How do you build a self compacting concrete?
How do you build a self compacting concrete?
A simple tool has been designed for self compacting concrete (SCC) mix design with 29% of coarse aggregate, replacement of cement with Metakaolin and class F flyash, combinations of both and controlled SCC mix with 0.36 water/cementitious ratio(by weight) and 388 litre/m3 of cement paste volume.
What is SCC in construction?
Self-Compacting Concrete (SCC) is defined as concrete that has an ability to flow under its own weight, to fill the required space or formwork completely and to produce a dense and adequately homogenous material without a need for vibrating compaction, [1].
What are the materials used in self compacting concrete?
Self-Compacting Concrete Materials
- Fly ash: Used to improve the filling of the internal concrete matrix, resulting in fewer pores.
- Ground granulated blast furnace slag (GGBS): GGBS helps improve the rheological properties of concrete.
- Stone Powder: Incorporated to improve the powder content of the mixture.
What is the need of self compacting concrete?
Self-compacting concrete is a non-segregating concrete that is placed by means of its own weight. The importance of self-compacting concrete is that maintains all concrete’s durability and characteristics, meeting expected performance requirements.
Is code for Self-Compacting concrete?
This paper deals with the Mix design of Self-Compacting concrete. The highlight of this paper is, simplest process of Mix design according to Indian Standard Code of Mix design (IS-10262) and It follows all the design conditions in line with Indian Standard Code of Reinforced Concrete Structure (IS:456).
What is Flow concrete or self compaction concrete?
Self-compacting concrete (SCC) is a flowing concrete that does not require vibration and, indeed, should not be vibrated. The consistence of the concrete is specified and measured as a flow rate rather than the normal slump test. SCC offers: Health and safety benefits (as no vibration is required).
What is self flowing concrete?
Self-consolidating concrete or self-compacting concrete (SCC) is a concrete mix which has a low yield stress, high deformability, good segregation resistance (prevents separation of particles in the mix), and moderate viscosity (necessary to ensure uniform suspension of solid particles during transportation, placement …
What is concrete workability?
Workability of Concrete is a broad and subjective term describing how easily freshly mixed concrete can be mixed, placed, consolidated, and finished with minimal loss of homogeneity.
What is meant by self curing concrete?
Self-curing concrete is one type of modern concrete, which cure itself by retaining water (moisture content) in it. The use of POLYETHYLENE GLYCOL in conventional concrete as an admixture helps better hydration and hence the strength of concrete.
What are the factors affecting the strength of concrete?
Factors that Affect the Strength of Concrete
- Water/Cement Ratio. The ratio of the weight of water to the weight of cement is called Water/Cement ratio.
- Compaction of Concrete.
- Ingredients of Concrete.
- Curing of Concrete.
- The Shape of Aggregate.
- Maximum Size of Aggregates.
- Grading of Aggregate.
- Weather Condition.
How do you test for self compacting concrete?
Test methods to determine workability of SCC are:
- Slump flow test.
- V Funnel Test.
- L Box Test.
- U Box Test.
- Fill Box Test.