Fresh and hardened properties of self consolidating concrete Playboy totally free hot chat mobile

Experiments were conducted to determine the packing density of different combination of aggregates The packing density of aggregates was determined experimentally, using a modified version of the test procedure described in [21]. Apart from economic benefit due to lower cement content, research has shown that the packing density has significant influence on the fresh and hardened properties of concrete [20].

Step 3: The mixed aggregates were poured into bucket without any compaction.

Step 4: Then, mixed aggregates were filled in a cylindrical container of known volume. PROPORTIONS OF AGGREGATES WITH CORRESPONDING EXPERIMENTAL PACKING DENSITYmore than 10 times the diameter of the maximum size of aggregates used to eliminate the wall effect.

The flowability and segregation resistance of freshly mixed concrete specimens were examined by the V-funnel apparatus, while the characteristics of passing ability were investigated with the L-box apparatus.

Cylindrical concrete specimens of 100 mm diameter × 200 mm length were investigated for compressive strength. (2015) Evaluation of Fresh and Hardened Properties of Self-Compacting Concrete.

The results of flexural strength of concrete beam are presented in Table 5.

Flexural strength of beam was decreased as compressive strength of concrete decreased up to 550 kg/m3 volume of binder.10 indicates a good correlation between the compressive strength and W/B ratio.The compressive strengths for the different mixtures varied from 57 MPa to 66 MPa. Aggregates with higher packing density result in lesser void content, in turn minimising the volume of paste to fil up the voids. Packing density of aggregates is an indicator of the voids content.The compressive strength for 450 kg/m3 binder and 0.36 W/B ratio was observed around 62.65 MPa.

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