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Eco Efficient Concrete

Eco Efficient Concrete Book
Author : Fernando Pacheco-Torgal,S Jalali,João Labrincha,V M John
Publisher : Elsevier
Release : 2013-02-04
ISBN : 0857098993
Language : En, Es, Fr & De

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Book Description :

Eco-efficient concrete is a comprehensive guide to the characteristics and environmental performance of key concrete types. Part one discusses the eco-efficiency and life cycle assessment of Portland cement concrete, before part two goes on to consider concrete with supplementary cementitious materials (SCMs). Concrete with non-reactive wastes is the focus of part three, including municipal solid waste incinerator (MSWI) concrete, and concrete with polymeric, construction and demolition wastes (CDW). An eco-efficient approach to concrete carbonation is also reviewed, followed by an investigation in part four of future alternative binders and the use of nano and biotech in concrete production. With its distinguished editors and international team of expert contributors, Eco-efficient concrete is a technical guide for all professionals, researchers and academics currently or potentially involved in the design, manufacture and use of eco-efficient concrete. The first part of the book examines the eco-efficiency and life cycle assessment of Portland cement concrete Chapters in the second part of the book consider concrete with supplementary cementitious materials, including properties and performance Reviews the eco-efficient approach to concrete carbonation

Eco efficient concrete

Eco efficient concrete Book
Author : G. Habert
Publisher : Elsevier Inc. Chapters
Release : 2013-02-04
ISBN : 0128088915
Language : En, Es, Fr & De

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Book Description :

With the current focus on sustainability, it is necessary to evaluate cement’s environmental impact properly, especially when developing new ‘green’ concrete types. Therefore, this chapter investigates the available literature on every process concerned during the production of cement. Inventory data on energy use, CO2, PM10, SOx and NOx emissions are collected. Alternatives and improvement are briefly described regarding energy performance and mineralogy changes that it induces for clinker.

Eco efficient concrete

Eco efficient concrete Book
Author : B.L. Damineli,R.G. Pileggi,V.M. John
Publisher : Elsevier Inc. Chapters
Release : 2013-02-04
ISBN : 0128088923
Language : En, Es, Fr & De

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Book Description :

This chapter discusses strategies for mitigating CO2 emissions from the concrete chain. Current strategies, which focus on cement production processes such as clinker replacement, kiln efficiency, fuel substitution and CO2 capture, among others, are not effective enough to compensate for the increase in production that is expected to occur in the future. Binder use efficiency is therefore a crucial strategy for decreasing environmental impacts. Exploratory data from literature, real market and lab research indicates that the potential for decreasing emissions from the concrete chain is very high, and will require changes to the formulation and processing of concrete, as well as the production of aggregates, cement and fillers.

Use of Recycled Plastics in Eco efficient Concrete

Use of Recycled Plastics in Eco efficient Concrete Book
Author : Fernando Pacheco-Torgal,Jamal Khatib,Francesco Colangelo,Rabin Tuladhar
Publisher : Woodhead Publishing
Release : 2018-11-21
ISBN : 0081027338
Language : En, Es, Fr & De

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Book Description :

Use of Recycled Plastics in Eco-efficient Concrete looks at the processing of plastic waste, including techniques for separation, the production of plastic aggregates, the production of concrete with recycled plastic as an aggregate or binder, the fresh properties of concrete with plastic aggregates, the shrinkage of concrete with plastic aggregates, the mechanical properties of concrete with plastic aggregates, toughness of concrete with plastic aggregates, modulus of elasticity of concrete with plastic aggregates, durability of concrete with plastic aggregates, concrete plastic waste powder with enhanced neutron radiation shielding, and more, thus making it a valuable reference for academics and industrial researchers. Describes the main types of recycled plastics that can be applied in concrete manufacturing Presents, for the first time, state-of-the art knowledge on the properties of conventional concrete with recycled plastics Discusses the technological challenges for concrete manufactures for mass production of recycled concrete from plastic waste

New Trends in Eco efficient and Recycled Concrete

New Trends in Eco efficient and Recycled Concrete Book
Author : Jorge de Brito,Francisco Agrela
Publisher : Woodhead Publishing
Release : 2018-11-16
ISBN : 0081024819
Language : En, Es, Fr & De

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Book Description :

New Trends in Eco-efficient and Recycled Concrete describes different recycled materials that have been used in eco-efficient concrete, reviewing previous publications to identify the most effective recycled materials to be applied in concrete manufacture. New trends on eco-efficient concrete are presented, filling a gap in the market. Sections cover various recycled materials applied in concrete production, present the latest on the lifecycle analysis of recycled aggregate concrete, detail new trends in recycled aggregate concrete research, and finally, present updates on upscaling the use of recycled aggregate concrete and structural reliability. Focuses on new trends in recycled aggregate concrete and its applications (rather than the more subjective ‘sustainability’ aspects) Contains very important contributions from researchers in eco-efficient concrete, including Chi Sun Poon, Jorge de Brito, Valeria Corinaldesi, Francisco Agrela, etc. Presents a ‘one stop’ reference for a graduate course on sustainable construction

Eco efficient concrete

Eco efficient concrete Book
Author : F. Pacheco-Torgal,S. Miraldo,J.A. Labrincha,J. De Brito
Publisher : Elsevier Inc. Chapters
Release : 2013-02-04
ISBN : 0128089059
Language : En, Es, Fr & De

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Book Description :

Carbonation is a major cause of concrete structure deterioration, leading to expensive maintenance and conservation operations. The eco-efficient construction agenda favors the increase of the use of supplementary cementitious materials (SCMs) to reduce Portland cement's consumption and also the use of recycled aggregates concrete (RAC) in order to reduce the consumption of primary aggregates and to avoid landfill disposal of concrete waste. A wide range of literature has been published in the field of concrete carbonation related to the use of SCMs and/or RCA. Fowever, the different conditions used limit comparison, and in some cases contradictory findings are noted. Besides, since most investigations are based on the use of the phenolphthalein indicator, which provides a poor estimate of the real concrete carbonation depth, there is a high probability that past research could have underestimated the corrosion potential associated with concrete carbonation. This chapter reviews current knowledge on concrete carbonation addressing carbonation depth measurement and the use of SCMs and RAC.

Eco efficient concrete

Eco efficient concrete Book
Author : M.S. Konsta-Gdoutos
Publisher : Elsevier Inc. Chapters
Release : 2013-02-04
ISBN : 0128089105
Language : En, Es, Fr & De

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Book Description :

This chapter discusses the development of a materials science approach with an application to nanotechnology to optimize the processing and micro/nanoscale structure of cement-based materials reinforced with nanosized fibers and carbon nanotubes. The dispersion of multi-walled carbon nanotubes (MWCNTs) and carbon nanofibers (CNFs) for use in cementitious composites and specifically the effect of ultrasonication energy are discussed in detail. The nanomechanical properties of the CNT/ CNF cementitious nanocomposites are examined through nanoindentation experiments. Additionally, the excellent reinforcing ability of both the MWCNTs and CNFs is demonstrated. Finally, the effect of the addition of silica nanoparticles on the degradation by calcium leaching is discussed and explained.

Eco efficient concrete

Eco efficient concrete Book
Author : M.I. Sánchez de Rojas Gómez,M. Frías Rojas
Publisher : Elsevier Inc. Chapters
Release : 2013-02-04
ISBN : 012808894X
Language : En, Es, Fr & De

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Book Description :

This chapter discusses the major natural pozzolans, along with the technical, economic and environmental advantages of using such materials in cement manufacture. The characterisation, pozzolanic properties, reaction kinetics and mechanical strength of pozzolans of different origins are described. The use of new pozzolans obtained from fired clay waste, which can be classified as a natural calcined pozzolan, is also addressed.

Eco efficient concrete

Eco efficient concrete Book
Author : M. Frias Rojas,M.I. Sánchez de Rojas Gómez
Publisher : Elsevier Inc. Chapters
Release : 2013-02-04
ISBN : 0128088958
Language : En, Es, Fr & De

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Book Description :

This chapter aims to stress the importance of finding new artificial pozzolans for the manufacture of future, more eco-efficient cements and concretes, given the social and environmental benefits they deliver. It also addresses the scientific (characterisation, pozzolanic properties, reaction kinetics) and technical (physical and mechanical) aspects of new blended cement matrices.

Eco efficient concrete

Eco efficient concrete Book
Author : F. Pacheco Torgal,Y. Ding
Publisher : Elsevier Inc. Chapters
Release : 2013-02-04
ISBN : 0128089032
Language : En, Es, Fr & De

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Book Description :

The volume of polymeric wastes such as tyre rubber and polyethylene terephthalate (PET) bottles is increasing at a fast rate. An estimated 1000 million tyres reach the end of their useful lives every year and 5000 million more are expected to be discarded in a regular basis by the year 2030. Only a small part is currently recycled and millions of tyres are just stockpiled, landfilled or buried. As for PET bottles annual consumption is over 300 000 million units. The majority is just landfilled. This chapter reviews research published on the performance of concrete containing tyre rubber and PET wastes. Furthermore it discusses the effect of waste treatments, the size of waste particles and the waste replacement volume on the fresh and hardened properties of concrete.

Eco efficient concrete

Eco efficient concrete Book
Author : A.R. Pourkhorshidi
Publisher : Elsevier Inc. Chapters
Release : 2013-02-04
ISBN : 0128088966
Language : En, Es, Fr & De

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Book Description :

This chapter discusses various methods available for evaluating pozzolans as cement replacement materials. The merits and disadvantages of the methods are elaborated, and some existing anomalies are highlighted. Guides on applying a combination of these methods are presented in order to evaluate pozzolans in a way that complies with pozzolan performance in concrete.

Eco efficient concrete

Eco efficient concrete Book
Author : K. Zheng
Publisher : Elsevier Inc. Chapters
Release : 2013-02-04
ISBN : 0128089016
Language : En, Es, Fr & De

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Book Description :

The chapter begins by introducing sources of waste glass and ways of recycling waste glass in concrete. It then summarizes fresh properties and mechanical properties of recycled glass concrete and discusses how recycled waste glass affects these properties. The chapter elaborates on durability of recycled glass concrete, especially on alkali-silica reactivity since this is the main concern for recycled glass concrete. Finally, the chapter presents suggestions for further studies on recycled glass concrete, and proposes future trends of using recycled glass in concrete in more economic and eco-efficient ways.

Eco efficient concrete

Eco efficient concrete Book
Author : S.B. Marinković
Publisher : Elsevier Inc. Chapters
Release : 2013-02-04
ISBN : 0128088931
Language : En, Es, Fr & De

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Book Description :

The concrete industry is considered to be a large consumer of energy and natural resources, and is one of the main sources of greenhouse emissions and waste generation. The production and utilization of concrete and concrete structures have a large impact on the environment, and so the environmental assessment of concrete is of great importance in terms of achieving a sustainable society. This chapter includes instructions on how to apply the life cycle assessment (LCA) methodology to concrete, including a general description, life cycle inventory and life cycle impact assessment of concrete, future trends and sources of further information.

Eco efficient concrete

Eco efficient concrete Book
Author : M. Tyrer
Publisher : Elsevier Inc. Chapters
Release : 2013-02-04
ISBN : 0128089024
Language : En, Es, Fr & De

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Book Description :

The potential to use municipal waste incineration products in concrete has been examined over many years, both as a source of aggregates and as supplementary cementitious materials (SCM). With an understanding of the chemical evolution of these materials in the cement environment, both applications provide routes to the re-use of these materials in construction. Fly ashes and air pollution control residues must be washed to remove their considerable chloride content before use, after which, the remaining solids (largely aluminosilicates) may replace some fraction of the cementitious binder. Care must be taken when using these materials as SCMs, as volatile heavy metals present in the original waste may be concentrated in the fly ash. The bottom ashes from municipal solid waste (MSW) incineration also show sufficient pozzolanic reactivity when finely ground, to replace some cement in the binder phase. They may also serve directly as aggregate in concrete, although the irregular and angular particle shape may reduce its workability somewhat. Most MSW bottom ashes contain sufficient free aluminium to disrupt the setting reactions of the binder through hydrolysis reactions at high pH. Consequently, this must be removed or reacted by pre- treatment, prior to use in concrete and means of doing so are described here. Slower detrimental reactions are also known, such as alkali silca reaction, especially of container-glass fragments and these are considered here. Lastly, the use of MSW incineration products in manufactured aggregates is described, comparing sintering, melting and recrystallization, and plasma processing, with low temperature methods such as rapid carbonation technology.

Eco efficient concrete

Eco efficient concrete Book
Author : M. Frigione
Publisher : Elsevier Inc. Chapters
Release : 2013-02-04
ISBN : 0128089067
Language : En, Es, Fr & De

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Book Description :

This chapter describes the use of different polymers that can be added to fresh or hardened hydraulic cement, or used to replace the cement. The introduction of polymers can modify the characteristics and properties of concrete, and protect or repair concrete elements.

Eco efficient concrete

Eco efficient concrete Book
Author : E. Güneyisi,M. Gesoğlu,Z. Algin
Publisher : Elsevier Inc. Chapters
Release : 2013-02-04
ISBN : 0128088990
Language : En, Es, Fr & De

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Book Description :

Since ordinary self-compacting concrete (SCC) is usually associated with high material costs due to its high binder and chemical admixture content, researchers are currently attempting to produce SCC with high volumes of supplementary cementitious materials (SCMs), to make it cost effective and more durable. The SCMs used in this type of SCC, namely fly ash (FA), ground-granulated blast furnace slag (GGBFS), silica fume (SF), metakaolin (MK) etc., are generally industrial by-products and waste materials. A subsidiary effect of this SCC composition is to conserve the environment and non-renewable natural material resources. This chapter reviews the current literature on fresh properties of SCC containing high-volume SCMs, and explains the effect of high-volume SCMs on the mechanical and durability-related properties of SCC.

Eco efficient concrete

Eco efficient concrete Book
Author : A.E.B. Cabral
Publisher : Elsevier Inc. Chapters
Release : 2013-02-04
ISBN : 0128089040
Language : En, Es, Fr & De

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Book Description :

This chapter discusses the recycling of construction and demolition wastes (CDW) and the use of recycled aggregates in concrete. Classification and characteristics of recycled aggregates, physical and mechanical properties, and durability of recycled aggregate concrete are also discussed.

Eco efficient concrete

Eco efficient concrete Book
Author : B. Uzal
Publisher : Elsevier Inc. Chapters
Release : 2013-02-04
ISBN : 0128088974
Language : En, Es, Fr & De

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Book Description :

This chapter focuses on the materials and properties of high-volume natural pozzolan (HVNP) concrete. The characteristics of natural pozzolans used in high-volume pozzolan mixtures are discussed, together with the fresh and hardened properties of HVNP cementitious systems, their hydration characteristics and their microstructures.

Eco efficient concrete

Eco efficient concrete Book
Author : I. García-Lodeiro,A. Fernández-Jiménez,A. Palomo
Publisher : Elsevier Inc. Chapters
Release : 2013-02-04
ISBN : 0128089075
Language : En, Es, Fr & De

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Book Description :

Portland cement-based products (primarily concretes) are the world’s most commonly used building materials. Due to its huge production worldwide, the Portland cement industry poses economic, energy and environmental problems (7% of total world-wide co2 emissions). International concern over how to reduce co2 emissions has given rise within the scientific community to a growing interest in the development of materials and technologies able to reduce the impact of Portland cement and make construction a more sustainable industry. One of the possible alternative materials whose study and use has intensified in recent years is so-called alkaline cement, produced by alkali-activating aluminosilicates, whether of natural or industrial (blast furnace slag, fly ash, etc.) origin. Based on the nature of their cementitious components (the CaO–SiO2–Al2O3 system), alkaline cements may be grouped under two main categories: high-calcium and low-calcium cements. The reaction products governing the characteristics of the two types of end product differ. While the main reaction product precipitating in calcium-rich systems is a C-A-S-H type gel, in low calcium systems the reaction product is a N-A-S-H gel. A third type of alkaline cement, blended or hybrid cements, is a combination of the above. In this group, the reaction products comprise complex mixes of C-A-S-H + N-A-S-H gels. This chapter stresses the interest that has arisen around the study of these new cementitious systems.

Eco efficient concrete

Eco efficient concrete Book
Author : İ.B. Topçu
Publisher : Elsevier Inc. Chapters
Release : 2013-02-04
ISBN : 0128089008
Language : En, Es, Fr & De

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Book Description :

Ground granulated blast furnace slag (GGBFS) is a by-product of the iron-making process and because of its high calcium silicate content it has excellent cementious content and has been used in the construction industry for years as a replacement for ordinary Portland cement (OPC). GGBFS is also routinely used to limit the temperature rise in large concrete pours and is therefore a desirable material to use in mass concrete placements where control of temperatures is an issue. The more gradual hydration of GGBS cement generates both lower peak and less total overall heat than OPC. GGBFS was approved for use at a 70% replacement even though it is only allowed to use a maximum 25% instead of cement. It has a higher proportion of the strength-enhancing calcium silicate hydrates (CSH) than concrete made with only OPC, and a reduced content of free lime, which does not contribute to concrete strength.