Advanced SearchSearch Tips
Mechanical Properties of Mortar Containing Bio-Char From Pyrolysis
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Mechanical Properties of Mortar Containing Bio-Char From Pyrolysis
Choi, Won Chang; Yun, Hyun Do; Lee, Jae Yeon;
  PDF(new window)
Bio-char, obtained from biomass as a by-product of the pyrolysis process, is used successfully as a soil amendment and carbon sequester in this limited study. Recent and active research from literatures has extended the application of bio-char in the industry to promote sustainability and help mitigate the negative environmental impacts caused by carbon emissions. This study aims to investigate the feasibility of high-carbon bio-char as a carbon sequester and/or admixture in mortar and concrete to improve the sustainability of concrete. This paper presents the experimental results of an initial attempt to develop a cement admixture using bio-char. In particular, the effects of the water retention capacity of bio-char in concrete are investigated. The chemical and mechanical properties (e.g., the chemical components, microstructure, concrete weight loss, compressive strength and mortar flow) are examined using sample mortar mixes with varying replacement rates of cement that contains hardwood bio-char. The experimental results also are compared with mortar mixes that contain fly ash as the cement substitute.
Bio-char;Cement admixture;Compressive strength;Flow rate;Weight loss rate;
 Cited by
Use of biochar-coated polypropylene fibers for carbon sequestration and physical improvement of mortar, Cement and Concrete Composites, 2017, 83, 171  crossref(new windwow)
American Society for Testing and Materials (ASTM), ASTM C 618:Standard specification for coal fly ash and raw or calcined natural pozzolan for use as a mineral admixture in concrete. In Annual Book of ASTM Standards 04.02, 2001.

ASTM C1437, Standard Test Method for Flow of Hydraulic Cement Mortar. Philadelphia, PA, 2001.

Brewer, C. E., K. Schmidt-Rohr, J. A. Satrio and R. C. Brown., Characterization of biochar from fast pyrolysis and gasification systems. Environmental Progress & Sustainable Energy vol. 28, No. 3, 2009, pp.386-396. crossref(new window)

Brummer, E. C., C. L. Burras, M. D. Duffy and K. L. Moore, Switchgrass Production in Iowa: Economic Analysis, Soil Suitability, and Varietal Performance. Final Report for Bioenergy Feedstock Development Program. Iowa State University, 2001.

Canadian biochar initiative,

Chusilp, N., C. Jaturapitakkul and K. Kiattikomol, Effect of LOI of ground bagasse ash on the compressive strength and sulfate resistance of mortars, Construction and Building Materials vol. 23, No. 12, 2009, pp.3,523-3,531. crossref(new window)

Cordeiro, G. C., R. D. T. Filho and E. M. R. Fairbairn, Use of ultrafine rice husk ash with high-carbon content as pozzolan in high performance concrete, Materials and Structures, vol. 42, No. 7, 2009, pp.983-992. crossref(new window)

Dhir, P. K., P. C. Hewlett and T. D. Dyer, Mechanism of water retention in cement pastes containing a self-curing agent, Magazine of Concrete Research vol. 50, No. 1, 1998, pp.85-90. crossref(new window)



Portland Cement Association,

Scott, D. S. and J. Piskorz, The continuous flash pyrolysis of biomass, The Canadian Journal of Chemical Engineering, vol. 62, 1984, pp.404-412. crossref(new window)

Sohi, S., E. Loez-Capel, E. Krull and R. Bol, Biochar's roles in soil and climate change: A review of research needs, CSIRO Land and Water Science Report 05/09, 2009, p.64.

Wang, J., R. K. Dhir and M. Levitt, Membrane curing of concrete, Cement Concrete Research vol. 24, No. 8, 1994, pp.1,463-1,474. crossref(new window)

Woolf, D., Biochar as a soil amendment: A review of the environmental implications, In: Swansea, 2008.