Influence of mineralogical composition on the properties of lightweight aggregate

被引：16
|
作者：
Hu Shuguang [1 ]
Yang Tingting [1 ]
Wang Fazhou [1 ]
机构：
[1] Wuhan Univ Technol, Key Lab Silicate Mat Sci & Engn, Minist Educ, Wuhan, Peoples R China
来源：
CEMENT & CONCRETE COMPOSITES | 2010年 / 32卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Lightweight aggregate; Mineralogical composition; Cordierite; Cooling; Micro-crack; GLASS; REACTIVITY; ASH;
D O I：
10.1016/j.cemconcomp.2009.10.001
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
When sintering artificial lightweight aggregate, rapid cooling will generate micro-cracks. The paper investigates the effect of MgO contents on the physical, chemical and microstructural properties of artificial lightweight aggregate prepared under natural cooling in the furnace (SC) and rapid cooling outside the furnace (RC). Results indicate that cordierite (2MgO center dot 2Al(2)O(3)center dot 5SiO(2)) starts forming in lightweight aggregate when MgO content reaches 2%, accompanied by a reduction in mullite. Cordierite has a better thermal-shock resistance and its presence minimizes the potential for micro-crack formation, thus decreasing water absorption under rapid cooling conditions for the 2% MgO system. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码：15 / 18
页数：4
相关论文
共 50 条
  • [21] Influence of lightweight aggregate on the bond properties of concrete with various strength grades
    Mo, Kim Hung
    Alengaram, U. Johnson
    Visintin, Phillip
    Goh, See Heng
    Jumaat, Mohd Zamin
    CONSTRUCTION AND BUILDING MATERIALS, 2015, 84 : 377 - 386
  • [22] Composition and Properties of Lightweight Concrete of Variotropic Structure Based on Combined Aggregate and Microsilica
    Shcherban', Evgenii M.
    Stel'makh, Sergey A.
    Mailyan, Levon R.
    Beskopylny, Alexey N.
    Mailyan, Alexander L.
    Shcherban', Natalya
    Chernil'nik, Andrei
    Elshaeva, Diana
    BUILDINGS, 2025, 15 (03)
  • [23] Influence of mix composition on the properties of recycled aggregate concrete
    Zaben, Abdulrahman
    Maslehuddin, Mohammed
    Al-Amoudi, Omar S. B.
    Al-Dulaijan, Salah U.
    STRUCTURAL CONCRETE, 2021, 22 (05) : 2939 - 2951
  • [24] Effects of particle characteristics of lightweight aggregate on mechanical properties of lightweight aggregate concrete
    He, Yan
    Zhang, Xiong
    Zhang, Yongjuan
    Zhou, Yun
    CONSTRUCTION AND BUILDING MATERIALS, 2014, 72 : 270 - 282
  • [25] THE EFFECTS OF ADDITIVES TO LIGHTWEIGHT AGGREGATE ON THE MECHANICAL PROPERTIES OF STRUCTURAL LIGHTWEIGHT AGGREGATE CONCRETE
    Khoshvatan, Mehdi
    Pouraminia, Majid
    CIVIL AND ENVIRONMENTAL ENGINEERING REPORTS, 2021, 31 (01) : 139 - 160
  • [26] Influence of the mineralogical composition on the properties of adobe blocks from Aveiro, Portugal
    Costa, C. S.
    Rocha, F.
    Varum, H.
    Velosa, A.
    CLAY MINERALS, 2013, 48 (05) : 749 - 758
  • [27] Influence of mineralogical composition of applied ball clays on properties of porcelain tiles
    Galos, Krzysztof
    CERAMICS INTERNATIONAL, 2011, 37 (03) : 851 - 861
  • [28] Influence of mineralogical composition on dielectric properties of dispersive mixtures in the microwave band
    Romanov, A.N.
    Radiotekhnika i Elektronika, 2003, 48 (05): : 537 - 544
  • [29] Influence of mineralogical composition on dielectric properties of dispersive mixtures in the microwave band
    Romanov, AN
    JOURNAL OF COMMUNICATIONS TECHNOLOGY AND ELECTRONICS, 2003, 48 (05) : 487 - 493
  • [30] The effects of aggregate properties on lightweight concrete
    Lo, Tommy Y.
    Tang, W. C.
    Cui, H. Z.
    BUILDING AND ENVIRONMENT, 2007, 42 (08) : 3025 - 3029
12345