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- W2392004004 abstract "To prepare ordinary concrete and high strength concrete,spontaneous combustion gangue and calcined coal gangue is used as mineral admixtures to prepare ordinary concrete and high strength concrete. On this basis, the effect of thermal activated coal gangue mineral admixtures with polycarboxylate superplasticizer on chloride-permeation resistance and frost resistance was researched.The results showed that thermal activated coal gangue power has micro-aggregate effect and pozzolanic effect,ordinary concrete and high strength concrete mixed with it has been significantly improved in chloride-permeation resistance,but also has obtained a better frost resistance,on the basis of ensuring high fluidity and hardening strength of their mixture. Ordinary concrete made by spontaneous combustion gangue mineral admixtures chloride permeability electric flux is 1836 C and 758 C at 28 d and 60 d,when the admixture dosage is 35%. And concrete frost resistant grade is F1200,when the admixture dosage is 15%. High strength concrete made by calcined coal gangue mineral admixtures chloride permeability electric flux is 704 C and 487 C at 28 d and 60 d,when the admixture dosage is 30%,at this time,dynamic modulus loss rate is only 1. 55% after 1500 times freeze-thaw circle." @default.
- W2392004004 created "2016-06-24" @default.
- W2392004004 creator A5032320353 @default.
- W2392004004 date "2015-01-01" @default.
- W2392004004 modified "2023-09-23" @default.
- W2392004004 title "Effect of Thermal Activated Coal Gangue Mineral Admixtures on Impermeability and Frost Resistance of Concrete" @default.
- W2392004004 hasPublicationYear "2015" @default.
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