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Abstract ▼ AI-Helper

Fluidity retention of concrete used high range water reducing AE agent(HWAE) is varied according to main component, dosage amount and dosing method of HWAE. The type and substitution ratio of mineral admixture also have influence on the fluidity retention of concrete used HWAE. In this study, for th...

Fluidity retention of concrete used high range water reducing AE agent(HWAE) is varied according to main component, dosage amount and dosing method of HWAE. The type and substitution ratio of mineral admixture also have influence on the fluidity retention of concrete used HWAE. In this study, for the purpose of improving the fluidity retention in concrete used HWAE. 3 types of HWAE and ground granulated blast furnace slag(SG) are used in cement paste, mortar and concrete varing dosage amount and dosing time of HWAE and substitution ratio of SG respectively. According to using the HWAE of naphthalene sulfonates and SG, the fluidity retention of mortar and concrete is improved remarkably. And after 30 min, dosing method of HWAE is very effective in improving the fluidity retension and strength of concrete regardless of type of HWAE.

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