Ecological Concrete Based on Blast-Furnace Cement with Incorporated Coarse Recycled Concrete Aggregate and Fly Ash Addition

Kubissa, Wojciech; Jaskulski, Roman; Reiterman, Pavel

doi:10.7569/jrm.2017.634103

Cited by 35 publications

(21 citation statements)

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“…Recycling of waste materials became necessary to reduce greenhouse gas emission. It is possible to considerably enhance the environmental friendliness of concrete production by increasing the usage of recycled concrete aggregate (RCA) and supplementary cementitious materials (SCM) in concrete industry [1,2]. The availability of natural sources of aggregates, which make up about 60-70% of concrete volume, is becoming more limited due to restrictions on quarrying operations and longer hauling distances.…”

Section: Introductionmentioning

confidence: 99%

Influence of additives on properties of concrete with recycled aggregate and fly ash

Wydra

2018

MATEC Web Conf.

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It is possible to considerably enhance the environmental friendliness of concrete production by increasing the usage of recycled concrete aggregate (RCA) and supplementary cementitious materials (SCM) in concrete industry [1, 2]. The idea of concrete with recycled concrete aggregate (RCA), additives such as microsilica, metakaolin, fluidized fly ash and superplasticizers might be controversial - it assumes usage of waste material and expensive additives - it is popular though. The aim of this paper was to determine, what the frost resistance of such concrete is. Additionally tests of other properties (sorptivity, absorbability and air void parameters) were performed.

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Section: Introductionmentioning

confidence: 99%

Influence of additives on properties of concrete with recycled aggregate and fly ash

Wydra

2018

MATEC Web Conf.

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“…The concrete mix proportions are presented in Table 2 (the unit of the concrete mix proportions is in kg/m 3 ). Reference to [11,34,35,36] can be made for more detailed descriptions of the concrete mixes.…”

Section: Assumptions and Values Adopted For Calculationsmentioning

confidence: 99%

Evaluation of Ecological Concrete Using Multi-Criteria Ecological Index and Performance Index Approach

Kubissa

Jaskulski

Chen

et al. 2019

Architecture, Civil Engineering, Environment

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The idea of optimized usage of raw materials and reduction of greenhouse gas emissions was adopted by numerous researchers all over the world [1,2,3,4]. Sustainable development is encompassed in the philosophy of modern urbanization planning [5,6,7]. In concrete industry, this idea is becoming increasingly well aware of. Development of energy efficient technologies in concrete production is often based on the use of suitable valorised binding materials, whose pro-duction is associated with lower energy consumption, such as fly ash, blast-furnace slag, ceramic dust, and so on [8,9,10,11]. The cement industry has been using waste materials over many years for the production of CEM II and CEM III cements, whose market share has been increasing recently from year to year [12,13,14]. Alternative fillers such as scrap tires or sludge ash from sewage treatment plants have been introduced [15,16,17]. The use of cements with additives often does not cause any deterioration of the properties of

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“…The replacement of cement by other cementing materials is the main approach to meet the required CO 2 reduction [ 10 , 11 ]. In addition, the application of supplementary cementitious materials (SCM) could be beneficial in terms of durability and other engineering requirements [ 12 , 13 , 14 ]. The more environmentally-friendly nature of such concrete results from the reduction of CO 2 emission associated with the production of cement clinker [ 15 ] and other factors negatively influencing the sustainability of the building industry.…”

Section: Introductionmentioning

confidence: 99%

Assessment of Rational Design of Self-Compacting Concrete Incorporating Fly Ash and Limestone Powder in Terms of Long-Term Durability

et al. 2020

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Self-compaction concrete (SCC) is ranked among the main technological innovations of the last decades. Hence, it introduces a suitable possibility for further utilization of supplementary cementitious materials (SCM) in terms of sustainable development. The aim of the work is the assessment of a new approach to binder design, which takes into consideration the activity of the used mineral additive. The proposed approach, which allows a systematic design of a binding system with varied properties of the used mineral additive, was studied on ternary blends consisting of Portland cement (PC), limestone powder and fly ash (FA). The verification was conducted on SCC mixtures in terms of their workability, mechanical properties and the most attention was paid to long-term durability. The long-term durability was assessed on the basis of shrinkage measurement, freeze-thaw resistance and permeability tests including initial surface absorption, chloride migration, water penetration and an accelerated carbonation test, which was compared with the evolution of carbonation front in normal conditions. The durability of studied mixtures was evaluated by using durability loss index, which allow general assessment on the basis of multiple parameters. The carbonation resistance had a dominant importance on the final durability performance of studied mixtures. The experimental program revealed that the proposed design method is reliable only in terms of properties in fresh state and mechanical performance, which were similar with control mixture. Despite suitable results of freeze-thaw resistance and shrinkage, an increasing amount of fly ash in terms of the new design concept led to a fundamental increase of permeability and thus to decay of long-term durability. Acceptable properties were achieved for the lowest dosage of fly ash.

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Ecological Concrete Based on Blast-Furnace Cement with Incorporated Coarse Recycled Concrete Aggregate and Fly Ash Addition

Cited by 35 publications

References 0 publications

Influence of additives on properties of concrete with recycled aggregate and fly ash

Influence of additives on properties of concrete with recycled aggregate and fly ash

Evaluation of Ecological Concrete Using Multi-Criteria Ecological Index and Performance Index Approach

Assessment of Rational Design of Self-Compacting Concrete Incorporating Fly Ash and Limestone Powder in Terms of Long-Term Durability

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