The properties of the carbonated brick made of steel slag-slaked lime mixture

Abstract

The properties of the carbonated brick made of steel slag-slaked lime mixture such as strength, drying shrinkage, water absorption and soundness were mainly investigated. The experimental results indicate that, after carbonation, the strength of the brick increases, its drying shrinkage reduces, and its soundness becomes eligible. The optimal slaked lime/steel slag (SL/SS) ratio for the carbonated brick is 0.2 and the as-prepared brick meets the requirements of the Chinese standard for MU20-grade building bricks, additionally, it also demonstrates prominent environmental benefits. The XRD and pore structure analyses indicate that the excellent properties of this carbonated brick are attributed to the formation of carbonate crystals and the dense structure due to the carbonation.

Keywords

building brick / steel slag / lime / property / chemical carbon sequestration

References

[1] National Bureau of Statistics of China. China Statistical Yearbook 2011-Output of Industrial Products [M], 2012 Beijing: China Statistics Press

[2] Rynikiewicz C The Climate Change Challenge and Transitions for Radical Changes in the European Steel Industry [J]. J. Clean. Prod., 2008, 16(7): 781-789.

[3] Chemical Industry Vision 2020 Technology Partnership. Carbon Dioxide Separation Technology: R&D Needs for the Chemical and Petrochemical Industries [EB/OL], 2007

[4] Proctor DM, Fehling KA, Shay EC, . Physical and Chemical Properties of Blast Furnace, Basic Oxygen Furnace, and Electric Arc Furnace Steel Industry Slags [J]. Envion. Sci. Technol., 2000, 34(8): 1576-1682.

[5] Li JX, Yu QJ, Wei JX, . Structural Properties and Hydration Kinetics of Modified Steel Slag [J]. Cement. Concrete. Res., 2011, 41(3): 324-329.

[6] Shi C, Qian J High Performance Cementing Materials From Industrial Slags-a Review [J]. Resour. Conserv. Recycl., 2000, 29(3): 195-207.

[7] Huijgen WJJ, Witkamp GJ, Comans RNJ Mineral CO₂ Sequestration by Steel Slag Carbonation [J]. Environ. Science. Technol., 2005, 39(24): 9 676-9 682.

[8] Lekakh SN, Rawlins CH, Robertson VL, . Kinetics of Aqueous Leaching and Carbonization of Steelmaking Slag [J]. Metall. Mater. Trans. B., 2008, 39(1): 125-134.

[9] Bonenfant D, Kharoune L, Sauvé S, . CO₂ Sequestration Potential of Steel Slags at Ambient Pressure and Temperature [J]. Ind. Eng. Chem. Res., 2008, 47(20): 7 610-7 616.

[10] Kodama S, Nishimoto T, Yamamoto N, . Development of a New pH-swing CO₂ Mineralization Process with a Recyclable Reaction Solution [J]. Energy, 2008, 33(5): 776-784.

[11] Ministry of IndustryInformation Technology of China. 12^th Fiveyears Development Program for Brick and Tile Industry [J]. Brick & Tile World, 2011, 10: 1-4.

[12] State Council of China. Several Opinions on the Modernization of the Housing Industry and the Quality of the House [J]. Shanghai Building Materials, 1999, 5: 3-6.

[13] Wu HZ, Chang J, Pan ZZ, . Carbonate Steelmaking Slag to Manufacture Building Materials [J]. Advanced Materials Research, 2009, 79–82: 1943-1946.

[14] Shi J, Hu S Cementitious Properties of Ladle Slag Fines under Autoclave Curing Conditions [J]. Cement. Concrete. Res., 2003, 33(11): 1851-1856.

[15] General Administration of Quality Supervision InspectionQuarantine of the People’s Republic of China Standardization Administration of the People’s Republic of China. GB/T2542-2003 Test Methods for Wall Bricks [S], 2003 Beijing: China Standard Press

[16] General Administration of Quality Supervision, InspectionQuarantine of the People’s Republic of China Standardization Administration of the People’s Republic of China. GB/T750-1992 Soundness Test Methods for Portland Cement [S], 1992 Beijing: China Standard Press

[17] National DevelopmentReform Commission. JC/T422-2007, Nonfired Rubbish Gangue Brick [S], 2007 Beijing: China Building Industry Press

[18] General Administration of Quality Supervision InspectionQuarantine of the People’s Republic of China Standardization Administration of the People’s Republic of China. GB/T21144-2007 Solid Concrete Brick [S], 2007 Beijing: China Standard Press

[19] General Administration of Quality Supervision InspectionQuarantine of the People’s Republic of China Standardization Administration of the People’s Republic of China. GB5101-2003 Fired Common Bricks [S], 2003 Beijing: China Standard Press

[20] Murphy JN, Meadowcroft TR, Barr PV Enhancement of the Cementitious Properties of Steelmaking Slag [J]. Can. Metall. Quart., 1997, 36(17): 312-331.

[21] Monshi A, Asgarani MK Producing Portland Cement From Iron and Steel Slags and Limestone [J]. Cement. Concrete. Res., 1999, 29(9): 1373-1377.

[22] Dean JA Lange’s Handbook of Chemistry — 13 ^th ed[M], 1999 Beijing: Science Press

[23] Tsakiridis PE, Papadimitriou GD, Tsivilis S, . Utilization of Steel Slag for Portland Cement Clinker Production [J]. J. Hazard. Mater., 2008, 152(2): 805-811.

[24] Wang Q, Yan P, Mi G Effect of Blended Steel Slag-GBFS Mineral Admixture on Hydration and Strength of Cement [J]. Constr. Build. Mater., 2012, 35: 8-14.