A Study on the Flow Characteristics and Quality Control of Lightweight Foamed Magnesia Composite Using Super Absorbent Polymers as Base Material for Biological Panels

Abstract:

In this paper, the flow characteristics of a lightweight formed magnesia composite usingsuper absorbent polymer as base material for biological panels were evaluated. The experimentalparameters were evaluated with respect to the flow of the mortar according to the water binder ratio(W/B), the volume ratio of fine aggregate (Vs/Vm), the amount of foaming agent (FM) and theamount of super absorbent polymer (SAP). Statistical analysis was performed on the flow obtainedthrough the experiment and the influence coefficient on the flow quality was obtained. The flowquality prediction model equation of the magnesia composite is proposed through the obtainedinfluence coefficient. The proposed model equation shows that the experimental and predicted valuesare over 90%.

• Periodical: Key Engineering Materials (Volume 789)
• Pages: 176-181
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.789.176
• Online since: November 2018
• Authors: Sung Rok Oh*, Chulgoo Lee, Yung Wang Choi
• Keywords: Biological Panels, Flow, Foamed, Magnesia, Super Absorbent Polymer

References

[1] Y. J. Kim, D. H. Kang, K. H. Ahn, Characteristics of Urban Heat-Island Phenomena caused by Climate Changes in Seoul, and Alternative Urban Design Approaches for Their Improvements, J. Urb. Des. Inst. Korea Urb. Des. 12(3) (2011) 5-14.

[2] E. Alexandri, P. Jones, Temperature decreases in an urban canyon due to greenwalls and green roofs in diverse climates, Buil. Environ. 43(4) (2008) 480–493.

DOI: 10.1016/j.buildenv.2006.10.055

[3] S. B. Kim, G. H. Kim, J. H. Cho, The Urban Heat Island Phenomenon and Potential Mitigation Strategies, J. Nakdong River Envir. Res. Inst. 6(1) (2001) 63-89.

[4] H. J. Cha, J. H. Lim, The Effect of Urban Road Vegetation on a Decrease of Road Surface Temperature, J. Korean Inst. Landscape Archit. 39(3) (2011) 107-116.

DOI: 10.9715/kila.2011.39.3.107

[5] H. F. Di, D. N. Wang, Cooling effect of ivy on a wall, Exp. Heat Transfer. 12(3) (1999) 235–245.

[6] Korea Concrete Institute, Concrete Standard Specification, Korea Concrete Institute Korea (2009).

DOI: 10.4334/jkci.2017.29.6.649

[7] S. Manso, W. D. Muynck, I. Segura, A. Aguado, K. Steppe, N. Boon, N. D. Belie, Bioreceptivity Evaluation of Cementitious Materials Designed to Stimulate Biological Growth, J. Sci. Total Envir. 481 (2014) 232-241.

DOI: 10.1016/j.scitotenv.2014.02.059

[8] H. Ma, B. Xu, Potential to designmagnesium potassiumphosphate cement paste based on an optimal magnesia-to-phosphate ratio, J. Mater. Des. 118 (2017) 81-88.

DOI: 10.1016/j.matdes.2017.01.012

[9] S. H. Kang, J. H. Moon, S. G. Hong, Effect of Internal Curing by Super-Absorbent Polymer (SAP) on Hydration, Autogenous Shrinkage, Durability and Mechanical Characteristics of Ultra-High Performance Concrete (UHPC), J. Korea Concr. Inst. 28 (2016).

DOI: 10.4334/jkci.2016.28.3.317

[10] O. Guillitte, R. Dreesen. Laboratory chamber studies and petrographical analysis as bioreceptivity assessment tolls of building materials. 167 (1995) 365–374.

DOI: 10.1016/0048-9697(95)04596-s

[11] Y. W. Choi, J. H. Lee, B. K. Choi, S. R. Oh, Workability and Compressive Strength Properties of Magnesia-Potassium Phosphate Composites for Biological Panel, J. Korea Acad. Ind. Cooperat. Soc. 18(7) (2017) 357-364.