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| 1 | Comparative carbon emission assessments of recycled and natural aggregate concrete: Environmental influence of cement content显示文摘This work examines the environmental and geochemical impact of recycled aggregate concrete production with properties representative for structural applications.The environmental influence of cement content,aggregate production,transportation,and waste landfilling is analysed by undertaking a life cycle assessment and considering a life cycle inventory largely specific for the region.To obtain a detailed insight into the optimum life cycle parameters,a sensitivity study is carried out in which supplementary cementitious materials,different values of natural-to-recycled aggregate content ratio and case-specific transportation distances were considered.The results show that carbon emissions were between 323 and 332 kgCO_(2)e per cubic metre of cement only natural aggregate concrete.These values can be reduced by up to 17%by replacing 25%of the cement with fly ash.By contrast,carbon emissions can increase when natural coarse aggregates are replaced by recycled aggregates in proportions of 50%and 100%,and transportation is not included in analysis.However,the concrete with 50%recycled aggregate presented lower increase,only 0.3%and 3.4%for normal and high strength concrete,respectively.In some cases,the relative contribution of transportation to the total carbon emissions increased when cement was replaced by fly ash in proportions of 25%,and case-specific transportation distances were considered.In absolute values,the concrete mixes with 100%recycled aggregates and 25%fly ash had lower carbon emissions than concrete with cement and natural aggregates only.Higher environmental benefits can be obtained when the transportation distances of fly ash are relatively short(15–25 km)and the cement replacement by fly ash is equal or higher than 25%,considering that the mechanical properties are adequate for practical application.The observations from this paper show that recycled aggregate concrete with strength characteristics representative for structural members can have lower carbon emissions than conventional concrete,recommending them as an alternative to achieving global sustainability standards in construction. | Marian Sabǎu Dan V.Bompa Luis F.O.Silva | 2021 | Geoscience Frontiers2021，12，6： | 2 |
| 2 | The vagus nerve and the nicotinic anti-inflammatory pathway 显示文摘 | Luis U | 2005 | Nature Reviews Drug Discovery2005，4，8： | 1 |
| 3 | Detection of methamidophos in vegetables using a photometric flow injection system显示文摘 | Lui J Gunther A Bilitewski U | 1997 | Environmental Monitoring and Assessment1997，44，： | 1 |
| 4 | Operational oceanography system applied to the prestige oil-spillage event显示文摘 | MANUEL G LUIS F ADOLFO U | 2008 | Journal of Marine System2008，72，14： | 1 |
| 5 | Tunneling and op- ileal control in quantum ring molecules 显示文摘 | LUIS D S JOSE M V SERGIO E U | 2007 | Physical Re-view B2007，，76： | 1 |
| 6 | Simulation and thermoeconomic analysis of different configurations of gas turbine (GT)-based dual-purpose power and desalination plants (DPPDP) and hybrid plants (HP)显示文摘 | THIBAUT R JAVIER U LUIS S | 2007 | Energy2007，32，： | 1 |
| 7 | Clinical and Genetic Heterogeneity in Mexican Patients With Ulcerative Colitis显示文摘 | JesfJs K Y Luis F U Gilberto Vargas AlarcOn | 2003 | Human hninunology2003，64，1： | 1 |
| 8 | Are automobiles the next commodity?显示文摘 | Lance Ealey & Luis Troyano-Berm u dez | 1996 | The Mckinsey Quarterly1996，，4： | 1 |
| 9 | Inhibition effects of nitrogen compounds on the hydrodesulfurization of dibenzothiophene显示文摘 | LAREDO G C de los REYES J A LUIS CANO D J JES(U)S CASTILLO M J | 2001 | Appl Catal A2001，207，12： | 1 |
| 10 | HMGB-1 as a therapeutic target for infectious and inflammatory disorders显示文摘 | LIN L M WILLIAM R P LUIS U | 2006 | Shock2006，25，1： | 1 |
| 11 | Collaboration to Data Curation: Harnessing Institutional Expertise 显示文摘 | Stuart M Luis M U | 2010 | New Review of Academic Librarianship2010，，16： | 1 |
| 12 | Relationship quality, community promotion and brand loyalty in virtual communities: Evidence from free software communities显示文摘 | Luis V. Casaló Carlos Flavián Miguel Guinalíu | 2010 | International Journal of Information Management2010，，： | 1 |
| 13 | Loss of c-Met accelerates de- velopment of liver fibrosis m response to CC1(4) exposure through deregulation of multiple molecular pathways 显示文摘 | Jens U Marquardt D Luis SE | 2012 | Biochimica Et Bio- physica Aeta2012，1822，6： | 1 |
| 14 | The mechanism of zeolite Y destruction by steam in the presence of vanadium 显示文摘 | Trujilo C A Uribe U N Knops-Gerrits P P Luis Alfredo O A Jacobs P A | 1997 | Journal of Catalysis1997，168，1： | 1 |
| 15 | The vagus nerve and the nicotinic anti-inflammatory pathway显示文摘 | LUIS U | 2005 | Nature Reviews Drug Discovery2005，4，8： | 1 |
| 16 | The role of perceived usability, reputation, satisfaction and consumer familiarity on the website loyalty formation process显示文摘 | Luis Casaló Carlos Flavián Miguel Guinalíu | 2007 | Computers in Human Behavior2007，，2： | 1 |
| 17 | The Role of Perceived Usability, Reputation, Satisfaction and Consumer Fa- miliarity on the Website Loyalty Formation Process显示文摘 | Luis Casal6 Carlos Flavidn Miguel Guinall u | 2008 | Comput-ers in Human Behavior2008，24，2： | 1 |
| 18 | Operational oceanography system applied to the prestige oil-spillage event显示文摘 | MANUEL G LUIS F ADOLFO U | 2008 | Journal of Marine Systems2008，72，14： | 1 |
| 19 | Adaptation into Spanish of the Clinically Useful Depression Outcome Scale(CUDOS) for assessing major depressive disorder from the patient's perspective 显示文摘 | Luis Au u era-Ortiz Carmen Mont e n Jes u s Cuervo | 2013 | Actas Esp Psiquiatr2013，41，5： | 1 |
| 20 | Inhibition of transforming growth factor-β/SMAD signaling by the interferon-γ/STAT pathway 显示文摘 | LUIS U JACQUELINE D JOAN M | 1999 | Nature1999，397，： | 1 |
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