摘要
根据室内试验,研究了不同配比的粉煤灰掺石灰混合料的无侧限抗压强度、击实性、渗透性、压缩性及抗剪性,确定出最佳配比,并分析了粉煤灰掺石灰混合料的强度形成机理.这种混合料可用作桩材料,且因其透水性好还可作为垫层料,用粉煤灰混合料垫层可代替砂垫层.由于这种材料具有较好的工程特性,故用其加固地基效果良好.
Based on laboratory tests, the engineering properties of fly ash lime mixture, including compaction, permeability, compression, shear strength and unconfined compression strength are researched ,in addition, the best mixing ratio of the fly ash mixture is determined The strength development mechanism of the fly ash mixture is analyzed The mixed material can be used as pile material to reinforce soft foundation, and it can also be used as cushion material due to its permeability, and the fly ash mixture cushion can replace sand cushion Owing to its better engineering properties, the material is a good one to reinforce soft foundation
出处
《河海大学学报(自然科学版)》
CAS
CSCD
1999年第3期57-62,共6页
Journal of Hohai University(Natural Sciences)
关键词
粉粉灰
石灰
混合料
工程性质
配合比
龄期
fly ash lime mixtures
engineering properties
mixture ratio
age