Advanced SearchSearch Tips
Experimental Study on Engineering Properties of Concrete Using Fluosilicates Based Composite
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Experimental Study on Engineering Properties of Concrete Using Fluosilicates Based Composite
Yang Il-Seung; Yun Hyun-Do; Kim Do-Su; Khil Bae-Su; Han Seung-Gu;
  PDF(new window)
Fluosilicic acid(H2SiF6) is recovered as an aqueous solution which absorbs produced from the manufacturing of industrial-graded H3PO4 or HF. Generally, fluosilicates are the salts produced by the reaction of H2SiF6 and metal salts. Addition of fluosilicates to cement endows odd properties through unique chemical reaction with the fresh and hardened cement. This study was performed to know mechanical properties and watertightness using fluosilicates based composite made from fluosilicates and other compounds. Mix proportions for experiments were modulated at 0.45 of water to cement ratio and of adding ratio of fluosilicates based composite. Evaluation for mechanical properties of concrete was conducted to know fresh state of concrete, hardening state of concrete, and watertightness. Evaluation for watertightness of concrete was carried out permeability, absorption test and porosity analysis. In addition. Scanning Electron Microscopy(SEM) and Energy Dispersive X-Ray(EDX) used for investigating micro-structure and atomic component distributed in hardened concrete. It is ascertained that characteristics of mechanical properties and watertightness was more improved than non-added because of packing role of fluosilicates based composite and pozzolanic reaction of soluble . Also, concrete added fluosilicates based composite had a tendency to delay setting time and only addition of fluosilicates based composite delayed 150 minutes compared with non-added.
fluosilicates based composites;fluosilicic acid;permeability;porosity;watertightness;
 Cited by
다공성 제올라이트 콘크리트의 수질정화 특성,최민지;성낙국;박성재;이정아;윤홍수;홍인권;

공업화학, 2011. vol.22. 3, pp.332-335
Effect of Mineral Trioxide Aggregate Surface Treatments on Morphology and Bond Strength to Composite Resin, Journal of Endodontics, 2014, 40, 8, 1210  crossref(new windwow)
Characteristics of structural concrete containing fluorosilicate-based admixture (FBA) for improving water-tightness, Construction and Building Materials, 2015, 74, 241  crossref(new windwow)
Effects of Shrinkage Reducing Agent (SRA) Type and Content on Mechanical Properties of Strain Hardening Cement Composite (SHCC), Journal of the Korea Concrete Institute, 2016, 28, 1, 41  crossref(new windwow)
D. S. Kim, B. S. Khil, H. S. Lim, J. H. Nam, and J. S. Rho, 'Fluidity and Hydration Properties of Cement Paste added Zinc Fluosilicate (ZnSiF6, aq)(in Kor.)', J. Kor. Ceram Soc, Vol.39, No.2, 2002, pp.178-183 crossref(new window)

P. Kumar Mehta, Concrete Structure, Properties, and Materials, Prentice Hall, 1992, pp.17-41

J. R. Lee, J. O. Kim, S. G. Han, Y. S. Kang, B. S. Khil, and J. H. Nam, 'Experimental Study on the Watertightness and Hardening Properties of Concrete using Fluosilicate Salt Based Chemical Admixture', Proc of the Korea Concrete Institute, Vol.6, No.1, 2004, pp.36-39

ACI Committee 318, Building Code Requirement for Requirement Concrete and Commentary, American Concrete Institute, 1995, pp.57-62

K. Inada, N. Kozakai, H. Inokawa, and K. Uchida, 'Effect of Heat Controlling Agent in Mass Concrete', CAJ proceeding cf Cement & Ccncrete, Vol.44, 1990, pp.198-203

J. H. Lee, K. H. Lee, and H. K. Kim, 'A Study on the Retarding Effects of Cement Mortar Setting(in Kor.)', J. Kor. Ceram. Soc., Vol.33, No.3, 1996, pp.307 -312

J. S. Rho, Cement and Fluorine Chemistry, Cement, 1997, pp.51-60

S. H. Han, K. H. Lee, S. C. Jung, and N. H. Kim, 'The Effects of Hydration Retarding of Portland Cement by MgSiF6. 6H20(in Kor.)', J Kor. Ceram Soc., Vol.34, No.2, 1997, pp.163-170

M. H. Grant, Fluorine Chemistry (A Comprehensive Treatment): A Wiley Interscience Publication, New York, 1994. pp.83-95

J. O. Kim, J. H. Nam, D. S. Kim, B. S. Khil, and B. K. Lee, 'Changes in Hydration and Watertightness of Cement Containing Two-Compponent Fluosilicate Salt Based Chemical Admixture(in Kor.)', J. Kor. Ceram Soc., Vol.41, No.10, 2004, pp.749-755 crossref(new window)

V. S. Ramachandran, Concrete Admixture Handbook (Properties, Science, and Technology), 2nd: Noyes Publication, Ottawa, 1995, pp.264-266

P. Paulini, 'Reaction Mechanism of Concrete Admixture', Cement and Concrete Research, Vol.20, No.1, 1990, pp.910-918 crossref(new window)

W. Gerhartz, Ullmann's Encyclopedia of Industrial Chemistry, Fluorine Compounds, Inorganic, A Wiley Interscience Publication, Vol.A11, 1997, pp.326-335

강성웅, 양일승, 한병찬, 김도수, 길배수, 윤현도, '규불 화염계 균열저감제를 이용한 균열저감 특성', 한국콘크리트학회 가을학술발표회 논문집, Vol.16, No.2, 2004 pp.289-292