Biotechnology Bulletin ›› 2019, Vol. 35 ›› Issue (9): 61-69.doi: 10.13560/j.cnki.biotech.bull.1985.2019-0512

Previous Articles     Next Articles

Biological Improvement Technology for Civil Construction Sites and Building Materials:A Review

HAO Da-cheng1, LU Lan-lan2   

  1. 1. Biotechnology Institute,School of Environment and Chemical Engineering,Dalian Jiaotong University,Dalian 116028;
    2. School of Civil Engineering,Dalian Jiaotong University,Dalian 116028
  • Received:2019-06-08 Online:2019-09-26 Published:2019-09-16

Abstract: Various aspects of construction biotechnology,especially biological improvement technology for civil construction sites and building materials,have formed a new interdisciplinary field involving environmental and industrial microbiology,biogeochemistry,as well as the application of biotechnology in geotechnical and civil/environmental engineering. This paper summarizes the progress of research and application of microbial technology improvement in civil engineering sites and building materials,and discusses the biogeochemical processes related to construction. Bioaggregation can be used to control wind erosion and dust emission. Biocrusting,bioclogging and soil biocementation have different mechanisms and use modes. Other novel ground improvement methods,such as biodesaturation of water-saturated cohesionless soil,bioencapsulation of soft soil and bioimmobilization of soil pollutants,have their own unique mechanisms and advantages. At present,the most microbial geotechnical engineering research is still in the laboratory stage,and more efforts are needed to transform scientific concepts into feasible technologies. Therefore,this article aims to summarize the research and application progress of microbial technology improvement in civil construction sites and materials,to discuss the microbial processes related to construction that relevant researchers and engineers need to understand,and to briefly discuss the design principles and precautions of various field applications.

Key words: civil construction sites, building materials, microbial technology, improvement