Many trial batches and laboratory tests are required to use a designed mixture.The cost of construction is costlier than conventional concrete construction.There is no globally accepted test standard to undergo an SCC mix design.Higher precision is required when measuring and monitoring.Construction costs are much more higher, compared with regular concrete.Hence, concrete can be easily pumpedover longer distances and heights compared to traditional concreteĭisadvantages of (SCC) Self Compacting ConcreteĪs with any construction material, self-compacting concrete faces the following limitations: SCC requires a lower pumping pressure.Reduced noise during placement as no vibration is required.Allows for innovative architectural features, since it can be used in complex forms.Allows for easier pumping, and there are many placement techniques available.Creates high-quality structures with improved structural integrity.Eliminates problems associated with concrete vibration.Creates smoother and more aesthetic surface finishes.SCC enables freedom in designing concrete structures.The SCC construction is faster than normal concrete.Fast placement without mechanical consolidation.Reduces permeability in concrete structures.Minimizes voids in highly-reinforced areas.High durability, strength, and reliability.Self-compacting concrete comes with several advantages compared with regular concrete. Construction of earth retaining systemsĪdvantages of (SCC) Self Compacting Concrete.Structures with complex reinforcement distributions.Retrofitting and repairing constructions.Construction of raft and pile foundations.The main applications of this type of concrete are the following: Resistance to segregation: the ability to retain the coarse components of the mixin suspension in order to maintain a homogeneous.Passing ability: the ability to pass through congested reinforcement withoutseparation of the constituents or blocking.Flowing ability: the ability to completely fill all areas and corners of the formwork into which itis placed.The three properties that characterise a concrete as self-compacting Concrete are : It is a fluid mixture suitable for placing in structures with Congested reinforcement without vibration and it helps in achieving higher quality of surface finishes. no segregation) thus allowing self-compaction that is, material consolidation without addition of energy. Self-compacting concrete (SCC) can be defined as a fresh concrete which possesses superior flow ability under maintained stability (i.e.
Such concrete should have relatively low yield value to ensure high flow ability, a moderate viscosity to resists segregation and bleeding and must maintain its homogeneity during transportation, placing and curing to ensure adequate structural performance and long termdurability. Self-compacting concrete (SCC) is a concrete which flows under its own weight and doesn’t require any external vibration for compaction, it has revolutionized concrete placement. Self-compacting concrete (SCC) – Advantages, Disadvantages and Applications Transport, pumping, placing and finishing.Material Use In (SCC) Self Compacting Concrete.Disadvantages of (SCC) Self Compacting Concrete.Advantages of (SCC) Self Compacting Concrete.Applications of Self-Compacting Concrete.Self-compacting concrete (SCC) – Advantages, Disadvantages and Applications.
You can adjust the percentages of fines and coarse by looking at the concrete produced during trial.Īdmixtures plays an important role in properties of fresh concrete specially in workability and retention.ĭo select admixture correctly to ensure no failure during actual use of concrete.Īll can reply to this thread with there mix design of same grade, this will help other to understand designing in more better way and can do a cost optimization. In case of pump concrete the fine content is kept above 45% Ration of fine aggregates to coarse aggregates kept between 35:75 to 40:60
In general, for direct placement concrete You can modify the mix design by changing the specific gravities of materials which will make it relevant as per the material available at your place.Ĭhanging the specific gravity will change the weight of material in mix design which is automatically calculated.ĭo not use this mixes directly without doing prior trials of it, the data provided is for educational and better understanding of mixes.Īfter doing trial, if any issue observed, you can do adjustment by adjusting the % of each size of aggregate to achieve the required properties of fresh concrete.ĭo ensure total of all aggregate percentage in mix should some to 100% The complete mix design file is attached herewith. Concrete Mix Design for M30 grade for Self Compacting ConcreteĬoncrete mix Design for M30 Grade concrete with GGBS for self compacting application is as follows
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