Research on the Sulfate Corrosion-Resistance Admixture for Concrete

Ben Ju Yang; Qiu Yi Li; Song Gao; Tao Li

doi:10.4028/www.scientific.net/AMR.250-253.327

Paper Titles

The Finite Element Analysis of Coupling Law of Stress Field / Seepage Field in Impermeable Stratum Medium
p.298

Experimental Study on Sustainable Concrete with the Mixture of Low Calcium Fly Ash and Lime as a Partial Replacement of Cement
p.307

Influence of Retarders on the Microstructure of Hardened Building Gypsum Paste and the Mechanism of its Strength Loss
p.313

Effect of Citric Acid on the Crystal Morphology of Gypsum and its Action Mechanism
p.321

Research on the Sulfate Corrosion-Resistance Admixture for Concrete
p.327

Finite Element Analysis of Compressive Strength of Recycled Coarse Aggregate-Filled Concrete
p.331

Numerical Experiment on Size Effect for SFRC Splitting Fracture
p.335

The Gray Solar Heat Reflecting Coating with Insulating Heat and Lowering Temperature
p.340

Assessment of Government Contractor Classification System in Saudi Arabia
p.345

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Research on the Sulfate Corrosion-Resistance Admixture for Concrete

Abstract:

In this paper, a concrete sulfate corrosion-resistance admixture is developed with anhydrite (CaSO₄), super fine slag powder (P800) and anhydrous calcium sulfo-aluminate (C-S-A). It is optimized by means of systematical research on specific surface area, setting time, expansion ratio, compressive strength ratio, corrosion resistance coefficient and expansion coefficient of 20 mixes, which are designed based on the hydration mechanism and performance requirements according to JC/T1011-2006. This new type sulfate corrosion resistance admixture has good performance and completely satisfies the requirements of industry standard JC/T 1011-2006 regarding “Sulfate Corrosion-Resistance Admixture for Concrete”, and has declared Chinese national invention patent (201010256189.2).