu ugljičnog dioksida dok raste koliko ga ispušta izgaranjem te ima prednost u odnosu na druge vrste biomase zbog manje proizvodnje otpadaka [2]. U 2010. godini je u Europskoj uniji na drvo i drvni otpad otpalo ukupno 49 % od ukupne potrošene energije proizvedene uz pomoć obnovljivih izvora u EU [3].…”

Section: Uvodunclassified

“…Troškovi upravljanja otpadnim pepelom iz biomase iznose između 200 i 500 eura po toni, a u budućnosti se može očekivati povećanje troškova odlaganja u obliku poreza ili naknada na odlaganje, kao i poteškoće u pronalaženju novih odlagališta te strože EU direktive vezano uz odlaganje [13]. Zasad se 70 % pepela iz drvne biomase (PDB) odlaže, 20 % se nastoji primijeniti kao dodatak tlu u poljoprivredi i 10 % za ostale namjene [2,14]. Odlaganje pepela iz drvne biomase bez ikakva oblika kontrole može prouzročiti onečišće-nje zraka sitnim česticama nošenim vjetrom [15], onečišćenje podzemnih voda zbog izluživanja teških metala iz pepela, te ulazak teških metala u prehrambeni lanac [16].…”

Section: Gospodarenje Pepelom Iz Drvne Biomaseunclassified

Use of wood biomass ash (WBA) as a cement replacement in concrete

Carević¹,

Štirmer²,

Pečur³

2017

Zajednički Temelji 2017 - Peti Skup Mladih Istraživača Iz Područja Građevinarstva I Srodnih Tehničkih Znanosti - Zbornik Radova

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SažetakPotreba za energetskom neovisnošću s jedne te pritisci na okoliš s druge strane doveli su do povećane potražnje i ulaganja u obnovljive izvore energije. Europska unija je postavila cilj da udio obnovljivih izvora energije u ukupnoj energetskoj potrošnji bude 20 % do 2020. godine (Direktiva o korištenju obnovljivih izvora energije 2009/28/EC), odnosno 27 % do 2030. godine (Okvir za klimatsku i energetsku politiku u razdoblju 2020. -2030. godine). Povećanje korište-nja biomase kao obnovljivog izvora energije dovelo je do porasta količine pepela čija cijena odlaganja sve više raste. Stoga je potrebno osigurati njegovo održivo i učinkovito gospodarenje. Jedna od mogućnosti održivog gospodarenja pepelom jest njegova primjena u građevinskoj industriji. U radu je prikazana problematika gospodarenja pepelom iz drvne biomase (PDB), osvrt na karakterizaciju PDB-a, te preliminarni rezultati ispitivanja tlačne čvrstoće i čvrstoće na savijanje cementnih kompozita s različitim udjelima PDB-a kao zamjene za cement. Ključne riječi: obnovljivi izvor energije, drvna biomasa, pepeo iz drvne biomase, betonska industrija Use of wood biomass ash (WBA) as a cement replacement in concrete AbstractThe energy independence need and the concern of our environment has led to an increasing demand investment in renewable energy and their sources. Under Directive 2009/28/EC on the promotion of the use of energy from renewable sources, the European Union (EU) has set the goal to reach a 20 % renewable energy by the end of 2020. Moreover, within 2030 framework for climate and energy (COM/2014/015) agreed on EU´s long-term commitment target of at least 27 % for the share of renewable energy consumed in the EU in 2030. Consequently with increasing of combustion of biomass in the energy production, the amount of ash derived from biomass combustion is also increasing. These significant quantities of ash requires its sustainable management. One of possible solution for its management is utilization of wood biomass ash (WBA) in the construction industry. This paper describes problems regarding WBA management, review of WBA properties and preliminary results of testing mechanical properties (compressive and flexural strength) of cement composites made with WBA in different amounts per cement mass.

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A Reusable Structural System Fit for Geometrical Standardisation and Serial Production

et al. 2022

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A series of demountable connections for reusable composite flooring systems and a standardized adjustable steel connection have been developed and tested, to facilitate circular economy as well as the serial production of structural elements and the suitability to be added into BIM or other digital tools. Demountable beam and floor elements and adjustable steel connections form the basis of a Lego-liked 'plug and play' circular framed structural system. This paper presents the proposed circular system, the results from experiments and finite element analyses and indicates the analysing methods for structural engineers to open a path way for fully implementation of the structures 'as built' into digital tools, fabrication and construction.

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The incorporation of wood waste ash as a partial cement replacement material for making structural grade concrete: An overview

Cited by 187 publications

References 16 publications

Reuse of Woody Biomass Ash Waste in Cementitious Materials

Reuse of Woody Biomass Ash Waste in Cementitious Materials

Use of wood biomass ash (WBA) as a cement replacement in concrete

A Reusable Structural System Fit for Geometrical Standardisation and Serial Production

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