Sustainable development and physical infrastructure materials

Heard, Robert; Hendrickson, Chris; McMichael, Francis C.

doi:10.1557/mrs.2012.7

Cited by 13 publications

(7 citation statements)

References 14 publications

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“…The results of this study are in line with research by (Heard et al, 2012), concluding that PDN has no effect on ROA. This can be explained that if management is careful in the sense that the source of foreign exchange funds is used to finance foreign exchange transactions or to minimize the risk can be overcome by hedging.…”

Section: Pdnsupporting

confidence: 91%

“…The influence of the exchange rate on RSHM was examined by (Heard et al, 2012), stating that the exchange rate affected RSHM. (Ngoc et al, 2009) in the period of 1986-2006 when the liberalization of the forex market economy was implemented, showed that changes in currency exchange rates negatively affected the profitability of banking companies.…”

Section: The Influence Of Kurs On Rshmmentioning

confidence: 99%

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Fundamental Role of Macro and Microeconomics to Profitability and the Implications on Stock Return: Evidence From Banking Companies on the Indonesia Stock Exchange

Hakim

Martono²

2019

IJEFI

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This study is intended to analyze the fundamental role of Macro and Micro on profitability which has implications for Stock Return in the banking industry on the Indonesia stock exchange. Macro and micro fundamentals in this study use gross domestic product, inflation (INF), rupiah exchange rate against the US Dollar (exchange rate), CAR, non-performing loans (NPL), BOPO, LDR. The results of partial testing of independent variables that significantly influence (ROA) in the first research model are BOPO, LDR, PDB, KURS, INF, other variables are not significant. Tests together show that the independent variables significantly influence ROA. Of the 24 banking companies that became the study sample, the banking companies that had the greatest sensitivity influence were the SDRA bank (Bank Himpunan Saudara 1906, Tbk) and the banking company that had the smallest sensitivity effect was the BABP bank (Bank Bumiputera Indonesia, Tbk). Based on the formed R2, the independent variable is able to explain changes in the rise and fall of ROA of 24.05%. The results of the second model of the study showed that the NPL, INF and ROA variables significantly affected the stock returns of banking companies where the most dominant ROA variable and in testing together resulted that the variables of all independent variables significantly affected the stock returns of banking companies listed on the Exchange Indonesian effect. Of the 24 banking companies that became the study sample, the banking company that had the greatest sensitivity influence was the BABP bank (Bank Bumiputera Indonesia, Tbk). While the banking company that has the smallest sensitivity effect is the BNGA bank (Bank CIMB Niaga, Tbk). Based on the formed R2, the independent variable is able to explain changes in the rise and fall of stock returns by 53.35%.

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Section: Pdnsupporting

confidence: 91%

Section: The Influence Of Kurs On Rshmmentioning

confidence: 99%

Fundamental Role of Macro and Microeconomics to Profitability and the Implications on Stock Return: Evidence From Banking Companies on the Indonesia Stock Exchange

Hakim

Martono²

2019

IJEFI

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“…This tremendous demand for resources has led to a growing concern about potential contributions to regional resource scarcity for concrete production 32 . In the United States from 1900 to 2000, a period of significant infrastructure development in the nation, the demand for crushed stone, sand, and gravel grew from being ~60% greater to being ~290% times greater than the sum of all other raw material flows used by human activities in that same time period 33 . Although sand and gravel are widely abundant on Earth 34 , they are usually not transported over long distances due to the economic cost of transporting such heavy materials 35,36 .…”

Section: Regional Resource Scarcitymentioning

confidence: 99%

Environmental impacts and decarbonization strategies in the cement and concrete industries

Habert

Miller

John

et al. 2020

Nat Rev Earth Environ

729

269

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The use of concrete is under scrutiny as it appears as one of the few human activities where the transition toward a post-carbon society is not possible unless large investments in risky carbon capture and storage are made. With current urbanization, it is also a sector that is expected to continuously grow, leading to increased resource consumption and emissions. In this review, we aim to shed light on the available solutions that can be implemented in the short and long term to reduce greenhouse gas emissions. Rather than waiting for disruptive technologies that could transform a very slow moving and risk-averse construction sector, this review focuses on the small improvements that every stakeholder involved along the value chain of concrete production and use can achieve. We stress how significant the combined effect of these marginal gains can be. By balancing societal needs, environmental requirements, and technical feasibility, the intention of this review is to show credible pathways for a transition to sustainable use of concrete. Key points• Cement usage is so massive, more than 4 billion tonnes per year worldwide, that large-scale replacement by other materials within the next decade is not possible.• Environmental impact of cement and concrete is low per unit of material, but the amount used makes the impact of the sector highly significant.• Reductions in CO 2 emissions are possible through successive improvement all along the cement and concrete value chain: less clinker in cement, less cement in concrete, less concrete in structures, and less replacement of structures.• By engaging all stakeholders of the construction sector, immediate savings of the order of 50% can be reached without heavy investment in new industrial infrastructure or modification of standards.• Research and development need urgently to be conducted for post-2050 construction to meet future emissions reduction targets. Alternative cement and faster carbonation of concrete should be explored.

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“…This is deemed by and large because of the concrete production (Mora, 2007). Concrete is the most commonly used building material in infrastructure and building projects (Heard et al , 2012). Annually, over 2.5 tons of concrete is used on average per person in a year and is projected to increase (Lippiatt and Ahmad, 2004).…”

Section: Introductionmentioning

confidence: 99%

“…As an example for recycling, concrete debris can be diverted from landfills to produce aggregates after being crushed, graded and washed (McIntyre et al , 2009; Poon et al , 2004). Incorporation of materials such as slag, fly ash and pozzolans from the waste streams of other industries in concrete production, either in part or in whole, can also considerably reduce waste generation and energy consumption (Heard et al , 2012). Another strategy involves utilizing cementitious materials derived from biological sources, such as microorganisms and plants to manufacture bioconcrete.…”

Section: Introductionmentioning

confidence: 99%

Comparative process-based life-cycle assessment of bioconcrete and conventional concrete

Shahandashti

2017

JEDT

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Purpose Bioconcrete is widely believed to be environmentally beneficial over conventional concrete. However, the process of bioconcrete production involves several steps, such as waste recovery and treatment, that potentially present significant environmental impacts. Existing life-cycle assessments of bioconcrete are limited in the inventory and impact analysis; therefore, they do not consider all the steps involved in concrete production and the corresponding impacts. The purpose of this study is to extensively study the cradle-to-gate environmental impacts of all the production stages of two most common bioconcrete types (i.e. sludge-based bioconcrete and cement kiln dust-rice husk ash (CKD-RHA) bioconcrete) as opposed to conventional concrete. Design/methodology/approach A cradle-to-gate life-cycle assessment process model is implemented to systematically analyze and quantify the resources consumed and the environmental impacts caused by the production of bioconcrete as opposed to the production of conventional concrete. The impacts analyzed in this assessment include global warming potential, ozone depletion potential, eutrophication, acidification, ecotoxicity, smog, fossil fuel use, human toxicity, particulate air and water consumption. Findings The results indicated that sludge-based bioconcrete had higher levels of global warming potential, eutrophication, acidification, ecotoxicity, fossil fuel use, human toxicity and particulate air than both conventional concrete and CKD-RHA bioconcrete. Originality/value The contribution of this study to the state of knowledge is that it sheds light on the hidden impacts of bioconcrete. The contribution to the state of practice is that the results of this study inform the bioconcrete production designers about the production processes with the highest impact.

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Sustainable development and physical infrastructure materials

Abstract: Abstract

Cited by 13 publications

References 14 publications

Fundamental Role of Macro and Microeconomics to Profitability and the Implications on Stock Return: Evidence From Banking Companies on the Indonesia Stock Exchange

Fundamental Role of Macro and Microeconomics to Profitability and the Implications on Stock Return: Evidence From Banking Companies on the Indonesia Stock Exchange

Environmental impacts and decarbonization strategies in the cement and concrete industries

Comparative process-based life-cycle assessment of bioconcrete and conventional concrete

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