利用陶瓷废料制备加气混凝土的研究  被引量:15

Utilizing ceramic waste for autoclaved aerated concrete

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作  者:徐志辉[1] 韦江雄[1] 李方贤[1] 高品海[1] 陈阳[1] 余其俊[1] 

机构地区:[1]华南理工大学材料科学与工程学院,广东广州510640

出  处:《新型建筑材料》2013年第1期48-51,共4页New Building Materials

基  金:国家自然科学基金项目(51208209);广东省教育部产学研结合项目(2010A090200073)

摘  要:以陶瓷废料、粉煤灰、石灰、水泥等为原料,采用化学发气方法制备加气混凝土。研究了各原材料组分、工艺参数对加气混凝土浆体流变性能及砌块力学性能的影响,并采用SEM和XRD对其微观形貌进行分析。结果表明,当m(水泥)∶m(石灰)∶m(陶瓷废料)∶m(粉煤灰)∶m(石膏)=20∶17∶39∶21∶3,水料比为0.56,铝粉用量为干基物料的0.1%时,制备的加气混凝土砌块表观密度达到B06等级的要求。经蒸压养护后,形成的主要水化产物有C-S-H(I)凝胶、柳叶状托勃莫来石及少量的水化石榴子石。In this article,we used the ceramic wastes, fly ash,lime and Portland cement as the raw materials for the production of Autoclaved Aerated Concrete (AAC) with the chemical aerating method. The effects of mix proportion and some technological parameters to the theological properties and mechanical properties of aerated concrete slurry were studied. At last,we studied the mierostructure through SEM analysis and XRD analysis. The result is that when the specimen was made with the cementitious material [m (cement) :m (lime) :m (wastes) :m (fly ash) :m (gypsum) =20:17:39:21:3], water-binder ratio (W/B) is 0.56, the dosage of aluminum paste is 0.1% relative to the raw materials,and the surface density of the prepared aerated concrete block reached the standard request to a B06 level. After being autoclaved cured, the major hydration products is C-S-H(I) gel, tobermorite and a small amount of hydrogamet.

关 键 词:加气混凝土 陶瓷废料 蒸压养护 水化产物 

分 类 号:TU528.2[建筑科学—建筑技术科学]

 

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