?Cellular concrete structures local crisp, mortar, gravel, stones formed between the gap of honeycomb-like hole in its causes. 1, concrete mix improperly allowed to cause mortar, gravel stones, cement materials add water. Concrete mixing time is not enough, at the end, mix, workability difference vibrators not dense. 3, cutting improper or excessive cutting end of the set string Jane concentration of the stones, caused by stones and mortar from the fold. 4 hierarchical cutting concrete end, vibrators untrue or leakage vibration or vibration time is not enough. 5, the template is not tight crevice, the loss of grout. 6, reinforced dense gravel particle size is too large or slump not. 7, based on the pillars, the foot of the wall parts of the end of a little intermittent continue filling the upper concrete. Control measures: Carefully designed and strictly control the concrete mixing ratio, regular checks done and accurate measurement, uniform concrete mix, slump suitable for concrete cutting height of more than 2m the string tube or chute should be located watering should be layered cutting layered tamping prevent leakage vibration template should plug tight, the foundation, the pillars, the foot of the wall should be poured in the lower part of the upper concrete finished pragmatic interval 1 ~ 1.5h before watering, to avoid the "rotten neck. Treatment methods: Small cellular: first wash clean, smooth with cement mortar of 1:2 or 1:2:5 compaction larger cellular: chisel away cellular at the weak loose particles brush cleaned formwork with a high level fine stone concrete the careful packing tamping, deeper cellular such as Clear difficult, buried grouting pipe, exhaust pipe, wipe the surface of the mortar or concrete pouring closed cement grouting treatment.