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材料研究学报  2013, Vol. 27 Issue (2): 157-162    
  研究报告 本期目录 | 过刊浏览 |
铁尾矿加气混凝土的制备和性能*
王长龙1, 2 倪文1 乔春雨1 王爽1 吴辉1 李媛1
1. 北京科技大学 土木与环境学院 金属矿山高效开采与安全教育部重点实验室 北京 100083
2. 河北工程大学 土木工程学院 邯郸 056038
Preparation and Properties of Autoclaved Aerated Concrete Using Iron Ore Tailings
WANG Changlong1,2 NI Wen1** QIAO Chunyu1 WANG Shuang1 WU Hui1 LI Yuan1
1. Key Laboratory of the Ministry of Education of China for High-Efficient Mining and Safety of Metal Mines, School of Civil and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083;
2. School of Civil Engineering, Hebei University of Engineering, Handan 056038
引用本文:

王长龙 倪文, 乔春雨, 王爽, 吴辉, 李媛. 铁尾矿加气混凝土的制备和性能*[J]. 材料研究学报, 2013, 27(2): 157-162.
. Preparation and Properties of Autoclaved Aerated Concrete Using Iron Ore Tailings[J]. Chinese Journal of Materials Research, 2013, 27(2): 157-162.

全文: PDF(9084 KB)  
摘要: 以铁尾矿为主要原料制备加气混凝土, 研究了铁尾矿的细度和掺量对其性能的影响。结果表明: 随着铁尾矿细度的减小料浆的流动性提高, 大量气孔的形成使制品的绝干密度降低; 但是, 细度过小使料浆的流动性降低, 在浇注过程中大量气孔的破裂使制品的绝干密度提高。铁尾矿细度减小可提高水化反应速度, 生成更多的水化产物, 使制品的抗压强度提高。但是, 铁尾矿过细使未反应的原料残核过分细小, 不能形成良好的气孔结构, 导致其抗压强度降低。提高铁尾矿的掺量能使水化产物之间的空隙充分填充, 制品的绝干密度随之提高。铁尾矿掺量的提高使托贝莫来石的数量增加, 由针片状变为短纤维状, 相互交叉形成了网状结构, 使制品的抗压强度提高; 但是铁尾矿掺量过高使结晶良好的托贝莫来石数量减少, 网状结构变得相对松散, 导致制品的抗压强度降低。
关键词 无机非金属材料铁尾矿加气混凝土托贝莫来石    
Abstract:Iron ore tailings are used as raw materials to prepare autoclaved aerated concrete (AAC). The effects of fineness and content of iron ore tailings on the properties of AAC were investigated. The results show: as the fineness of iron ore tailings decreases, the mobility of slurry increases, a formation of lot of fine and even bubbles decrease the density of bulks; however, too fine tailings lowers mobility of slurry and a lot of bubbles crack while pouring, which increases density. The decrease of fineness of tailings leads to increase of the hydration reaction rate, generate more hydration products, so compressive strength of bulks increases. But, too fine tailings results in too fine residual of raw material, which is bad to form good pore structure and lowers the strength. High content tailings can fill completely space among hydration products and increase the bulk density. Increase of tailings content increases the amount of tobermorite, and changes the shape of tobermorite from needle-like to short-fiber-like, intersection of which forms network structure and increases the strength. However, too high content of tailings makes the connection of products and the network structure loose, the amount of tobermorite decrease, which result in decrease of the compressive strength.
Key wordsinorganic non-metallic materials    iron ore tailings    autoclaved aerated concrete    tobermorite
    
ZTFLH:  TU528  
1 WANG Xiulan, REN Ruichen, LIU Yang, Application of DTA in preparation of glass-ceramic made by iron tailings, Procedia Earth and Planetary Science, 1(1), 750(2009)
2 S. Zhang, X. Xue, X. Liu, Current situation and comprehensive utilization of iron ore tailing resources, Journal of Mining Science, 42(4), 403(2006)
3 LI Jing, WANG Qi, LIU Jihui, LI Peng, Synthesis process of forsterite refractory by iron ore tailings, Journal of Environmental Sciences, 21(suppl.1), 92(2009)
4 Hülya Kus, Thomas Carlsson, Microstructural investigations of naturally andartificially weathered autoclaved aerated concrete, Cement and Concrete Research, 33(9), 1423(2003)
5 N. Narayanan, K. Ramamurthy, Structure and properties of aerated concrete: a review, Cement and Concrete Composites, 22(5), 321(2000)
6 André Hauser, Urs Eggenberger, Thomas Mumenthaler, Fly ash from cellulose industry as secondary raw material in autoclaved aerated concrete, Cement and Concrete Research, 29(3), 297(1999)
7 Fumiaki Matsushita, Yoshimichi Aono, Sumio Shibata, Carbonation degree of autoclaved aerated concrete, Cement and Concrete Research, 30(11), 1741(2000)
8 Ilja Kadashevich, Hans-Jürgen Schneider, Dietrich Stoyan, Statistical modeling of the geometrical structure of the system of artificial air pores in autoclaved aerated concrete, Cement and Concrete Research, 35(8), 1495(2005)
9 Mustafa Albayrak, Abdulkerim Y?rüko?lu, Serdar Karahana, Sema Atl?han, H. Y?lmaz Arunta?, ?smail Girgin, Influence of zeolite additive on properties of autoclaved aerated concrete, Building and Environment, 42(9), 3161(2007)
10 Kus H, Nygren K, Microenvironmental characterization of rendered autoclaved aerated concrete, Build Res Int, 30(1), 25(2002)
11 WU Xiaomei, FAN Yueming, Type and microstructure of hydration products of fly-ash aerated concrete, Journal of South China University of Technology(Natural Science Edition), 31(8), 57(2003)
(吴笑梅, 樊粤明, 粉煤灰加气混凝土水化产物的种类和微观结构, 华南理工大学学报(自然科学版), 31(8), 57(2003))
12 GUI Miaomiao, CAI Zhenzhe, Analysis of properties and microstructure of autoclaved aerated aoncrete(AAC), Journal of Wuhan university of technology, 33(6), 31(2011)
(桂苗苗, 蔡振哲, 蒸压加气混凝土性能比较及微观分析, 武汉理工大学学报, 33(6), 31(2011))
13 LI Dezhong, NI Wen, ZHANG Jingwen, WU Hui, ZHANG Yuyan, Phase transformation of iron ore tailings during autoclaved curing, Journal of the Chinese Ceramic Society, 39(4), 708(2011)
14 LI Dezhong, NI Wen, WANG Changlong, GENG Biyao, Influence of different curing conditions on the property of autoclaved aerated concrete based on iron ore tailings, New Building Materials, (8), 22(2011)
(李德忠, 倪 文, 王长龙, 耿碧瑶, 不同养护条件对铁尾矿加气混凝土性能的影响, 新型建筑材料, (8), 22(2011))
15 LI Dezhong, NI Wen, ZHENG Yongchao, ZHANG Yuyan, Influence of calcium materials for the mechanical properties of autoclaved aerated concrete based on iron ore tailings, Metal Mine, (5), 161(2011)
(李德忠, 倪 文, 郑永超, 张玉燕, 钙质材料对铁尾矿加气混凝土砌块性能的影响, 金属矿山, (5), 161(2011))
16 FU Kunrong, Investigate of curing system of autoclaved aerated concrete, New Building Materials, (12), 72(2006)
(府坤荣, 蒸压加气混凝土养护制度的探讨, 新型建筑材料, (12), 72(2006))
17 Takayuki Maeshima, Hiroaki Nomab, Masato Sakiyama,?Takeshi Mitsuda. Natural 1.1 and 1.4 nm tobermorites from Fuka, Okayama, Japan: Chemical analysis, cell dimensions, 29Si NMR and thermal behavior, Cement and Concrete Research, 33(10), 1515(2003)
18 J. Bensted, P. Barnes, Structure and performance of cements, 2nd edition, (New York, Spon Press, 2002)p.146
19 E. Bonaccorsi, S. Merlino, A. R. Kampf, The crystal structure of tobermorite 14 ? (Plombierite), a C-S-H phase, Journal of The American Ceramic Society, 88(3), 505(2005)
20 WANG Changlong, NI Wen, LI Dezhong, GENG Biyao. Experimental study of using Shanxi Lingqiu low-silica iron ore tailings to produce aerated concrete, Journal of China Coal Society, 37(7): 1129(2012)
(王长龙, 倪 文, 李德忠, 耿碧瑶.山西灵丘低硅铁尾矿制备加气混凝土的试验研究, 煤炭学报, 37(7): 1129(2012))
21 Jae Eun Oh, Simon M. Clark, Hans-Rudolf Wenk, Experimental determination of bulk modulus of 14 ? tobermorite using high pressure synchrotron X-ray diffraction, Cement and Concrete Research, 42(2), 397(2012)
22 Huang Xiaoyan, Ni Wen, Cui Weihua, Preparation of autoclaved aeratedconcrete using copper tailings and blast furnace slag, Construction and Building Materials, 27(1), 1(2012)
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