Properties and durability of concrete produced using CO2 as an accelerating admixture

被引：150

作者：

Monkman, Sean ^{[1
]}

MacDonald, Mark ^{[1
]}

Hooton, R. Doug ^{[2
]}

Sandberg, Paul ^{[3
]}

机构：

[1] CarbonCure Technol, 60 Trider Crescent, Dartmouth, NS B3B 1R6, Canada

[2] Univ Toronto, Dept Civil Engn, Toronto, ON M5S 1A4, Canada

[3] Calmetrix, POB 70, Arlington, MA 02476 USA

来源：

CEMENT & CONCRETE COMPOSITES | 2016年 / 74卷

关键词：

Concrete; Carbon dioxide; Admixtures; Durability; Industrial trial; Sustainability; CEMENT-BASED MATERIALS; CARBON-DIOXIDE; TRICALCIUM SILICATE; HYDRATION; NANO-CACO3;

D O I：

10.1016/j.cemconcomp.2016.10.007

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Carbon dioxide was investigated for use as a beneficial admixture to concrete as it was truck mixed. The reaction between the CO2 and the hydrating cement creates finely distributed calcium carbonate reaction products that thereby influence the subsequent hydration. Comparisons of the fresh, hardened and durability properties were made between a reference concrete batch, a batch that contained a conventional accelerating admixture, and three batches subjected to a carbon dioxide addition. The optimum dose of carbon dioxide was found to reduce the time to initial set by 40% and increase the one and three day compressive strengths by 14% and 10% respectively. In comparison to the CO2 batch, the conventional accelerator provided greater reductions in set time but lower early strength. Concrete durability test results indicated that the carbon dioxide process did not compromise the expected durability performance of the treated concrete. Carbon dioxide is a viable admixture to improve concrete performance. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：218 / 224

页数：7

共 21 条

[1]

[Anonymous], 2009, Cement technology roadmap: carbon emissions reductions up to 2050., DOI DOI 10.1787/9789264088061-EN

[2] Cement and carbon emissions [J].

Barcelo, Laurent ;

Kline, John ;

Walenta, Gunther ;

Gartner, Ellis .

MATERIALS AND STRUCTURES, 2014, 47 (06) :1055-1065

[3] Relating Compressive Strength to Heat Release in Mortars [J].

Bentz, Dale P. ;

Barrett, Tim ;

De la Varga, Igor ;

Weiss, W. Jason .

ADVANCES IN CIVIL ENGINEERING MATERIALS, 2012, 1 (01)

[4] Fine limestone additions to regulate setting in high volume fly ash mixtures [J].

Bentz, Dale P. ;

Sato, Taijiro ;

de la Varga, Igor ;

Weiss, W. Jason .

CEMENT & CONCRETE COMPOSITES, 2012, 34 (01) :11-17

[5]

BERGER RL, 1972, NATURE-PHYS SCI, V240, P16, DOI 10.1038/physci240016a0

[6]

CHENGJU G, 1989, ACI MATER J, V86, P341

[7] Sustainable development and climate change initiatives [J].

Damtoft, J. S. ;

Lukasik, J. ;

Herfort, D. ;

Sorrentino, D. ;

Gartner, E. M. .

CEMENT AND CONCRETE RESEARCH, 2008, 38 (02) :115-127

[8] Characterization and Performance Prediction of Cement-Based Materials Using a Simple Isothermal Calorimeter [J].

Ge, Zhi ;

Wang, Kejin ;

Sandberg, Paul J. ;

Ruiz, Jorge M. .

JOURNAL OF ADVANCED CONCRETE TECHNOLOGY, 2009, 7 (03) :355-366

[9] REACTION OF BETA-DICALCIUM SILICATE AND TRICALCIUM SILICATE WITH CARBON-DIOXIDE AND WATER-VAPOR [J].

GOODBRAKE, CJ ;

YOUNG, JF ;

BERGER, RL .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1979, 62 (3-4) :168-171

[10] Change in reaction kinetics of a Portland cement caused by a superplasticizer - Calculation of heat flow curves from XRD data [J].

Jansen, D. ;

Neubauer, J. ;

Goetz-Neunhoeffer, F. ;

Haerzschel, R. ;

Hergeth, W. -D. .

CEMENT AND CONCRETE RESEARCH, 2012, 42 (02) :327-332

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