CLC number: TU502
On-line Access: 2024-08-27
Received: 2023-10-17
Revision Accepted: 2024-05-08
Crosschecked: 2015-01-23
Cited: 2
Clicked: 5710
Citations: Bibtex RefMan EndNote GB/T7714
Hui-mei Zhu, Pei-ming Wang, Guo-fang Zhang. Influence of vinyl acetate/ethylene copolymer powder on secondary efflorescence in Portland cement-based decorative mortar[J]. Journal of Zhejiang University Science A, 2015, 16(2): 143-150.
@article{title="Influence of vinyl acetate/ethylene copolymer powder on secondary efflorescence in Portland cement-based decorative mortar",
author="Hui-mei Zhu, Pei-ming Wang, Guo-fang Zhang",
journal="Journal of Zhejiang University Science A",
volume="16",
number="2",
pages="143-150",
year="2015",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A1300403"
}
%0 Journal Article
%T Influence of vinyl acetate/ethylene copolymer powder on secondary efflorescence in Portland cement-based decorative mortar
%A Hui-mei Zhu
%A Pei-ming Wang
%A Guo-fang Zhang
%J Journal of Zhejiang University SCIENCE A
%V 16
%N 2
%P 143-150
%@ 1673-565X
%D 2015
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A1300403
TY - JOUR
T1 - Influence of vinyl acetate/ethylene copolymer powder on secondary efflorescence in Portland cement-based decorative mortar
A1 - Hui-mei Zhu
A1 - Pei-ming Wang
A1 - Guo-fang Zhang
J0 - Journal of Zhejiang University Science A
VL - 16
IS - 2
SP - 143
EP - 150
%@ 1673-565X
Y1 - 2015
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A1300403
Abstract: In this paper, the effect of redispersible vinyl acetate/ethylene copolymer powder (VAE) on the secondary efflorescence of portland cement-based decorative mortar (PCDM) was evaluated by alkalis leachability. The secondary efflorescence substances were investigated using X-ray diffraction (XRD), X-ray fluorescence (XRF), and scanning electron microscope (SEM). The mechanism was also analyzed from the aspect of soluble components in PCDM. The results show that the secondary efflorescence level of PCDM can be quantitatively evaluated by alkalis leachability, with a higher alkali leachability indicating more obvious secondary efflorescence. VAE increases the concentrations of free alkalis ions including Ca2+, K+, Na+ of PCDM, improves the capacity of pore water transmitting ions, increases the alkalis leachability of PCDM, and accordingly promotes the secondary efflorescence of PCDM.
[1]Chandra, S., Flodin, P., 1987. Interactions of polymers and organic admixtures on Portland cement hydration. Cement and Concrete Research, 17(6):875-890.
[2]DIN52617:1987. Determination of the Water Absorption Coefficient of Building Materials. Beuth-Verlag, Berlin.
[3]Dow, C., Glasser, F.P., 2003. Calcium carbonate efflorescence on Portland cement and building materials. Cement and Concrete Research, 33(1):147-154.
[4]GB/T2015:2005. White Portland Cement. National Standardization Management Committee, China.
[5]ISO 679:2009. Cement–Test Methods–Determination of Strength. International Organization for Standardization.
[6]Kani, E.N., Allahverdi, A., Provis, J.L., 2012. Efflorescence control in geopolymer binders based on natural pozzolan. Cement & Concrete Composites, 34(1):25-33.
[7]Kresse, P., 1987. Efflorescence-mechanism of occurrence and possibilities of prevention. Betonwerk und Fertigteil– Technik, 53:160-168.
[8]Larbi, J.A., Bijen, J.M., 1990. Interaction of polymers with Portland cement during hydration: a study of the chemistry of the pore solution of polymer-modified cement systems. Cement and Concrete Research, 20(1):139-147.
[9]Liu, J.C., Gai, G.Q., 2011. The mechanics research of decorative mortar. Journal of Jilin Institute of Architecture & Civil Engineering, 28(2):72-74 (in Chinese).
[10]Sghaier, N., Prat, M., 2009. Effect of efflorescence formation on drying kinetics of porous media. Transport in Porous Media, 80(3):441-454.
[11]Silva, D.A., Roman, H.R., Gleize, P.J.P., 2002. Evidences of chemical interaction between VAE and hydrating Portland cement. Cement and Concrete Research, 32(9):1383-1390.
[12]Wang, P.M., Zhang, G.F., Zhang, Y.M., 2005. Influence of polymer powders on mechanical properties of cement mortar. New Building Materials, 2005(1):32-36 (in Chinese).
[13]Yang, H., Jin, D.L., Ma, Z.J., et al., 2007. Effects of additives on morphology and crystal structure of calcium carbonate particles. Journal of Zhejiang Sci-Tech University, 24(5):449-552 (in Chinese).
[14]Zhu, H.M., Wang, P.M., Wang, R., et al., 2014. Effects of two redispersible polymer powders on early efflorescence of Portland cement-based decorative mortar. Materials Science, 20(3):345-350.
Open peer comments: Debate/Discuss/Question/Opinion
<1>