The role of dissolved rice husk ash in the development of binary blast furnace slag-sewage sludge ash alkali-activated mortars

被引：9
|
作者：
Istuque, Danilo Bordan [1 ]
Paya, Jordi [2 ]
Soriano, Lourdes [2 ]
Victoria Borrachero, Maria [2 ]
Monzo, Jose [2 ]
Tashima, Mauro Mitsuuchi [1 ]
机构：
[1] Univ Estadual Paulista, Fac Engn Ilha Solteira, UNESP, MAC Grp Pesquisa Mat Alternat Construcao, Ilha Solteira, SP, Brazil
[2] Univ Politecn Valencia UPV, ICITECH Inst Ciencia & Tecnol Hormigon, Valencia, Spain
来源：
JOURNAL OF BUILDING ENGINEERING | 2022年 / 52卷
关键词：
Alkaline activation; Rice husk ash; Sodium silicate suspensions; Sewage sludge ash; Blast furnace slag; Microstructure; COMPRESSIVE STRENGTH; SODIUM-SILICATE; FLY-ASH; GEOPOLYMER; CEMENT; BINDERS; MICROSTRUCTURE; SSA; HYDRATION; CONCRETE;
D O I：
10.1016/j.jobe.2022.104472
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
This study evaluated the compressive strength performance and microstructure of binary blast furnace slag-sewage sludge ash (BFS-SSA) alkali-activated mortars, in which rice husk ash (RHA) was dissolved in NaOH solution to replace commercial sodium silicate. The dissolution of RHA, performed in a thermal bottle with NaOH solution, enhanced the compressive strength of the alkali-activated mortars based on BFS up to 4.5-fold. BFS-SSA based mortars (10-40% SSA), activated with NaOH/RHA-based sodium silicate suspensions, reached a compressive strength up to 30 MPa after 28 curing days at 20 degrees C. The RHA dissolution enhanced the strength and sustainability of the BFS-SSA alkali-activated mortars.
引用
收藏
页数：14
相关论文
共 50 条
  • [1] Rice husk ash as a source of silica in alkali-activated fly ash and granulated blast furnace slag systems
    Mejia, J. M.
    Mejia de Gutierrez, R.
    Puertas, F.
    MATERIALES DE CONSTRUCCION, 2013, 63 (311) : 361 - 375
  • [2] Rice husk ash for alkali activation binary blends (fly ash/blast furnace slag)
    Cardenas Pulido, Jhon
    Aperador Chaparro, John Wilfer
    Aperador Chaparro, Willian
    Pinzon Cardenas, Manuel Jonathan
    Chunga, Kervin
    Ospina Guzman, Michel Angelo
    MATERIA-RIO DE JANEIRO, 2019, 24 (01):
  • [3] Design and properties of 100% waste-based ternary alkali-activated mortars: Blast furnace slag, olive-stone biomass ash and rice husk ash
    Font, Alba
    Soriano, Lourdes
    de Moraes Pinheiro, Sayonara Maria
    Tashima, Mauro M.
    Monzo, Jose
    Borrachero, Maria Victoria
    Paya, Jordi
    JOURNAL OF CLEANER PRODUCTION, 2020, 243 (243)
  • [4] Early strength development and hydration of alkali-activated blast furnace slag/fly ash blends
    Shi, C
    Day, RL
    ADVANCES IN CEMENT RESEARCH, 1999, 11 (04) : 189 - 196
  • [5] The inhibitory influence of rice husk ash on the alkali leaching and efflorescence extents of alkali activated granulated blast furnace slag
    Nseke, Joseph
    Kirkelund, Gunvor Marie
    Sithole, Thandiwe
    FRONTIERS IN BUILT ENVIRONMENT, 2024, 10
  • [6] Compressive Strength and Microstructure of Alkali-Activated Blast Furnace Slag/Sewage Sludge Ash (GGBS/SSA) Blends Cured at Room Temperature
    Tashima, M. M.
    Reig, L.
    Santini, M. A., Jr.
    Moraes, J. C. B.
    Akasaki, J. L.
    Paya, J.
    Borrachero, M. V.
    Soriano, L.
    WASTE AND BIOMASS VALORIZATION, 2017, 8 (05) : 1441 - 1451
  • [7] Compressive Strength and Microstructure of Alkali-Activated Blast Furnace Slag/Sewage Sludge Ash (GGBS/SSA) Blends Cured at Room Temperature
    M. M. Tashima
    L. Reig
    M. A. Santini
    J. C. B Moraes
    J. L. Akasaki
    J. Payá
    M. V. Borrachero
    L. Soriano
    Waste and Biomass Valorization, 2017, 8 : 1441 - 1451
  • [8] Preparation and Microstructure of Alkali-Activated Rice Husk Ash-Granulated Blast Furnace Slag Tailing Composite Cemented Paste Backfill
    Zhao, Wenhua
    Ji, Ceyao
    Sun, Qi
    Gu, Qi
    MATERIALS, 2022, 15 (13)
  • [9] Geopolymer Concrete Blast furnace slag and rice husk ash
    Mullasseri, Sileesh
    Baskar, Sushmitha
    Badrinarayan, S.
    Naik, Pavithra P.
    Udham, P. K.
    Raj, Anup
    Nagaleekar, Viswas Konasagara
    CURRENT SCIENCE, 2018, 115 (12): : 2192 - 2193
  • [10] Properties of alkali-activated fly ash/slag repair mortars
    Ghafoori, N.
    Najimi, M.
    CONCRETE SOLUTIONS: PROCEEDINGS OF CONCRETE SOLUTIONS, 5TH INTERNATIONAL CONFERENCE ON CONCRETE REPAIR, 2014, : 77 - 81
12345