Open-Air Storage Time Impact on Performance of PSP Used as Concrete Admixture

Yu Qiang Lin; Yan Shi; Jia Zheng Li; Hua Quan Yang

doi:10.4028/www.scientific.net/AMR.150-151.1677

Paper Titles

Study on Modification of the Magnesium Phosphate Cement-Based Material by Fly Ash
p.1655

Electrochemical Copolymerization of Triphenylene and 3, 4-Ethylenedioxythiophene and Characterization of the Copolymer
p.1662

Surface Intergrity of Inconel 718 under MQL Condition
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Effect of Binary Admixture of Fly Ash and Slag on the Carbonation of Concrete for Hydraulic Structure
p.1673

Open-Air Storage Time Impact on Performance of PSP Used as Concrete Admixture
p.1677

Modification of Grooved Paulownia Wood Sandwich
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Preparation and Mechanical Properties of Polyurethane Elastomer with Two Soft Segments of HTPB/PTMG
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Application of the Calculator Technique in the Ability about the MMCs of the Anti-Vibration
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Degradation of Orange IV Dye Solution Catalyzed by PVDF/ Fe^3+/Cu²⁺ Membrane in the Presence of H₂O₂
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Open-Air Storage Time Impact on Performance of PSP Used as Concrete Admixture

Abstract:

Paper studies on phosphorus slag powder(PSP) processed from phosphorus slag with different open-air storage time, analyses the changes in the performance of PSP and the impact on properties of cementitious materials. The results showed that with the growth of open storage time, vitreous structure of PSP would gradually be decomposed, part of the vitreous would transform into crystal form. Density of powder would diminish and ignition loss increase. Activity of PSP would slowly decreases, and the activity differences main reflected after 90d. Concerning on the point of concrete strength rating, 10 years phosphorus slag can still be used. The above provide a basis for resource utilization of phosphorus slag with long storage time.