Impact of Embodied Energy on materials/buildings with partial replacement of ordinary Portland Cement (OPC) by natural Pozzolanic Volcanic Ash

Kupwade‐Patil, Kunal; Wolf, Catherine De; Chin, Stephanie; Ochsendorf, John; Hajiah, Ali; Al-Mumin, Adil; Büyüköztürk, Oral

doi:10.1016/j.jclepro.2017.12.234

Cited by 88 publications

(23 citation statements)

References 21 publications

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“…The data from this (and previous) versions have been used in a number of studies. Therefore, no future validation is needed [50][51][52]. In addition to this, data have been organized based on (LCA), (ISO) 14040/44 principles, and associated framework developed by Hammond and Jones [53].…”

Section: Part 1: Information and Details About Proposed House Buildinmentioning

confidence: 99%

“…The search for replacements for cement will provide more alternatives for the industry. Based on a study by Kupwade-Patil et al [50], one example is pozzolans, which can be found in Saudi Arabia. This supports the proposal of reducing the environmental impacts of concrete production by a number of cement alternatives, not just PFA and GGBS.…”

Section: Public Acceptance Of Sustainable Solutionsmentioning

confidence: 99%

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A Resilience and Environmentally Sustainable Assessment Framework (RESAF) for Domestic Building Materials in Saudi Arabia

2020

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In Saudi Arabia, the carbon footprint and energy use that results from using concrete in construction is a major negative contributor to the environmental effects of building materials. Likewise, the impact of annual cooling and heating energy demands has an equally prominent role to play. These demands need to be assessed and benchmarked in order that reduction targets can be set. Saudi Arabia presents its own unique context and local conditions, which creates a challenge when utilizing generic frameworks for assessing the environmental impact of domestic buildings. In meeting this aim, this paper presents a resilience and environmental sustainability assessment framework (RESAF) developed specifically for domestic buildings in Saudi Arabia. RESAF helps designers/builders to minimize the carbon footprint of the building fabric and reduce in-use energy demands of domestic buildings in Saudi Arabia. This paper shows how this framework can be used to reduce, by approximately 23%, the carbon impact from construction materials, primarily by substituting a portion of cement for pulverized fly ash (PFA) or ground granulated blast furnace slag (GGBS). A reduction of 19% in annual cooling and heating energy demand were additionally achieved throughout the building’s life, simply by increasing insulation and using triple-glazed windows. The importance of passing these alternative solutions through the resilience filter is highlighted, not least questioning whether they are really fit-for-purpose.

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Section: Part 1: Information and Details About Proposed House Buildinmentioning

confidence: 99%

Section: Public Acceptance Of Sustainable Solutionsmentioning

confidence: 99%

A Resilience and Environmentally Sustainable Assessment Framework (RESAF) for Domestic Building Materials in Saudi Arabia

2020

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“…The equations of the approximated straight lines shown in the figure demonstrate that the carbonation rate coefficient of specimens with 10% replacement is slightly lower, and that of specimens with 20% replacement is 8% higher, than the control specimens, both being nearly of the same level. It is pointed out that pozzolanic materials in place of part of cement generally reduces the carbonation resistance of concrete due to the lower quantity of Portland cement and calcium hydroxide consumption by pozzolanic reaction [17], however the reduced permeability might render blended cements counteracts the loss of buffering Ca(OH) 2 [1]. In the present tests, it is presumed that the effect of pore structure densification offsets the effect of CH consumption by pozzolanic reaction, when reaction begins at an early age.…”

Section: Series Iii: Basic Durability Properties (Vgp 1)mentioning

confidence: 99%

“…Ancient concrete used in the Pantheon in Rome contains volcanic ejecta, which is known as pozzolana. One popular technique to reduce CO 2 emissions stemming from concrete production and construction involves the use of these natural pozzolans as SCMs [1]. Volcanic activity is common in Japan.…”

Section: Introductionmentioning

confidence: 99%

Utilization of volcanic ejecta as a high-performance supplementary cementitious material by gravity classification and pulverization

Tomoyose

Noguchi²,

Sodeyama³

et al. 2018

RILEM Tech Lett

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The reaction of natural pozzolans is caused by volcanic glass composed of amorphous silicate; however, volcanic ejecta also contains crystal mineral, pumice, and sometimes weathered clay fraction in their natural conditions. By focusing on the differences of physical properties between these components, high-purity volcanic glass powder (VGP) was manufactured by dry gravity classification and pulverization. This paper reports the results of investigations to utilize pyroclastic flow deposits as a supplementary cementitious material (SCM). Through this method, the glass content of VGP increased to 88% with a mean particle size of 1 μm, when that of the raw material is about 60%. Chemical analysis indicated that VGP is principally composed of silica (about 72%) and alumina (about 13%). The performance of VGP as a SCM was evaluated by conducting tests on concrete mixtures, replacing 0% to 30% by weight of portland cement by VGP with a 20% to 60% water to cement ratio. VGP concrete showed better results of 7-and 28-day compressive strength compared to control concrete in all experiments. In particular, VGP demonstrated better flowability and strength development in concrete with a low water-binder ratio in comparison to silica fume.

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“…The quarry sites of scoria are limited to the use of sub-base road construction and are found a short distance of about 0.5 to 4.2 km from the nearby towns, such as Adama, Bishoftu, and Mojo, unlike natural or river sand. Hence, the use of this material as fine aggregate in concrete production helps to save energy and cost [27,28].…”

Section: Introductionmentioning

confidence: 99%

Suitability of Scoria as Fine Aggregate and Its Effect on the Properties of Concrete

et al. 2019

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The increase in the demand for concrete production for the development of infrastructures in developing countries like Ethiopia leads to the depletion of virgin aggregates and high cement demand, which imposes negative environmental impacts. In sustainable development, there is a need for construction materials to focus on the economy, efficient energy utilization, and environmental protections. One of the strategies in green concrete production is the use of locally available construction materials. Scoria is widely available around the central towns of Ethiopia, especially around the rift valley regions where huge construction activities are taking place. The aim of this paper is therefore to analyze the suitability of scoria as a fine aggregate for concrete production and its effect on the properties of concrete. A differing ratio of scoria was considered as a partial replacement of fine aggregate with river sand after analyzing its engineering properties, and its effect on the mechanical properties of concrete were examined. The test results on the engineering properties of scoria revealed that the material is suitable to be used as a fine aggregate in concrete production. The replacement of scoria with river sand also enhanced the mechanical strength of the concrete. Generally, the findings of the experimental study showed that scoria could replace river sand by up to 50% for conventional concrete production.

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Impact of Embodied Energy on materials/buildings with partial replacement of ordinary Portland Cement (OPC) by natural Pozzolanic Volcanic Ash

Cited by 88 publications

References 21 publications

A Resilience and Environmentally Sustainable Assessment Framework (RESAF) for Domestic Building Materials in Saudi Arabia

A Resilience and Environmentally Sustainable Assessment Framework (RESAF) for Domestic Building Materials in Saudi Arabia

Utilization of volcanic ejecta as a high-performance supplementary cementitious material by gravity classification and pulverization

Suitability of Scoria as Fine Aggregate and Its Effect on the Properties of Concrete

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