Effect of supplementary cementitious materials on reduction of CO2 emissions from concrete

Yang, Keun–Hyeok; Jung, Yeon‐Back; Cho, Myung-Sug; Tae, Sungho

doi:10.1016/j.jclepro.2014.03.018

Cited by 462 publications

(162 citation statements)

References 12 publications

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“…Regarding the relation between sustainability and the use of supplementary cementitious materials in the construction of marine structures in general and particularly for caisson breakwaters, it is mainly focused on the reduction of CO 2 emissions [48]. It has been established that the manufacturing process of one ton of pure clinker (main component of ordinary Portland cement) produces the emission of approximately 0.89 tons of CO 2 to atmosphere [49].…”

Section: Present and Future Of Caisson Breakwaters Technology: An Impmentioning

confidence: 99%

From Julius Caesar to Sustainable Composite Materials: A Passage through Port Caisson Technology

et al. 2018

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Abstract:The breakwater construction technique using floating concrete caissons is well-known nowadays as a widespread system. Yet do we really know its origin? Since Julius Caesar used this technology in Brindisi (Italy) up to the Normandy landings in June 1944, not only has this technology been developed, but it has been a key item in several moments in history. Its development has almost always been driven by military requirements. The greatest changes have not been conceptual but point occurring, backed by the materials used. Parallelisms can be clearly seen in each new stage: timber, opus caementitium (Roman concrete), iron and concrete . . . However, nowadays, achieving a more sustainable world constitutes a major challenge, to which the construction of caissons breakwaters must contribute as a field of application of new eco-friendly materials. This research work provides a general overview from the origins of caissons until our time. It will make better known the changes that took place in the system and their adaptation to new materials, and will help in clarifying the future in developing technology towards composite sustainable materials and special concrete. If we understand the past, it will be easier to define the future.

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Section: Present and Future Of Caisson Breakwaters Technology: An Impmentioning

confidence: 99%

From Julius Caesar to Sustainable Composite Materials: A Passage through Port Caisson Technology

et al. 2018

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“…Thus significant quantities of pozzolanic material including fly ash, rice husk ash, silica fume, granulated glass blast-furnace slag and bagasse ash are used to replace cement in order to improve the fresh state properties, control generation of heat and to reduce creep and shrinkage problems (Sua-Iam and Makul, 2013;Sua-Iam and Makul, 2014;Rahman et.al., 2014;Thomas and Gupta, 2013). It is also indirectly beneficial for the environment due to the reduction of carbon dioxide emissions associated with the manufacture of Portland cement clinker (Yang et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Workability and heat of hydration of self-compacting concrete incorporating agro-industrial waste

Nagaratnam

Rahman

Mirasa

et al. 2016

Journal of Cleaner Production

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This paper presents an experimental study on the workability and the heat of hydration in Self-compacting concrete (SCC) incorporating agro-industrial waste and blended aggregates.The control mixture contained only Ordinary Portland Cement (OPC) as the binder while the remaining mixtures incorporated binary and ternary cementitious blends of OPC, palm oil fuel ash (POFA) and fly ash. The replacement of waste was from 10% to 40% by mass of the total cementitious material of the concrete for workability test and limited to 30% and 40% replacement for the heat of evaluation test. Workability i.e. passing ability, filling ability and segregation resistance was determined and semi-adiabatic temperature rise during the initial stage of hydration was measured by thermocouples. It was observed that fly ash mixes required the least amount of super-plasticiser (SP) to obtain a workable SCC, however, POFA mixes had the reverse effect. The ternary use of POFA and fly ash had better workability properties than the POFA mixes and performed the best in terms of segregation resistance.The ternary mixes also had the lowest amount of heat dissipation with peak temperatures occurring earlier than the fly ash mixes. The experimental studies indicate that ternary blend SCC with POFA and fly ash has significant potential when considering a sustainable M A N U S C R I P T A C C E P T E D ACCEPTED MANUSCRIPT 3 construction material hence also providing a cleaner production solution for the palm oil industry.

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“…These materials are usually industrial byproducts and, therefore, the production of these materials does not increase the CO 2 emission of the cement industry. The amount of the used cement can be also reduced by the use of SCMs [5].…”

Section: Introductionmentioning

confidence: 99%

“…The metakaolin was made from kaolin by thermal activation, and the silica fume was a by-product of silicon and ferrosilicon alloy production [6,7,8]. The concrete structures, which contain these types of SCMs, could be applied in corrosive environment, like water treatment plants, sewage plants and systems, agricultural silos or slurry storage tanks [9].…”

Section: Introductionmentioning

confidence: 99%

Properties of cement mortars in fresh and hardened condition infl uenced by combined application of SCMs

Mlinárik¹,

Kopecskó²,

Borosnyói³

2016

Epitoanyag - JSBCM

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Abstractin the hardened cement paste -through pozzolanic reactions -additional hydration products can be formed by the use of supplementary cementing materials (scms). the expected results of these processes are: increase in strength, decrease in permeability and the improvement of other important durability properties. in the present research, properties of mortar mixtures were investigated with different cement substitution rates of scms both in fresh and hardened conditions. the consistence of mixtures was determined by flow table test, and the change in workability was repeatedly measured until 120 minutes. the specimens were stored in water up to the age of 7 days then under laboratory conditions (in climate chamber of 20±3°c temperature and rH=65% relative humidity) up to the age of 28 days. Afterwards half of the specimens were immersed into and stored under water and the other half was kept continuously under laboratory conditions. the properties of the hardened specimens (flexural tensile strength, compressive strength, water absorption, apparent density and apparent porosity) were investigated at the age of 28, 56, 90 days. seven mortar mixtures were made of cem i 42.5 n Portland cement with different cement substitution ratios of metakaolin (mk) and/or silica fume (sF). Quartz sand was used as aggregate with the range of 0/2 mm particle size. the results of consistence measurements showed that the flow values of the fresh mortar mixtures which contain scms are smaller comparing with the reference mixtures (without scms), since the physical properties of these materials (particle size, specific surface area, particle shape, etc.) influence the consistence. the specimens with smaller substitution ratio showed more effective utilization of scms in the view of strength. the water absorption and apparent porosity were higher, and at the same time the apparent density was smaller than those of the mixtures with higher substitution ratios.

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Effect of supplementary cementitious materials on reduction of CO2 emissions from concrete

Cited by 462 publications

References 12 publications

From Julius Caesar to Sustainable Composite Materials: A Passage through Port Caisson Technology

From Julius Caesar to Sustainable Composite Materials: A Passage through Port Caisson Technology

Workability and heat of hydration of self-compacting concrete incorporating agro-industrial waste

Properties of cement mortars in fresh and hardened condition infl uenced by combined application of SCMs

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