粉煤灰综合利用 2011N.2 FLY ASH COMPREHENSIVE UTILIZATION 试验 再生骨料中粉料对水泥性能的影响 Effect of Powders in Recycled Aggregats on Cement Performances 侯云芬陈家珑 (北京建筑工程学院材料系,北京100044) 摘要:利用建筑废弃物生产再生骨料时会产生一定量的粒径小于0.075mm的再生粉料。本文从两类有代表性的 再生骨料中筛取再生粉料,将其按照5%10%15%及20%的质量比例掺入水泥中,发现两类再生粉料使水泥的标准稠 度用水量增大,但不会影响凝结时间和安定性;掺入再生粉料后使水泥的强度下降,但当再生粉料掺量高达25%时,水 泥的强度仍然满足其它硅酸盐水泥32.5强度等级的要求。 关键词:再生骨料粉料水泥建筑废弃物性能 中图分类号:TU528.0 文献标识码:A 文章编号:1005-8249(2011)02-0016-04 Houyunfen Chenjialong ( Dep.Materials ,Beijing institute of civil engineering and architecture ,Beijing ,100044 ) Abstract :A certain amount of powders whose particle size is less than 0 .075mm would be formed when aggregates are produced using construction .Two typess recycled powders which are gained by sieving the recycled aggregates are added in cement according to ratio of 5% ,10% .15% and 20% .It is showed that the recycled powders increase the amount for standard consisteney ,but do not effect the setting time and soundness .The recycled decrease the strengths cement ,but the strengths meet the requirements for 32 .5 strength grade of pound Portland cement when the dosages reach 25% Key words :recycled aggregate :powders ;cement ;construction waste...
再生骨料中粉料对水泥性能的影响.pdf
