Development of high volume rice husk ash alumino silicate composites

被引:62
作者
Rattanasak, Ubolluk [2 ,3 ]
Chindaprasirt, Prinya [1 ]
Suwanvitaya, Prasert [4 ]
机构
[1] Khon Kaen Univ, Dept Civil Engn, Fac Engn, Khon Kaen 40002, Thailand
[2] Burapha Univ, Dept Chem, Fac Sci, Chon Buri 20131, Thailand
[3] Burapha Univ, Ctr Innovat Chem, Fac Sci, Chon Buri 20131, Thailand
[4] Kasetsart Univ, Dept Civil Engn, Fac Engn, Bangkok 10903, Thailand
关键词
composite materials; rice husk ash; aluminium hydroxide; boric acid; alumino silicates; sulphate attack; FLY-ASH; SODIUM;
D O I
10.1007/s12613-010-0370-0
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The development of high volume rice husk ash (RHA) alumino silicate composites (ASC) was studied. RHA was used as the source of silica and aluminium in the ASC. The mass ratios of RHA:Al(OH)(3) of 70:30 to 99:1 were tested. The results indicate that the obtained ASC mortars are not stable and disintegrate in water. Boric acid was introduced to the mixture to overcome this problem. Stable ASC mortars with high RHA:Al(OH)(3) mass ratios of 90:10 to 97.5:2.5 were obtained with the use of boric acid and 115 degrees C curing. The compressive strength of the mortar of 20 MPa was gained. The immersion test indicates that high volume RHA ASC mortars show good resistance in 3vol% H2SO4 solution, but is slightly less durable in 5wt% MgSO4 solution.
引用
收藏
页码:654 / 659
页数:6
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