Effect of additives on the mechanical properties of some cement products

In this work the effect of additives on the mechanical properties of some cement products were studied. After a 14day curing period, it was observed that, at 20% replacement level, PBA gave a compressive strength of 10.204 N/mm2 whereas SDA concrete gave a compressive strength of 8.163N/mm2. Similarly, compressive strengths of 5.405N/mm2 and 14.80N/mm2 were obtained for PBA and SDA respectively at 40% replacement level. These fell within the standard compressive strength for classes A, B and C blocks which are 4.0N/mm2 (min.), 3.0N/mm2 (min) and 2.5N/mm 2(min), respectively. With the 20% and 40% replacement with PBA and SDA showing these compressive strengths, a larger amount of cements meant for mortar preparation would be saved and the wastes disposal problems would be avoided. Similarly, the sanitation problem created from the palm oil production as well as the furniture industries would be reduced.

Author(s): Michael Akrofi Anang  , Samuel Kofi Tulashie and Kwasi Opoku Boadu

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