摘要
研究了粉煤灰中铵离子含量对新拌混凝土流动性、混凝土中减水剂掺量及混凝土性能的影响,并采用TOC实验分析了粉煤灰铵离子含量对减水剂吸附量影响。结果表明:随着粉煤灰中铵离子含量的增加,新拌混凝土流动性逐渐降低;混凝土达到相近流动性时,随着粉煤灰中铵离子含量增加,混凝土中减水剂的掺量逐渐增大,混凝土强度均逐渐降低;TOC实验表明粉煤灰中铵离子含量越高对减水剂的饱和吸附量越大。
Effects of ammonium ion content in fly ash on the fluidity of fresh concrete,the superplasticizer dosage in concrete and the properties of concrete were studied,and the effect of adsorption on superplasticizer was analyzed by TOC test.Results show that as the content of ammonium ion in fly ash increases,the fluidity of fresh concrete decreases.When maintaining the close fluidity,as the content of ammonium ion in fly ash increases,the superplasticizer dosage in concrete increases,and the strength of concrete decreases.TOC test shows that the higher content of ammonium ion is,the greater adsorption of superplasticizer will be.
作者
邓晓阳
裴新意
刘自妥
王辉诚
Deng Xiaoyang;Pei Xinyi;Liu Zituo;Wang Huicheng(China Guangdong Nuclear Power Engineering Co Ltd,Shenzhen,Guangdong,China)
出处
《矿产综合利用》
CAS
北大核心
2022年第3期64-69,共6页
Multipurpose Utilization of Mineral Resources
基金
国家重点研发计划(十三五科技计划)资助(2016YEF0202203)。
关键词
粉煤灰
铵离子含量
减水剂掺量
吸附
Fly ash
Ammonium ion content
Superplasticizer dosage
Adsorption
作者简介
邓晓阳(1981-),男,高级工程师,从事核电工程混凝土质量管理;通信作者:裴新意(1980-),男,高级工程师,从事核电工程混凝土质量管理和核电工程混凝土材料研究。
