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عنوان فارسی مقاله:
خواص و دوام بتن تولید شده با استفاده CO2 به عنوان یک ترکیب شتاب دادن
عنوان انگلیسی مقاله:
Properties and durability of concrete produced using CO2 as an accelerating admixture
سال انتشار : 2016
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مقدمه انگلیسی مقاله:
1. Introduction
Carbon dioxide emissions are recognized as a significant issue relating to cement production and the use of concrete as a building material. It is estimated that 5% of the world's annual CO2 emissions are attributable to cement production [1]. The industry has previously recognized a number of approaches to reduce the emissions intensity of the cement produced and used in concrete with the industry goal to reduce emissions 50% below 2006 levels by 2050 [2]. It is clear, however, that practical limits on the impacts of these measures mean that meeting the goal will be difficult [3]. Innovative approaches are sought and are likely to be a part of a portfolio strategy. The most significant improvements in production effi- ciency and cement substitution with supplementary cementitious materials are already known and available. Future emissions improvements will likely be incremental. Therefore, innovative approaches are sought that can be a part of a portfolio strategy. One approach that many be relevant is the beneficial use of carbon dioxide to make concrete products. The mechanism of carbonation of freshly hydrating cement was systematically studied in the 1970s at the University of Illinois [4]. The main calcium silicate phases in cement were shown to react with carbon dioxide, in the presence of water, to form calcium carbonate and calcium silicate hydrate gel as shown in Equations (1) and (2):
کلمات کلیدی:
Environmental impact of concrete - Wikipedia https://en.wikipedia.org/wiki/Environmental_impact_of_concrete The environmental impact of concrete, its manufacture and applications, is complex. ... The carbon dioxide CO2 produced for the manufacture of one tonne of .... concrete: its reduced strength relative to conventional concrete limits use to ... Carbon dioxide emissions and ... · Design improvements · Carbon Concrete [PDF]Increased Durability of Concrete Made with Fine Recycled Concrete ... www.mdpi.com/1996-1944/9/2/98/pdf by F Cartuxo - 2016 - Cited by 3 - Related articles Feb 8, 2016 - improves the durability properties of concrete made with FRCA, ... Aggressive agents (carbon dioxide and chloride ions) move through the ... [PDF]Analysis of CO2 Emission Characteristics of Concrete Used at ... - MDPI www.mdpi.com/2071-1050/8/4/348/pdf by TH Kim - 2016 - Cited by 2 - Related articles Apr 8, 2016 - of CO2 emission from concrete production to site procurement and a ... life cycle CO2 emission using the compressive strength of concrete. The. [PDF]Carbon Curing of concrete – effect on hydration - Thomas Betong thomasbetong.se/images/articles-images/.../Master-thesis-proposal_Carbon-Curing.pdf However, carbon curing (with CO2) have for a long time been known to ... Hooton, P. Sandberg, Properties and durability of concrete produced using CO2 as. [PDF]Concrete CO2 Fact Sheet - NRMCA.com https://www.nrmca.org/.../CONCRETE%20CO2%20FACT%20SHEET%20FEB%202... and durability, among other benefits. Concrete is used in ... As with any building product, production of concrete and its ingredients ... CO2. The amount of CO2 produced during manufacturing and the net impact of using concrete as a building ... Using Carbon Dioxide as a Beneficial Admixture in Ready-Mixed ... downloads.calmetrix.com/Downloads/Monkman-MacDonald-Hooton-NRMCA-2015.pdf by S Monkman - Related articles strength increase is attributable to the reaction of carbon dioxide with the cement ... integrated into concrete production reacts CO2 with freshly hydrating cement, ... Searches related to durability of concrete produced using CO2 co2 emissions from cement production environmental impact of concrete concrete co2 emissions per tonne how does concrete affect our environment environmental impact of concrete production environmental impact of cement production pdf co2 absorbing concrete cement factory pollution
