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2021-2-18 Maximum possible value of Compacting Factor for fresh (green) concrete is: Q.4 Maximum possible value of Compacting Factor for fresh (green) concrete is: (A) 0.5 (B) 1.0 (C) 1.5 (D) 2.0 Q.5 As per IS 800:2007, the cross-section in which the extreme fiber can reach the yield stress, but cannot develop the plastic moment of resistance due to failure by local buckling is classified as (A) plastic section (B) compact section (C) semi-compact section (D) slender section Q Compacting factor of fresh concrete is done to determine the workability of fresh concrete by compacting factor test as per IS: 1199 1959. The apparatus used is Compacting factor apparatus. Procedure to determine workability of fresh concrete by compacting factor test. i) The sample of concrete Compacting factor of fresh concrete is done to determine the workability of fresh concrete by compacting factor test as per IS: 1199 1959. The apparatus used is Compacting factor apparatus. Procedure to determine workability of fresh concrete by compacting factor test. i) The sample of concrete is placed in the upper hopper up to the brim. 2017-2-14 6. Compact each layer of the concrete fully by using a steel rod or mechanical vibrator. ( There should be no air voids present in the concrete) 7. Now take the weight of the cylinder with concrete (Fully compacted concrete) and find out the weight of the concrete (W2). 8. Calculate the compaction factor 2016-2-15 Slump test and compacting factor tests are the most widely used workability tests for concrete. The degree of workability of concrete depends on the values of test results obtained from slump test and compacting factor tests. 2017-11-15 Compaction factor test of concrete:-The compacting factor test is performed to find out the workability of concrete. Slump test doesn’t give accurate results for the low workability of concrete when the slump is <50mm. Here to dealt with Compaction factor test used for concrete 2020-5-26 Introduction. The compacting factor test is conducted to determine the workability of fresh concrete. Although the most common method of determining workability is the slump test, it does not give an accurate result for the concrete 2017-10-6 Page 3 of 7 > compaction of concrete Table 1 Characteristics and applications of immersion vibrators Diameter Recommended Average Radius of Rate of concrete of head 2frequency1 3,5amplitude action placement 4,5 (mm) (Hz) (mm) (mm) (m3/h per vibrator) Application 20–40 150–250 0.4–0.8 75–150 1–4 High slump concrete in very thin Note: More is the compacting factor more will be the workability. Procedure: First the concrete is placed gently at the upper hopper so that no work is done on concrete to produce compaction. The bottom door of the upper hopper is then released and the concrete 
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