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The type and amount of filler are amongst the most important parameters influencing rheological, mechanical and durability characteristics of self consolidating concrete (SCC).Influence of using a limestone powder, the filler portion of reactive basalt filler and a type of class C fly ash on the fresh properties, alkali–silica reactivity and transport properties were investigated in this study.Preface The Eighth National Congress of COSATU was a watershed in all respects.It adopted a medium-term vision and programme for COSATU aimed at building working-class power.This study aims at determining the influence of the formwork material on transport properties of concrete cover when using self-consolidating concrete (SCC). The plywood (PW) formwork material which is relatively rough and absorbent compared to the PVC material that has a very smooth and non-absorbent surface.A total of 17 SCC and highly flowable concrete mixtures with wide range of slump flow and T moulds made with either PVC or PW.It helped to unite the Alliance and to focus the movement as a whole on the challenge of defending our electoral victories.Immediately after the Congress, the Alliance achieved a landslide victory for the ANC in the 2004 elections.

He has also pioneered the development of efficient systems for dynamic kinetic resolution of alcohols and amines based on combined metal and enzyme catalysis.SCC does not use a high proportion of water to become fluid - in fact SCC may contain less water than standard concretes.Instead, SCC gains its fluid properties from an unusually high proportion of fine aggregate, such as sand (typically 50%), combined with superplasticizers (additives that ensure particles disperse and do not settle in the fluid mix) and viscosity-enhancing admixtures (VEA).However it is laborious and takes time to remove by vibration, and improper or inadequate vibration can lead to undetected problems later.Additionally some complex forms cannot easily be vibrated.

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