Rheological properties and hydration behavior of portland cement mortars containing calcined red mud

Red mud (RM) is a solid waste derived from processing bauxite ore to produce alumina and is considered a hazardous waste due to its high pH. This paper describes the use of untreated mud and after calcination at distinct temperatures (450, 650, and 1000 °C) to attempt to improve its reactivity in cement mortars. In the formulations, portland cement was replaced with up to 30 wt% red mud, and the addition of the red mud changed the hydration process, setting time, and workability. The temperature of hydration increased as more RM was added, particularly when calcined in the interval of 450-650 °C. In these conditions, the hydration process was accelerated, and the workability decreased. These findings indicate that the presence of red mud significantly altered important properties of portland cement.

[1]  N. Chandra,et al.  A Novel Process for Making Radiopaque Materials Using Bauxite-Red Mud , 2007 .

[2]  B. Rangan,et al.  DEVELOPMENT AND PROPERTIES OF LOW-CALCIUM FLY ASH-BASED GEOPOLYMER CONCRETE , 2005 .

[3]  D. J. Cook,et al.  Rice husk ash-lime-cement mixes for use in masonry units , 1977 .

[4]  P. K. Mehta,et al.  Concrete: Microstructure, Properties, and Materials , 2005 .

[5]  N. Yalçın,et al.  Utilization of bauxite waste in ceramic glazes , 2000 .

[6]  André Nonat,et al.  Electrokinetic Properties which Control the Coagulation of Silicate Cement Suspensions during Early Age Hydration , 1998 .

[7]  Taehyo Park,et al.  Rheological Properties of Cementitious Materials Containing Mineral Admixtures , 2005 .

[8]  Maneesh Singh,et al.  PREPARATION OF IRON RICH CEMENTS USING RED MUD , 1997 .

[9]  Rachid Bennacer,et al.  The mini-conical slump flow test: Analysis and numerical study , 2010 .

[10]  Vincenzo M. Sglavo,et al.  Bauxite ‘red mud’ in the ceramic industry. Part 2: production of clay-based ceramics , 2000 .

[11]  V. P. Della,et al.  Heteromorphic Hematite Pigments Obtained from Steel Scrap and Encapsulated in Amorphous Silica for Porcelainized Stoneware , 2010 .

[12]  Erick Ringot,et al.  Mineral admixtures in mortars Effect of inert materials on short-term hydration , 2003 .

[13]  Maneesh Singh,et al.  Preparation of special cements from red mud , 1996 .

[14]  Jon Elvar Wallevik,et al.  Relationship between the Bingham parameters and slump , 2006 .

[15]  João A. Labrincha,et al.  Potential use of natural red mud as pozzolan for Portland cement , 2011 .

[16]  I. Odler.  Special Inorganic Cements , 2000 .

[17]  L Y Li,et al.  A study of iron mineral transformation to reduce red mud tailings. , 2001, Waste management.

[18]  P. Hewlett,et al.  Lea's chemistry of cement and concrete , 2001 .

[19]  J. Labrincha,et al.  Effect of red mud addition on the rheological behaviour and on hardened state characteristics of cement mortars , 2011 .

[20]  S. Amritphale,et al.  Utilization of red mud, fly ash for manufacturing bricks with pyrophyllite , 1987 .

[21]  K. Jagadish,et al.  Pozzolanic properties of rice husk ash, burnt clay and red mud , 1988 .

[22]  Lours Moyn.  OF THE NEPHELINE AND CORUNDUM ROCKS OF SOUTHEASTERN ONTARIO , 2007 .

[23]  Tarun R. Naik,et al.  Sustainability of Concrete Construction , 2008 .

[24]  Yujiang Wang,et al.  The use of thermodynamic analysis in assessing alkali contribution by alkaline minerals in concrete , 2008 .

[25]  Shyam R. Asolekar,et al.  Coal combustion residues—environmental implications and recycling potentials , 2005 .

[26]  Karen L. Scrivener,et al.  Innovation in use and research on cementitious material , 2008 .

[27]  P. Tsakiridis,et al.  Red mud addition in the raw meal for the production of Portland cement clinker. , 2004, Journal of hazardous materials.

[28]  G. C. R. Garcia,et al.  Efeito do tempo de cura na rigidez de argamassas produzidas com cimento Portland , 2011 .

[29]  F. Lea.  The chemistry of cement and concrete , 1970 .

[30]  Hamlin M. Jennings,et al.  Pore solution chemistry of alkali-activated ground granulated blast-furnace slag , 1999 .

[31]  Phillip Frank Gower Banfill,et al.  RHEOLOGICAL METHODS FOR ASSESSING THE FLOW PROPERTIES OF MORTAR AND RELATED MATERIALS , 1994 .

[32]  Na Zhang,et al.  Structural investigation relating to the cementitious activity of bauxite residue — Red mud , 2011 .

[33]  R. Boumaza,et al.  Development of a pozzolanic pigment from red mud , 1997 .

[34]  Phillip Frank Gower Banfill,et al.  THE RHEOLOGY OF FRESH CEMENT AND CONCRETE - A REVIEW , 2003 .

[35]  H. Jennings,et al.  Hydration of alkali-activated ground granulated blast furnace slag , 2000 .

[36]  J. Labrincha,et al.  Use of Red Mud as Addition for Portland Cement Mortars , 2010 .

[37]  M. Moore,et al.  A preliminary investigation of strength development in Jamaican red mud composites , 1996 .

[38]  Kejin Wang,et al.  Characterization and Performance Prediction of Cement-Based Materials Using a Simple Isothermal Calorimeter , 2009 .

[39]  Fredrik P. Glasser,et al.  Alkali releases from crushed minerals and thermally activated constituents of metakaolin , 2003 .