CO2 emission reduction by reuse of building material waste in the Japanese cement industry

Oh, Da-Young; Noguchi, Takafumi; Kitagaki, Ryoma; Park, Won-Jun

doi:10.1016/j.rser.2014.07.036

Cited by 139 publications

(57 citation statements)

References 24 publications

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“…On the other hand, efforts have been dedicated to designing lowcarbon cement. Incorporation of industrial wastes, such as, waste glasses (Shi and Zheng, 2007), recycled concrete waste (Gastaldi et al, 2015;Oh et al, 2014), oil-based mud (Abdul-Wahab et al, 2016;Bernardo et al, 2007), arc furnace steel slag (Bernardo et al, 2007;Iacobescu et al, 2011) and contaminated soil (Navia et al, 2006) into the clinker process, are found to be feasible to reduce the CO 2 emissions of cement manufacturing.…”

Section: Introductionmentioning

confidence: 99%

Modeling the dynamic mechanism between cement CO2 emissions and clinker quality to realize low-carbon cement

Cao

Shen

Zhao

et al. 2016

Resources, Conservation and Recycling

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a b s t r a c tTo devise low-carbon cement clinker product, in-depth knowledge about the variation mechanism of cement clinker CO 2 emissions is the prerequisite. The determinants of cement clinker CO 2 emissions in Chinese cement industry have been inquired by several researches recently. However, the impacts and abatement effect of clinker quality on cement clinker CO 2 emissions have not been identified yet. In technological sense, there lacks an integrated quantitative model that can elucidate the dynamic mechanism between cement clinker CO 2 emissions and clinker quality. To fill this gap, this paper devises a CO 2 emission accounting framework integrated with optimization model to explore the dynamic mechanism between cement clinker CO 2 emissions and clinker quality. Based on survey data of 2 typical cement clinker production lines in China, the accounting framework is validated with measured data. Through numerical simulation within this framework, a set of sensitivity analysis is conducted. The results indicate that if the target KH (lime saturation ratio) of both production lines climb from −5% to +5%, the process CO 2 emission factor will give rise to an increase of about 16.4 and 14.8 kg CO 2 /t clinker, respectively. With the same variation, the fuel CO 2 emission factors of two production lines will gain 17.2 and 13.7 kg CO 2 /t clinker, respectively. Obviously, controlled decrease of clinker quality can reduce CO 2 emission of clinker manufacturing. The results of sensitivity analysis are robust and highlight the remarkable role of clinker quality in both process and fuel emissions. Besides, the integrated framework can provide in-depth investigation into the dynamic mechanism between CO 2 emissions and the other determinants. Using this framework, cement plants or industry can develop optimal clinker quality standards on a quantitative basis to achieve low-carbon clinker.

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Section: Introductionmentioning

confidence: 99%

Modeling the dynamic mechanism between cement CO2 emissions and clinker quality to realize low-carbon cement

Cao

Shen

Zhao

et al. 2016

Resources, Conservation and Recycling

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“…As the consumption of diesel oil increased, as a result, the emission of CFC, HCFC and Halon, which have an effect on ODP, rose considerably [40]. As shown in Figure 6a,b, W-BFS was greater than general BFS by 50% and 10% in GWP and POCP respectively because energy consumption during calcination was higher in the production of W-BFS.…”

Section: Assessment Resultsmentioning

confidence: 93%

The Environmental Impact and Cost Analysis of Concrete Mixing Blast Furnace Slag Containing Titanium Gypsum and Sludge in South Korea

et al. 2016

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This study assessed the environmental effects and cost of the Industrial Waste addictive Blast Furnace Slag (W-BFS) using Life Cycle Assessment (LCA) and compared it to general BFS. The environmental impacts of W-BFS were as follows: 1.12ˆ10´1 kg-CO 2 eq/kg, 3.18ˆ10´5 kg-Ethylene eq/kg, 4.79ˆ10´4 kg-SO 2 eq/kg, 7.15ˆ10´4 kg-PO 4 3´e q/kg, 7.15ˆ10´4 kg-CFC 11 eq/kg and 3.94ˆ10´3 kg-Antimony eq/kg. Among the environmental impact category, GWP and AP were 9.28ˆ10´2 kg-CO 2 eq/kg and 3.33ˆ10´4 kg-SO 2 eq/kg at a raw material stage, accounting for 80% and 70% of total environmental impact respectively. In EP, POCP and ADP, in addition, raw material

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“…Iran ranked fifth among cement producing countries in the world from 2003 to 2012. Annual cement production in Iran was 30.5, 32.6, 40.0, 56.3, 61.0 and 65.0 million tons is 2003, 2005, 2007, 2009, 2011 and 2012 respectively [21]. Table 1 represents average quantity of environmental indicators i.e.…”

Section: Introductionmentioning

confidence: 99%

“…This scheme dwindled CWG up to 23% in Hong Kong. To reduce CO 2 emission Oh et al [21] proposed using demolished inorganic BMs instead of limestone in cement production. Ostad-Ahmad-Ghorabi and Attari [22] prioritized 15 indicators using Technique for Order-Preference by Similarity to Ideal Solution (TOPSIS, a Multi-Criteria Decision Making model that can be selected for the purpose of prioritizing the indicators based on the quantities and relative importances achieved) method and developed strategies to advance Iran cement production industry environmental evaluation.…”

Section: Introductionmentioning

confidence: 99%

Applying Materials Waste Quantification to Cement Waste Reduction in Tehran’s Residential Buildings: A Case Study

2017

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Abstract:Purpose of this research is twofold. Study's first part focuses on developing quantitative wastage models for rebar, concrete, brick and cement, as major bulk traditional building materials, used in Tehran residential buildings. Primary results indicate that multiple linear regression is an apt tool to model studied variables' effects on materials wastage. In every developed wastage model, subtractive or accumulative effect of each studied variable is recognized by its coefficient value and sign. Developed models resulted in adjusted R 2 values of 0.907, 0.875, 0.920 and 0.790 respectively for rebar, cement, brick and concrete waste. Cement, with average wastage of 8.57% by weight, is identified as the most wasted material verified by the case study.In study's second part, previously developed models as well as project management experts' opinions were combined to structure a cement waste reduction guideline for traditional building construction which is common in Tehran, Iran. With this purpose in mind, for projects' initiating phase, choosing lump-sum contract instead of cost-plus contract is suggested. Moreover a financial incentive reward scheme, with its economic viability and environment friendliness, has been tested with positive results and hence is proposed for construction phase. Applicability of proposed scheme is verified through a case study.

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CO2 emission reduction by reuse of building material waste in the Japanese cement industry

Cited by 139 publications

References 24 publications

Modeling the dynamic mechanism between cement CO2 emissions and clinker quality to realize low-carbon cement

Modeling the dynamic mechanism between cement CO2 emissions and clinker quality to realize low-carbon cement

The Environmental Impact and Cost Analysis of Concrete Mixing Blast Furnace Slag Containing Titanium Gypsum and Sludge in South Korea

Applying Materials Waste Quantification to Cement Waste Reduction in Tehran’s Residential Buildings: A Case Study

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