Mechanical and physical properties of cement blended with sewage sludge ash.

The aim of this paper is to evaluate the compatibility of sewage sludge ash (SSA) with various types of commercially available cements (CEM I and CEM II types, cements with several proportions of clinker). The behaviour of mortars fabricated with various percentages (10-30% by weight) of the cement replaced by SSA has been analyzed in terms of workability, mechanical strength, porosity and shrinkage/expansion. SSA exhibits moderate pozzolanic activity; the highest compressive strengths were obtained with 10% of the cement replaced by SSA. The CEM II/B-M (V-LL) 42.5R cement is considered ideal for preparing mortars containing SSA. Shrinkage data demonstrate that sulphates present in SSA are not reactive towards cement.

[1]  Philip Nixon,et al.  Sustainable concrete construction , 2004 .

[2]  P. Wainwright,et al.  Synthetic aggregates from combustion ashes using an innovative rotary kiln. , 2001, Waste management.

[3]  I. Gómez,et al.  Evaluation of composted sewage sludge as nutritional source for horticultural soils. , 2006, Waste management.

[4]  Jordi Payá,et al.  Use of sewage sludge ash(SSA)-cement admixtures in mortars , 1996 .

[5]  M Glavind,et al.  GREEN CONCRETE - A LIFE CYCLE APPROACH , 2002 .

[6]  Ismail M. Madany,et al.  USE OF SEWAGE SLUDGE ASH IN ASPHALTIC PAVING MIXES IN HOT REGIONS , 1995 .

[7]  Jordi Payá,et al.  Comparisons among magnetic and non-magnetic fly ash fractions: Strength development of cement-fly ash mortars , 1996 .

[8]  K. J. Reid,et al.  COMPRESSIVE STRENGTH OF MUNICIPAL SLUDGE ASH MORTARS , 1989 .

[9]  Ing-Jia Chiou,et al.  Sintering effect on cement bonded sewage sludge ash , 2006 .

[10]  E. Vázquez,et al.  Stabilisation and solidification of sewage sludges with Portland cement , 2000 .

[11]  Jordi Payá,et al.  Mechanical treatment of fly ashes part II: Particle morphologies in ground fly ashes (GFA) and workability of GFA-cement mortars , 1996 .

[12]  J. Monzó,et al.  Reuse of sewage sludge ashes (SSA) in cement mixtures: the effect of SSA on the workability of cement mortars. , 2003, Waste management.

[13]  S L Sarkar,et al.  New Cements for Sustainability , 2003 .

[14]  E. Vázquez,et al.  Leaching properties of stabilised/solidified cement-admixtures-sewage sludges systems. , 2002, Waste management.

[15]  Cheng-Fang Lin,et al.  Recovery of municipal waste incineration bottom ash and water treatment sludge to water permeable pavement materials. , 2006, Waste management.

[16]  Jordi Payá,et al.  Advantages in the use of fly ashes in cements containing pozzolanic combustion residues: silica fume, sewage sludge ash, spent fluidized bed catalyst and rice husk ash† , 2002 .

[17]  Bernd Wiebusch,et al.  Utilization of sewage sludge ashes in the brick and tile industry , 1997 .

[18]  Ing-Jia Chiou,et al.  Lightweight aggregate made from sewage sludge and incinerated ash. , 2006, Waste management.

[19]  Jordi Payá,et al.  Mechanical behavior of mortars containing sewage sludge ash (SSA) and Portland cements with different tricalcium aluminate content , 1999 .

[20]  Kae‐Long Lin,et al.  Hydration Characteristics of Waste Sludge Ash Utilized as Raw Cement Material , 2005 .

[21]  M. Katsioti,et al.  Properties of stabilized/solidified admixtures of cement and sewage sludge , 2007 .

[22]  E. G. Alcocel,et al.  Efecto de la adición de ceniza de lodo de depuradora (CLD) en las propiedades mecánicas y niveles de corrosión de las armaduras embebidas en morteros de cemento Portland , 2006 .

[23]  E. Peris Mora,et al.  Influence of different sized fractions of a fly ash on workability of mortars , 1993 .