JCE_V2_N4_RP5
Effect of Addition of Combination of Admixtures on the Properties of Self Compacting Concrete Subjected to Sulphate Attack
Shanthappa. B.C.
Prahallada M.C.
Prakash K.B.
Journal on Civil Engineering
2249 - 0779
2
4
34
39
Self Compacting Concrete, Sulphate Attack, Superplasticizer, Viscosity Modifying Admixture, Air Entraining agent, Accelerator, Retarder, Water Proofing Compound, Shrinkage Reducing Admixture
This paper presents an experimental investigation on the effect of acid attack on the properties of SCC produced by the combination of admixtures such as (Superplasticizer + Viscosity modifying admixture + Air entraining agent + Accelerator), (Superplasticizer + Viscosity modifying admixture + Air entraining agent + Retarder), (Superplasticizer + Viscosity modifying admixture + Air entraining agent + Water proofing compound ) and (Superlasticizer + Viscosity modifying admixture + Air entraining agent + Shrinkage reducing admixture). The concrete testing specimens was prepared by a mix proportion 1:2.7:6.1:5.1 with cement: fly ash: sand: coarse aggregate with a water/binder ratio of 0.38. Specimens after 28 days of curing were immersed in sodium sulphate solution of 5% and 10% concentrations for 90 days. After 90 days of immersion, the specimens were removed from sulphate media, weighed accurately and tested for their respective strengths. SCC produced with above combination of admixtures show better resistance to sulphate attack as compared to SCC produced with combination of admixtures (SP+VMA) only.
September - November 2012
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