Sustainability assessment of concrete mixes

Hrabová, Kristýna; Teplý, Břetislav; Vymazal, Tomáš

doi:10.1088/1755-1315/444/1/012021

Cited by 11 publications

(11 citation statements)

References 5 publications

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“…This has a significant impact on performance requirements critical to the design procedure, life cycle analysis, reliability and, in addition, sustainability-based concepts [32][33][34].…”

Section: Introductionmentioning

confidence: 99%

Sustainability Levels in Comparison with Mechanical Properties and Durability of Pumice High-Performance Concrete

et al. 2021

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In the production of cement and concrete, mechanical and durable properties are essential, along with reasonable cost and sustainability. This study aimed to apply an evaluation procedure of the level of sustainability of mixtures of high-performance concretes (HPC) with various eco-friendly supplementary cementitious materials (SCM). The major supplementary cementitious materials (SCMs), namely, volcanic pumice pozzolan (VPP), Class C and F fly ash, ground granulated blast furnace slag of grade 120, silica fume, and metakaolin, were included. Twenty-seven concrete mixtures were analyzed using a previously presented comprehensive material sustainability indicator in a cost-effective variant. The results indicated that the rank of the concretes differed at 28, 56, and 91 days after concreting. In addition, the study showed no correlation of strength and diffusion parameters with sustainability indicators. Finally, this study will contribute to the optimal selection of mixtures of HPC with VPP in terms of sustainability, cost, and durability for future implementation in reinforced concrete bridge deck slabs and pavements. The values of sustainability indicators for pumice-based mixtures were compared with those for other SCMs, highlighting the sustainable performance of volcanic ash-based SCM.

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“…This has a significant impact on performance requirements critical to the design procedure, life cycle analysis, reliability and, in addition, sustainability-based concepts [32][33][34].…”

Section: Introductionmentioning

confidence: 99%

Sustainability Levels in Comparison with Mechanical Properties and Durability of Pumice High-Performance Concrete

et al. 2021

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“…Subsequently, according to formula (3), the SSEmean was divided by five (number of measurements in time), yielding RMSEmean = 0.0226. Similarly, according to equation ( 6), SSELR = 2.06 × 10 −3 was calculated and according to formula (7), RMSELR = 0.0203. Figure 9 shows RMSE for mean value and trend-line of the variation coefficient.…”

Section: Rmse Analysismentioning

confidence: 99%

“…In the sustainable design of the concrete structures, it is necessary to find the balance between the material side (i.e., the development of new concrete mixtures with the required properties [1][2][3]), an appropriate description of performance (i.e., testing and proper statistical evaluation [4][5][6]), and structural and modelling components (i.e., sufficiently durable and sustainable design [7][8][9][10]). All three components must be considered together and looked at from the perspective of the studied problem, financial demands, production, or a possible estimate of the reconstruction of the proposed structure.…”

Section: Introductionmentioning

confidence: 99%

Variation of Durability and Strength Parameters of Pumice Based Mixtures

2021

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The numerical modelling of chloride penetration into concrete is very sensitive to the correct description of the input data. In the recent era, high-performance concrete (HPC), which combines Portland cement and other supplementary cementitious materials, has been gaining attraction due to their desirable material properties and durability. The presented results show the application of the modified approach for the evaluation of the suitability of the time-dependent model for the variation of the diffusion coefficient. The 26 various binary and ternary-based concrete mixtures blended with volcanic pumice pozzolan (VPP) as a major supplementary cementitious material (SCM) are compared with the reference Ordinary Portland Cement mixture. Other SCMs namely fly ash, slag, silica fume, and metakaolin were also utilized in ternary-based concrete mixtures. In-depth statistical analysis was carried out to show the variability and effects of the amount of the volcanic pumice as an SCM on the diffusion coefficient. The mean value and regression via linear approximation of the time-dependent coefficient of variation of the diffusion coefficients were used as well as the Root of Mean Squared Error approach. The presented results are suitable as the component of the input parameters for the durability-related probabilistic assessment of the reinforced concrete structures exposed to chlorides. In addition, the time-dependent ultimate limit state-related data was presented.

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“…Although monetization in LCA is not very common, the advantage of eco-costs is that they are so-called "external costs" (i.e., costs for our society that are not incorporated in the price of a product), so they have a direct meaning to architects, business managers, and governmental policy makers. Recently, there have been increasing applications of eco-costs in the building industry-e.g., for concrete construction [40] and beams [41]. Eco-costs are also applied in full cost accounting (FCA), which is also called true cost accounting (TCA).…”

Section: Life Cycle Assessmentmentioning

confidence: 99%

Environmental and Economic Optimization of a Conventional Concrete Building Foundation: Selecting the Best of 28 Alternatives by Applying the Pareto Front

2021

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This research optimizes the environmental impact of a conventional building foundation in Northern Europe while considering the economic cost. The foundation is composed of piles and ground beams. Calculations are performed following relevant building Eurocodes and using life cycle assessment methodology. Concrete and steel accounted for the majority of the environmental impact of foundation alternatives; in particular, steel on piles has a significant influence. Selecting small sections of precast piles or low-reinforcement vibro-piles instead of continuous-flight auger piles can reduce the environmental impacts and economic costs of a foundation by 55% and 40%, respectively. However, using precast beams rather than building them on site can increase the global warming potential (GWP) by up to 10%. Increasing the concrete strength in vibro-piles can reduce the eco-costs, ReCiPe indicator, and cumulated energy demand (CED) by up to 30%; the GWP by 25%; and the economic costs by up to 15%. Designing three piles instead of four piles per beam reduces the eco-costs and ReCiPe by 20–30%, the GWP by 15–20%, the CED by 15–25%, and the costs by 12%. A Pareto analysis was used to select the best foundation alternatives in terms of the combination of costs and eco-burdens, which are those with vibro-piles with higher concrete strengths (low reinforcement), cast in situ or prefabricated beams and four piles per beam.

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Sustainability assessment of concrete mixes

Cited by 11 publications

References 5 publications

Sustainability Levels in Comparison with Mechanical Properties and Durability of Pumice High-Performance Concrete

Sustainability Levels in Comparison with Mechanical Properties and Durability of Pumice High-Performance Concrete

Variation of Durability and Strength Parameters of Pumice Based Mixtures

Environmental and Economic Optimization of a Conventional Concrete Building Foundation: Selecting the Best of 28 Alternatives by Applying the Pareto Front

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