This paper discusses mineral composition and pore microstructure characteristics of water-cooled
manganese slag and its effects on durability of concrete. The Mn slag has an alveolate pore structure, and the
ground Mn slag is characterized by multiangular shape which consists of α-C2S, C3MS2, CaO· MnO·2SiO2 and
C2AS. Experimental results show that the Mn slag has potential hydraulic reactivity. Concrete made with Mn slag
as supplementary cementitious materials (SCMs) exhibits very low strength loss and weight loss in the synthetic
seawater corrosion and freezing-thawing cycle tests. The research provides useful reference for knowing about Mn
slag and for applying Mn slag to improve the durability of concrete.
LIU Rong-jin1,2 (刘荣进), DING Qing-jun1 (丁庆军), CHEN Ping2,3 (陈平), YANG Guang-yao2 (杨光耀)
. Durability of Concrete Made with Manganese Slag as
Supplementary Cementitious Materials[J]. Journal of Shanghai Jiaotong University(Science), 2012
, 17(3)
: 345
-349
.
DOI: 10.1007/s12204-012-1284-y
[1] Mehta P K. Mechanisms of expansion associated with ettringite formation [J]. Cement Concrete Research,1973, 3(1): 1-6.
[2] Frigione G, Sersale R. The action of some aggressive solutions on Portland, pozzolanic and blast furnace
slag cement mortars [J]. Cement Concrete Research,1989, 19(6): 885-893.
[3] Santhanam M, Cohen M D, Olek J. Mechanism of sulfate attack: A fresh look. Part 1. Summary of
experimental results [J]. Cement Concrete Research, 2002, 32(6): 915-921.
[4] Tian B, Cohen M D. Does gypsum formation during sulfate attack on concrete lead to expansion? [J].
Cement Concrete Research, 2000, 30(1): 117-123.
[5] Mohammed T U, Hamada H, Yamaji T. Marine durability of 30-year old concrete made with different
cements [J]. Journal of Advanced Concrete Technology, 2003, 1(1): 63-75.
[6] Rai A, Prabakar J, Raju C B, et al. Metallurgical slag as a component in blended cement [J]. Construction
and Building Materials, 2002, 16: 489-494.
[7] P′era J, Ambroise J, Chabannet M. Properties of blast-furnace slags containing high amounts of manganese
[J]. Cement and Concrete Research, 1999, 29(2): 171-177.
[8] Liu Ring-jin, Chen Ping. Research on the composition, structure, and performance of water-cooled blastfurnace
manganese slags [J]. Ferro Alloys, 2009, 40(3): 42-46 (in Chinese).
[9] Gao Zhi-hai, Song Xiao-yan, Han Jing-yun. Study on physical properties and mechanical chemistry of mechanically
ground manganese slag [J]. Materials Review, 2010, 24(4): 69-72 (in Chinese).
[10] Chen Ping, Wang Yi-liang, Liu Ting, et al. Study on mechanical properties and microstructure of concrete
with ferromanganese slag [J]. Journal of Northeastern University: Natural Sciences, 2010, 31(sup): 165-168 (in Chinese).