Distribution of calcium carbonate in the process of concrete self-healing

Chunxiang Qian; Ruiyang Li; Mian Luo; Huaicheng Chen

doi:10.1007/s11595-016-1410-z

Journal of Wuhan University of Technology Materials Science Edition ›› 2016, Vol. 31 ›› Issue (3) : 557 -562. DOI: 10.1007/s11595-016-1410-z

Cementitious Materials

Distribution of calcium carbonate in the process of concrete self-healing

Chunxiang Qian ¹^,²^,^{^a}
, Ruiyang Li ¹^,²
, Mian Luo ¹^,²
, Huaicheng Chen ¹^,²

Author information +

History +

PDF

Abstract

The complete deposition distribution process of calcium carbonate is summarized in three directions of cracks. Distribution of calcium carbonate in the self-healing process of microbial concrete is studied in detail, with the help of a variety of analytical techniques. The results show that carbonate deposits along the x-axis direction of the cracks. The farther from the crack surfaces of concrete matrix in x-axis direction, the more the content of the substrate, the less content of calcium carbonate. Gradual accumulation of calcium carbonate along the y-axis direction is like building a house with bricks. Different repair points are gradually connected, and ultimately the whole of cracks are completely filled. In the z-axis direction, calcium deposits on the surface of fracture direction, when the crack is filled on the surface, because the internal crack hypoxia in the depths of cracks hardly produces calcium carbonate.

Keywords

microbial concrete / cracks / self-healing / calcium carbonate / deposition

Cite this article

Download citation ▾

Chunxiang Qian, Ruiyang Li, Mian Luo, Huaicheng Chen. Distribution of calcium carbonate in the process of concrete self-healing. Journal of Wuhan University of Technology Materials Science Edition, 2016, 31(3): 557-562 DOI:10.1007/s11595-016-1410-z

登录浏览全文

4963

注册一个新账户忘记密码

References

Publishing order | Descend order by publishing year | Descend order by cited within

[1]	Bang S S, Lippert J J, Yerra U, et al. Microbial Calcite, a Bio-based Smart Nanomaterial in Concrete Remediation[J]. Int. J. Smart Nano. Mater., 2010, 1(1): 28-39.

[2]	Muynck W D, Debrouwer D, Belie N D, et al. Bacterial Carbonate Precipitation Improves the Durability of Cementitious Materials[J]. Cem. Concr. Res., 2008, 8(7): 1005-1014.

[3]	Ramakrishnan V. Performance Characteristics of Bacterial Concrete -a Smart Biomaterial[C]. Proc 1st International Conference on Recent Advances in Concrete Technology, 2007

[4]	Gollapudi U K, Knutson C L, Bang S S, et al. A New Method for Controlling Leaching Through Permeable Channels[J]. Chemosphere, 1995, 30(4): 695-705.

[5]	Bang S S, Galinat J K, Ramakrishnan V. Calcite Precipitation Induced by Polyurethane -Immobilized Bacillus Pasteurii[J]. Enzy. Microb. Techno., 2001, 28(4-5): 404-409.

[6]	Jonkers H M, Schlangen E. Development of a Bacteria based Selfhealing Concrete[J]. Proc. Int. FIB. Symp., 2008, 1: 425-430.

[7]	Jonkers H M, Thijssen A, Muyzer G, et al. Application of Bacteria as Self-healing Agent for the Development of Sustainable Concrete[J]. Ecol. Eng., 2010, 36(2): 230-235.

[8]	Jonkers H M. Bacteria-based Self-healing Concrete[J]. Heron, 2011, 56: 195.

[9]	Wiktor V, Jonkers H M. Quantification of Crack-healing in Novel Bacteria-based Self-healing Concrete[J]. Cem. Concr. Compos., 2011, 33(7): 763-770.

[10]	Jonkers H M. Self-healing Concrete: a Biological Approach[C]. Self Healing Materials-An Alternative Approach to 20 Centuries of Materials Science, 2007

[11]	Muynck W D, Cox K, Belie N D, et al. Bacterial Carbonate Precipitation as an Alternative Surface Treatment for Concrete[J]. Constr. Build. Mater., 2008, 22(5): 875-885.

[12]	Tittelboom K V, Belie N D, Muynck W D, et al. Use of Bacteria to Repair Cracks in Concrete[J]. Cem. Concr. Res., 2010, 40(1): 157-166.

[13]	Wang J Y, Tittelboom K V, De Belie N, et al. Use of Silica Gel or Polyurethane Immobilized Bacteria for Self-healing Concrete[J]. Constr. Build. Mater., 2013, 26: 532-540.