Design method for mix proportion of solid waste activated powder concrete based on stacking density
The preparation and performance of reactive powder concrete(RPC)were studied by using solid waste admixtures(fly ash,slag and glass powder).The effects of solid waste type,dosage and mixing method on the compactness,working perfor-mance,mechanical properties and microstructure of RPC were studied,and the strength model of solid waste RPC was proposed.The results show that the replacement cement content of fly ash,slag,and glass powder is in the range of 15％,10％～15％,and 20％,respectively,which has advantages in strength,better working performance and better micro performance.The cube compressive strength of the solid waste RPC increased by a maximum of 25.8％.Moreover,with the increase of stacking density,the cube com-pressive strength of the solid waste RPC showed a trend of first increasing and then slightly decreasing.Combined with Bolomey formula and density accumulation model,considering the main factors affecting the performance of RPC,the design method of solid waste RPC mix proportion is proposed,which provides a basis for the engineering application of RPC.
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维普
