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JCR. 2020; 7(4): 1295-1300

Performance Analysis of Bubble Slab Using Rice Husk Ash as a Partial Replacement of Cement

Dr. Ra. B. Depaa, V Priyadarshini, Mohammed Muzzammil Ahmed, Bhaskar Das, Sh. Joyshanker Sharma.

Bubble slab is a lightweight, concrete saving slab construction technology. In bubble slab, some amount of concrete is replaced by employing a hollow high-density polyethylene ball. The ball is placed in such parts of the slab where the uses of concrete donít perform any structural function. Uses of high-density polyethylene ball (HDPE) reduces the burden of the slab. Due to the reduction of the load of the slab, the load on the column also reduced. In this performance analysis comparison between bubble slab with a uniform arrangement of HDPE ball and bubble slab with an alternate arrangement of HDPE ball is done. In this paper loading capacity, deflection, and compressive test value of both types of the slab are presented. Also, mix design for M25 concrete with 15% replacing the rice husk ash is presented.

Key words: Bubble slab, Rice husk ash (RHA), High-density polyethylene hollow ball (HDPE), Concrete

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