Utilization of separator bag filter dust for high early strength cement production: Properties of concrete

Kim, Kyoung Min; Park, Sang Joon; Kim, Yong Jic

doi:10.1016/j.conbuildmat.2012.09.084

Cited by 6 publications

(2 citation statements)

References 16 publications

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“…Several researches have been recently developed to reduce the environmental impacts of the cement industry, mainly by the co-processing of residues as raw materials (Schneider, Romer, & Bolio, 2011) or fuel (Cembereau, 2013). Currently, emission of particulated material has been restricted by environmental codes, resulting in residues collected by filters (Kim, Park, & Kim, 2013), which, in turn, are used as a mineral admixture to Portland cement (Hekal, Abo-El-Enein, El-Korashy, Megahed, & El-Sayed, 2013). However, several minerals, such as basalt and granite, do not have large scale industrial application and require environmental management.…”

Section: Introductionmentioning

confidence: 99%

<b>Basalt waste added to Portland cement

2016

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Portland cement is widely used as a building material and more than 4.3 billion tons were produced in 2014, with increasing environmental impacts by this industry, mainly through CO 2 emissions and consumption of non-removable raw materials. Several by-products have been used as raw materials or fuels to reduce environmental impacts. Basaltic waste collected by filters was employed as a mineral mixture to Portland cement and two fractions were tested. The compression strength of mortars was measured after 7 days and Scanning Electron Microscopy (SEM) and Electron Diffraction Scattering (EDS) were carried out on Portland cement paste with the basaltic residue. Gains in compression strength were observed for mixtures containing 2.5 wt.% of basaltic residue. Hydration products observed on surface of basaltic particles show the nucleation effect of mineral mixtures. Clinker substitution by mineral mixtures reduces CO 2 emission per ton of Portland cement.

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Section: Introductionmentioning

confidence: 99%

<b>Basalt waste added to Portland cement

2016

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“…Today, environmental codes restrict the emission of particulate matters [16,17], which results in these residues being collected by plant filters and being used as an addition to Portland cement [18,19]. However, some minerals such as basalt do not have industrial application on a large scale, causing a significant issue of environmental management [20].…”

Section: Introductionmentioning

confidence: 99%

Use of basaltic waste as red ceramic raw material

Mendes

Morales²,

Reis³

2016

Cerâmica

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Nowadays, environmental codes restrict the emission of particulate matters, which result in these residues being collected by plant filters. This basaltic waste came from construction aggregate plants located in the Metropolitan Region of Londrina (State of Paraná, Brazil). Initially, the basaltic waste was submitted to sieving (< 75 mm) and the powder obtained was characterized in terms of density and particle size distribution. The plasticity of ceramic mass containing 0%, 10%, 20%, 30%, 40% and 50% of basaltic waste was measured by Atterberg method. The chemical composition of ceramic formulations containing 0% and 20% of basaltic waste was determined by X-ray fluorescence. The prismatic samples were molded by extrusion and fired at 850 °C. The specimens were also tested to determine density, water absorption, drying and firing shrinkages, flexural strength, and Young's modulus. Microstructure evaluation was conducted by scanning electron microscopy, X-ray diffraction, and mercury intrusion porosimetry. Basaltic powder has similar physical and chemical characteristics when compared to other raw materials, and contributes to ceramic processing by reducing drying and firing shrinkage. Mechanical performance of mixtures containing basaltic powder is equivalent to mixtures without waste. Microstructural aspects such as pore size distribution were modified by basaltic powder; albite phase related to basaltic powder was identified by X-ray diffraction.

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Experimental study on selection of early-strength agent for low-strength cementitious materials prepared with manganese tailings

Wang

Zhang

2018

Environ Earth Sci

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Utilization of separator bag filter dust for high early strength cement production: Properties of concrete

Cited by 6 publications

References 16 publications

<b>Basalt waste added to Portland cement

<b>Basalt waste added to Portland cement

Use of basaltic waste as red ceramic raw material

Experimental study on selection of early-strength agent for low-strength cementitious materials prepared with manganese tailings

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