·According to Mehta and Monteiro [47] the density of fresh concrete is also affected by the porosity texture shape and size of aggregates As later confirmed by the air content test results Table 6 the rougher texture and less rounded geometry of CRA 2 led to a greater air entrapment in the mix also affecting the fresh concrete density
·Concrete a fundamental material in civil engineering undergoes complex interactions during its formation notably influenced by workability and heat of hydration
·Strength of Concrete & Workability Relationship The strength of concrete is the most important property for us It depends on density ratio or compaction and compaction depend on sufficient workability Fresh concrete must have a workability as compaction to maximum density is possible with a reasonable amount of work
·Results showed that unlike the characteristic of other established pozzolans RHA significantly reduced the workability of wet concrete and the rate of compressive strength gain over curing time
·Workability of concrete is ease with which a freshly mixed concrete can be placed compacted & finished without segregation Learn more about Workability and factors Workability is an important property of a fresh concrete mix This critical property is linked to both compaction and strength and the ideal workability varies based on the
·It involves filling a conical mould with fresh concrete then lifting the mould and measuring how much the concrete "slumps" or settles The Concrete Slump Test is a simple and widely used test conducted to measure the workability or fluidity of a concrete mix Its popularity stems from its ability to provide immediate results on site with
·superplasticizer on workability of concrete confirmed that slump of fresh concrete can be optionally controlled in all mix designs if Superplasticizer is added Since workability of low water/cement ratio concrete is difficult to control addition of Superplasticizer can usefully maintain the initial slump of mixed concrete In addition
·Japanese scientists in the concrete sphere have performed a lot of studies on the rheology of fresh concrete from early times Since Y Tanigawa and H Mori proposed the concept and method of workability design of concrete in 1988 [1] [2] the objective and problems necessary to be solved became clear for the study of concrete rheology A great deal of effort
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