아질산형 하이드로칼루마이트와 터폴리머 분말수지를 병용한 PCM의 강도 및 방청성

다국어 초록 (Multilingual Abstract)

Nitrite type hydrocalumite is a material which can adsorb the chloride ions causing the corrosion of reinforcing bars and liberate the nitrite ions (NO₂?) inhibiting the corrosion, and provides excellent corrosion-inhibiting property to the reinforcing bars in reinforced concrete by the addition of it to concrete. On the other hand, various redispersible polymer powders have been commercialized to manufacture the construction materials in the form of prepackaged-type products, which have rapidly been developed for lack of skilled workmen in construction sites. In recent years, terpolymer powders of improved quality have been developed and commercialized as cement modifiers. However, the properties of polymer-modified mortars using the terpolymer powders have not been studied till now.
The purpose of the present paper is to examine the strengths and corrosion inhibition of polymer-modified mortars using a VA/E/MMA terpolymer powder with nitrite-type hydrocalumite (calumite) to develop the prepackaged-type materials for dry mortar. Polymer-modified mortars using a newly developed terpolymer powder as polymeric admixtures with the calumite are prepared with various calumite contents and polymer-binder ratios, and tested for strengths and corrosion inhibition. On the whole, the strength properties of VA/E/MMA terpolymer powder-modified mortars are considerably improved with an increase in the polymer-binder ratio regardless of the calumite content. and are remarkably improved over unmodified mortar. It is concluded from the test results that the replacement of the portland cement with the calumite causes a marked improvement in the corrosion-inhibiting property of the polymer-modified mortars.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 실험계획 및 방법
• 3. 실험결과 및 분석
• 4. 결론
• 참고문헌

참고문헌 (Reference)

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2 홍선희, "아질산형 hydrocalumite와 터폴리머 분말수지를 병용한 PMM 및 PMC의 자기방청기능" 30 (30): 2010

3 형원길, "세공구조에 따른 MMA/EA계 폴리머 시멘트 모르타르의 성질" 대한건축학회 20 (20): 103-109, 2004

4 김완기, "VA/E/MMA 터폴리머 분말수지를 이용한 폴리머 시멘트 모르타르의 특성" 대한건축학회 26 (26): 111-118, 2010

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6 Barron, H., "Rubber, Bitumens and Road Surfaces" XC (XC): 23-31, 1935

7 Ohama, Y., "Properties of Polymer-Modified Mortars Using Redispersible Polymer Powders, Proceedings of the First East Asia Symposium on Polymers in Concrete" Kangwon National University Press 81-90, 1994

8 Wagner, H.B., "Polymer-Modified Hydraulic Cements, Industrial & Engineering Chemistry" 4 (4): 191-196, 1965

9 Nutt, W.O., "Polymer Cements, Plastics in Building Structures, Proceedings of a Conference Held in London" Pergamon Press 83-88, 1966

10 Ohama, Y., "Handbook of Polymer-Modified Concretes and Mortars" Noyes Publications 45-86, 1995

11 Y. Ohama, "Effects of Mix Proportioning Factors on Properties of Epoxy-Modified Mortars without Hardner Containing Nitrite-Type Hydrocalumite" KCI 2004

12 Ohama, Y., "Cement Mortars Modified by SB Latexes with Variable Bound Styrene" 37 (37): 758-769, 1964

13 Cresson, L., "British Patent 191"

14 Pareek, S. N., "Adhesion of Bonded Mortars to Polymer-Cement Paste Coated Mortar Substrates" E&FN Spon 1992