Influence of Partial Replacement of Cement by Industrial Wastes on Properties of Concrete

Verma, Nikhil Kumar

doi:10.1007/978-981-15-5195-6_54

Cited by 4 publications

(3 citation statements)

References 3 publications

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“…Wpływ popiołu lotnego i pyłu krzemionkowego badano osobno, aby zrozumieć ich oddziaływanie na przepuszczalność i właściwości mechaniczne betonu, o dużej wytrzymałości (9). Po dokładnych badaniach stwierdzono, że dynamika przyrostu wytrzymałości betonu z dodatkiem pyłu krzemionkowego i popiołu lotnego, jako mieszanki trójskładnikowej jest lepsza niż w przypadku zwykłego betonu (10 ). Przyczyną lepszej wytrzymałości betonu z mieszankami trójskładnikowymi była gęstsza matryca uzyskana dzięki zastosowaniu drobniejszych frakcji, a mianowicie pyłu krzemionkowego i popiołu lotnego (11).…”

Section: Introductionunclassified

“…The infl uence of fl y ash and silica fume were separately studied, to explain their effect on the permeability and mechanical properties of high-performance concrete (9). After careful and numerous studies, it was concluded, that the strength gain of the concrete using silica fume and fl y ash as ternary blend exhibited superior properties as the ordinary concrete (10 ). The reason for better strength of concrete with ternary blends was due to the denser matrix achieved to the usage of fi ner particles such as silica fume and fl y ash (11).…”

Section: Introductionmentioning

confidence: 99%

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Statistical analysis on mechanical behaviour of ternary blended high strength concrete

Robinson¹,

Srisanthi²

2023

Cement Wapno Beton

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The growing demand for high strength concrete [HSC] in the construction industry increases the usage of cement, resulting in environmental issues. Recent studies are showing that the utilization of cementitious materials in concrete can effectively reduce the volume of cement. In the present study, ternary blended combinations were prepared using cement, silica fume, and fly ash to attain the HSC. Here, cement was partially replaced by silica fume [2.5, 5, 7.5, and 10%] and fly ash [5, 10, and 15%], respectively. Mini slump cone test was conducted to identify the compatibility of cement paste with polycarboxylate ether [PCE] based superplasticizer. The packing density of aggregates was calculated to reduce the voids and improve the particle distribution in HSC. An experimental investigation was carried out, and the ultimate compressive strength was obtained as 71.55 MPa at 28 days of curing. Multi linear regression analysis was conducted to simulate the mix design for aiding the prediction of compressive strength of the HSC.

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Section: Introductionunclassified

Section: Introductionmentioning

confidence: 99%

Statistical analysis on mechanical behaviour of ternary blended high strength concrete

Robinson¹,

Srisanthi²

2023

Cement Wapno Beton

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“…However, the production of OPC is a highly intense process, which includes a calcination step with temperatures up to 1500 • C, resulting in significant carbon dioxide (CO 2 ) emissions and, consequently, a very harmful environmental impact [2,3]. Partial replacements of OPC with industrial wastes are common practice nowadays [4,5], using, for instance, ground granulated blast-furnace slag [6], coal fly ash [7], ladle slag [8,9], ceramic waste [10], among others.…”

Section: Introductionmentioning

confidence: 99%

Iron and Aluminium Production Wastes as Exclusive Components of Alkali Activated Binders—Towards a Sustainable Alternative

et al. 2021

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The sustainability of resources is becoming a worldwide concern, including construction and building materials, especially with the alarming increase rate in global population. Alternative solutions to ordinary Portland cement (OPC) as a concrete binder are being studied, namely the so-called alkali-activated cements (AAC). These are less harmful to the environment, as lower CO2 emissions are associated with their fabrication, and their mechanical properties can be similar to those of the OPC. The aim of developing alkali-activated materials (AAM) is the maximization of the incorporated recycled materials, which minimises the CO2 emissions and cost, while also achieving acceptable properties for construction applications. Therefore, various efforts are being made to produce sustainable construction materials based on different sources and raw materials. Recently, significant attention has been raised from the by-products of the steelmaking industry, mostly due to their widespread availability. In this paper, ladle slag (LS) resulting from steelmaking operations was studied as the main precursor to produce AAC, combined with phosphating bath sludge—or phosphate sludge (PS)—and aluminium anodising sludge (AS), two by-products of the surface treatment of metals, in replacement rates of 10 and 20 wt.%. The precursors were activated by two different alkaline solutions: a combination of commercial sodium hydroxide and sodium silicate (COM), and a disposed solution from the cleaning of aluminium extrusion steel dies (CLE). This study assesses the influence of these by-products from the steelmaking industry (PS, AS and CLE) on the performance of the alkali-activated LS, and specifically on its fresh and hardened state properties, including rheology, heat of hydration, compressive strength and microstructure and mineralogy (X-ray diffraction, scanning electron microscopy coupled with energy dispersive spectroscopy and Fourier transform infra-red. The results showed that the CLE had no negative impact on the strength of the AAM incorporating PS or/and AS, while increasing the strength of the LS alone by 2×. Additionally, regardless of the precursor combination, the use of a commercial activator (COM) led to more fluid pastes, compared with the CLE.

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State of the art review on supplementary cementitious materials in India – II: Characteristics of SCMs, effect on concrete and environmental impact

Gupta

Chaudhary

2022

Journal of Cleaner Production

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Influence of Partial Replacement of Cement by Industrial Wastes on Properties of Concrete

Cited by 4 publications

References 3 publications

Statistical analysis on mechanical behaviour of ternary blended high strength concrete

Statistical analysis on mechanical behaviour of ternary blended high strength concrete

Iron and Aluminium Production Wastes as Exclusive Components of Alkali Activated Binders—Towards a Sustainable Alternative

State of the art review on supplementary cementitious materials in India – II: Characteristics of SCMs, effect on concrete and environmental impact

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