Research on the frost resistance of lightweight concrete using sludge ceramsite as aggregate
LIANG Jianbin
Abstract：Using sludge ceramsite as coarse aggregate,the effects of aggregate gradation,fly ash,and silica fume content on the frost resistance of ceramsite concrete were investigated.The results showed that concrete made with ceramsite of different parti-cle size gradations as coarse aggregate all had a frost resistance level of 125 cycles,the addition of fly ash was detrimental to the improvement of concrete frost resistance,with all levels of frost resistance being 100 cycles regardless of the fly ash content,thus reducing the frost resistance of ceramsite concrete;silica fume filled the voids between cement particles,improved the interfacial structure and bonding strength,thereby enhancing frost resistance.The frost resistance level is up to 175 cycles at a 5%silica fume content,and all other contents had a frost resistance level of 150 cycles.
Keywords：ceramsitefly ashsilica fumeceramsite concretefrost resistance
Publication Date：2025-07-25
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 16-20,25 )