摘要
通过试验就铝粉膏掺量、拌合水温度、水料比和六偏磷酸钠掺量对蒸压加气混凝土(以下简称AAC)干密度和抗压强度的影响进行了研究。结果表明,随铝粉膏掺量的增加,AAC的干密度逐渐降低;随拌合水温度升高,AAC的干密度先降低后略微升高,抗压强度先降低后基本保持不变;随水料比增大,AAC的干密度先降低后升高,抗压强度不断降低;随六偏磷酸钠掺量的增加,AAC干密度先降低后有所增加,抗压强度先增加后有所降低。合适的铝粉膏掺量为0.30%～0.35%,拌合水温度为60～65℃,水料比为0.60～0.63,六偏磷酸钠掺量为0.7%～1.0%。
The effect of aluminum paste,water temperature, water bind ratio and （NaPO3）6 on the dry density and compressive strength of Autoclaved Aerated Concrete（AAC） was tested. The test results show that,dry density of AAC decreases with increase of aluminum paste; dry density of AAC decreases firstly and slightly increases, compressive strength of AAC decreases firstly and then varies insignificantly with increase of mixing-water temperature,dry density of AAC decreases initially and then increases steadily, compressive strength of AAC decreases with increase of water bind ratio; dry density of AAC decreases firstly and slightly increases, and compressive strength of AAC is just the opposite with increase of （NaPO3）6. Therefore,it is appropriate that aluminum paste and （NaPO3）6 dosage is respectively 0.30%-0.35% and 0.7%-1.0%,water temperature is 60-65℃ and water bind ratio is 0.60-0.63.
出处
《新型建筑材料》
2012年第4期70-73,83,共5页
New Building Materials
基金
"十二五"国家科技支撑计划项目(2011BAE14B06
2012BAJ20B02)
高性能土木工程材料国家重点实验室开放基金资助(2011-2012)
2010年政策引导类计划新产品计划项目资助(2009GJC00012)
国家973基础研究项目计划资助(2009CB623104-5)
关键词
蒸压加气混凝土
铝粉膏
干密度
抗压强度
autoclaved aerated concrete
aluminum paste
dry density
compressive strength
