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http://dx.doi.org/10.14190/JRCR.2016.4.2.165

Compressive Strength and Ecological Characteristics of Mortars Using Expanded Vermiculite Absorbing Bacteria  

Yoon, Hyun-Sub (Depart. Architectural Engineering, Graduate School, Kyonggi University)
Jung, Seung-Bae (Depart. Architectural Engineering, Graduate School, Kyonggi University)
Yang, Keun-Hyeok (Depart. Plant.Architectural Engineering, Kyonggi University)
Lee, Sang-Seob (Depart. Biological Sciences, Kyonggi University)
Lee, Jae-Young (Grand Kodan Industry Co., LTD.)
Publication Information
Journal of the Korean Recycled Construction Resources Institute / v.4, no.2, 2016 , pp. 165-171 More about this Journal
Abstract
The objective of this study is to evaluate the compressive strength development and ecological characteristics of mortars using expanded vermiculite absorbing bacteria as a fundamental investigation to develop precast eco-concrete products. For bacterial growth under the high-alkalinity and high-dried environments within hardened mortars and for creating plant growth function to mortars, Bacillus alcalophilus and Rhodoblastus acidophilus were separated and cultured. The cultured bacteria were absorbed into expanded vermiculite selected for bacteria shelter. The expanded vermiculite absorbing bacteria was then added into mortar mixture as a volumetric replacement of fine aggregate. Test results showed that the developed technology is very effective in enhancing the plant growth onto the hardened mortars and reducing the COD and T-N concentration in raw water. The optimum replacement level of expanded vermiculite absorbing bacteria can be recommended to be less than 10% considering the compressive strength development and cost of mortars along with the ecological effectiveness.
Keywords
Bacteria; Expanded vermiculite; Absorption; Eco-mortars; Plant growth;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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1 Jeong, J.E., Yang, K.H., Yoon, H.S. (2015). Adsorption technology for bacteria-based concrete coating, Journal of the Korean Recycled Construction Resources Institute, 3(2), 140-145 [in Korean].   DOI
2 KIm, W.J., Choi, K.J., Park, J.S. (2011). An experimental study on water-purification properties in cement bricks using effective micro-organisms and zeolite, Journal of the Korea Concrete Institute, 23(3), 331-338 [in Korean].   DOI
3 Kim, W.J., Do, H.W., Kim, W.S., Chun, W.Y. (2012). An experimental study on water-purification properties and the development of green building materials in moss bricks using effective micro-organisms, Journal of the Architectural Institute of Korea Structure & Construction, 28(5), 103-110 [in Korean].   DOI
4 Shin, C.L. (2014). Natural Purification Treatment Using Nonsintered Soil Brick with Effective Microorganisms, Master's Thesis, University of Seoul, Korea.
5 Wang, J.Y., Snoeck, D., Vlierberghe, S.Van., Verstraete, W., Belie, N.De. (2014). Application of hydrogel encapsulated carbonate precipitating bacteria for approaching a realistic self-healing in concrete, Construction and Building Materials, 68, 110-119.   DOI
6 Wang, J.Y., Tittelboom, K.V., Belie, N.D., Verstraete, Willy. (2012). Use of silica gel or polyurethane immobilized bacteria for self-healing concrete, Construction and Building Materials, 26, 532-540.   DOI